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TROUBLESHOOTING & REPAIR
F-47 F-47
COMMANDER 400
FIGURE F.19 - RESISTOR R1 LOCATION
RESISTOR R1
LEAD #204B
ACTIVE SCR TEST (continued)
8. Locate and remove lead #204B from
resistor R1 (50 ohms, 100 Watts). See
Figure F.19.
FIGURE F.20 - HEAT SINK TEST POINTS
ANODE
CATHODE
REMOVE
INSULATING PAINT
9. Remove the red insulating paint from the
heat sink test points. See Figure F.20.
NOTE: Do not disassemble the heat sinks.