CD 104 2nd hand  neat defective CD 104 full of surprises

Bought a 2nd hand  neat defective CD 104 full of surprises

 

Audio Board

OK…?

NOS modification

OPA 2604AP

Filtercaps TDA1540

 

 

Reed-relais bypasses

 

 

Cinch chassis

 

-24 volt regulator have been moved to some extra heatsink

2 diodes haven been replaced

 

 

After some refurbishment , we have a working player

Audio Board , removed NOS modification and placed SAA7030 back , so

• no more 16 to 14 bits  truncation
• less Quantization Errors
• less noise
• less distortion

Servoboard

Isolated chassis cinch

Replaced the opa2604 with a original 5532 😉