SDA //SCL

What is SDA or Serial Data, and CLK / SCL or Serial Clock Signal in a Digital Electronic Circuit? We have noticed that televisions, the latest audio devices, Bluetooth devices, WiFi devices, and various digital devices have SDA and CLK or SCL written in specific places on their circuit boards. For example, SD and CLK or SCL are written near the two pins of the TV's digital tuner, and SD and CLK / SCL are reported near the two pins of the memory IC. This SD stands for Serial Data Signal and CLK / SCL stands for Serial Clock Signal. What is a CLK / SCL or serial clock signal in a digital circuit? In digital circuits, the serial clock (often called CLK / SCL) is a signal-synchronizing data transfer between various components or devices in a Digital Circuit. It is a rhythmic signal that controls the timing of sending or receiving bits of information within a circuit. The CLK / SCL signal ensures that the data sender and receiver operate at the same speed and allows accurate and synchronized communication. The functionality of the serial clock (SCL) signal is significant in serial communication, where data is transmitted one bit at a time. Digital devices that communicate serially use the rising (leading edges) or falling edges of the clock signal [see figure below] to determine when to read or change the state of the data being sent or received. This synchronization ensures that the sender and receiver are compatible, preventing data loss or corruption by enabling them to process information simultaneously. In essence, the serial clock (CLK / SCL) signal acts as a metronome for the circuits of digital devices, ensuring that data is sent and received in a coordinated and organized manner while maintaining the integrity and accuracy of the information being transmitted and received What is SDA or serial data signal in a digital circuit? A serial data signal in a digital circuit refers to transmitting data where individual bits of information are sent one after another along a single communication channel. This contrasts with parallel data transmission, where multiple bits are sent simultaneously through separate channels. In a serial data signal, the bits are typically transmitted using a clock signal that synchronizes the sender and receiver devices. The data is serialized, converted into a stream of bits, and sent sequentially. This method is commonly used in various communication systems, such as USB, Ethernet, SPI (Serial Peripheral Interface), I2C (Inter-Integrated Circuit), and serial ports. Serial transmission allows for more extended distances of communication and is often more cost-effective in terms of cabling because it requires fewer wires than parallel transmission. However, it generally operates at slower speeds than parallel transmission for transferring the same amount of data.

T-con ఓల్టేజ్ understand

T-CON board is also called logic board or control board. T-CON is the English abbreviation of Timming Controller, which means timing control circuit. At present, there are not many T-CON boards in China, CRT TV has a history of several decades. The traditional CRT TV works by scanning, and the signals are serial. The current TV standard is based on CRT TV, so the TV signal passes through the TV main board. The output after decoding is also a serial signal. We know that the liquid crystal display works in a matrix display mode, and it processes parallel signals. That is to say, if the TV signal decoded by the motherboard is sent directly to the LCD display, the LCD display is Can't be displayed. There must be a device that converts serial signals into parallel signals so that the LCD can display TV signals, so there is a T-CON board, which is a device that converts serial signals into parallel signals. The TV signal output by the main board is disassembled and recombined in the T-CON board to finally form the control signal and data signal required for the row and column drive of the liquid crystal display. The general T-CON board circuit can be roughly divided into three parts: signal processing circuit (main IC and its peripheral circuits), gray-scale forming circuit (GMA forming circuit), and power supply circuit (DC/DC circuit). The signal processing circuit mainly converts the TV signal transmitted from the motherboard into the control signal, pixel signal, auxiliary signal, etc. required for the LCD display; the gray-scale forming circuit mainly forms the gray-scale signal required for the LCD display (the grayscale can make The display of the LCD screen is more layered, making the display richer and more vivid). The power supply circuit mainly forms the signal processing IC, the power supply voltage of the row drive and the column drive, and the switching voltage of the TFT (TFT turn-on voltage VGH, TFT turn-off voltage VGL) and so on, posted in the world of electronics group

firmware

Darla.india

Some chassis it is possible to easily replace the panel and remote control (in fact, not only them, but it is most interesting when transferring firmware). To do this, the necessary files are recorded on the USB flash drive, the USB flash drive is stuck in the TV, the TV turns on and changes the files of the remote control or panel itself. Tested on the popular CV338H-T42 mine, thanks.Perhaps this method is applicable to other chassis, but you need to look.

Before any manipulations with the firmware, I strongly recommend that you dump the native firmware! Instructions are in the topic header.

Panel Replacement

To replace the panel, take a USB flash drive, format it in FAT32 and create the CTV_USB_EU folder in the root. We need to put the Customer_1.ini files and the panel ini file referenced by Customer_1.ini there. Where to get these files?

1. We take the file Customer_1.ini from the firmware that we are going to install . Unpack it, and from the tvconfig section we get the file /config/model/Customer_1.ini . Copy it to the CTV_USB_EU folder on the USB flash drive and open it with a text editor.

We see something like the following:

The name we need is highlighted in red. Remember it.

2. From the native firmware we get the ini-file of the panel. To do this, unpack the dump, find in tvconfig the same Customer_1.ini and the name of the panel ini-file in it - everything is exactly the same as in item 1. Next, go to / config / panel / , take the desired file and copy it to a USB flash drive in the CTV_USB_EU folder . Now we recall the name of the ini-file from item 1 and call our native ini in the same way. If we rename the file, then inside it we also edit the name to a new one:

3. Now we have a CTV_USB_EU folder on the USB flash drive with two files:

Customer_1.ini

FullHD_CMO216_H1L01.ini (the name of the panel ini-file may be different)

We take this USB flash drive, insert it into the switched off TV, turn it on, wait until the telly sets everything up and after rebooting we have a TV with a modified ini-file of the panel. Profit!

Remote control replacement

To replace the remote control, we take a USB flash drive, format it in FAT32 and create a CustomerConfigFile folder in the root , in which we create another IR folder . We will put all the necessary files into it.

1. Unpack the native dump.

2. Take the tvconfig section , find the /config/PM.bin file there and copy it to the USB flash drive.

3. We take the system section , from the / lib / modules / folder, copy two files to the USB flash drive:

mdrv-ir.ko

rc-keymap-tv.ko

4. Copy the irconfig.ini file (75 bytes) to the USB flash drive

and open it in a text editor .

We see the following:

These are the remote control codes that are used when turning on the TV, we need to replace them with ours.

5. Open the MPOOL.bin file in a hex editor, go to the offset 0x1E0000 from the beginning of the file. There are environment variables, these are text parameters, we are interested in three of them:

ir_header_code0 = 0x XX

ir_header_code1 = 0x YY

power_key = 0x ZZ

The found values need to be inserted in the appropriate places in config.ini

6. Now we have the CustomerConfigFile / OR folder on the USB flash drive / with four files:

config.ini

mdrv-ir.ko

PM.bin

rc-keymap-tv.ko

We take this USB flash drive, insert it into the switched off the TV, turn it on, wait until the telly sets everything up and after the reboot we have a TV with a working native remote control. Profit!

After changing the remote control, disconnect the TV from the network to update the codes in the bootloader.

Posted in world of electronics group

cof ic voltages understand

I know all the LCD LED TV technician many time face problem during checking the voltage of Panel COF IC which is used in every single LCD LED panel. So today I am going to discuss about all type of COF IC voltages.

                                Darla India

* What is COF IC: - COF IC is the main part of the all type of LCD LED panel because main board and panel getting connected through the COF ic and all the signals goes in to the panel with the help of COF IC. I will mostly focus on the How to download COF ic datasheet, Common voltages of the COF IC, if you can not get the COF ic datasheet then what you can do and how to make datasheet COF IC datasheet yourself.

