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Pioneer PDP-502MXE Dead set.

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pan:

Hi all,
Has anyone had this fault?
The set is dead, green LED flashes at times.
Found R108 2.2 ohm 7w on the p/s is o/c, also Q201 2SK2847 is s/c.
I’ve not replaced them yet, done some further cold checks but cannot find any other probs checked for d/js none found.
I just wondered what caused the transistor to fail.
Anyone had the same or similar fault your help will be very much appreciated.
Thanks
Pan 

Restorer79:
Hi Pan: I can't seem to find R108 on the Circuit diagram.


Andy

jordan:
PDP502MX

Restorer79:
Hi Jordan: Downloaded the manual, just in case it was any different to mine. Still can't seem to find R108 though.



Andy

pan:
Hi Guys,
Sorry my eyesight is not what it used to be, R168 2.2 ohm 7w.
Thanks
Pan

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