Pioneer SX440 or KX440

[Mariusvdwalt]

Good day everyone,
I have just purchased a Pioneer KX440, which is the same as the SX440. The one speaker channel on A and another speaker channel on B is distorting.
I need to get my hands on the schematics or circuit diagrams to solve the issue and if anyone can point me to which cap needs replacing and such...really appreciate it.

Marius (South Africa)

 

[Mariusvdwalt]

I found the schematics....do I maybe replace these

 

[Mariusvdwalt]

but if the speaker A left channel is fine and speaker B right channel is fine and they share the same output switch, it points to maybe the switch being dirty or something...Let me test again and verify my findings.

 

[sruchris]

Before you start replacing parts, try cleaning the ON/OFF and SPEAKER A/B switches.

 

[Mariusvdwalt]

I cleaned the switches. The problem comes from the filter circuit where the big 1000uF 2v cap is. I tested the switches by placing the positive speaker wire on each channel and I earthed the negative wire. This white with red striped wire goes from the cap to the switches and then to the speakers.


Can it be even before this?

 

[Mariusvdwalt]

can I test before the cap?