LG CT09F - Page 132

Part 4 Trouble Shooting
- 132 -
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N
LC
220
L
L
L
L
L
N
C
L
N
C
OK
L
N
C
L
N
C
NG
1) Check Voltage Input of AC 220 V, Indoor &
Outdoor Communication
2) Check electric short Communication Line and Power Line
After Removing Power Line Wire and Communication Line Wire, Check the voltages
- Check resistance Communication ↔ Live should be infinite
- Check resistance Communication ↔ Netural should be infinite
- Check resistance Communication ↔ Gnd should be infinite
When Input AC 220 V,
- Check AC 220 V Live ↔ Netural, Indoor & Outdoor
- Otherwise, arrange the Communication Wire, Check AC 220 V
Equipment : Multi-Meter
Test Mode : AC Voltage
Indoor & Outdoor Terminal block
Equipment: Multi-Meter
Test Mode : Resistance
Check Voltage Input of AC 220 V
noitacinummoC ecnatsiseR kcehC
Line and Neutral
noitacinummoC ecnatsiseR kcehC
Line and Live
IDU
T/B
ODU
T/B
IDU
T/B
ODU
T/B
NLC
∞
Ω
NLC
∞
Ω