* How to get COF IC Datasheet: I would like to tell all of you, you can't get the COF IC datasheet from the internet most time, so if you want to get COF IC datasheet immediately then you will contact with your friends or any other LCD LED TV technician or you can contact with YouTube who provide COF IC datasheet free of cost or you can buy COF IC datasheet from the YouTube who want to cell their experience and hardworking things for the few donations.

* COMMON VOLTAGES OF COF IC DATASHEET: So guys here I'm going to discuss about the main and common voltage of COF IC which is use in all LCD LED TV panels. So lets get started

(Darla.india) posted in world of electronics group

   i) VGL voltage (20v to 30v) This is the most common voltage of any kind of panel like LCD panel or LED panel and if this voltage is getting weak and missing the you will get NO PICTURE problem in your panel.

   ii) VGL (-5v to -12v) VGL voltage also most common voltage for the panel. SLOW MOTION PICTURE will show in the panel if this voltage do not produce and can not getting in the panel COF IC.

    iii) DVDD (3.3v) This voltage have many names like VDD, VLOGL, CV33V, etc. So if this voltage is missing in the panel COF IC then main problem we get in the panel that is SLOW MOTION PICTURE.

   iv) AVDD (12v to 20v) similarly this voltage have more name like VDDA, VSA,etc. If this voltage do not produce in the panel through the COF IC then the msin problem is getting in the panel is NO PICTURE.

   v) CKV1, CKVB1, CKV2, CKV2 these are not voltages these are signals track which are used for control the picture stability and double imaging so if you get DOUBLE IMAGE problem in the any panel the cut these type of track lines your DOUBLE IMAGE problem will be fix and make graphic properly

Posted in world of electronics group in telegram...by Darla.India

PANEL VOLTAGES UNDERSTANDING

Darla:

L.C.D L.E.D T.V Panels Connection and Voltages Understanding

Here we talking about the main voltages and pin connection of L.C.D and L.E.D T.Vs

 Panels, every technician should know where to test and how to check voltages of each connection as they mention in Service Manual or schematic diagram or at least you should know the basic working voltages.

Connection Name Connection Working Voltages

1. VGL in Driver negative P.supply1 Around -10.5v

2. VCL in Driver negative p.supply2 Around -10v to -12v

3. VSS  Digital ground GND

4. VDD VDD is the logic supply input for the scan driver.

 

5. VGH Supply LCM driver output Around 12v+ to 19.5v+

6. STV Vertical Sync Input. The rising edge of STV begins a frame of data. The STV input is used to generate the high-voltage STVP output. PulseL.C.D L.E.D T.V Panels Connection and Voltages Understanding

Here we talking about the main voltages and pin connection of L.C.D and L.E.D T.Vs

 Panels, every technician should know where to test and how to check voltages of each connection as they mention in Service Manual or schematic diagram or at least you should know the basic working voltages.

Connection Name Connection Working Voltages

1. VGL in Driver negative P.supply1 Around -10.5v

2. VCL in Driver negative p.supply2 Around -10v to -12v

3. VSS  Digital ground GND

4. VDD VDD is the logic supply input for the scan driver.

 

5. VGH Supply LCM driver output Around 12v+ to 19.5v+

6. STV Vertical Sync Input. The rising edge of STV begins a frame of data. The STV input is used to generate the high-voltage STVP output. Pulse

7. CPV1 Vertical Clock-Pulse Input. CPV1 controls the timing of the CKV1 and CKVB1 outputs, which change state (by first sharing charge) on its falling edge.

 Pulse

8. CPV2

9. V.COM out Vertical Clock-Pulse Input. CPV2 controls the timing of the CKV2 and CKVB2 outputs, which change state (by first sharing charge) on its falling edge.

Common signal output TFT Clock pulse

Signal pulse

10. POL in Supply input common signal Signal

11.  VDC in Supply +5.0v min

12.  VON Gate-On Supply. VON is the positive supply voltage for the CKV_, CKVB_, and STVP high-voltage driver outputs. Around 20v+

13. V-OFF Gate-Off Supply. VOFF is the negative supply voltage for the CKV_, CKVB_, and STVP high-voltage driver outputs. Around 8V-

Brief Details of Panels Connection Points

VDD VDD is the logic supply input for the scan driver.

VON Gate-On Supply. VON is the positive supply voltage for the CKV_, CKVB_, and STVP high-voltage driver outputs.

VOFF Gate-Off Supply. VOFF is the negative supply voltage for the CKV_, CKVB_, and STVP high-voltage driver outputs.

STV Vertical Sync Input. The rising edge of STV begins a frame of data. The STV input is used to generate the high-voltage STVP output.

CPV1 Vertical Clock-Pulse Input. CPV1 controls the timing of the CKV1 and CKVB1 outputs, which change state (by first sharing charge) on its falling edge.

CPV2 Vertical Clock-Pulse Input. CPV2 controls the timing of the CKV2 and CKVB2 outputs, which change state (by first sharing charge) on its falling edge.

EN Enables the MAX17121. Drive EN high to start up the MAX17121 after a delay time, which is set by a capacitor at DLY.

CKVB1 High-Voltage Scan-Drive Output. CKVB1 is the inverse of CKV1 during active states and is high impedance whenever CKV1 is high impedance.

CKVB2 High-Voltage Scan-Drive Output. CKVB2 is the inverse of CKV2 during active states and is high impedance whenever CKV2 is high impedance.

CKVBCS2 CKVB2 Charge-Sharing Connection. CKVBCS2 connects to CKVCS2 whenever CPV2 and STV are both low (to make CKV2 and CKVB2 high impedance) to allow CKV2 to connect to CKVB2, sharing charge between the capacitive loads on these two outputs.

CKVCS2 CKV2 Charge-Sharing Connection. CKVCS2 connects to CKVBCS2 whenever CPV2 and STV are both low (to make CKV2 and CKVB2 high impedance) to allow CKVB2 to connect to CKV2, sharing charge between the capacitive loads on these two outputs.

STVP High-Voltage Scan-Drive Output. STVP is connected to VOFF when STV is low and is connected to VON when STV is hi

LINE output TRANSFORMER

FSV 14A001 (Samsung)
FSV 20A001
FCK 14A033
FCV 20A001
16,5V/NC/H/46V/185V/GROUND/NC/ABL/B+125V/COL

154-064P (Goldstar)
154-177B
FCK 14B047 (Akari)
COL/185V/B
+/GROUND/16V/24V/40V/ABL/H/AFC

154-064G (Goldstar)
154-177E
COL/180V/92V/125VBOOST/24V/12V/GROUND/ABL/H/AFC


FCM 14A025 (Samsung,
Blaupunkt)
FCM 1411L01
16,5V/AFC/H/24V/180V/GROUND/B+90V/ABL/125VBOOST/COL


DCF 1577 (Daewoo, Mitsuba)
DCF 2077
FSA 16012M
COL/B+/AFC/125VBOOST/16,5V/ABL/24V/GROUND/180V/H


FTK 14B011 (Aiwa)
COL/B+/25V/GROUND/180V/H/ABL/GROUND/AFC/15V


FCK 1411E10A (Etron)
190V/COL/NC/B+/NC/24V/ABL/GROUND/15V/H


JF 0208-0208C (Solitron)
COL/B+/GROUND/185V/H/ABL/GROUND/15V/AFC/24V


JF 0208-0210B (Sansui)
JF 0501-0501
COL/B+/180V/14V/24V/H/GROUND/ABL/AFC/NC


FCM 14B014N (Polytron, Digitec)

