Back to this amp i talked to the owner and he asked if i could take another look at this amp..
Heres what i have for voltages in the power supply section..
Just wondering if someone could verify the voltages are correct or if there is a problem..
UC3526
Pin 1:4.98
Pin 2:4.98
Pin 3:1.24
Pin 4:4.62
Pin 5:4.98
Pin 6:0
Pin 7:0
Pin 8:4.97
Pin 9:3.58
Pin 10:2.09
Pin 11:0
Pin 12:4.98
Pin 13:0.64
Pin 14:14.56
Pin 15:0
Pin 16:0.60
Pin 17:14.55
Pin 18:4.98
Power supply fets
Gate leg:0.78
Drain:13.85
Source:0
U3 LM339
Pin 1:9.41
Pin 2:14.48
Pin 3:14.98
Pin 4:0.30
Pin 5:0.17
Pin 6:0.00
Pin 7:4.98
Pin 8:0.58
Pin 9:9.78
Pin 10:0.21
Pin 11:1.00
Pin 12:0.00
Pin 13:0.40
Pin 14:4.97
U2 LM339
Pin 1:2.53
Pin 2:9.71
Pin 3:14.46
Pin 4:0.10
Pin 5:1.51
Pin 6:4.98
Pin 7:11.66
Pin 8:4.38
Pin 9:4.98
Pin 10:4.98
Pin 11:8.25
Pin 12:0
Pin 13:0
Pin 14:11.06
Heres what i have for voltages in the power supply section..
Just wondering if someone could verify the voltages are correct or if there is a problem..
UC3526
Pin 1:4.98
Pin 2:4.98
Pin 3:1.24
Pin 4:4.62
Pin 5:4.98
Pin 6:0
Pin 7:0
Pin 8:4.97
Pin 9:3.58
Pin 10:2.09
Pin 11:0
Pin 12:4.98
Pin 13:0.64
Pin 14:14.56
Pin 15:0
Pin 16:0.60
Pin 17:14.55
Pin 18:4.98
Power supply fets
Gate leg:0.78
Drain:13.85
Source:0
U3 LM339
Pin 1:9.41
Pin 2:14.48
Pin 3:14.98
Pin 4:0.30
Pin 5:0.17
Pin 6:0.00
Pin 7:4.98
Pin 8:0.58
Pin 9:9.78
Pin 10:0.21
Pin 11:1.00
Pin 12:0.00
Pin 13:0.40
Pin 14:4.97
U2 LM339
Pin 1:2.53
Pin 2:9.71
Pin 3:14.46
Pin 4:0.10
Pin 5:1.51
Pin 6:4.98
Pin 7:11.66
Pin 8:4.38
Pin 9:4.98
Pin 10:4.98
Pin 11:8.25
Pin 12:0
Pin 13:0
Pin 14:11.06
Is there a question about the operation of the power supply? It appears to be producing rail voltage.
Just wondering if it appears the power supply is working correctly to rule that out as a problem since i have distorted output in this amp
Please restate the problem with the amp. I think there was some confusion previously. Didn't you say that it cleared up when you touched your finger across some of the components?
- Status
- Not open for further replies.