TAS465 A1 PCB - why is C437 bi-polar


Jon Harrison-Hughes
 

Hi all,

Does anyone know why C437 fitted to the TAS465 A1 pcb is bi-polar ? It's the bulk cap for the -5.2VC supply . Other caps on this board are Nichicon VX and provide the bulk caps for the +8.6VA , -8.6VB , +5.2VB and -5.2VB supplies. Looking at the service manual C437 is shown as polar on the schematic but the parts list shows it as 10VAC. I don't understand why the rationale for fitting a bi-polar cap here. Does anyone have any knowledge of this ?

Thanks,

Jon

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