HP 4328A - AC Amplifier P;O A2 Troubleshooting; Phase Detector and DC Amplifier P;O A2 Troubleshooting

Model 4328A
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'1.
TABLE 8-6
AC AMPLIFIER P/0 A2 TROUBLESHOOTING
CHECK WAVEFORM
A2 T. P 7
TABLE 8-7
CHECK DC LEVELS
OK- OF Q202, Q203, ---1
Q204
CHECK CONNECTOR
BAD A3 (9, K), C308,
-T303, C201, T201,
C202
CHECK WAVEFORM
A2T.P.10
OK-A28
AND DC LEVEL
OF Q205
REPLACE
BAD-FAULTY
COMPONENTS
PHASE DETECTOR AND DC AMPLIFIER P/0 A2 TROUBLESHOOTING
CHECK WAVEFORM
A2 T. P. 10
BAD-RETURN TO
TABLE 8-6
CHECK WAVEFORM
OK- A2, T. P 11
A2.
CHECK WAVEFORMS
OK-A2T P. 12, 13
A2•
8
CHECK C210
BAD- AND CONNECTION