FILE NO. SVM-02003
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(2) Inspection procedres
1) when a P.C. board is judged to be defective,
check for disconnection, burning, or
discoloration of the copper foil pattern or this
P.C. board.
2) the P.C. board consists of the follwing 2 parts
a. Main P.C. board part:
power relay, indoor fan motor drive circuit and
control circuit, C.P.U. and peripheral circuits,
buzzer drive circuit and buzzer.
b. Infrared rays receive and indication parts:
Infrared rays receiver unit and LED.
9-6-1 How to check the P.C. board
(1) Operating precautions
1) When removing the front panel or the P.C.
board, be sure to shut off the power supply.
2) When removing the P.C. board, hold the edge of
the P.C. boed and do not apply force to the
parts.
3) When connecting or disconnecting the
connectors on the P.C. board, hold the Whole
housing. Do not pull at the lead wire.
