Toshiba SUPER MMK-AP0073H (IN) Service Manual page 110

Check code
[L29] / [CF]
(Current code / AI-NET)
Sub-code:
01: IPDU1 error
03: IPDU1, 2 error
05: IPDU1, fan IPDU error
07: All IPDU error or disconnection of communication line between IPDU-I/F P .C. board or outdoor I/F P .C. board error
Is jumper setup of outdoor I/F P.C. board correct?
(Jumpers 7, 8, 9 ON)
Is communication connector between IPDU and
I/F P.C. board connected?
Is there no disconnection of communication
line between IPDU and I/F P.C. board?
Is there voltage fluctuation between
4 and 5 pins of CN600 on I/F P.C. board.
(Measurement by tester: DC0 to 5V, 5 pin GND)
Is there voltage fluctuation between
3 and 5 pins of CN600 on I/F P.C. board.
(Measurement by tester: DC0 to 5V, 5 pin GND)
Replace IPDU P.C. board with trouble.
Check code name
IPDU quantity error
02: IPDU2 error
04: Fan IPDU error
06: IPDU2, fan IPDU error
YES
NO
NO
YES
YES
Both IPDU (No.1, No.2) and fan IPDU
did not return the communication.
Cause of operation
1. Incorrect model setup in service for I/F P.C. board
2. Communication error between IPDU, fan IPDU and I/F
3. IPDU, fan IPDU, I/F P .C. board error
NO
YES
YES
NO
NO
110
Correct connection of connector.
Correct connection of connector.
Replace communication line.
I/F P.C. board error
I/F P.C. board error