Noise Filter P.c. Board 1 (Mcc-1748) Replacement Procedure - Toshiba MMY-MUP0801HT8P-TR Service Manual

(8) Screw the Fan-motor P.C. board to the heat sink by the two screws (
If the screws are loose, the semiconductors will generate heat, and cause it to breakdown.
Do not use an electric driver or an air driver.
The semiconductor may receive a damage.
(9) Re-connect the connectors. Be sure that all the connectors are connected correctly and securely inserted.
(10) If the components on the P.C. board were bent during board replacement, adjust it manually ensuring that
it is not short-circuited or contact other parts.
(11) Install the cover, then turn on the supply. Check the operation.

13-1-6. Noise Filter P.C. Board 1 (MCC-1748) Replacement Procedure

43T6W888: MMY-MUP0801*/1001*/1201*/1401*
Subject part
Included item:
MCC-1748 : 1pcs
Replacement Steps:
(1) Turn off the power supply of the outdoor
unit and wait at least 5 minutes for the
capacitor to discharge.
(2) Remove all of the connector and
solderless terminal tab (CN04), screw
terminal ( : 6pcs) which were
connected to the Noise Filter P.C. board.
Solderless terminal tab need to push
lock pin. (Remove the connectors by
pulling the connector body. Do not pull
the wire.)
(3) Remove eight screws
( : 6pcs, : 2pcs).
(These screws are to be re-used after
procedure.)
(4) Remove the P.C. board from the four
spacers ( : 4pcs,
(5) Using a new spacer (
( ), attach the service board.
(6) Screw the Noise Filter P.C. board by the
eight screws ( , ) that were
removed in step (3).
(7)
Re-connect the connectors and screw
terminals ( ), solderless terminal tab
(CN04).
Be sure that all the connectors and the
screw terminals are connected correctly
and securely inserted.
(10 ) If the components on the P.C.board
were bent during board replacement,
adjust it manually ensuring that it is
not short-circuited or contact other
parts.
(11) Install the cover, then turn on the
supply. Check the operation.
Spacer : 4pcs
Screw
Screw
Screw
: 2pcs).
, ), a bush
Space r
Solderless terminal
(CN04)
) that were removed in step (3).
The torque of the screws
Screw
Spacer : 2pcs Bush : 6pcs
Noise Filter P.C. board
(43T6W888)
Spacer
Screw
Screw
Screw
The torque of the screws
Screw
Screw
Screw terminals
- 296 -
M3 14 0.6N• m
Screw
Screw
Spacer
RED lead wire
(CN21)
WHITE lead wire
(CN22)
BLACK lead wire
(CN23)
Spacer
Spacer
RED lead wire
(CN01)
WHITE lead wire
(CN02)
BLACK lead wire
(CN03)
Space r
M3 × 18 0.6N• m
M4 × 8 1.2N• m
2.5N• m
M6 × 12