No way it should have had all those parts bad. Somebody must have tin-foiled
the fuse, or used a 30 amp car fuse or the like.
Good job fixing it, though I have to question if it was worth the effort.


Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"Kevin" wrote in message
...
This is for Archive purposes. Neighbor gave me this AV Receiver with no
output. I had repaired a VSX-453 for my son 3 years ago and had purchased
the manual. The manual covers VSX-403, VSX-453 & VSX-463S. The unit
given
to me used the same 5 channel output amplifier as my sons so the repair
was
easier with a good manual. The receiver would power on but no audio, the
relay wouldn't click coming out of Standby. I found the right front
channel
had bad (shorted output transistors and many other parts. This repair took
me about 6 hours.

These are the bad parts:

Q4 = 2SA1302
Q3 = 2SC3281
Q512 = 2SC4793
Q514 = 2SA1837
Q508 = 2SC2705
Q506 = 2SA1145
R534 = .33 Ohm 5 Watt Dual Resistor
R575 & R576 = 2.2K 1/8 Watt
R612, R614, R616 & R618 = 4.7 Ohm 1/4 Watt Fusible
R526, R528, R530 & R532 = 100 Ohm 1/4 Watt Fusible
D522, D524 = 1N4752A 33 Volt Zener 1 Watt
D526 = 1SS252 Used a 1N4148
D548 = MTZJ20 Used a 20 Volt Zener