Re: Panasonic TC-P50S2 Snowy Picture
Not certain on which that part is but it looks like the VSET or INIT-F generation which could cause this fault.
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Re: Panasonic TC-P50S2 Snowy Picture
I can get the problem to occur and clear by heating or cooling this section of the SC board.Attached FilesLeave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
didn't think about the air to cool it back off. I was worried about heating up with the hair dryer causing it to clear then having to wait several hours to cool off. I will get a can of air this afternoon and report my findings.
Thanks to everyone for the help again.Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
Take a hair dryer and turn on TV when it's cold,blow hot air onto Aboard and see if it clears up faster.
Also,you can do reverse,a can of air(to clean inside of pc etc) held upside down,will spray its freon out and works as a freezing aid.
That way you can warm up a board,till its a clear pic,then use the freezing spray targeted at certain "suspected" areas and see if it goes back to bad picture..
Works great for these kinda problems to pin point which area/component reacts to temp differences....Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
I don't see anything obviously wrong. Is there a starting point that I should begin with?Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
Should I have the power on at this point. I did not power anything after removing the backLeave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
SD board, and C1, C2, C3 boards.Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
From the left
P board, SS board, A board, SC board (with SU+SD boards below), SU board (with SC board above)Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
Here are pictures of the board's inside the housing. I do not know what each one is calledLeave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
Yeah that's not an SS board fault in my opinion; if anything SC or missing drive waveform due to A board fault.Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
That's one of the most original Panasonic failures I've seen here. looking at the first shot, I'm thinking A board then at the last I'm thinking SC/SD/SU and then after it warms up you say perfect which would make me suspicious of the A again.
Maybe next time try warming the A board up and see if it goes away quicker.
This will interesting to follow.Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
This is of the fault. I will send pics of the board's this afternoon. It only does this for about five minutes then clears until the next time it is turned on after being off for a few hours.Attached FilesLeave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
A picture of the fault and of the circuit boards inside of the TV would be useful. In a Panasonic, the SS board is on the right when looking from the back of the set.Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
I can take and post a pic in the morning when it has been off for a few hours.
I do not know where to find any of the things you mentioned in the tv but have a DMM and am willing to follow any instructions for troubleshooting and repair.
Thank you for your quick response. I will post pictures ASAP.Leave a comment:
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Re: Panasonic TC-P50S2 Snowy Picture
My guess would be a problem with the SS board perhaps with the Ve bias circuit or Ve voltage, fault of which can cause purple tint.Leave a comment:
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Panasonic TC-P50S2 Snowy Picture
Hi all, and thanks in advance for the help.
I have a Panasonic TC-P50S2 50" Plasma. When I first turn on the TV the picture is very snowy and Sparkly, it seems to have slight lilac color image retention and looks as if contrast is set to extreme levels. After about 5 minutes it clears completely and has a beautiful picture with no issues.
I can not post pictures at this time as the screen is clear now. this only seems to happen when the tv has been off a few hours.
Does anyone have any clue as to what might be going on?
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Hello!
I recently got an old VHS player from Panasonic and just for fun I want to try to repair this device. It is an AG-1000B portable VHS player from 1990 and it has a problem with picture quality in playback mode.
Picture in playback mode is very noisy and often loses sync but the still images are nearly perfect.
I want to know, is this something that could be solved by recapping or is the video head likely gone?
Also, what mechanism is this?
Any feedback is appreciated!...05-06-2024, 07:16 AM -
Hi all
While I have quite a decent background in electrical & electronic troubleshooting & repairs, this is my first time stripping down an LCD TV for repair.... I have inherited a 3yr old Panasonic LCD which has a picture, but it is quite dark (too dark to be watchable - but still quite easy to see; I didnt need a torch to see it).
I started by checking and trying to adjust all of the picture and backlighting levels, but that made little to no difference. I also did a factory reset.
From there I envisaged that the backlighting wasn't working, however... -
Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.
The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.
Original T-con:
Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.
First replacement T-con:
I thought it might be t-con and ordered new t-con from china(supposedly tested)... -
This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.
Problem
TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode... -
Hi everyone,
I've got this Panasonic TV here with the following symptoms:
* Standby Light is solid RED
* Turning on using the Button on the TV (long press) would change LED to blinking GREEN
* After a couple of seconds, LED is solid GREEN and without picture or sound.
I've tried a couple of things before tearing it apart:
* Resetting using various combinations of powerbutton and volume buttons pressing down while booting.
* Activating Self Check according to service manual using IR Blaster (we have no remote unfortunately)...
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