HP 4328A Operating And Service Manual page 63

Model 4328A
TEST POINT MEASUREMENT CONDITIONS AND LOCATIONS
Measurement Conditions
1. Set Range Switch to lmn.
2.. DC voltage check, probes open and shorted (voltage in both con-
ditions shown in schematics).
3.. To observe waveforms, connect a p1ece of copper wire (AWG
#12 - #18) across probes, and adjust the length to get full scale
deflection.
4. Measurement made with respect to CIRCUIT COMMON.
Waveform Test Point Locations
Test Pgint
Location ~
A3TPl A3Q303 EMITTER
A3TP2 A3Q307 BASE
A3TP3 A3Q316 BASE
A3TP4 A3 BLU
A3TP5 A3 (9, K)
A3TP6 A3Q312 BASE
A2TP7 A2Q201 BASE
A2TP8 A2Q202 BASE
A2TP9 A2Q204 BASE
A2TP10 A2Q205 COLLECTOR
A2TP11
A2 CR202, CR203 junction
A2TP12 A2 (2, B)
A2TP13 A2 (3, C)
A2TP14 A2 (8), (11) Use Differential Input.
A2TP15
A2Q209 EMITTER
~scLLAT
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