troubleshoot Pioneer SX-2900

[jts1957]

If fuse not blowing with primary disconnected, reconnect and unsolder all 7 connections on the secondary. If memory serves, there aren't any plug/sockets on the multi-wire connections. The little circuit board (43) with the larger solder pads should have to be cleared of solder and the board removed. While this board is out measure from each solder pad to ground. Only pin 4 should be zero ohms.

Edit: can you tell what part(s) the liquid condensate spilled on? And it has had sufficient time to evaporate?
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[scar]

ok so with the board (43) floating, i measured from each pad on that board to ground. some of the measurements were a little jumpy, i probably didn't clear off the solder very well, but eventually all the pins except 4 were reading outside my meters range (2000k). pin 4 was zero ohms as you predicted.

and the water spilled onto the Complex Assembly (pg. 7 of the PDF)

[scar]

actually when i turn down my meter to 200, pin 4 is actually measuring about 13 ohms... not sure if that is significant or not....

[jts1957]

You missed a few answers to questions I previously asked?
1) With good fuse and Primary wire floating, did plugging in and turning on result in fuse blowing?
2) With good fuse and secondary board (43) completely removed from transformer, did plugging in and turning on result in fuse blowing?
3) WHEN did water get spilled?
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[jts1957]

So much for my auto-ranging meter presumption.
You're looking for any unexplained reading of less than a few hundred ohms.
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[scar]

well #1 i can't test now because i reconnected the primary and have the secondary completely disconnected.

#2 no the fuse does not blow

#3 it was a few days ago while the unit was on and playing the radio. when the music stopped and we noticed the water dripping into it, i told my dad to unplug it and let it sit over night to dry.

[jts1957]

So much for my auto-ranging meter presumption.
You're looking for any unexplained reading of less than a few hundred ohms.
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[scar]

oh well if you can't explain it then i surely can't! do you suggest we toss it and buy the one on ebay for $40?

[jts1957]

OOps - No delete feature either.

No need to do #1 if is OK on #2.

IF only a drop or two, a day or three with no airflow or warm sun beating down on it should be sufficient.
IF more, you may want to let it evaporate further (or put in the breeze of a fan or in the midday sun to help speed up.
Front board (Control Assembly) wasn't dripped onto, was it?
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[jts1957]

You can check (Q1 thru Q4) between each output transistor leg and ground for shorts.

You could put your meter on 'Diode Test' and check the bridge rectifier, if its NOT mounted flush to the board.
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