Hello community, I need your help to have a photo of the correct wiring of the amplifier board for the JVC RC-838L. My unit shows many wires, pirate bridges.
Thanks for your help.
Thanks for your help.
Correct wiring of the amplifier board for the JVC RC-838L
- Thread starter Funkateer38
- Start date
- Status
I agree with Hopey, I have a Nordmende RK4186, it's basically the same device and it's full of wires that go everywhere...
My problems to solve are numerous:
Amplification does not work
The MODE SWITCH switch is out of order, the 4 positions are not present. Mine is tinkered with shunts. I will replace it with another from a JVC RC-M70
The 3 BIPHONIC LEDs are off
The VOLUME and BALANCE potentiometers do not work.
Amplification does not work
The MODE SWITCH switch is out of order, the 4 positions are not present. Mine is tinkered with shunts. I will replace it with another from a JVC RC-M70
The 3 BIPHONIC LEDs are off
The VOLUME and BALANCE potentiometers do not work.
New, I replaced the 4-position switch, the biphonic is back with its front LEDs.
Repair of the BALANCE function potentiometer because a brush has come off.
The next step is to replace the pre-amplification transistor X103 ...
Repair of the BALANCE function potentiometer because a brush has come off.
The next step is to replace the pre-amplification transistor X103 ...
hopey
Member (SA)
Nice work. Funny how the mechanical contacts can fail but makes perfect sense. Contact cleaner is not a fix.
- Status