Along with replacing the electrolytic and tantalum capacitors on the main board I also replaced the RPM selection relay plus the two RPM adjustment trimmers.
This photo shows two components on the main controller board that I will possibly have to return to and modify. They are for the record detection circuit. Once I am at the point of measuring all of the Beogram 4002 photo sensors I will see if these two components will need changing.
On the output board is another relay to be replaced. It is for the phono muting. Along with the relay there is one electrolytic capacitor that was replaced and I added a grounding switch to provide the option to connect or disconnect the Beogram 4002 signal ground with system ground. That option allows the owner to deal with any hum issues.
Here are the two boards recapped...
Main Controller Board before
Main Controller Board after
Output Board before
Output Board after
Here is a photo of both boards completed
Now on to the tangential arm assembly components.
This comment has been removed by a blog administrator.
ReplyDelete