Gary L. Woodruff wrote:
Howdy, I have a optimus 3170 that came to me with blown output
Transistors on one channel. I replaced the outputs with subs as
originals were not available. I also found a couple of open resistors,
and diodes. I now have power and audio in both channels at low volume
but get the protection relay clicking on and off on one channel when
volume is increased. I do not have a print and it would be very
difficult to check anything under power due to the configuration of heat
sinks and board layout. Please Help!


thanks, Gary



The original transistors were 2SC3281 and 2SA1302, they were replaced
with NTE2328 and NTE2329. The other components replaced were Q512, D520,
D522, R612, R614. any help would be greatly appreciated.
Thanks, Gary