FCM 20B061N
JF 0601-19577
COL/B+/GROUND/200V/NC/H/NC/ABL/+12v/-12v


JF 0501-1206 (Sansui)
COL/B+/180V/16V/25V/H/GROUND/ABL/AFC/NC


L40B17100 (Sanyo)
COL_B+_NC_180V_AFC_GROUND_ABL_NC_H_GROUND


L40B09000 (Sanyo)
COL_B+_NC_AFC_GROUND_H_ABL_16V_NC_180V


L40B05500 (Sanyo)
COL_B+_NC_AFC_GROUND_H_GROUND_NC_NC_ABL


L40B09001 (Sanyo)
COL_B+_NC_AFC_GROUND_H_ABL_NC_NC_180V


6174Z-6040C (LG)
BSC 23-N0107
COL_185V_B+_GROUND_-14V_+14V_GROUND_ABL_H_AFC


BSC 24-08B (Tv China)
BSC 24-01N362
BSC 25-4803
BSC 25-N1616
BSC 25-0106
COL_B+_NC_AFC_GROUND_H_ABL_NC


BSC 25-T1010A (Tv China)
BSC 24-01N4014K
BSC 25-09N21A
BSC 25-09N20E
TEP_COL_TEP_B
+_TEP_TEP_GROUND_H_ABL_180V


BSC 60HZ (Changhong)
COL_B+_190V_GROUND_11V_16V_45V_ABL_H_AFC


BSC 24-2231HC (Panda)
COL_B+_46V_16V_GROUND_AFC_ABL_H_180V_NC


BSC 65A (Changhong)
COL_B+_190V_GROUND_NC_NC_14,5V_ABL_H_AFC


TFB 4067BD (Toshiba)
TFB 4125CH
TFB 4122HY/ES/CS/DY
BSC 23-N0102
COL_B+_185V_GROUND_NC_24V_12V_ABL_H_AFC


FCK 14A028 (Fuji Electric)
NC_B+_14V_24V_H_GROUND_ABL_180V_B+_COL


154-189C (Fuji Electric)
154-277C
FCM 20B027
COL_B+_180V_14V_22V_H_GROUND_ABL_AFC_NC


FUY 20C009 (Akari)
COL_180V_B+_GROUND_NC_24V_NC_ABL_H_AFC


FCK 14A006 (Digitec, Polytron,OK)
FCM 2015HE
FCM 14A032
KFS 60844A
NC_NC_GROUND_185V_15V_H_24V_ABL_B+_COL_


154-138K (Etron)
154-182H
190V_NC_COL_AFC_B+_43V_ABL_GROUND_12V_H


CF 0801 (Fujitec)
COL_B+180V_15V_24V_H_GROUND_ABL_NC_NC


CF 0854 (Fuji Electric, Siera)
CF 0582
COL_B+_GROUND_AFC_185V_H_25V_15V_GROUND_ABL


FSA 28027M (Fuji Electric)
COL_NC_NC_123V_12V_ABL_25V_GROUND_185V_H


BSC 24-01N4009A (Tv China)

COL_NC_B+_GROUND_NC_TEP_NC_ABL_H_AFC


BSC 22-2314H (Fujitec)
COL_B+_180V_15V_24V_AFC_GROUND_ABL_NC_NC


BSC 22-01N40J (Tv China)
COL_180V_115V_GROUND_22V_16V_ABL_H_NC_NC


F 0193 PEN1-SA (Sharp)
F 0194 PEN1-SA
COL_B+_GROUND_42V_12V_AFC_185V_GROUND_H_ABL
(cat: teg 12v pada FBT F0194=16V)


F 0042PE-M (Sharp)
15V_COL_24V_B+_ABL_AFC_GROUND_NC_180V_H


F 0063PE-M (Sharp)
F 0067PE-M
COL_B+_24V_12V_NC_AFC_GROUND_H_185V_ABL


F 0102KM-SA (Sharp)
COL_B+_GROUND_24V_14V_AFC_180V_GROUND_H_ABL


FA 060WJ-SA (Sharp)
COL_B+_GROUND_NC_12V_(AFC/-12V)_185V_GROUND_H_ABL


FA 061WJ-SA (Sharp)
COL_(B+130V)_GROUND_24V_12V_AFC_185V_GROUND_H_ABL


FA 113WJ-B (Sharp)
COL_B+_GROUND_24V_NC_AFC_180V_GROUND_H_ABL


FA 122WJ-B (Sharp)
COL_(B+130V)_GROUND_24V_NC_AFC_180V_GROUND_H_ABL


FTK 14A004P (Samsung)
16,5V_AFC_H_24V_180V_GROUND_NC_ABL_(B+125V)_COL


154-279C (Siera, Fuji Electric)
COL_(B+135V)_200V_GROUND_GROUND_25V_16V_ABL_H_NC


BSC 25-N0363

(LG 21FU6RL/PearlBlack)
COL_180V_B+_GROUND_INNER_26V_NC_ABL_H_AFC


8-598-858-00 (Sony)
8-598-11
COL_B+_200V_H_GROUND_-16,5V_GROUND_+16,5V_NC_ABL


QQH0132-001 (JVC AV-1438)
COL/B
+/40V/NC/25V/GROUND/H/ABL/180V/GROUND


JF 0501-19539 (Polytron
MX5262RF/Zepelin)
COL/B+/GROUND/185V/NC/H/25V/ABL/12V/Hpulse


BSC 25-1194D030 (SANKEN)
FSV 20A099
16,5V/24V/H/46V/180V/GROUND/NC/ABL/B+125V/COL


FTK 14A004F(S) (SAMSUNG)
16,5V/24V/H/-16,5V/185V/GROUND/NC/ABL/B+125V/COL


1. L40B18500 (S

FIRMWARE LINKS

SAMSUNG FIRMWARE SITE                          http://www.samsung.com/ag/support/download/supportDownloadMain.do#countryCode

LG FIRMWARE:        
http://www.lg.com/us/support

PHILIPS FIRMWARE:
http://www.support.philips.com/support/catalog_selector.jsp

PANASONIC:            
http://panasonic.jp/support/global/cs/tv/download/fw/index.html

SONY:                      
 http://esupport.sony.com/perl/select-system.pl

SHARP:                      
http://www.sharp-world.com/support/download.html

HP FIRMWARE:  
 http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&dlc=en&softwareitem=me-52748-1

EMERSON FIRMWARE:
http://www.emersonaudiovideo.com/support/download.php
Darla.india
FUNAI FIRMWARE:      
http://www.funai-corp.com/support/Firmwares.aspx

JVC FIRMWARE:          
http://www.jvc.net/worldwide/index.html

MAGNAVOX FIRMWARE:  
http://www.magnavox.com/support/download_list.php

TOSHIBA FIRWARE:      
 http://www.toshiba-om.net/firmware.php

VIZIO FIRMWARE:        
http://store.vizio.com/support/?tab=b - downloads

TECO FIRMWARE:      
http://www.teco.com.au/firmware.html

SYLVANIA FIRMWARE:    http://www.sylvaniaconsumerelectronics.com/support/download_list.php
Darla.india
https://t.me/joinchat/C1jgSUEqIZ3qj7Rz94JVUw
China board FIRMWARE:              http://www.tvrepairs.yolasite.com/lcd-led-plasma.php

BLINKING CODES

Darla.india (VU 3 NDV):

BLINKING CODES

Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).
Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.
Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.
Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.
Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.
Nine blinks - Replace D 6116 and D 6301 on the “G” board, do not re-solder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the “G” board or check connections. Make sure the regulator is -12 or -13 (negative).
Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the “ D” board. If the transistors are bad, check R8051 and IC8005, also on the “D” board.



