pioneer sx1500td blowing fuse
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Joined: Nov 2012
City: Kansas city, MO.
When I check a transistor I remove from circuit.Based on PNP or NPN I put pos. on base or neg on base and do the BE BC reading on ohm setting then do E to C. and CtoE should get no reading. then pos. or neg. opposite of what it should be. example NPN I put the neg on the Pbase and should get no reading to E or C. If this is wrong correction is appreciated. ( The Q3,4,5,6 (NPN 2SC497) and Q7,8, 2sa497 PNP I installed new with NTE128 for the NPNs and NTE129 for the PNPs Q7&8).
I suppose one of them could be bad or burnt out when I first repowered unit up but the symptom was the same as before I did any work on the unit. I have ordered new resistors and the small value caps for the board and will recheck all the transistors out of circuit.
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RE: pioneer sx1500td blowing fuse - by KCMike - 01-12-2015, 11:12 AM
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