SECTION V: TROUBLESHOOTINGTM 9-2350-256-20WARNINGRemove all jewelry such as rings, dog tags,bracelets, etc. If jewelry contacts a metalsurface a direct short may result in instantheating of tools, damage to equipment, andinjury or death to personnel.C Reconnect gage panel to bulkhead wiring harness togage panel. Install ground strap (5), two lockwashers(4), two screws (3), gage panel (6), three lockwashers (2),and three screws (1) to mounting brackets. Removethree screws (7), three lockwashers (8), ground lead (9),and flat washer (10), and release main switch panel (11)from mounting brackets. Disconnect switch panel togage panel and miscellaneous switches wiring harnessfrom switch panel. Place red lead of multimeter in pin Nand black lead to ground. Turn MASTER switch on andcheck for voltage. Turn MASTER switch OFF. If voltageis present, go to step E. If voltage is not present, go tostep D.D Reconnect switch panel to gage panel and miscellaneousswitches wiring harness to switch panel. Install mainswitch panel (11), flat washer (10), ground lead (9), threelockwashers (8), and three screws (7) to mountingbrackets. Open air inlet doors (TM 9-2350-256-10).Disconnect switch panel, radio, and bilge pump tobulkhead wiring harness from bulkhead disconnect.Place red lead of multimeter in socket A wire 48 andblack lead to ground. Turn MASTER switch on andcheck for voltage. Turn MASTER switch OFF. If voltageis present, repair/replace switch panel, radio, and bilgepump to bulkhead wiring harness (see paragraph 6-53).If voltage is not present, troubleshoot master relay (seeparagraph 2-19, master relay fails to operate).2-199
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