Does anyone have the service manual for UN32EH4003V? The TV turns on, but there's no backlight. I already checked the backlight and all the LEDs are working.
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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=24809 -
Re: Un32eh4003v
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Does not turn on, lights 3 of the 4 LEDs and turns off and stays like this, presses the power and repeats.
I saw that the room LED lights up only when the screen is connected, so quiet.
We have all the power supplies, even processor, 1.8V
One thing I found strange, it has a very low resistance in the Vcore is giving 1 Ohm , work with notes and such, I know that this is normal in some processors but with this resistance only take video card so found it strange.
I suspect that there may be some leak in the processor.
Anyway, when I press the power, it... -
Hi guys
I'm working on similar Samsung TV UN60J6200AF.
When I plug in power cord, the red light lights up, and flashes, then turns off.
I measured on the power supply board, and even without pressing the power on zbutton in getting on CNM803 (which goes from Power supply to Main board):
UD = 2.3V
PMW_BLU4 = 3.3V
PS_ON = 4.4V
A13V = 12.75V
I looked at the manual and all the voltages are correct.
When I unplug the main board from the power supply, LED lights are supposed to come on. However, non do come on.
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Hi there !
I'm having an issue for several weeks with my quite old K70 LUX RGB keyboard. I haven't used it for few months, and once I setup up again my desktop computer, I got several dead LEDs on that keyboard. I tried the Corsair troubleshooting thing (disabling options in iCUE, ...) but nothing changed so I conclude that for some reason some LEDs went in retirement...😅
Decision taken to change these LEDs as I have access to desoldering iron and binocular magnifier, I wrote a ticket to tech support, hopping to obtain the LEDs reference and... They refused to tell me 🙄...10-08-2024, 11:58 AM -
Hi!
I have a Samsung UE65C8790 that has suddenly gaven up.
As soon as I try to turn on the TV via the remote control, the TV flashes 4x and then the relay clicks again and the TV flashes 4x again (nearly every 8 seconds). This repeats endlessly until I unplug it. The screen stays black throughout (no backlight either).
First I tested the backlight LEDs = working
According to the service manual (page 92 or 4-32) PIN 16 and 18 should be bridged at the connector CNM801 to test the function of the power supply. I have done this. = Backlight turns on. The power... -
Can somebody please help me to find the service manual for a Samsung BN44-00522A power supply? It's from a Samsung UE40ES7000 TV.
Was able to find BN44-00522B, but not BN44-00522A. Unfortunately they are different.
Symptoms are that the relay switches every few seconds. Also with the backlight disconnected. No voltages are coming up, except the 5V standby.
With the main board disconnected the backlight should work, but it doesn't. Checked with a scope, but no voltage is being applied so it's certainly not caused by the backlight.
Currently I...
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