Technical description
HF SSB Transceiver 9323/9360/9390/9780 Technical Service Manual 4-3
The supply voltages on the Microprocessor and Audio PCB [1 04-02976] are
shown in Table 4-12.
Table 4 -12: Microprocessor and Audio PCB supply voltages
Supply Description Regulator
"A" rail unregulated battery supply
"B" rail 10 V regulated supply IC201
+5 VA 5 V regulated supply IC202
+5 VB 5 V regulated supply IC203
The supply voltages used on the Rx/Exciter PCB [1 04-02972] are shown in
Table 4-13.
Table 4 -13: Rx/Exciter PCB supply voltages
Supply Description Regulator
"A" rail unregulated battery supply (supplies
the crystal oven only)
"B" rail +10 V regulated supply IC201
*
+5 VB 5 V regulated supply IC203
*
+18/26 V 18 & 26 V from the charge pump
supply
IC11
*
Regulator is located on the Microprocessor and Audio PCB [1 04-02976]
The supply voltages on the PA and Filter PCB [1 04-02973 and 04-03096] are
shown in Table 4-14.
Table 4 -14: PA and Filter PCB supply voltages
Supply Description Regulator
"A" rail unregulated battery supply
+5 V 5 V regulated supply selected in
transmit only
IC2
+5 V 5 V supply (supplies IC1 only) V1
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