I presume the transistors you replaced were the large output devices.
the 2 immediately preceding them (electrically) are the most likely to have
a faulty/leaky junction and be giving you the offset of DC on the output
you will need to check carefully each junction out of circuit for a leak (I
always find an analogue meter the best for this, unless you have a
transistor tester.)
I these 2 are ok then just move backwards through the circuit looking at all
the tr junctions and for high/open resistors.
a DC offset of more than 0.6v is sufficient to hold the protection circuit
on. normally you will probably measure full + or - rail voltage there
(midpoint of the 2 way 0.22ohm res)
Sorry I can't be more specific, I haven't a manual.

AW

"Sidney" wrote in message
m...
Onkyo receiver/amp model:TX-SV313PRO,year:1996 one day the customer
turned the unit on and there was no audio ouput only a burning
smell.Upon troubleshooting I found that the following parts were
defective:

Q507=2SA1695 (was shorted)
Q505=2SC4468 (was shorted)
R515=8.2 ohm,1/4w (visually burnt and somewhat higher resistance)
R531=2.2 K ohm,1/4w (visually burnt)
R519=0.22 ohm,5w dual emitter (cement metal) (open on one end,I think)

So I replaced all those parts with exact replacements,there is still
no audio output on any mode or set of speaker outputs,I noticed that
when I turn unit on on the main power supply relay engages and not the
ones on the output stages.I measured most discrete passive components
with my Fluke series II DMM model 29 on low ohms (diode range) and
most parts seemed ok.
Anyone have any common repair tips for me from all of those repair
tips sites?.Thanks in advance for replies.

Sidney

Dartmouth,Nova Scotia
Canada