05-04-2016, 07:14 PM
Looking at the schematic I pointed you to, it is only for the radio portion so that may not be enough to help you out. I 'think' you might also need the MC-9 changer schematic. You can get that from SAMS but its not free: https://www.samswebsite.com/en/photofact.../id/115593
The free online radio schematic is nice but difficult to read so you should also probably buy a clear schematic. One source is http://www.antiqueradioschematics.org/philco.htm
Some things to think about before you poke around in there. The power supply used two selenium rectifiers which may become faulty if they are not already. If the radio has not been serviced in the last 10 years or so its likely the electrolytic capacitors will need replacing as well ( C103 A thru D ) and all the paper capacitors should be replaced as well. If the unit will be used with any regularity these components should all be replaced.
***!!!!Also note that the chassis does not have a power transformer on it so you are connecting the chassis directly to the 120V ac power. You should use an isolation transformer to work on the unit if it is powered up. Its not clear to me how the phonograph is powered so it is possible you have a disconnect somewhere so that no power is going to the motor or you may have a mechanical problem with the turntable and tone arm.
If you decide to try to fix it, post pics and ask questions and I'm sure guys who have worked on radio/phonos will chime in.
The free online radio schematic is nice but difficult to read so you should also probably buy a clear schematic. One source is http://www.antiqueradioschematics.org/philco.htm
Some things to think about before you poke around in there. The power supply used two selenium rectifiers which may become faulty if they are not already. If the radio has not been serviced in the last 10 years or so its likely the electrolytic capacitors will need replacing as well ( C103 A thru D ) and all the paper capacitors should be replaced as well. If the unit will be used with any regularity these components should all be replaced.
***!!!!Also note that the chassis does not have a power transformer on it so you are connecting the chassis directly to the 120V ac power. You should use an isolation transformer to work on the unit if it is powered up. Its not clear to me how the phonograph is powered so it is possible you have a disconnect somewhere so that no power is going to the motor or you may have a mechanical problem with the turntable and tone arm.
If you decide to try to fix it, post pics and ask questions and I'm sure guys who have worked on radio/phonos will chime in.
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