Did you check TR172 ?
BTW Welcome to AK.orenshem
Best way is to put them on a ESR meter. I'm going to have to concur with Rob's statement. Replacement is not always absolutely necessary. But .....
There are a number of fusible resistors within.Might want to check them all. I've found a surprising amount of " out of tolerance" fusible resistors.
I'd still reflow them with a little new solder, even if they look OK.
How did you test that ? Did you put a multimeter on them and measure there resistance to chassis ground ?
Reflow your solder connections on the base and treble controls.Center pins are all "E" grounds.
There are 4 audio cables Red,brown white and orange. Each of these cables has a soldered connection marked "E". "E" is a ground connection.
Please refer to the transistors as TR xxx example TR157 please.
Gives your peak demand a little more headroom.
Making extra loud music...ie making increased power available to the power amplifier output transistors.
Thats great news..:thumbsup:
It switches in H+ and H- when needed.(M-80/85) In your case its HB+ and HB-....
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