Indoor Unit Pcb Output Check - Daikin E Series Service Manual

Check

3.12 Indoor Unit PCB Output Check

Check No.18 <Control PCB (A1P)>
1. Check for proper connection.
2. Check that the supply voltage applied to the motor is output between No.4 pin and No.7 pin).
3. Check that the motor control voltage is output (between No.3 pin and No.4 pin).
Check that the rpm command voltage is output (between No.2 pin and No.4 pin).
210
S1
7 Motor supply voltage
6 Vacant pin
5 Vacant pin
4 P.OV(Reference electric potential)
3 Motor control voltage (DC15V)
2 RPM command voltage (DC~6.5V)
1 RPM command pulse input
SiBE04-624
(R4023)
Service Diagnosis