Fan-Ipdu P.c. Board (Mcc-1610) Replacement Procedure - Toshiba MMY-MAP0726FT2P-UL Service Manual

14-1-5. Fan-IPDU P.C. Board (MCC-1610) Replacement Procedure

This board is commonly installed in different models before shipment. Set the DIP switch (SW800) setting of the
service board to the switch setting before replacement.
Replacement steps:
(1) Turn off the power supply of the outdoor unit and allow at least 5 minutes for the capacitor to discharge.
Check the light of LED(D690) turned off.
(2) Remove all the connectors and the Faston and screw terminals(①) connected to the FAN IPDU.
(Remove the connectors and Faston terminals by pulling the connector body. Do not pull the wire).
(3) Remove all five screws(②) which secures the FAN IPDU to the Heat sink.
(These screws are to be re-used after procedure.)
(4) Remove the Fan IPDU from the four PCB Mounts (③).
MMY-MAP0726FT2P-UL
FAN IPDU
(MCC-1610)
(5) Confirm that no dirt or damage is on the sub heat sink. As it can reduce the heat transfer efficiency, and cause a
breakdown.
MCC-1610 (43T6V776)
③
LED(D690)
③
①Power Supply
Input CN500
Remove the PCB
Sub Heat Sink
Heat Sink
FAN-IPDU
④Jumper for address setting
− 254 −
③
①Faston terminal
RED lead wire
①Faston terminal
WHITE lead wire
①Faston terminal
BLACK lead wire
②Screw
Push this part to
the direction of the
arrow. And remove
the PCB.
PCB Mounts ③
IC701
DB510
Q590
DB511