Removing Printed Circuit Board - Hitachi RAI-50PPD Service Manual

SERVICING
(4-Way Cassette (Compact) Type)

1.1.5 Removing Printed Circuit Board

(1) Remove the electrical box cover according to the item 1.1.2 "Removing Electrical Box Cover."
(2) Disconnect all wire connectors from the indoor unit PCB.
(3) Remove the screw for earth wire.
(4) Remove the screw then remove the PCB cover.
(5) The indoor unit PCB is
NOTES:
1. Do not touch electrical components on the indoor unit PCB.
2. Do not to apply an excessive force to the indoor unit PCB nor bend it. Otherwise, it may cause failure of
the indoor unit PCB.
3. When attaching the indoor unit PCB, make sure that the connectors are connected correctly. If not, the
indoor unit PCB may be damaged. In addition, securely attach the screws for each wire.
TURN OFF all power source switches.
by 6 holders. Pull out PCB from each holder as shown in the
Pinch here with long-nose piler
to remove PCB.
PCB
Electrical Box
Pinch here with long-nose piler
to remove PCB.
PCB
Electrical Box
90
Tool Phillips Screwdriver, Long-nose Plier
Holder
PCB
Holder