LG 49UB850T - Audio Error_No Audio;Normal Video

Established
date
Standard Repair Process Detail Technical Manual
Revised
A18
Error
symptom
Content
Check power input voltage and ST
BY 3 5V
B. Power error _No power
LCD TV
2014.02.05
date
A18
Content
Check
power
input
voltage
and
ST
-
BY
3
.
5V
Check the DC 24V, 12V, 3.5V.
Pmain
P
_
main
Maker : Yeonho
28Pin SMAW200-H28S5K
’14년 적용 28Pin map (LPB)
1 PWR ON 2 DVR_ON
3 P_DIM #1 4 PDIM #2
5 3.5V 6 GND
7 3.5V 8 3.5V
9 GND 10 GND
11 12V 12 12V
13 12V 14 12V
15 12V 16 GND
17 GND 18 24V
19 24V 20 24V
21
24V
22
24V
21
24V
22
24V
23 GND 24 GND
25 SCLK 26 GND
27 SIN 28 VSYNC
A18
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