LG 55UK6700PVD Service Manual page 68

Standard Repair Process Detail Technical Manual
symptom
Content
SET Model
65UK75 LGD EAY64868601, LGP65-18UL6
55UK75 LGD EAY64808601, LGP4955-18UL6
Power Check Sequence
1. AC input Check : SK100 (100~240Vac)
2. PWR-ON Check : J30
- SET On : above 3V
- SET St-by : 0V
3. 13.2V DC Check : J29
- SET On : 13.2V
- SET St-by : 7.8V
1. 12P, 13.2V OUTPUT
① Pwr_ON PDIM2
D-GND D13
D13 D13
A13 A13
A-GND A-GND
MS PDIM1
Error
B. Power error _No power
Check power input voltage and ST-BY 7.8V
Power P/N, Name
2. 18P, UHD 13.2V Output +
Local Dimming - UK75
D-GND D-GND
①
Pwr_ON PDIM2
D-GND D13
D13 D13
A13 A13
A-GND A-GND
Drv_ON PDIM1
GND SCLK
VSINC SIN
Power Board Voltage / Current
P801
SK100 (AC input)
A18
Established
date
Revised
date
J29 (13.2V)
MS
P201
J30 (PWR-ON)
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A18