Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

Meanwhile, before replacing the OP AMP, wanted to be sure that I can recover at least the power and all 4ch audio signals on this audio head unit.
So, repaired the damaged tracks/pads, replaced dead diode, etc and installed new caps.







I must remove almost all of the small caps again before replacing the OP AMP so kind of waste of time but
I only have one OP AMP left so don’t want wasting it if the circuit board has other issues.











Quick bench check and fortunately, power is back and all 4ch generated good sound although the rear side had bit extra noise.
Hope it can be removed after replacing the OP AMP.




Time to install camshafts although I think I must spend some time for hedge trimming today…..



Kaz