Re: Samsung PS58C7000YFXXY - Sound but no picture
I have highlighted the probe point here.
I have highlighted the probe point here.
Attached Files
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Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Samsung PS58C7000YFXXY - Sound but no picture
OK - I hooked up the CRO as indicated and this is the result...
50v/div @ I think .5ms/div
You can see the reading jump to about 15v when the TV is turned on, then a small burst of activity.
http://youtu.be/WIb9l8gVRuYComment
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Re: Samsung PS58C7000YFXXY - Sound but no picture
Both waveforms look good. It's hard to see if there's anything obviously wrong because the pulse is so brief, so it could be a case of the control board shutting the set down.
Is there any way you could borrow a digital scope so you can capture the waveform and look at it more closely?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: Samsung PS58C7000YFXXY - Sound but no picture
I'll see what I can do about a digital scope although it might take a week or so. Stay tuned
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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... -
Hi all
I was just given a Samsung TV with the issue. I read various threads and videos and attempted the ribbon tape method to gain an image, but no luck.
Symptom:
No picture no sound.
When I plug in the power cord, Backlight LED turns on for a half second and then turns off. The red LED next to the power button located center bottom flashes 2 or 3 times. When the power button is pressed after, it does the same thing.
No sound at all.
What I tried:
1. I tried unplugging the left or right ribbon... -
Hi,
I got Samsung 55 inch QLED QE55Q67RAT where there is no sound at all and when using youtube for example picture is not clear and noisy.
I have swapped Burr-brown 88002A chip on the mainboard but didn't help, different set of speakers didn't help either
Mainboard is based on pcb BN41-02695A BN94-14007B
I will appreciate any help
Many thanks
Marek...
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