When amp turn's on, there is no audio.
No shorted fets or output transistors. I had bounch of 4558 and 494 so i replaced them. I get -/+ 15v on opamps. I got -/+ rail voltage on center of output transistors.
I guess there is no schematic or service manual for this amp.
494
1 2.14
2 2.87
3 0.07
4 0.10
5 1.39
6 3.60
7 0.01
8 12.5
9 2.45
10 2.86
11 4.9
12 4.9
13 11.92
14 12.50
15 4.40
16 4.40
I am not sure what am i missing.
No shorted fets or output transistors. I had bounch of 4558 and 494 so i replaced them. I get -/+ 15v on opamps. I got -/+ rail voltage on center of output transistors.
I guess there is no schematic or service manual for this amp.
494
1 2.14
2 2.87
3 0.07
4 0.10
5 1.39
6 3.60
7 0.01
8 12.5
9 2.45
10 2.86
11 4.9
12 4.9
13 11.92
14 12.50
15 4.40
16 4.40
I am not sure what am i missing.
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