Power Supply/RF Board
4-22 Force FX Electrosurgical Generator C Service Manual
Low Voltage Power Supply
The low voltage power supply is rated for 40 W. It delivers a regulated +5 Vdc and
±12 Vdc output. This power supply automatically adjusts for both input voltage ranges. It
also has internal current limiting. The pinouts between the low voltage power supply and
the Power Supply/RF board are listed below:
The low voltage power supply specifications are as follows:
*Total output power cannot exceed 40 W.
RF Output Stage
Low Voltage
Supply J2-PIN
Voltage PSRF Board
BW14-PIN
Test Point
1 (ORG Lead) + 12 V 3 TP6
2 (RED Lead) + 5 V 1 TP8
3 (RED Lead) + 5 V 6 TP 8
4 (BLK Lead) GROUND 4 TP9
5 (BLK Lead) GROUND 5 TP9
6 (BLU Lead) - 12 V 2 TP5
Output Voltage Output Current Output Power*
+5 Vdc 4000 mA 20.0 W
-12 Vdc 400 mA 4.8 W
+12 Vdc 2000 mA 24.0 W
Warning
High frequency, high voltage signals that can cause severe burns are present in the RF output
stage and in the associated mounting and heat sink hardware described in this manual. Take
appropriate precautions when testing and troubleshooting this area of the generator.
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