Akai aj480fs

[Logic7247]

Hi greetings for all
I am looking for akai aj480fs .I bought u unit from fb seller the unit is working but the pinch roller to be replaced i am looking for it
Also I need the schematic of radio board or full chasis diagram. Because the radio also not working. No power at radio board. The circuit is a bit complicated the radio ground and main ground is same. But there is cap 220mf 6.3 connected from 12volt in series 220ohm resistor then a zener diode 6volt grounded then series resistor 100ohms to the cap .but the cap +ve is connected to the main ground. Really confusing how does it work. It's always 0ohm between +ve and -ve terminals of the cap
A fm ic LA3350s is in the main board
Kindly help with schematic
Thanks

 

[hopey]

Check the function switch. Sometimes the internal contacts have corroded needs to be pulled down cleaned and rebuilt.

 

[Logic7247]

Yes you are correct. But I checked there is no short on it. The -ve side of the cap is also going to band selector switch but every thing fine there .I couldn't see any component defective there .the circuit is confusing. The +ve terminal of the cap is connected to the main ground of the radio also the -ve terminal is connected through another wire .may be some one swap the wire that's what I suspects I am looking for the schematic
Thanks for your reply