HP 400E Operating And Service Manual page 35

Model 400E/EL Section V
Paragraphs 5-45 to 5-46
9-45. AC OUTPUT CIRCUIT.
5-46. To check the ac output circuit, measure the dc voltages at the points
shown in Table 5-9. Ifa given measured voltage is incorrect, the trouble
is probably in that component or its associated circuit.
Table 5-9. AC Voltage Output Circuit
TRANSISTOR -—_#__| =
5-1)