Re: LG 50PA5500 Plasma - No picture then no sound
With the TV on, the fuse shows 008. Does that mean this is my problem?
With the TV on, the fuse shows 008. Does that mean this is my problem?
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Re: LG 50PA5500 Plasma - No picture then no sound
You shouldn't test fuses with power on, always unplug and wait for set to discharge.
I meant voltage tests are to be made with power on.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: LG 50PA5500 Plasma - No picture then no sound
Isnt this just a PS problem? I mean , first the screen goes black and later on the sound is gone. Is it not the PS losing its voltage to the other boards? Just trying to think with you guys...
I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!
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Re: LG 50PA5500 Plasma - No picture then no sound
Don't know yet. The power supply may not be getting the turn on signal from the main board. That's why we have to go thru a series of tests to determine what's going on.Did I leave the soldering iron on?Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
Not necessarily... I've had an LCD like that. Standard story, "customer says" TV lost picture then a day later lost sound. Picture was inverter fault... sound was them muting it accidentally when the picture was out.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: LG 50PA5500 Plasma - No picture then no sound
Thanks for being patient with me. Obviously, I'm clueless when it comes to this sort of problem.
If the red light in front left hand corner of the TV is on, does that mean the TV is on? At first I thought it did. This TV has never worked since it was given to me, so I don't know for sure and I don't want to give the wrong information.Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
Dont worry , i was also new ( still are ) and thanks to these guys i learned alot!
I think the tv is in standby mode and when you try to turn it on it detects a problem and it shuts off
Its the same problem why it shut off in the first place.I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
I have this TV here at my shop I'll look and see what the red light means give me a minuteDid I leave the soldering iron on?Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
Anyone have any idea what the red light means?Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
The 50 inch LG i just repaired on mine red means standbyComment
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Re: LG 50PA5500 Plasma - No picture then no sound
Can you check and see if those go up to about 200V and 55V each when first powered up then drop down, or if they are always that low.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: LG 50PA5500 Plasma - No picture then no sound
When turning the power on
Vs goes from 002 to 014
Va goes from 001 to 008Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
They are always low, so does that mean I have a buy power supply?Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
This is sounding like the same issue I am having with an LG 50pa4500...what's the psu part #?Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
Part number is EAY62609701Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
Sounds like your power board is bad. Are all fuses good on the board?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: LG 50PA5500 Plasma - No picture then no sound
Uh- huh. Check out the thread for the lgpa504500 started by brentsky. That's what I'm working on. Very similar set, same psu... You have gone down a slightly different path in the troubleshooting but...
I haven't done any extensive testing yet, hoping for the 'quick fix' based on the information from that thread.Comment
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Re: LG 50PA5500 Plasma - No picture then no sound
This thread:
https://www.badcaps.net/forum/showth...t=38197&page=2Please 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: LG 50PA5500 Plasma - No picture then no sound
I have had 50pa4500 (same power supply) with no vs voltage. I replaced the power supply, but it looks like shopjimmy has a repair kit now for this board as well. If the tv turns on, and doesn't shut back off right away? Maybe this repair kit can fix the no vs issue. I've had probably 5 of these come through with bad upper buffer board from a shorted panel ribbon, but all of those still had proper vs and va voltages.Comment
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Picked up a bahemoth plasma TV not too long ago and just now getting around to looking at it.
No picture but you hear the TV static (white noise) playing loud and clear.
The back was already taken off (and no screws were provided) as the previous owner had already taken a look.
But it seems they didn't get too far and just left it.
When I first took a look I was amazed at how pristine the inside looked.
Its as if the TV had been in a time capsule.
Caps looked like they were just pulled off the self.
Copper coils had no sign of corrosion on... -
Sorry if this is too repetitive, or in the wrong place.
I'm new, and having much the same problem. My LG50PA5500 TV has been working flawlessly since new. The other day, while in the midst of watching a broadcast DTV channel, the entire screen suddenly and silently went dark (no snaps, crackles or pops); sound, channel selection and inputs all work OK.
I have checked connections and voltages from: stdby, pwr supply board fuses, psb output voltages to Zsus board and its fuse, output voltages from Zsus to Ysus and its fuse. All precisely normal!! I've also checked voltages to the...06-19-2021, 06:36 PM -
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...
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