HP 4328A Operating And Service Manual page 7

Page 6-5, Table 6 ·2, Reference Designation Index:
See Table 1, Parts Information.
Page 4-7, Figure 4-5 and Page 8-19, Figure 8-17, A2 PHASE-SENSITIVE AMPLIFIER Assy.:
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Change the value of R234 to 3.16kn-
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• 3 •