I've got a 40PFL4707 that was dead, so I replaced the power supply that didn't fix it. I got the new one, that did not fix it so I checked the pins on the ribbon cable where it connects into the main. It had voltage on and on the board. So i ordered a main board and installed the damn thing still don't work. it. Does anybody have a schematic for this tv? I need to confirm the voltages going into the main, and from the main to the ir board. Any help would be greatly appreciated!
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Re: Philips 40PFL4704 dead
hi there! is this 40PFL4707/12/37/60/05 ? and chassis number which is written on label on the back of the telly -
Re: Philips 40PFL4704 dead
Hello Arfi!
I have attached a picture of the TVs manufacture label for you to review. Let me know if you need anything else!Last edited by Treydogg77; 03-24-2015, 06:07 PM.Comment
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Re: Philips 40PFL4704 dead
Any good clear pictures of the whole back side of the TV to show all the boards and how they are connected together? That will be a start.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: Philips 40PFL4704 dead
Hello Bud! I will post those shortly, I have to do it via iphone :-(.Comment
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Re: Philips 40PFL4704 dead
Here are a few pictures of the set and it's questionable ribbon cables.Attached FilesComment
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Re: Philips 40PFL4704 dead
Pictures for everyone to review.Attached FilesComment
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Re: Philips 40PFL4704 dead
Anybody know where I can purchase new ribbon cables for this thing?Comment
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Re: Philips 40PFL4704 dead
This looks like 40PFL4707. I am working on repair of this TV for last 4 years now
. Its become my favourite past time hobby. Incremental progress.
If you find source for these ribbon cables, do let me know too.
Here are my suggestions. Look at my thread. I have attached service manual for this TV. You should check following voltages
AL+3.3v
LED+24v
P-ON+21v(12v)
Pin 3 of IC3008, IC3001, IC3003
Also check the voltages on CON3 on LED driver board for LED-1, LED-2, LED-3,LED-4..it should show around 11vComment
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Hi everyone,
Im looking for some advice regarding my Samsung UE55MU8000 TV with main board model BN94-11606C. The TV suddenly stopped turning on and now shows no signs of life at all not even the standby light at the bottom.
Initially, I suspected an issue with the PSU, so I took it to a repair center. They tested it and confirmed that the PSU works perfectly, even on other TVs. Based on that, I started investigating the main board.
I disconnected the main board from the PSU, and the backlight turned on, which seems to confirm the main board is the issue.... -
Hi and thanks in advance for any input you might provide!
I have a Sceptre U550CV-UMRD8POTV83BB 4K LED (this is a dumb tv) that I bought new in August 2021, so It's just completed 3 years.
Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO
Last Sunday I was watching a dvd and fell asleep for about half hour, when I awoke the tv screen was black and couldn't get the dvd menu to show, so I changed the input to antenna and had sound but no picture, turned it off. I then got online and found this great site! ....read many troubleshooting tips and this... -
Hi everyone,
Iām looking for help with a persistent issue on an LG TV model 55NANO77SRA, which uses the main board EBU66792103 (also used in LG UQ80 and NANO75/NANO80 series).
š§© Problem Summary:- The TV keeps scrolling through the menu or selecting items by itself.
- I removed the physical button board (the entire panel with power and volume buttons) and also disconnected the flat cable (CN202) from the main board.
- The remote control is not in use (batteries removed), and the TV still shows the same behavior.
- I
07-28-2025, 08:34 AM -
hello everyone,
I don't normally do tv repairs but this is a case with my personal TV which got fried together with many other electronics in my house after a thunderstorm.
The TV is a Philips 65PUS8518/12 which had no power. I measured and concluded that the main board was probably fried through ethernet or hdmi. I found a board with same number 715GD328-M0F-B00-005Y (I had G) but from a 55PUS8518. The TV starts but the image is doubled, distorted. I need to set the panel code which is 016 according to the sticker on the back but I can not seem to do it.
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Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"...
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