One blink is not used for self diagnosis.
Intermittent problems
This is a great feature. You can also bring up these fault codes on-screen to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, press the following buttons: Display, Channel, 5, volume Minus, ( not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problems named, are abbreviated as, “OCP”, “OVP”, “V STOP”, ETC. We have repeated them in parentheses in the text for the “Blinks” described above so you can correlate between the diagnostic screen and the blink codes.
Now that you know about these self-diagnostics, how do you use them? Say that you have a set with a black screen. You see that the LED is blinking four times. This would tell you that you have no vertical sweep, which is why the video is muted. If it was blinking 6 times, you would know that you have a horizontal fault. It’s not a sure cure..
IMPORTANT: After you repair the unit, you MUST clear the values on this diagnostic screen. These codes do not reset themselves after the fault is corrected, so if you don’t clear them, you’ll be seeing “old” fault codes the next time you enter this screen. Clearing is done by going into the service mode (display, channel, 5, volume plus, then power ). Press 8 and Enter, which returns everything to the factory preset condition

BYPASS INVERTER

Darla.india (VU 3 NDV):
When power on the LCD TV, after 1 second the display will cut off. But the TV sound was normal
except no display only. The supply voltage to the inverter board was good and the inverter ON
signal from mainboard was present too. That’s mean the problem was on the inverter board or
CCFL lamps. After measured all suspected components on the inverter board, it seems that all
components were good. Since I do not have the CCFL Lamp Tester at the moment, i have used a
special method to test the CCFL lamps to check if they are working or not.

You need to be careful about this method because it could harm the components in the inverter
board. This method is called as “Bypass Inverter Protection” because it could let the inverter
board to continue provides high voltage to the CCFL lamps. In otheprotectionr words, this method will
let you know if either the CCFL lamps or the inverter board problem that had caused the LCD
TV to shut down after a second. Further inspection I found that this LCD TV was using OZ9938
IC as inverter IC. If you refer to the pin 3 in the diagram below you could see the pin
marking was “Timer” and the description as “timing capacitor to set striking time and
shutdown delay time”. This means that external capacitor will make the decision to “ON”
the CCFL lamps timing. If the voltage value reach on their setting voltages and the lamps
still not start-up, then the OZ9938 will stop working and lock up.



Now, when you short pin 3 of OZ9938 IC to ground, it will temporary cancel the backlight
system cut off protection feature and the LCD TV can be turned on with good display
without shutting down anymore. Look at the screen now to see if there are any black/dark
bar area and make sure the brightness are even in all angles. If the display and brightness
are good then this means the backlights are working fine and the problem is in the
inverter board. If you could see dark/black area then this means one of the LCD
backlight have problem. Do not turn on the LCD TV for too long for safety purposes.

CH 341A TUTORIAL

TUTORIAL ABOUT PROGRAMMER CH341A
Very good to all, today I want to post an excellent publication they did in the Facebook group, the author of this publication is the friend HECTOR AVILA. Without further ado I leave the text with the images as it was uploaded and thank you for  sharing  your knowledge with us.

"Esteemed, grateful for so much advice, on programmers and others who have been giving me these days, I want to leave you as a tutorial a detail of startup and use of the programmer ch341a that you buy and use these days ...

As you can see, the ch341a that you buy is the black edition, it comes with an adapter to SOLD over the 25SPI Flash memories that we usually find in 90% of the current mothers, photo attached.
To understand one, everything must be mounted in such a way that the pin one coincides in the programmer, the pin one of the bios must be soldered in the Adapter by aligning pin one as seen in the photo. On the other hand pin 1 of the adapter is oriented towards the coupling pin the programmer that would be pin 1 in the programmer.
As you can see the programmer has two spaces the first of 8 pins more oriented to the USB port, corresponds to the sector 25SPI and the oriented towards the clamping pin belongs to the sector 24SPI, we will use the more oriented towards the USB port, as this in the photo.
Now let's talk about drivers programs and bins. The driver and software are attached in this publication, they have to use the CH341PAR version, this can be used in Windows XP, 7, 8, 8.1 and 10 both 32 and 64bits. Give it to the Setup, alone it will identify if it is of 32 or 64 bits, then to Install it will finally end up saying that the installation was successful. Photos attached.
To confirm, go to the device manager and locate the USB-EPP / 12C..CH341A device in the Interfaces section.
Ready now the software, which is called CH341A programmer has a chip icon which if we double click should open the programmer, remember that we have put in some usb our CH341A with the Bios SPi25 to work already installed. We will see the open application ready to use.
We start by selecting the memory data section the type of bios to use, we choose 25SPI and click on DETECT, now the data should come out of our memory, the data will automatically come out, we must review Manufacture, memory name and memory size, and compare them with the memory inserted in the Adapter confirming that everything is fine. Now in the menu bar we select Verify, this step only confirms that the memory is correct, then erase to erase memory.
Ready to record, open open we select where is the bin that we will use to record, in the case of the government netbook we will select the bin of the corresponding generation, contribution of the friend ELVIS LEDESMA, only in case it is a government netbook, and now we click on AUTO, from there the programmer takes control and performs verification recording and verification, after a while it will end, please do not touch anything and do nothing during the process, eliminate the anxiety, the bug is working quiet there is no reason for you to lose your serenity, see the little lights and take a mate. Clarification while recording turns on a dim green LED that indicates the process, when it is finished it turns off.
Disconnect the USB from the system and then disconnect, disassemble the adapter, dissolve the memory and release it to the mother again.
Ready all finished.


Observations and myths
Let's be careful, let's work with gloves, in that way we avoid unwanted surprises, remember that we are working with voltages of 5v, 3.3v and 1.8v and the bare hand has up to thousands of volts at low amperage, if we are an electrostatic power plant.
Connect and disconnect the USB carefully, remember what usually happens when we unplug a pendrive without closing the connection ... While it has protections there are try to be methodical.
Do things with peace of mind, let's take a good look at pin 1 on the Adapter and the programmer, if we put it backwards, I found that you simply can not read it and in fact the machine d

oes not detect the USB, something good for the clueless.
Check tensions and the CH341A black edition correctly fits the voltages correctly although the manual does not clarify the chip makes the correct switxheo to the appropriate voltages, still do not abuse if we use a line of resistances that are 60ohms to adapt to 1.8v
As I said before the Chinese put a lot of wave for this programmer and basically works on any windows ... For the lovers of linux I will search if there is something, xo we already know that it works well in windows, bone the eggs come without hair .. .
I think that's it. Please, if I forget something, clarify it in the publication, for those who helped me and clarified my doubts my deepest gratitude and I give back to the community in this humble minute everything necessary to laburar.
The use of the crimpeable adapter is still pending, which simply prevents us from welding and that of the soic clamp which allows us to do everything without removing the chip. Not much more to add ... I hope it's useful, I embrace everyone

USB FLASH DRIVE

Darla.india (VU 3 NDV):
A USB flash drive can be used to update the firmware in a LCD TV.
Step

Launch the default web browser by selecting it from the "Start," "All Applications" pop-up menu. Go to the website of the manufacturer of your LCD TV. Click on the "Support" link on the website.

