Hitachi Utopia RPI-2.5HRG Service Manual page 87

SERVICING
(3) Disconnect all wires connecting to the ISPM.
G Disconnect CN201, CN202, PCN201, PCN202 (Wire for Fan Motor)
G Disconnect CN203, CN204, CN206, CN101 (5HVRG only)
G Disconnect RB, N, P, P1 and R, S, U, V, W on the terminal board and the faston terminal TB3 of
ISPM.
(4) Remove the four (4) screws fixing the ISPM.
NOTE:
Do not hold the PCB on the ISPM when removing the ISPM.
When handling the PCB, take care of not to use
excessive force as this will cause damage.
(5) Disconnect all wires connecting to the ACT module.
G Disconnect CN101
G Disconnect the faston terminal L1, L2, P, N1, + and - of ACT module.
(6) Remove the two (2) screws fixing the ACT module.
NOTES:
1. Do not remove the insulation part from the screw after removing the screws.
2. Do not lose the insulation sheet between ACT module and fin.
G ISPM
Fan Motor
Lead Wires
CN201 CN202
CN203 CN204
RB
N
CN206
P
PCN201
P1
TB3
PCN202
R S T U
Power Cable
for Compressor
NOTES:
1. Identify terminal Nos. with the mark band Nos. when reassembling. If incorrectly connected, malfunction
or damage to the electrical parts will occur.
2. In the case of mounting ACT module, check the insulation sheet does not have any hole and insulation
tube attach to the fixing screw.
3. Pay attention not to clamp the wires when close the power plate.
2-10
TURN OFF all power source switches.
ISPM
Fan Motor
Lead Wires
Fixing Screw
for Inverter Module
V W
Tool Phillips Screwdriver, Long-Nose Pliers
G ACT Module
Insulation Sheet
Act Module