Re: Samsung UN55J6200AFXZA Sound but no Picture
Is there voltage across these capacitors?
Is there voltage across these capacitors?
Attached Files
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Re: Samsung UN55J6200AFXZA Sound but no Picture
And what is the voltage on this capacitor (in standby mode and in operating mode)?Attached FilesComment
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Re: Samsung UN55J6200AFXZA Sound but no Picture
C1 = 200
C2 = 300
Black capacitor in standby = 220
Black capacitor operating = 390Comment
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Re: Samsung UN55J6200AFXZA Sound but no Picture
Strange, maybe 1 pin is not used, check it like this.Attached FilesComment
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Re: Samsung UN55J6200AFXZA Sound but no Picture
Nothing at all.Comment
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Re: Samsung UN55J6200AFXZA Sound but no Picture
And here.Attached FilesComment
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Re: Samsung UN55J6200AFXZA Sound but no Picture
So, with the results of my last voltage reading, is it safe to assume I at least have an issue with the power board in that it is not allowing voltage to the backlights? I believe what your testing has been is to diagnose the board at a specific component level? I found a new board for a good price so I am not opposed to just replacing the board itself.Comment
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Re: Samsung UN55J6200AFXZA Sound but no Picture
don't buy the board, before test in diode mode every combination of pins of the big transistor in last photoComment
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Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered... -
I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
I ordered a supposedly ‘new' Tcon board this time, and... -
Hello everyone,
Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
Anyway I still fully expect that there has been something seriously damaged... -
Hello all,
This is my first post, but long term lurker on the form learning as much as possible about these TV's. I was given this TV as due to a power outage of constant On/off of power to TV. The TV originally would just click on and off (Typical Reboot Cycle). I opened the back of the TV, and troubleshooted by taking the 96 pin LVDS off one at a time to see if I had a picture on either side. I finally fixed the reboot cycle by finding the error on the left side of the screen off connector CN 1301, and the TV would stay on. Further troubleshooting led me to the driver boards where... -
Hello all ~
I’m working on this Samsung 60” LED and purchased a new main board a couple of days ago that did not fix the 5 blink issue. The original main board’s HDMI ports (all 4 of them) failed to work and no amount of reflow remedied that.
This 5 red light blink code on the front panel LED is followed (about 15-20 seconds afterward) by an automatic reboot, and results in 5 more red light blinks. Then the entire cycle repeats itself indefinitely.
No picture. No sound.
I tested all the voltages coming out of the power supply...
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