Adjustments
HF SSB Transceiver 9323/9360/9390/9780 Technical Service Manual 7-3
Voltage regulators
None of the voltage regulators are adjustable. Only the output voltages can be
checked.
Table 7 -1: Microprocessor and Audio PCB voltages
Test Point Description
B
+10 V ±0.2 V regulated DC IC201
+5 VA +5 V ±0.2 V regulated DC IC202
+5 VB +5 V ±0.2 V regulated DC IC203
Table 7 -2: Rx/Exciter PCB voltages
Test Point Description
+26 V +26 V ±1.0 V charge pump supply
+18 V +18 V ±1.0 V charge pump supply
TP2 Switched DC supply (IC6/C), B rail
voltage in receive, 0 V in transmit
TP3 Switched DC supply (IC6/D), B rail
voltage in transmit, 0 V in receive
Table 7 -3: PA and Filter PCB voltages
Test Point Description
+5 V Switched
Regulated DC supply selected in
transmit only (IC2) +5 V ±0.2 V
No test point provided but can be
checked at a number of places, for
example, R43 or PTC R34
V1 Zener
DC supply to IC1 (V1) +5 V ±0.25 V
Can be checked at IC1 pin 5
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