jerryspaghetti
Active member
Picked up a really clean Panasonic 21 inch CRT tv last week.
There was no sound so opened it up and gave it a good clean inside. Really dusty but now clean and all looks good on visual inspection.
I unplugged the speaker and ran it through a spare I had to see if it was just blown but got nothing until I noticed a crackling which got gradually louder and then realised it was the audio but heavily distorted. I plugged the original speaker back in and got the same thing but after a minute the audio was clearing up until it eventually was outputting clean audio.
So the problem is that it has sound but needs about 5-10 mins from cold for the audio to work.
There’s also a little narrowing and letterboxing on the image.
I’m guessing this could be just old caps that are on the way out?
I’ll probably just do a full cap replacement but anyone else had similar issues with the audio as it’s not something I’ve seen before.
Pics just because!
There was no sound so opened it up and gave it a good clean inside. Really dusty but now clean and all looks good on visual inspection.
I unplugged the speaker and ran it through a spare I had to see if it was just blown but got nothing until I noticed a crackling which got gradually louder and then realised it was the audio but heavily distorted. I plugged the original speaker back in and got the same thing but after a minute the audio was clearing up until it eventually was outputting clean audio.
So the problem is that it has sound but needs about 5-10 mins from cold for the audio to work.
There’s also a little narrowing and letterboxing on the image.
I’m guessing this could be just old caps that are on the way out?
I’ll probably just do a full cap replacement but anyone else had similar issues with the audio as it’s not something I’ve seen before.
Pics just because!
