LG 42LB5800 - Page 44

Contents of LCD TV Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
1
A. Video error_ No video/Normal audio
Check LCD back light with naked eye A1
2 LED driver B+ 24V measuring method A2
3 Check White Balance value A3
4 Power Board voltage measuring method A5
6
A. Video error_ No video/Video lag/stop
TUNER input signal strength checking method A6
7 LCD-TV Version checking method A7
9
LCD TV ti di
A8
9
A. Video error_Color error
LCD
TV
connec
ti
on
di
agram
A8
10 Tuner Checking Part A9
11 Check Link Cable (LVDS) reconnection condition
A10
A11
A10 : 32/37/42/47/55
A11 : 32 AUO
12 Adjustment Test pattern - ADJ Key A12
13
A. Video error_Vertical/Horizontal bar,
residual image light spot
LCD TV connection diagram A8
14 Check Link Cable
(
LVDS
)
reconnection condition
A10
A11
A10 : 32/37/42/47/55
A11 32 AUO
residual
image
,
light
spot
()
A11
A11
:
32
AUO
15 Adjustment Test pattern - ADJ Key A12
16 Exchange T-Con Board (1) A-1/5
17
Exchange T
Con Board (2)
A
2/5
<Appendix>
Defected Type caused by T-Con/ Inverter/
Module
17
Exchange
T
-
Con
Board
(2)
A
-
2/5
18 Exchange LED driver Board (PSU) A-3/5
55” : driver board
Other : PSU
19 Exchan
g
e Module itself
(
1
)
A
-4/5
2/ 97
g()
20 Exchange Module itself (2) A-5/5
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