Members,
I have a working 7070 which has developed a dead channel output problem when the unit is turned on. The problem goes away when you turn up the volume. I assume this will only get worse. Overall it seems to be in good shape.
I also own a 8080db in very good shape on the outside but has smoked parts on the driver and power supply boards. It seems to to make more sense to rebuild the unit replacing all electrolytic caps, opamp, and aging transisitors, than to fix the problem.
1) When rebuilding these units should I have the CERAMIC CAPS replaced with a quality film cap as well???
2) Would ceramic cap replacement be a good idea in the tuner section???
3) Should the rectifiers be replace with modern types???
3) Are they any other upgrades to consider when I have this work priced out by a good tech???
I have a working 7070 which has developed a dead channel output problem when the unit is turned on. The problem goes away when you turn up the volume. I assume this will only get worse. Overall it seems to be in good shape.
I also own a 8080db in very good shape on the outside but has smoked parts on the driver and power supply boards. It seems to to make more sense to rebuild the unit replacing all electrolytic caps, opamp, and aging transisitors, than to fix the problem.
1) When rebuilding these units should I have the CERAMIC CAPS replaced with a quality film cap as well???
2) Would ceramic cap replacement be a good idea in the tuner section???
3) Should the rectifiers be replace with modern types???
3) Are they any other upgrades to consider when I have this work priced out by a good tech???