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recapping sx-850 for my son

1MEGΩ said:
Put your meter on AC and check the AC voltage at pins 25 and 26.
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Make sure you put one meter lead on 25 and the other meter lead on pin 26 when you check the AC voltage. Polarity here does not matter. You are checking AC voltage.
 
I feel so stupid!!! And I feel this is going to come back and haunt me . The receiver wasn't plugged in. HAHA... i'll take new measurements and post them.
 
nackesww said:
-0.34
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Seems like a trace is cracked. You need to follow the copper trace on the collector of Q2 back to the bridge rectifier.That trace is more than likely broken somewhere. Also look for a bad solder joint at the collector and at the bridge rectifier. Can you check for voltage on the negative side of the bridge? The bridge is made up of 4 diodes. D1, D2, D3 and D4. Check for -60 volts on the anode of D1 and D3.
 
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checked all solder joints back to c3 and they all read -0.34 . D1 0 , D2 .36 , D3 0 , D4 .36. All measurements were taken on Neg side.
 
I turned my meter off then back on and no I'm getting different readings. Now at Q2 collector I get -OL. I probably hit the wrong button on my meter.
 
nackesww said:
checked all solder joints back to c3 and they all read -0.34 . D1 0 , D2 .36 , D3 0 , D4 .36. All measurements were taken on Neg side.
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Set your meter to AC and put one lead on the cathode of D1 and the other lead on the cathode of D3. Tell me what the voltage is.
 
Well if Q2 is getting hot, you may have a short on the emitter side. Pull the AC plug from the wall, wait 10 minutes and tell me what the resistance is from the emitter of Q2 to ground.
 
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