I am trying to fix my Tek scope power -8 and -15 power supply. I suspect that the op amp in the circuit is bad. It is a C1485C.
I do not have one on hand but the Shack has LM741CN and TL082 op amps. I really do not care if one of these is the best choice. Would one of these work for now?
I am not great at reading datasheets. But would want to run ti by the folks here anyway.
I have included the PS schematic below.
Here are my voltage readings for the -8 section.
U1464A
Pin 1 = .26 (should be 2.1)
Pin 2 = 0
Pin 3 = 7.5 (should be 0)
Pin 4 = .8
voltages for -15 section
U1464B
Pin 5 = 12 V(should be 0)
Pin 6 = 0
Pin 7 = .51
I do not have one on hand but the Shack has LM741CN and TL082 op amps. I really do not care if one of these is the best choice. Would one of these work for now?
I am not great at reading datasheets. But would want to run ti by the folks here anyway.
I have included the PS schematic below.
Here are my voltage readings for the -8 section.
U1464A
Pin 1 = .26 (should be 2.1)
Pin 2 = 0
Pin 3 = 7.5 (should be 0)
Pin 4 = .8
voltages for -15 section
U1464B
Pin 5 = 12 V(should be 0)
Pin 6 = 0
Pin 7 = .51
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