C. Board Exchange Procedures; Replacement Of Outdoor P.c. Boards - Toshiba MMY-MAP0726FT2P-UL Service Manual

14
P.C. BOARD EXCHANGE PROCEDURES
■ Outdoor Unit
14-1. Replacement of outdoor P.C. board
Before replacing P.C. board, turn off the power supply of the outdoor unit.
※
Immediately after turning off the power of the outdoor unit, the electrolytic capacitors inside the
unit will still have a high voltage, and there is a risk of electric shocks. Therefore, wait at least 5
minutes after turning off the power before starting the replacement procedure.
Using a voltmeter as shown below, confirm that the P.C. board (Compressor) voltage between
(＋) and (－) (of IPM Q201) is 10VDC or less.
(－) of IPM
P.C. Board for Compressor (MCC-1683)
10V. DC
＋ －
IPM (Q201)
Expanded view of IPM
− 249 −
(＋) of IPM