Step

Select the name and model number of the LCD TV from the drop-down menus below the "Download firmware" tab on the web page that appears.

Step

Right-click on the most recent firmware update that appears beneath the drop-down menus. Select "Save as" from the pop-up menu. Click on the "Save" button on the pop-up window that appears. Wait as the firmware update file is downloaded to the desktop

Step

Insert the USB flash drive in a USB port on the computer. Wait for the icon of the USB flash drive to appear on the desktop.

Step

Double-click on the firmware update file once it has downloaded to decompress it. Double-click the firmware program to launch it. Follow the menu prompts to install the firmware on to the USB flash drive.

Step

Right-click on the icon of the USB flash drive. Select "Eject" from the pop-up menu. Remove the USB flash drive from the computer.

Step

Insert the USB flash drive in the USB port on the LCD TV—the port will either be behind a panel on the bottom front, on the left or right side or on the back.

Step

Turn on the LCD TV. Press the "Menu" button on the remote. Navigate to "Settings." Select "Update" or "Service" from beneath "Settings." Select "USB" from the list of choices presented beneath "Update" or "Service."

Step

Select the "Start" or "Begin firmware update" button. Wait as the LCD TV updates its firmware using the file from the USB flash drive.

Step

Remove the USB flash drive from the USB port once the LCD TV reboots itself and then shuts itself down

INVERTER PROTECTION

                                     HOW TO REMOVE                                                                BACKLIGHT INVERTER  PROTECTION 
How to remove the inverter protection
Several ways to disable protection in popular PWM controllers LCD inverters.
Attention!
Not all methods are checked by the author of the article, therefore can not be recommended to repairmen who do not have sufficient experience and theoretical knowledge.
For the purpose of fire safety (first of all) and to prevent high voltage supply of lamps to other circuits in the LCD and LED TVs, the inverter (LED driver) protection is provided, which turns off the backlight or the entire TV in emergency modes.

When repairing and diagnosing an LCD TV, it often becomes necessary to check the individual lighting components - lamps, transformers and other power elements, but it is not always easy to diagnose them due to the instantaneous blocking of the operation of the lamp power converter (LED). Sometimes it is impossible even to determine the reason for leaving to the defense. The backlight often does not even have time to flash, or lights up and immediately goes out. Often even it is not clear - the lamp or the inverter is to blame. It is not possible to carry out the necessary measurements, generation is disrupted for various reasons, for example, due to distortion in the loads. Joint efforts and researches of masters of various repair conferences were options for blocking the protection of inverters in order to obtain the possibility of diagnostics. In such cases, if the inverter can operate in emergency mode, you can already see, which of the lamps does not shine, or identify one of the faulty transformers ... or detect a defect in other circuits. The same situation can arise with LED backlighting.

Attention!!! - After repair, it is necessary to restore the efficiency of the protection circuits in order to ensure the safe operation of the TV!

There was a discussion at one of the forums monitor.net.ru/forum/lcd-info-239071.html.

Readers are invited to review previously published examples of how to disable the inverter protection for the following PWM controllers.
The list is periodically updated as new data arrive.

AP3041M-G1 , AT1741 , BA9741 , BD9211F , BD9215AFV , BD9222FV , BD9240 , BD9261FP , BD9270F , BD9275F , BD9276EFV , BD9397EFV , BD9470EFV , BD9766VF , BD9777 , BD9828 , BD9882F , BD9883, BD9884VF , BD9896 , BD9897 , BD9897F , BD9897FS , BI3101 , BIT3102A , BIT3102B , BIT3105 , BIT3193 , BIT3251 - BIT3252 - BIT3267 , BIT3713 , DDA009 , DT8211 , ILN816GN , INL837GL , FAN7311 , FAN7314 , FAN7316 , FAN7547 , KH0803A , LX1691A , LX6503IDW ,MAR3202 , MAX16814B , MAX8722 , MP1006 , MP10073ES , MP1007ES , MP10072E , MP1008 , MP1009 , MP1010 , MP1027EF , MP1038 , MSC1692 , OB3302CP , OB3309 , OB3316QP , OB3328UQP , OB3362RP , OZ5508G - OZ5508GN , OZ960 , OZ964 , OZ9643N , OZ971SN , OZ972GN ,OZ9902CGN , OZ9910GN , OZ9919GN , OZ9925GN , OZ9928SN , OZ99361 , OZ9937GN , OZ9938Q , OZ9939GN , OZ9966SN , OZ9972 - OZ9972ASN , OZ9976 , OZL68GN , OZT1060GN , SAQ8818 , SEM2005 , SEM2006 , SEM2105 , SEM2107 , SP5001Q , SP5005 , SS1091ASN , SS1091SN , SSL100SN, SSL110SN , STR-H3475 , TA9687GN , TL1451 , UBA2070 , UBA2071AT , UBA2074

OZ960
To disable the protection of the SoftStart input (pin 4 of the OZ960), you must force this input (pin 4) to 1.5V - 3.5V, which will control the pulse width of the PWM pulses and adjust the output current in the lamps.
Information was kindly provided by Rottor at the repair forum monitor.net.ru


Another original decision to disable OZ960 protection by pin-10 from AMIT.
Quote:

0Z960 is a
very simple way to unprotect. put the LED with 10 feet to ground. (6-leg ICs)
OZ964
From the forum member monitor.net.ru KRAB
Quote:

Removing the protection for the OZ964:
At pin 4 (SST - Soft-Start Time), at the moment of switching on, you must hold 1.8 - 2V.

From the participant of the forum monitor.net.ru X1-42
Quote:

OZ964 protection is removed in the same way as the OZ960, LED on 10 output.

From the forum participant monitor.net.ru CAIIIA
Quote:

In LCD LG 32LK330-ZB Inverter VIT71884.00 REV: 2.LOGAH (OZ964 + LM339) could not be defeate

Darla.india (VU 3 NDV), [01.12.18 20:49]
d, it works, then no, bu

t it was possible to disable the protection only at the same time for 4 and 10 legs. Separately, the protection was not blocked.

BIT3193
Information provided by the participant KRAB:
Quote:

Removal of protection for BIT3193:
When the protection is activated, the voltage at terminal 5 is about 3, 5 V.
With the voltage at pin 5, from 0.4 to 2.4V and the command "start", the PWM works autonomously, the lamps are not switched off.

! Removal of protection for BIT3193:
(victor_loza monitor.net.ru)
Option - 1
Through the resistor 2 - 3 kom pin 5 to connect to pin 12 of the chip thus keep the "working" potential of about 1.2 V.
Option - 2
LED as a stabilizer connect to pin 5 on the ground in the direct connection, "stabilize" the voltage on pin 5, to 06 - 08 volts

does not work any option ...

I have a second option with LED works. (merkyrio).


TL1451
More information from KRAB:
Quote:

Unlock the TL1451 protection:
- The protection lock in the TL1451 chip (analogous to BA9741) is reduced to a simple action by closing pin 15 to ground.
But if you do this after the protection is triggered (for example by tweezers), nothing happens because the trigger protection is already blocked from the feedback sensors.
- To restore functionality, you must reset the protection trigger by turning the inverter off and on again, or by changing the level on pin 9 of the microcircuit.
In the operating mode of the monitor, the reset of the protection trigger is updated automatically.
FAN7314
From the participant of the forum monitor.net.ru Valentin
Quote:

BN44-00182C with live transformers in the inverter, decided to throw trances on everything known ... 123rd block, the primary trance paralleled,
and on the 1st leg FAN7314 put a zener diode on 4.3v with +5v and a resistor 620 ohms per case.

