38 Specifications subject to change without notice. SG-38MARB-01
DIAGNOSIS AND SOLUTION (CONT)
Index
DC Fan Motor (Control chip is in the fan motor)
Power on and when the unit is in standby mode, measure the pin1-pin3 and pin4-pin3 voltage in the fan motor connector. If the voltage value is
not in the range shown in the following table. the PCB is faulty and must be replaced.
• DC motor voltage input and output (voltage:220-240V~):
• DC motor voltage input and output (voltage: 115V~):
No. Color Signal Voltage
1 Red Vs/Vm 192V~380V
2 --- --- ---
3BlackGND0V
4 White Vcc 13.5~16.5V
5 Yellow Vsp 0~6.5V
6 Blue FG 13.5~16.5V
No. Color Signal Voltage
1 Red Vs/Vm 140V~190V
2 --- --- ---
3BlackGND0V
4 White Vcc 13.5~16.5V
5 Yellow Vsp 0~6.5V
6 Blue FG 13.5~16.5V