I had a chance today to tear apart a Denon AVR-2105 receiver I grabbed off eBay for about $40 since it wasn't working. Unit powers up, displays some info on the screen then shuts down into protection mode.
After some deep digging, that is taking out all 9 or so PCBs including the main one, I found the front left output PNP transistor has a shorted collector to emitter.
It's a Sanken Electronics 2SB1560 darlington which doesn't seem to exist for consumer purchase. On Digi-Key the closest thing I could find is a TIP147TU. Think this would work as a substitute? I noticed the Sanken datasheet lists a pretty high hfe range compared to the TIP. Of course I'd also be replacing its NPN counterpart as well. Thanks,
After some deep digging, that is taking out all 9 or so PCBs including the main one, I found the front left output PNP transistor has a shorted collector to emitter.
It's a Sanken Electronics 2SB1560 darlington which doesn't seem to exist for consumer purchase. On Digi-Key the closest thing I could find is a TIP147TU. Think this would work as a substitute? I noticed the Sanken datasheet lists a pretty high hfe range compared to the TIP. Of course I'd also be replacing its NPN counterpart as well. Thanks,