FAN7311 - FAN7314
From the participant monitor.net.ru ParazeTam0l
Quote:

Controllers FAN7311 - FAN7314
By the method of Valentin, (on this page) - 560 Ohm resistor, from pin 1 to the case.
Zener is not needed, in this inclusion it still does not work.


MP1008
Information provided by the participant ancl:
Quote:

Removing the protection from the MP1008: 10 kΩ from 4 pins MP1008 to the chassis.


OZ9938Q
Information provided by the participant JUDI71:
Quote:

... the protection is removed, 10k parallel to the condender for 3 pins OZ9938.


AT1741
Information provided by the participant asanik:
Quote:

AT1741S - LED with 15 output to ground. I guess you can and resistor.
The LED does not light up.


BD9897
Information provided by a member of fantom555:
Quote:

The BD9897 has 17 pins. ... "hang" with it on the mass of the LED in the direct switch and the driver starts to "hammer" regardless.
BD9897F
The information is provided by the participant status DNA:
Quote:

BD9897F to the 22 pin of SCP chip to hang LED, cathode to ground.
BD9897FS
Information provided by the comporator:
Quote:

The device is a LCD Sharp LC-32A47l, a 6-lamp inverter for BD9897FS. It was necessary to bypass the protection of BD9897FS, in a trance one of the secondarys was shortened - the winding was removed. For a long time I tried to do something on the reverse link, nothing happened. As a result, I put the LED on 17 pins BD9897 and the case on, which immediately disconnected the protection. The device has earned, successfully passed the run and issued.
TA9687GN
The information was provided by gchel:
Quote:

TA9687GN ---- connect 12 terminal TIMER through 47com with the copse (parallel to C818). Checked.
Information provided by the participant serge fetjunin:
Quote:

TA9687GN instead of the resistor is put light-diodes and the adjustable brightness remains.
BD9883
Information provided by AMIT:
Quote:

any LED, 13 leg-SS, BD9883 chips, --- anode, body ---- 7, cathode
or just put 12 feet on the ground is suitable .
Information provided by the participant Captain:
Quote:

just put 12 feet on the ground.
recommendation from sharp.
OZ99361
Information provided by the participant Nlfjk:
Quote:

Disabling protection in the OZ99361

Darla.india (VU 3 NDV), [01.12.18 20:49]
chip.
... by the controll

er set the voltage on pin 1 of the chip within the stable start 1.85 - 1.98V
From the participant monitor.net.ru kebastos
Quote:

I will complement and I on the LG 26LC2RA ..... panel LC260WX2, inverter master slave, assembled the master on OZ99361 ..... can be changed and to 9936, but it's not in it .... the inverter is chopped after turning on after three seconds ...... disabling its protection is invented and there is in the internet: see the photo below ..... (disabling protection in this case is not dangerous because the inverter is chopped due to the paused lamps) .... but! works, it's all right, but in modes like "standard" and on AV1 the inverter starts to twist like a cut dog, while working ....... my rework is a bit different - we hang in the air 1 paws ry, and connect it through a 100k ohm resistor to 5 volts .... in the figure it's clay, going to the 6th leg of the mikro .... well, between 1 foot of the mikro and the ground - the konderkik at 0.15 mikrofad, and everything works fine silently in all modes
OZ9910GN
Information provided by the participant evg4682:
Цитата:

Controller QZ9910 GN protection disconnected: LED with 3 feet of stabilizer. Works with a single lamp, only contrast is adjustable. Monitor Asher al1716.
More options from other forums:

BIT3102A
From the participant monitor.espec.ws zuev-tv

Quote:

For inverters on the BIT3102A, disabling the protection = the setting on terminal 6 of the voltage is 2.5V.


From the participant monitor.net.ru maksatiha
Quote:

Disabling protection on ms BIT3102A. Protection disconnects if the 6 feet are planted on the ground through R = 40kΩ. Verified personally. It was necessary to do this when installing in Samsung N920 instead of MT2-17 REV0.2 block BN44-00082C
OZ9966SN
From the participant monitor.espec.ws zuev-tv
Quote:

The LCD TV inverter on the OZ9966SN is a way to disable the protection.


LX1691A
From the participant monitor.net.ru gosha_gor
Quote:

I want to share the removal of protection from the inverter on the IC of the LX1691A type: the 14th pin of this chip is referred to as the OP-SNS grounded to the chassis. Works OK.
MP1009
From the participant monitor.net.ru Benzopiren
Quote:

Disable MP1009 protection - Short out pin 5 to the chassis.
OZT1060GN
From the member monitor.net.ru bdvrt
Quote:

OZT1060GN - di.diode pin1
QZ9938GN
From the member monitor.net.ru bdvrt
Quote:

QZ9938GN - LED pin3 ... as for bit3193
MP10072E
From the participant monitor.net.ru gosha_gor
Quote:

Removal of protection in the MPI type MP10072E: 3 pin - LED on the housing.
INL837GL
From the participant monitor.net.ru Bеnzоpirеn
Quote:

INL837GL Stabilize the power supply at the output of 12 - 1,7 - 2 V. Connect the stabilizer (LED) from pin 12 to ground, there also supply power from the 5 V source through the resistor 470 - 510 Ohm.


OZ99361
From the participant monitor.net.ru kebastos
Quote:

I will complement and I on the LG 26LC2RA ..... panel LC260WX2, inverter master slave, assembled the master on OZ99361 ..... can be changed and to 9936, but it's not in it .... the inverter is chopped after turning on after three seconds ...... disabling its protection is invented and there is in the internet: see the photo below ..... (disabling protection in this case is not dangerous because the inverter is chopped due to the paused lamps) .... but! works, it's all right, but in modes like "standard" and on AV1 the inverter starts to twist like a cut dog, while working ....... my rework is a bit different - we hang in the air 1 paws ry, and connect it through a 100k ohm resistor to 5 volts .... in the figure it's clay, going to the 6th leg of the mikro .... well, between 1 foot of the mikro and the ground - the konderkik at 0.15 mikrofad, and everything works fine silently in all modes
MP1038

Quote Sergey Gants:

... deprotection with the MP1038 - the 6th driver leg (FT) through 10kΩ on the chassis. (By analogy with MP1008, only there is FT - 4th leg).
MP1038EY
From the participant monitor.net.ru rammer
Quote:

MP1038EY - LED on the 6t

Darla.india (VU 3 NDV), [01.12.18 20:49]
h pin Fault Timing.
BIT3713

From the participant monitor.net.ru asanik
Quote:

BIT3713 - LED with 5 outputs on the ground TIMER. The LED does not light up.


