Need help fixing Technics su-v660 ( SVI3205 ic seems fine )

[xXBrunoXx]

Hi !, I need some help fixing a Technics SU-V660 amp, ( it uses the SVI3205 ic that I read I can't get anymore to replace it ).
Amplifier turns on but no output , the speaker relay does not turn on.

• The switches for A / B output work
• No short circuit on the ic outputs
• No short between the outputs and the Voltage rails

So I doubt the transistors in the ic are burnt.
Might be a problem with the protection circuit ? The SVI3205 ic does that ? , turns on / off the speaker relay.
Any ideeas what to do ?.
Relay measures fine, maybe the transistor and resistors around it needs to be checked.
Thank you, Bruno.


Service manual here:

 

[xXBrunoXx]

2v and 3v on the ic speaker output , before the relay . Closer to 0 I think it should be, maybe this is why the ic won't turn on the relay on the output.
Might this be from the class A amp ?.