SONY STR 434S FM/Am Receiver Amplifier
 

I have this set but does not have the service handbook . Does anyone
have .

Can anyone tell me the IC nos. ( Hitachi or equivalents) of IC used at
tone controls. For reference there are 7 holes with a gap between 1st
and 2nd hole.
You may also suggest me alternative IC presently available in market.

My mechenic has lost the IC without noting the nos.

Please treat this as SOS.

Regards