LG 42LW4500-ZB / 42LW450A-ZB / 42LW450N-ZB / 42LW450U-ZB / 42LW451C-ZB (CHASSIS:LD01U) Service Manual ▷ View online
b. check the method of RS232C Command
1) into the main ass’y mode (RS232 : aa 00 00)
2) check the key download for transmitted command
(RS232 : ci 00 10)
3) result value
- normally status for download : OKx
- abnormally status for download : NGx
- abnormally status for download : NGx
2. Check the method of CI+ Key value (RS232)
1) into the main ass’y mode (RS232 : aa 00 00)
2) Check the method of CI+ key by command (RS232 :
ci 00 20)
3) Result value
i 01 OK 1d1852d21c1ed5dcx
7. Local Dimming Function Check
Step1) Turn on TV.
Step2) Press “P-only” key, entrance to power only mode and
Step2) Press “P-only” key, entrance to power only mode and
Press “Exit” key.
Step3) Press “Tilt” key, entrance to Local Dimming mode.
Step4) At the Local Dimming mode, module Edge Backlight
Step4) At the Local Dimming mode, module Edge Backlight
moving right to left Back light of module moving.
Step5) Confirm the Local Dimming mode.
Step6) Press “Exit” key.
Step6) Press “Exit” key.
8. 3D function test
(Pattern Generator MSHG-600, MSPG-6100 [Support HDMI 1.4])
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below.
* HDMI mode No. 872, pattern No. 83)
1) Please input 3D test pattern like below.
2) When 3D OSD appear automatically, then select OK key.
3) Don’t wear a 3D Glasses, Check the picture like below.
9. IR emitter inspection
(1) Start 3D pattern inspection
(2) If IR emitter emitter signal is correctly received to IR
(2) If IR emitter emitter signal is correctly received to IR
receiver, the lamp of IR tester turn on.
- 17 -
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
2
0
CI+ key Value
<IR Tester Lamp turned off(NG)>
<IR Emitter inspection>
<IR Tester Lamp turned on(OK)>
- 18 -
BLOCK DIAGRAM
NA
N
D
Fl
a
s
h
(8
G
b
)
Au
d
io
AM
P
PC
MC
IA
Tu
n
e
r_
C
V
B
S
US
B
CO
M
P
1
A/
V
1
SC
A
R
T
RS
-2
3
2
C
PC
-R
G
B
PC
-A
U
D
IO
SP
D
IF
SY
ST
E
M
DDR
3
X 1
6
X 2
(2
G
b
)
51P
HDM
I
1
HDM
I
2
HDM
I
3
H/
P
S
Y
S
T
EM
EEP
R
O
M
X
1
(1
M
b
)
TU
N
E
R
(T
/
C
)
41P
SP
I
Fl
a
s
h
(2
M
b
)
SY
ST
E
M
DDR
3
X 1
6
X 1
(1
G
b
)
Tu
n
e
r_
S
IF
SC
L
/
SD
A
C
I_
T
S
_
D
A
T
A
[7
:0
]/C
L
K
/V
a
lid
/S
y
n
c
C
I_D
A
T
A
[7:
0]
CI
_
A
D
D
R
[1
4
:0
]
F
E
_
T
S
_
D
A
T
A
[0
]/C
L
K
/V
a
lid
/S
y
n
c
US
B
_
D
M
/D
P
HP
_
O
UT
DS
UB
_
R
G
B
/ HV
sy
n
c
DD
C
_
S
D
A
/U
A
R
T
_
T
X
PC_
A
u
d
io
I
N
SPD
IF
_
O
U
T
D
e
bug _T
X
/R
X
SC_
C
V
B
S/
R
G
B
/L
R
_
IN
SC_
V
ID
E
O
/L
R
_
O
U
T
AV_
C
V
B
S
/L
R
_
IN
CO
M
P
_
Y
P
b
P
r/
L
R
_
IN
HDM
I_
T
M
D
S
/HP
D/
C
E
C
HDM
I_
T
M
D
S
/HP
D/
C
E
C
HDM
I_
T
M
D
S
/HP
D/
C
E
C
I2
S
_
I/F
SCL
/S
D
A
30P
Si
d
e
Rear
DA
T
A
Vi
d
e
o
Au
d
io
DA
T
A
Vi
d
e
o
Au
d
io
Su
b
M
ic
o
m
(N
E
C
)
HDC
P
E
E
P
R
O
M
X
1
(8
K
b
)
Fo
r FR
C
SP
I
Fl
a
s
h
(8
M
b
)
SCL
/S
D
A
SCL
/S
D
A
L
G
E10
1
(S7R)
L
G
E10
7
(S7+URS
A
)
- 19 -
300
200
LV
1
LV
2
120
510
A2
A5
A10
A21
800
530
540
521
400
710
810
700
51
1
AG1
900
910
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
Click on the first or last page to see other 42LW4500-ZB / 42LW450A-ZB / 42LW450N-ZB / 42LW450U-ZB / 42LW451C-ZB (CHASSIS:LD01U) service manuals if exist.