BA9741
From the participant monitor.net.ru asanik
Quote:

BA9741 F 15 pin - SCP connect to ground. This blocks the protection of both driver channels. (LCD CAMERON 1501SP)


SEM2105
From the participant monitor.net.ru ra4llb
Quote:

SEM2105 - for locking, put the LED on 1 pin of the IC.
MAX8722
From the participant monitor.net.ru ANOD07
Quote:

max8722 - to lock, put 4 pins on the ground.
SEM2006
From the participant monitor.net.ru юрий 72
Цитата:

SEM2006 - The protection is removed by the LED from 2 pins per case.
MSC1692
From the participant monitor.net.ru юрий 72
Цитата:

MSC1692 - with 4 pins a 220kΩ resistor per case.
KH0803A
From the participant monitor.net.ru юрий 72
Цитата:

KH0803A - LED or R 390 - 820 kOm with 5 pins per case. (parallel to C125).
SP5005
From the participant monitor.net.ru Altai
Quote:

SP5005 - (sop16 4ccfl) LED with 5 (timer) pin per case. OZ9910 in my case disconnected the protection LED from 10 pin (and not from the 9th)
SP5001Q
From the participant Anatoly Boldorev
Quote:

TV SANSUI LT2202SS.
Microcircuit SP 5001Q. LED from 19 feet to the common wire cathode.
MP1027EF
From the participant monitor.net.ru Rishat-80
Quote:

Another way to disable the protection of the PWM controller MP1027EF. A rare controller, mainly installed on industrial monoblocks by ADVANTECH. PWM controller with 20 pins, it is necessary to connect 16 pins to GND via a red LED.
BD9240
From the participant monitor.net.ru jurez
Quote:

BD9240 You can remove the protection by putting 15 foot (CP) in 10 kOhms on the case. The panel backlight adjustment will not work.
OB3316QP
From the participant monitor.net.ru LGakht-tel
Quote:

OB3316QP to remove the protection can be as follows: putting the LED from 5pms on weight.
BD9884VF
From the participant monitor.net.ru Radiogad
Quote:

bd9884VF
Removal of protection checked on Erisson 26LH01 --- 17 pin IC connected to the voltage divider - cut off the track after the divider that goes to the op-amp - the error amplifier.
OB3328UQP
From the participant monitor.net.ru Radiogad
Quote:

OB3328UQP
To remove the protection, it is enough to install the LED with 3pin IC for weight.
From the participant monitor.net.ru key-s
Quote:

Resistor 10k, with pin 3 per weight. The native condender for this pin is evaporated, in its place-a resistor. Favorite inverter TV3203-ZC02-02 (A)
BI3101
From the participant monitor.net.ru olegno11
Quote:

Disable protection in the BI3101 chip
Pin 16 of the IC is connected to the common wire by a resistor of 220 - 470 Ohm
BD9882F
From the participant monitor.net.ru Коля
Quote:

BD9882F
LED from the 14th output to ground.
BD9766VF
From the participant monitor.net.ru LGakht-tel
Quote:

BD9766VF.
LED from the 20th output to ground.


OB3309
From the participant remont-aud.net AleksandKn
Quote:

According to datasheet OB3309 on 15pin STIME should be + 2V. I put the LED 15pin on the chassis with a voltage of 1.7V. The backlight does not work. In the strapping of the shim, all the resistors are normal, the image parameters are adjusted.
FAN7316
Oleg Nemtsov oleg-nemcv@rambler.ru
Quote:

LED on the 17th output.
BD9211F
From the participant monitor.net.ru HMAO
Quote:

The backlight turned off, installed a 4.7k ohm resistor on the output and body.
BD9261FP
From the participant monitor.net.ru LEX1
Quote:

The protection is blocked by installing the st. diode between 27 (6) terminal m / s and the body.
SAQ8818
From the participant monitor.net.ru idnavi
Quote:

To block the protection, it is enough to solder the 1MΩ resistor from +12 Volts (inverter power supply) to the 7 pin SAO8818. SAQ8818 is set to TL494 with a rotation of 180 degrees.
MP1006
From the participant monitor.net.ru Vladislav_
Quote:

MP1006 remove the protection by setting the resistance 10 Kom with 6 outputs "FT" on the chassis.
SEM2107
From the participant monitor.net.ru rostik-71
Quote:

SEM2107 TV set KTC, inverter

Darla.india (VU 3 NDV), [01.12.18 20:49]
SSI_400_14A01 rev 0.1.
On th

e 21 output of the IC (SDT) solder the LED.
FAN7547
From the participant monitor.net.ru emer6
Quote:

Monitor Viewsonic-VA712B. Bypass protection of the inverter on FAN7547 - we short-circuit the 7th leg of the chip.
OB3302CP
From the participant monitor.net.ru RadioElektronik
Quote:

OB3302CP protection was removed by installing a 2-pin LED to 3 volts.
BD9777
From the participant monitor.net.ru status DNA
Quote:

BD9777 14 pin (SS) - microcircuits through the resistor 10км on weight.
OZL68GN
From the participant monitor.net.ru CAIIIA
Quote:

OZL68GN the protection by the white LED on the output of SST 4pin was removed.
BIT3105
From the participant monitor.net.ru CAIIIA
Quote:

BIT3105 deprotection of the SST (19) terminal with a white three-volt light-emitting diode on the ground. The brightness is good, at the output with this LED is kept 2.3V.
BD9222FV
From the participant monitor.net.ru ANOD07
Quote:

BD9222FV - LED with 13 outputs to ground. LED does not light
DT8211
From the participant monitor.net.ru gchel
Quote:

DT8211 9 foot on the body through a kilo-ohm resistor, for example 47k.
OZ9972
From the participant monitor.net.ru rz6anh
Quote:

OZ9972. Option with 24 pins. Output 20 (prot) through 1 kOhm on the chassis. The output from the circuit did not turn off. (rz6anh)

OZ9972ASN 24-pin chassis, 19 output 10 kOhm to ground (there are 28-pin cases there 23 pin performs this function) (KAP1 monitor.net.ru).
UBA2070
From the participant monitor.net.ru zharinov
Quote:

UBA2070 - the first leg on the mass.
BD9896
From the member monitor.net.ru fantom555
Quote:

BD9896 you hang from the 3rd pin on the mass of the LED in the direct connection and the inverter works regardless of anything.
BD9215AFV
From the participant monitor.net.ru LGakht-tel
Quote:

BD9215AFV put a 10 kΩ resistor with 15 pins of IMS per weight.
ILN816GN
From the participant monitor.net.ru slfl
Quote:

ILN816GN - Disable protection on the BENQ E2420HD. The protection was removed by installing a 10kΩ resistor on the eighth pin, parallel to the capacitor C3.
UBA2074
From the participant monitor.net.ru Iskander
Quote:

UBA2074 for deprotection - 20k ohms per case from pin 6. (6pin - CT - fault timing capacitor).
OZ9919GN
From the participant monitor.net.ru arthur58
Quote:

OZ9919GN 8pin after 10com to the ground.
SEM2005
From the participant monitor.net.ru nem
Quote:

SEM2005 - The protection is removed by the LED from 1 pin to the housing.
MP1007ES
From the participant monitor.net.ru LGakht-tel
Quote:

MP1007ES 4pin per weight.
BD9276EFV
From the participant monitor.net.ru Vlad-1966
Quote:

... removed the protection of the LED by 35 pins (softstart).
BIT3251, BIT3252, BIT3267
From the participant monitor.net.ru RadioElektronik
Quote:

... the protection was removed by closing 5 pins on the ground.
BIT3267 is similar (shamrin monitor.net.ru).
From the participant monitor.net.ru BIG-TV
Quote:

... BIT3267 turned out only with 4 on the ground (ovp), 5 pin is inn, unlike BIT3251.
OZ9643N
From the participant monitor.net.ru ksen
Quotation:

OZ9643n - 1st pin after 20 kΩ to ground.
DDA009
From the participant monitor.net.ru vovan_j
Quote:

DDA009. On pin 18 (VCOMP) apply 3v.

