Panasonic TX-24A1UN CRT Sound and Input problem.

[hugocarmo]

Hi.

I´ve been given an old CRT from Panasonic, it´s almost new, it was storaged and almost not used since bought.
It is imaculate inside, almost no dust or debris inside.
The picture is good, but I have no left sound channel, I tried all the inputs, outputs, even on headphone jack. In AV2 I hear sound from right channel but no image, on tv tuner only right sound channel, the same for AV1.
So I started to look for a service manual, I found one, and started from the beginning.
Most of the times the caps are the problem so I orderer all the caps for all boards, wich I replaced, one by one, not all because I misunderstood some of them and ordered polarized when they were non polarized, of course those I didn´t replaced, but I can say that I have 70% of all boards, with new capacitors, all almost nichicon.
Well, the problems remains, no left sound channel, no image in AV2, only on AV1...
Some of You have any experience with this model? It´s a Alpha 2 Chassis, I will upload some pictures and the service manual.

Thank You all in advance,

Hugo from Portugal!!

[CapLeaker]

I would start to poke around that AV switching IC. There are series capacitors and of course that IC itself.

[KYBOSH]

Impressive undertaking.
Good luck and Im following along for the ride.