Indoor Unit Pcb Output Check - Daikin SiBE041010 Service Manual

SiBE041010

5.1.11 Indoor Unit PCB Output Check

Check No.18 (1) Check the connector for connection.
(2) Check the motor control voltage is generated (between the pins 2 and 3).
5.1.12 Rotation Pulse Check on the Indoor Unit PCB
Check No.19 (1) Check the connector for connection.
(2) Turn the power on and stop the operation.
(3) Check if the Hall IC generates the rotation pulse 4 times when the fan motor is manually
Service Diagnosis
S200
12
Free pin
11
Free pin
10
9
Free pin
8
Free pin
7
6
Free pin
5
Free pin
4
3
2
1
rotated once (between the pins 1 and 3).
S200
12
Free pin
11
Free pin
10
9
Free pin
8
Free pin
7
6
Free pin
5
Free pin
4
3
2
1
Phase U
Phase V
Phase W
GND
Motor control voltage (15 VDC)
Rotation pulse (5 VDC)
(R11979)
Phase U
Phase V
Phase W
GND
Motor control voltage (15 VDC)
Rotation pulse (5 VDC)
(R11979)
Check
97