TM 9-2320-280-20-1REFERENCE INFORMATIONChange 1 2-81ELECTRICALReplace rotary switch. Referto (para. 4-7).Replace PCB. Refer to (para. 4-5).Replace distribution box. Refer to (para. 4-5.1).Repair or replace harness.Notify DS maintenance.0-4500 OHMSSTE/ICE-R TEST 911. Connect RED clip and BLACK clip to theterminations indicated in the question. RED to thefirst, BLACK to the second.2. Start Test 91, 0-4500 ohms.3. Displayed reading is in ohms. Less than 5 ohmsis continuity. If the resistance is over 4500 ohms,STE/ICE displays "9.9.9.9."0-45 DC VOLTSSTE/ICE-R TEST 891. Connect RED clip to the indicated test point,BLACK clip to negative or ground.2. Start Test 89, DC volts.3. Displayed reading is in volts.There is battery voltage at the PCB/distributionbox at all times. Failure to disconnect batterycable will result in damage to equipment orinjury to personnel.DISCONNECT NEGATIVE BATTERY CABLEBEFORE DISCONNECTING ANDRECONNECTING PROTECTIVE CONTROLBOX/DISTRIBUTION BOX HARNESS.WARNING
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