Re: Haier LE55B1381 LED
Possibly that chip is bad or the panel killed that chip so you'd be taking a risk in replacing t-con.
Possibly that chip is bad or the panel killed that chip so you'd be taking a risk in replacing t-con.
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Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Haier LE55B1381 LED
You can see the burnt mark from the pics.Attached FilesComment
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Re: Haier LE55B1381 LED
Ok, let me take a chance and replaced the tcon...thanks for your help Tom, will keep you posted.Comment
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Re: Haier LE55B1381 LED
Check voltages before replacing t-con board with ribbons out. That way you can know. Also, you can try checking panel for water damage.
I would be upset to see another bad LCD panel this week, it would have to be the forth, I think.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Haier LE55B1381 LED
OK, I will recheck the voltage, is there supposed to have voltage reading on all the test points A to G?Comment
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Re: Haier LE55B1381 LED
Expected readings:-
A = 15-16V (AVDD for Panel Source Driver)
B = 15-16V (HAVDD for Panel Source Driver)
C = 20-30V (VGH/VONE for Panel Gate Driver)
D = 1.2V±0.1V (TCON IC Core Voltage)
E = 3.3V±0.3V (TCON IC / Panel Source Driver IO)
F = 1.8V±0.1V (TCON IC)
G = 11V±0.5V (Panel)Last edited by tom66; 01-28-2014, 04:37 PM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Haier LE55B1381 LED
Great...Thanks for the info. Yes, was getting 0 reading on 80% percent of the test points. Will order a tcon board and see if that fix the issue. ThxComment
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Re: Haier LE55B1381 LED
Tcon board came in yesterday, I replaced and that fix the problem, looks like the bad IC chip on the old board was casing the main issue. Thanks everyone for their help.Comment
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Re: Haier LE55B1381 LED
Glad to hear, so not a bad panel...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Haier LE55B1381 LED
Yes sir...good panel. I was taking my chance with the tcon board and that fix the issue. Thanks for all your help!Comment
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Re: Haier LE55B1381 LED
This is the thread that brought me here . . . I assumed this was the amplifier board since the speakers plug into it . . . I'll create my own thread.Comment
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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Haier LE55B1381 LED
The board in post 1 is the FRC board, nothing to do with audio,
There is no speaker connector.
J6 POWER IN
J4 DEBUG
J8 3D CONTROLLER
J1 SD 7 CLK.
The other 3 big connectors are for LVDS IN and LVDS OUT.
The other pictures are T-CON board.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic... -
All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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Hey all, want to poke the hive mind here for a technology I must be missing something critical about I can't discern from looking at spec sheets alone.
I have an ATGames Legends Pinball machine, the playfield is a 32" LCD Display. I'm trying to attach an LCD controller to it for direct PC access, as others have been successful.
The LCD is a SPLENDID CD320B01A-350 (I think it's a custom panel for ATGames as google turns up nothing), which is mated to a HV320FHB-N02 (47-6021088) T-CON board (this is probably the important component anyhow)
The LCD...08-31-2021, 09:42 AM -
Hi There,
This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.
After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.
More Details
TV Model - LG OLED77G1PUA
Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt...
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