hifi engine

Kenwood 3020

Hi everyone.
I'm having a little trouble with a Kenwood 3020. I can only find the schematics for a 3020SE which is a little different. Any help would be appreciated.
Problem with the amp is that there is no output and the protection relay doesn't switch when first turned on. Forcing a ground on pin 6 of upc1237HA energises the relay but still no output.
Cheers
George



Re: Kenwood 3020

Kenwood has very few models that start with a number. 3020 is not listed here.

Re: Kenwood 3020

Sorry, I should have said Kenwood KA3020.

Re: Kenwood 3020

When the relay closes, do you hear a thump or pop from the speakers? If so, there is DC on the outputs, which would indicate that one or both of the output modules are bad.