Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
It doesn't seem to be a common fault, but I highly suspect the fact that I bought a bad board. Maybe next time.
novak2
Member
Last Activity: 10-16-2020, 11:09 PM
Joined: 07-05-2020
Location: Paris
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
I think so. Glad that it was cheap, but I will get a partial refund for that.
And buy another one...Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
Just to inform you.
I did the self-check, and AVSW1 and AVSW2 failed both.Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
Hello there.
I received my H board, and guess what... NO SOUND AND NO AV ! There is a serious problem here, because I don't know where the problem is !
HELP PLEASE !Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
So, here again for delivering some news.
I received the DG board, and what a surprise ! It didn't solve the sound output and analog video input, but, I have a slightly better picture over HDMI, AND the original problem is now completely gone !
Now waiting for the H board...Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
So, since I don't have any analog video, I digged into the service manual. And I have some theories about both audio issue and analog video issue, that will lead into my initial one (which has been fixed by some magic trick lol)
- For the audio, I highly suspect the H board, expecially the MSP (multi signal processor). As I said, I don't have ANY audio on ANY output (even headphones), and it was working before. Maybe I screwed that with the hot plug in when I tested some things. Totally...Last edited by novak2; 09-29-2020, 06:37 PM.Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
lil bump and lil news.
Since I need to wait for the part to come, I tested different thing. And guess what ? The board TNPA3759 doesn't work ! Or at least SCART plugs seems to be dead, except that when I plug an RGB cable (not a composite cable over scart), and turn on the device, it recognizes the RGB signal, but there is nothing (except some interferences noise, but very very little, and my cables aren't good so I know that it might be that), but still, no picture ! and no sound still of course....Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
I found this : [url]https://en.ppt-online.org/323141[/url]
It might be useful.Re: Panasonic th-42px60en plasma TV ...ght be useful.Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
I found this : [url]https://en.ppt-online.org/323141[/url]
It might be useful.Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
So, the board concerned is TNPA3756. I just bought another one, if I can have my sound back by replacing the DG board. If you have any advices concerning the current board, and the probably overheating audio chip, I'll be glad to test them.
Also, my TV seems to boot normally, without any kind of repeating clicking noise. So maybe, it was the audio chip that was overheating (or just shorted), and to protect itself, the TV shuts off automatically. Now that the chip is probably fried (at...Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
So, after some heating tests, ot turns out that the ADV7499B runs VERY HOT when I use HDMI source. The two other chips runs slightly warm but it looks okay. Also, the TV booted first time without the help of hot pluging. Also, there is some "THERMAL PAD" written on the board, but I didn't find any....Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
I don't have an ESR meter, I just have a multimeter that can measure capacitors.Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
So, let me recap this.
The TV is a Panasonic TH-42PX60EN plasma. When the power cord is plugged and the power button pressed, the TV clicks, attept to turn on, and then shuts off, then it retries again and again. After some fast analysis on the power board, there is NO bulging cap visible. This is the same for the other boards, no bulging caps apparently. When I disconnect the power cable of the AV boards (where there are HDMI in, SCART in etc...), the TV tries to come on, but it last...Last edited by novak2; 09-27-2020, 09:11 AM.Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
Here some pics...Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
So, more news.
When I disconnect the AV/RF board, turn on the TV, and hot plug it in, the TV works. But now, I have no sound, speaker worked fine berore.Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
Ok some news here. It seems to be the video board, because when I unplug it, the TV stays eletrically on (nothing on screen, but I think it's normal since I removed video and RF board)Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
Ok, I tested all the caps, they are all good. What could it be ?Leave a comment:
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Re: Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
There's no bulged caps, but there were some, after testing them, that were faulty. I replaced them but the problem is still there.
I have 2 relays on the power board, but it looks like there's only one working at start up. Any help ?Leave a comment:
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Panasonic th-42px60en plasma TV takes time to turn on and make clicking noises
Hello there,
I recently bought a Panasonic th-42px60en plasma TV second hand. The problem is :
The TV takes time to turn on from cold (being unplugged from the night for example), it tries to turn on with the clicking sound, then shuts off, then retries and so on. The TV is still working, just it takes time to boot.
From what I've read it seems to be bad capacitors on the power board, but I just want to see if anyone had the same problem with this TV.
Thanks in advance. -
Re: Vestel 11AK49 board : unknown ports
This website provides the manual but it is not free download.
And I didn't find yet a free alternative... That's why I asked on this forum.Leave a comment:
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Re: Vestel 11AK49 board : unknown ports
Yes, but I only found your link and it is not free :/Leave a comment:
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