Hello, once again this TV is giving me more problems. One day i turn the tv on to find there is no sound BUT i do have picture. Does this tv have a sound card? I have already replaced the video board(main board?) about a year ago or so, then i had to replace the power supply board a few months ago. no matter if a use an HDMI port or component cable, still no sound. If i use the satellite or DVD player, no sound. I did try to hook it to my PC via the HDMI port and strangely it would either say, no signal or not supported. Then i reboot the PC and for a split second i did see the desktop( though the screen was very fuzzy), then it went black saying no signal. Would it be just easier to replace the video board again?
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Re: Samsung pn51d450a2dxza, picture but no sound
Check for the presence of AC DET voltage on/from the PSU. I worked on a LG Plasma with similar symptom recently and discovered 'No AC DET voltage caused the Audio to MUTE.
Not sure if your SAMSUNG has that Pin Out. -
Re: Samsung pn51d450a2dxza, picture but no sound
Go into the Sound Settings Menu and turn the Internal Speakers on.
Had one exactly same a week ago.TELEFIX
How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
http://www.irf.com/technical-info/appnotes/an-1088.pdf
PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!Comment
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Re: Samsung pn51d450a2dxza, picture but no sound
The jack on the PSU that goes to the Main Bd, There you will find ST-BY 5V, BL-ON, P-ON, etc. One of the pins there may be marked 'AC DET' meaning AC Detect.Comment
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Re: Samsung pn51d450a2dxza, picture but no sound
No 'AC-Det' on Samsung psu that I recall.
Prolly the Class D stereo amp chip faulty, Can you run sound Out of the set via Line out sockets?
--Is sound present there?--If so, prolly the chip....TELEFIX
How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
http://www.irf.com/technical-info/appnotes/an-1088.pdf
PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!Comment
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Re: Samsung pn51d450a2dxza, picture but no sound
Yes possible Class D audio Amp chip faulty. Check is it is getting power perhaps 17Vdc.Comment
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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... -
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...
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