Toshiba MMU-AP0074YH-E(-TR) Service Manual page 123

N . o P a t r n a m e
1. Detachment
5 P.C. board
assembly
Unlock the lock of the housing to disconnect the connectors.
(In case of drain pump incorporated model)
2. Attachment
Check there is no missing or poor contact of the connectors.
6 Multi blade fan 1. Detachment
case, fan lower
case, fan upper
case
2. Attachment
Arrange the multi blade fan so that screws position at the right side
against the drain pan assembly.
Fix multi blade fan with torque wrench 4.9 N•m or more.
Finally check whether the multi blade fan turns surely and
smoothly or not.
P o r
1) Perform works 1. of 2, 1. of 3, and 1. of 4.
2) Disconnect connectors which are connected from P.C.
board assembly to other parts.
NOTE
CN40: Indoor / Outdoor communication (3P: Blue)
Communication terminal block: 2P
CN41: Remote controller terminal (3P: Blue)
Remote controller terminal block: 2P
CN67: Power supply terminal (3P: Black)
CN100: TC1 sensor (3P: Brown)
CN101: TC2 sensor (2P: Black)
CN102: TCJ sensor (2P: Red)
CN333: Fan motor power supply (5P: White)
CN334: Detection of fan motor position (5P: White)
Relay connector (CN82): PMV lead (6P: Blue)
CN34: Float SW (3P: Red)
CN68: Drain pump lead (3P: Blue)
3) Unlock the lock of the card edge spacer, and then remove P.C. board assembly.
1) Attach P.C. board assembly to the card edge spacer.
2) Using wires connect connectors as before, which were disconnected in procedure 1. 2) of 5.
NOTE
1) Perform work 1. of 2.
2) Take off hanging hooks at both sides of the lower fan case
to remove fan lower case.
3) Remove the upper fan case while taking off hooks of fan
upper case which are hooked to the partition board.
4) Loosen hexagonal hole screw of the multi blade fan to
remove multi blade fan from the shaft.
If necessary, remove multi blade fan and then remove fan
upper case.
1) Determine the position so that multi blade fan positions at
the center of the fan upper case, and then fix it with
hexagonal hole screw.
NOTE
NOTE
2) Hook the lower fan case as before and attach it with hooks.
NOTE
c e d u e r
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R e m a k r s
P.C. board assembly
Terminal block
Hanging hook
Fan lower case
Multi blade fan
Drain pan
assembly side
Arrange the multi blade fan so that
screws position at the right side
against the drain pan assembly.