Daewoo FRS-U20DD. Service Manual page 31

5-5. Compressor speed control (Inverter comp. models only – FRN-U20***I)
1. Circuit Diagram
2. Measure the Frequency Output Signal from Main-PCB.
Condition
Normal operation
( RT-Sensor 35℃↑)
Normal operation
( RT-Sensor 35℃↓)
Initial Power connected
Super FRZ
Super REF
Weak-Cool
Frequency Output Signal
(CN 16 of Main-PCB)
122 Hz
85 Hz
122 Hz
31
A
INVERTER
Signal Image