Check; Fan Motor Connector Output Check - Daikin CTXU25G2V1B Service Manual

SiBE12-908

3. Check

3.1

Fan Motor Connector Output Check

Check No.01 1. Check connector connection.
2. Check motor power supply voltage output (pins 4-7).
3. Check motor control voltage (pins 4-3).
4. Check rotation command voltage output (pins 4-2).
5. Check rotation pulse input (pins 4-1).
Service Diagnosis
Upper fan connector
7 Motor power supply voltage
Unused
6
Unused
5
4 P.0V (reference potential)
Motor control voltage (15 VDC)
3
2
Rotation command voltage (1~ 5 VDC)
1
Rotation pulse input
S1
(R6940)

Check

168