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G8000 with no sound

I made an error in posting the voltages of F2809.
It was not pin 11, there is no 11.
The +58.59v is actually pin 12.

Also, I missed pin 18, it is -32.08v.

Does this help anyone out?
This board alone has 23 Caps and 20 transistors
I've gotten confident enough to be able to remove and replace most parts, but diagnosing is painfully difficult to grasp so far.
Thanks for any help because I'm actually trying to learn.
 
In your post #20 (voltage list) you show terminals 2 & 3 at very low volts; you need to confirm ac is present at that point, not DC. Is the +/- 33V arriving at terminals 3 and 4 on the tone board?
 
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check voltages at 20 21 22 with the speaker switch the other way . you should hear relays click when turning speaker switch .
 
I appreciate it!

Some more information that should help
I used another amplifier to check preamp out mostly because I couldn't believe they were all not working.
Pre out works just fine, all functions all sources with different amplifier. I used thre separated/coupled setting.

On connected, still just low distorted sound of of right and nothing on left, both a/b
For what you asked:
Both spk relays engage and disengage when powered up and you turn on/off spk a/b

Pin 20 is a steady +22.75v spk a/b on or off.
Pin 21 +22.71v with spk B on and +0.671v off
Pin 22 +22.71v with spk A on and +0.671v off
 
petehall347,
I will get you these #'s tomorrow afternoon. I have tough and crazy work hrs. Thanks for your help
 
looking at this schematic it appears there is a connected separated switch . these often give problems ..try rca cables from pre to main . if it comes good give the switch a good cleaning .
 
Did that early on..... The switch has been cleaned three separate times for good measure because of so many posts pointing that out.
Also Did try RCA's jumped, tested in no change.
 
Ok, here we go.

F2807 voltages

Bottom side with the two molex connectors

Red +59.54v
Blk 0
Orange -59.52v

Red -59.57mv
Blk -2.3mv
Brown +58.70v
Blue -59.95v
Orange -58.3mv

Top side connections

Green -0.4mv
Blk 0
Green -0.4mv
Yellow -43.9mv
Gray -9.5mv
Brown -30.3mv
Brown -31.5mv
Yellow -45.6mv

Please let me know if you need additional readings. These Sansui's boards and schematics are quite a bit different than the Pioneer sx-850 I worked on.
Very cool, but very complex.
 
are the points not numbered like the schematic ?
edit ..ok i see the numbers in circles are where they go to ..
red wires are usually positive so at least one looks wrong .
also i missed f2808 . there should be +- dc voltages coming from it .
 
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On both the downloaded schematics I have the only shot of the F-2807 power supply board it shows is the conductor side with just colors and no #'s.
It's #17
Some of the other boards it does?

I will remove the board from the receiver and see if it's printed on it, you can't see anything without getting it out.
 
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