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Pioneer SX-780 without a fuse board ??

jd2005

jd2005

New Member
Hi,

I came across a faulty SX-780.

When opening it and looking for the problem, I went straight to check the fuses. - Hey... !!! . Where are the fuses ? Surprise ! - No fuses ?!

To my surprise ... there is no fuse board in that unit ! (Fuse Assembly Circuit Board AWR-169 or AWR-171).

Initially I thought that the fuse board may have been taken out by a technician and bypassed, but I can not see any signs wires soldering or cutting or rerouting (There is a gray wire that looks cut and hanging however) . All look original wire warp. - Strange !

Did anyone came across such an issue before ?

Thanks !
 

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The multi-voltage model S (not the S/G US military base unit) does not have a fuse board. You can download the correct schematic from: https://elektrotanya.com/ There should be a sticker on the back panel with the model designation on it.
There is a grey wire from the transformer to the voltage selector on that schematic.
 
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