HP 4328A - Modulator P;O A2 Troubleshooting

TABLE 8-8
MODULATOR P/0 A2 TROUBLESHOOTING
CHECK WAVEFORMS
A2 T .. P 7, 8
A2e o
CHECK
BAD- FLIP-FLOP
TABLE 8-4
MODULATOR
OK -FUNCTIONS
PROPERLY
CHECK
FIND
BAD-AND
FIX
BAD- CONNECTOR, ---1
T202
CHECK
BAD-CR202,
CR203
CHECK
OK DC LEVELS
-oF Q201,
Q202, Q203
RETURN TO
OK- BEGrNNING
AND
RECHECK
REPLACE
BAD-FAULTY
COMPONENT
CHECK
WAVEFOR
OK-A2 T.P 1:
A2-
REPLACE
BAD-FAULTY
COMPONE