Toshiba RAV-SP1100UT-E Service Manual page 63

[97 error] (Central controller)
Is X, Y communication line normal?
Are connections between connectors
CN02, CN03 of network adapter P.C. board
and connectors CN309, CN41 of indoor P.C. board
(MCC-1402 or MCC-1403, normal?
Is A, B communication line normal?
Is there no connection error of power line?
Is not power of source power supply turned on?
Did a power failure occur?
Is the network address changed
form remote controller?
Is there no noise source, etc.?
Can central remote controller
control normally other indoor units?
Is handling of central remote controller reflected
on the operation status of indoor unit?
Does network adapter P.C. board
LED (D01) go on?
Check network adapter P.C. board and power transformer.
Defect Replace
YES
YES
YES
NO
NO
NO
NO
NO
NO
(Same as others)
YES
NO
YES
Can handy remote controller control
normally other indoor units?
NO
NO
NO
Check connections of A, B terminal blocks.
Correct communication line of remote controller.
YES
YES
YES
YES
YES
NO
YES
63
Correct communication line.
Correct connection of connector.
Correct power cable.
Turn on the source power supply.
Clear the check code.
Eliminate noise, etc.
Check central controller.
Defect Replace
Check indoor P.C. board
(MCC-1402 or MCC-1403).
Defect Replace