Mitsubishi FB13PNT, Quick Start Manual

Page: 106 / 292

2-19 2-19
502813 502813
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
(18) Disconnect battery plug (18) Disconnect battery plug
(14) Dis (14) Dis conn conn ect connec ect connec tor E-02 tor E-02 of logic unit of logic unit
Check continuity between E-02-5 and E-05-3(3) Check continuity between E-02-5 and E-05-3(3)
Check continuity between E-02-6 and E-05-4(4) Check continuity between E-02-6 and E-05-4(4)
Check continuity between E-05-14 and E-05-15 Check continuity between E-05-14 and E-05-15
Continuity Continuity No No continuity continuity
(15) Connect connector E-01, then turn on power again (15) Connect connector E-01, then turn on power again
(16) Repair or replace harness (16) Repair or replace harness
(17) Measure voltage between E-05-18(11) and (17) Measure voltage between E-05-18(11) and
E-05-20(12) E-05-20(12)
Confirm v Confirm v alue is alue is 8 ± 8 ± 2V 2V
Normal Abnormal Normal Abnormal
(20) Replace power supply card of logic unit (20) Replace power supply card of logic unit (19) Ensure all connectors are connected. (19) Ensure all connectors are connected.
Then turn on power again Then turn on power again
"E7" "E7" Not Not "E7" "E7"
(25) Replace pump inverter (DSP card is normal) (25) Replace pump inverter (DSP card is normal)
(24) Disconnect battery plug, then perform inverter (24) Disconnect battery plug, then perform inverter
discharging work discharging work
(22) Replace DSP card of (22) Replace DSP card of
pump inverter pump inverter
(21) D (21) D isco isco nnect battery nnect battery plug, then per plug, then per form form Inverter Inverter
disc disc hargin hargin g g work work
If fault remains If fault remains
CA CA N N
(23) Connect connector (23) Connect connector
securely securely
(13) Secure harness if loose (13) Secure harness if loose
Replace inverter if wire breaks Replace inverter if wire breaks
(12) D (12) D isconnect c isconnect c onnector E-05 onnector E-05 of pump inverter of pump inverter
Check continuity between E-01-3 and E-05-17(10) Check continuity between E-01-3 and E-05-17(10)
Check continuity between E-01-6 and E-05-20(12) Check continuity between E-01-6 and E-05-20(12)
Continuity Continuity No No continuity continuity
(11) Remove pump inverter DSP card cover, then check (11) Remove pump inverter DSP card cover, then check
flat cabl flat cabl e e looseness or looseness or wire break wire break age age
Normal Abnormal Normal Abnormal
Power supply Power supply
Thermal Thermal