LG 60LB6500 Service Manual page 117

Standard Repair Process Detail Technical Manual
symptom
LCD TV
Content
When st-by, only 3.5V is normally on.
Direct LED Direct LED
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Only for training and service purposes
Error
B. Power error _No power
Check power input voltage and ST-BY 3.5V
Checking method when power is ON
Established
Revised
Check the DC 24V, 12V, 3.5V.
24 Pin (Power Board ↔ Main Board) -
SMAW200-H24S5 SMAW200-H24S5
1 Power on
3 3.5V
5 3.5V
7 GND
9 24V
11 GND
13 12V
15 12V
17 GND
19 19 GND GND
21 GND
23 L/DIM0_MOSI
2013. 11 .30
date
date date
Common
2 INV_ON
4 PDIM #1
6 3.5V
8 PDIM #2
10 24V
12 GND
14 12V
16 24V
18 GND
20 20 GND GND
22 L/DIM0_VS
24 L/DIM0_SCLK
A18
LGE Internal Use Only