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Mike Mike is offline
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Default sony STR-D965 blown R channel

well, the output of that channel is normal with no load, HOWEVER the base
drive signal to both transistors is clipped on the bottom half. results in a
top half clip with a load.


"Mike" wrote in message
...
Ok the front panel was dead, had 2 fuses blown, and the MN2488 and MP1620
was shorted in the right channel. the rest was fine.

Well, i replaced both fuses, replaced both outputs and the 2 10ohm base
resistors. I checked every other resistors and found things to be normal.
i replaced a high ESR 47uf cap also.

there was a small PNP transistor near the 2 outputs that was shorted also,
replaced that.


The set now turns on and works, except as soon as I hook a speaker up to
the right channel output, it goes into protector. i checked and double
checked the resistors in the output circuit. If i leave the speaker
unhooked, its fine. there is NO DC offset according to me meter on the
right channel. if i set the meter on AC, I can see the AC signal on the
meter, and on my scope just normal. if i hook the speaker up to the right
channel, it fires protector mode. the other channels work fine.

any ideas?