DDA009, in my case, the protection was disconnected by the 6 pin of the IC on the case (plazmoid monitor.net.ru).
OZ5508G - OZ5508GN
From the participant monitor.net.ru expressel
Quote:

OZ5508G / N - 3 pin kr. LED on the body. Backlight adjustment works.
BD9275F
From the participant monitor.net.ru Lupik2
Quote:

BD9275F - 11 pins (CP External capacitor from CP to GND for Timer Latch) 1 kΩ per case (parallel to the condenser). At first it completely closed on the case - the protection disconnected. I tried with a resistor - the protection turned off. Backlight adjustment works. Checked.
OZ972GN
From the participant monitor.net.ru ABDU
Quote:

OZ972GN c 8 output LED per weight. Disconnected on the inverter V370H-L01.
OZ9976
From the participant monitor.net.ru kebastos
Quote:

OZ9976 (similar to OZ9966) - 10 kΩ per case from the

Darla.india (VU 3 NDV), [01.12.18 20:49]
TIMER pin, in this case pin 11

of the chip.
BD9270F
From the participant monitor.net.ru VUSA
Quote:

BD9270F - 13 (cp) a pin 10kΩ resistor per case.
SS1091ASN
From the participant monitor.net.ru sergei1600
Quote:

To remove the protection on the SS1091asn on the 19 output solder the LED (sergei1600).

SS1091 - two types of 24 feet and 28 legs
24 feet ---- 19 through the LED to the body
28 feet --- 23 through the LED to the body
anode - the leg, the cathode - the body (bonatelo).
MP1010
From the participant monitor.net.ru Dimon S
Quote:

MP1010 (MP1010B, MP1010BEF, MP1010BEM) - 17 feet closed on the body. If the connection scheme is 19 + 17, then 19 is separated from 17 and still 17 is hard on the case!
OZ971SN
From the participant bogomol65
Quote:

The OZ971SN can be removed by pulling up 20 feet through 100 kΩ from 3.3 volts from the on-off command. ... 28 feet of the chip is in the CL200WX PHILIPS LCD inverter ... the power supply of the lamp was cut off ... The truncated trance was dropped and the second one, which with him in pair, threw away one pair of lamps. The jumpers connected the error sensors to the working trances. Time did not have enough to look for the best option, saved the supply of 3.3 volts by 20 feet through 100 kOhm.
BIT3102B
From the participant monitor.net.ru scn3
Quote:

Disabling the protection of bit3102b sot-14 5-pin by the mass via a 47 kΩ resistor.
-------------------------------------------------
! ... you need to 4-pin and not to 5-pin! (vadim1234s monitor.net.ru).
! ... 4-pin sst it on the mass through the resistor! (nikolay7816 monitor.net.ru).

OZ9939GN
From the participant monitor.net.ru yura_brt
Quote:

To remove the protection on the OZ9939GN 3pin by the mass through a 100-110kΩ resistor.
UBA2071AT
From the members of monitor.net.ru laurevena, X1-42, Condorviys
Quotes:

POLAR 38LTV4105, inverter on the chip UBA2071AT + two field STP60N06. It is forced to obey by grounding pin 5 of the microcircuit.
PHILIPS chassis TPM4.1e, inverter on chip UBA2071AT + two field 8N60 5 Output to ground did not help. But the LED from the 6 output to the mass has perfectly helped and the telly has taken the other's lamps.
With the Supra STV-LC2615VD, then it turned out.
OB3362RP
From the participant Andrey Kostyunin
Quote:

Remove the OB3362RP protection. 16 pin - a resistor to the mass of 20-24kom. of the value depends on the brightness of the backlight. .
OZ9902CGN
From the participant Andrey Kostyunin
Quote:

disable protection QZ9902CGN - 8 PIN 10kms per weight.
SSL110SN
From the participant monitor.net.ru DimaSet
Quote:

Toshiba 40HL933RK ... protection disabled LED-ohm on the 28th leg (timer) the benefit of the control points on the board are signed.
AP3041M-G1
From the participant monitor.net.ru status DNA
Quote:

To remove the protection, hang the LED on the 12th leg.

BD9397EFV
From the participant monitor.net.ru tolyanich27
Quote:

BD9397EFV is a 32-pin LED.

32 -SS OUT Connecting terminal for soft-start time setting capacitor-foot via LED to housing. (ANDOR1l monitor.net.ru)
! ... I have not done this way ... in a parallel branch where I read about a resistor for 31 feet. I put 1Com parallel to the condender ... the adjustment of the backlight is left ... SONY KDL-32R433B !! (alexey1976 monitor.net.ru).
BD9470EFV
From the participant monitor.net.ru IREN
Quote:

BD9470efv remove the protection by closing the 7 pins of the SS to ground via an LED or a resistor of 470 kΩ.
MAX16814B
From the participant monitor.net.ru san-vai
Quote:

LED driver max16814b. 8, the RSDT pin in this case is closed by a jumper on the VCC 20 pin for de-protection.
At pin 7, increase the resistance, thereby reducing the current through the rulers.
BD9828
From the participant monitor.net.ru meikl
Quote:

BD9828 Disconnected the protection of the LED from the 13 output to ground.
SSL100SN
From the participant monitor.net.ru Untitled
Quote:

SSL100SN The SSL320 0E2A inverter has disabled the protection of 19 pin-22kΩ to the case (Untitled).

SSL100SN The SSL320_0E2A inverter has disabled the pro

Darla.india (VU 3 NDV), [01.12.18 20:49]
tection of 19 legs through 8.2km

s to the ground (arthur58).
MAP3202
From the participant monitor.net.ru Шеф631
Quote:

Remove the protection (MAP-3202) by just 5 pin anode of the LED, 4 pins cathode LED, removed to detect the broken light-emitting diodes in the matrix ...
OZ9937GN
From the participant monitor.net.ru sarmaxim
Quote:

Remove the protection from the PWM OZ9937GN, from 14 pins (Timer) to the housing, put a resistance of 10k. Protection does not work when removing the lamps. Inverter Darfon 4H + V2988.051 / B (In this inverter shunt capacitor C221 this resistance). (Sarmaxim)

OZ9937 disable protection. Connect the 14pin with a 15pin resistor of 470 kΩ (timofey68).
MP10073ES
From the participant monitor.net.ru Вадикк55
Quote:

To remove protection from the MP10073ES, you need to solder a 10kΩ resistor with a 4n. to the ground. For lack of near at hand, this soldered 11 kOhm. Working!
SS1091SN
From the participant monitor.net.ru JUDI71
Quote:

shim ssi091sn did not find the datasheet - the protection is removed 23 pin LED on the mass.
OZ9925GN
From the participant monitor.net.ru Demon
Quote:

OZ9925GN - disabling protection. On the 13th foot solder the LED. Protection is disabled. The first element with 13 legs is the condenser. That's parallel to him and solder. Proven.
LX6503IDW
From the participant monitor.net.ru status DNA
Quote:

Samsung LE46B530P7W BN44-00265B LX6503IDW
To remove the protection, we do an ordinary pull-up with a 12 volt resistor (5.1 ... 6.8com) + LED on the 3-leg chip.
OZ9928SN
From the member monitor.net.ru Alex021
Quote:

OZ9928SN. On SHARP LC52X20RU disconnected the protection by installing two resistors of 200K from 28 and 29 feet per case.
STR-H3475
From the participant monitor.net.ru EWB2009
Quote:

PANASONIC TX-LR32X20 STR-H3475 two-time backlighting and protection protection with error 1 (inverter error). When the trench windings are tampered, a small spread is observed in the resistance of the secondary windings within 10 ohms. The lamps are in order (tested on another inverter). The protection was removed by connecting the LED to 18 pins on the ground