2). Noise Filter P.c. Board (Mcc-1749) Replacement Procedure - Toshiba MMY-MUP0721FT6P-UL Service Manual

13-1-7(2). Noise Filter P.C. Board (MCC-1749) Replacement Procedure

Target model 43TN9876: MMY-MUP0721FT9*/0961FT9*/072H1FT9*
Included items:
① MCC-1749 : 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 connectors attached to the Noise
Filter P.C. board. (Remove the connectors by pulling
the connector body. Do not pull the wire.)
(3) Remove screws (⑦：12pcs (M6) ) and Line-Filters
which were connected to the Noise Filter P.C. board.
(4) Remove 8 screws(⑤：6pcs (M3), ⑥：2pcs (M4) ).
(5) Keep the removed screws as they will be reused.
(6) Remove the P.C. board from 6 spacers (②:4pcs,
③:2pcs).
(7) If spacers (②, ③) are damaged, replace it and
attach bushes(④) to the service P.C. board(①).
(8) Screw the Noise Filter P.C. board by 8 screws
(⑤, ⑥) that were removed in step (4).
(9) Re-connect the connectors and screw
terminals(⑦), Line-Filters. 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 or
contact other parts.
(11) Install the cover, then turn on the supply.
Check the operation.
② Spacer : 4pcs ③ Spacer : 2pcs
The torque of the screws
⑤
⑥
⑦
④ Bush : 6pcs
Noise Filter P.C. board
⑦ BLACK lead wire
⑦ RED lead wire
⑦ BLACK lead wire
② Spacer
⑥ Screw
(M4)
④ Bush
⑤ Screw (M3)
⑥ Screw
(M4)
② Spacer
④ Bush
⑤ Screw (M3)
Screw M3 x 0.7" (18mm)
Screw M4 x 0.3" (8mm)
Screw terminal M6 x 0.47" (12mm)
- 347 -
(43TN9876)
(CN28, M6)
(CN26, M6)
④ Bush
(CN27, M6)
⑤ Screw (M3)
② Spacer
⑦ RED lead wire
⑦ WHITE lead wire
⑦ BLACK lead wire
③ Spacer
⑦ Line Filter(CN11, M6)
⑦ Line Filter(CN12, M6)
⑦ Line Filter(CN13, M6)
③ Spacer
⑦ RED lead wire
⑦ WHITE lead wire
⑦ BLACK lead wire
② Spacer
0.44 ft•lbs (0.6 N•m )
0.89 ft•lbs (1.2 N•m )
2.21 ft•lbs (3.0 N•m)
(CN21, M6)
(CN22, M6)
(CN23, M6)
(CN01, M6)
(CN02, M6)
(CN03, M6)