LG 52LB9DF-UA / 52LBX (CHASSIS:LA73C) Service Manual ▷ View online
- 21 -
+
12.0V
+
12.0V
+6
.0
V
+6
.0
V
CS
4344
CS
4344
CS
5340
CS
5340
PQ05
D
Z
1U
PQ05
D
Z
1U
KI
A
7
8R09
KI
A
7
8R09
FAN
1
FAN
1
KIA
7
8R09
KIA
7
8R09
FAN
2,
3
FAN
2,
3
MC
33078
MC
33078
X260
X260
HY
B18
T512
(4EA
)
HY
B18
T512
(4EA
)
AZ
1117
H
-1.8
AZ
1117
H
-1.8
LM7
5
LM7
5
IC
L3232
CB
N
Z
IC
L3232
CB
N
Z
+5
.0
VS
T
+5
.0
V
S
T
+3
.3
V_L
+3
.3
V
_L
AT
/N
T Tune
r
AT
/N
T Tune
r
+5V
_
L
+5.
0V
S
I3865
S
I3865
PQ
05
D
Z
1U
PQ05
D
Z
1U
Live Power
Dead Power
Live-o
n
AZ
1117
H
-3.3
AZ
1117
H
-3.3
LG
D
T
3703
(M
AIN
)
LG
D
T
3703
(M
AIN
)
SC
1565
-1.8
SC
1565
-1.8
IS
L6549
CB
IS
L6549
CB
1.2
V
1.8
V
IS
L6549
CB
IS
L6549
CB
1.8
V
MK
3727
D
MK
3727
D
74LV
T16373
(2
EA
)
74LV
T16373
(2
EA
)
S29GL256
S29GL256
TH
C
63LV
D
1023
T
HC
63LV
D
1023
+3.
3V
_
L
HY
B18
T512
(4EA
)
HY
B18
T512
(4EA
)
MK
3727
D
MK
3727
D
+
19.0V
+
19.0V
NT
P3000
NT
P3000
NT
P3000
NT
P3000
1.8
V
BA033
FP-3
.3
BA033
FP
-3
.3
MTV
416
MTV
416
AZ1086
-1
.8
AZ1086
-1
.8
AZ
1117
H
-3.3
AZ
1117
H
-3.3
SC
1565
-2.5
SC
1565
-2.5
MS
T
3369
MS
T
3369
9.0
V
TE
A6420
TE
A6420
9.0
V
CS
8416
CS
8416
KIA
7
8R09
KIA
7
8R09
MK
3727
D
MK
3727
D
MI
C
2505
MI
C
2505
3.
3V
ST
_MIC
OM
24
C08
24
C08
FR
C
94XY
H
FR
C
94XY
H
Live-o
n
24
C512
24
C512
ST
MA
V335
ST
MA
V335
ISP1504
ISP1504
MI
C
2505
MI
C
2505
K
IA7805
K
IA7805
AZ
1085
S
-3.3
AZ
1085
S
-3.3
AZ
1085
S
-1.8
AZ
1085
S
-1.8
24
C16
24
C16
FRC
FRC
SC
1565
-2.6
SC
1565
-2.6
MI
C
3910
-2
.5
MI
C
3910
-2
.5
SC
1592
-1.0
SC
1592
-1.0
12.0
V
HY
5D
U281622
HY
5D
U281622
SC
2595
-1.0
SC
2595
-1.0
- 22 -
ATI
X2
60
ATI
X2
60
SIF
NT
P3
000
NT
P3
000
I2S
SP
DI
F
I2S
CV
BS
(N
T
M
ai
n)
DD
R2
64MBx
2
DD
R2
64MBx
2
Flex Bu
s
RG
B
3
0bi
t
TPA
A
nal
og
Front
En
d
U
SB 1.1
I2C
P
ort0
I2C
C
H
1
I2C
C
H
2
I2C
C
H
3
MTV415
Mic
om
MTV415
Mic
om
U
SB (up
grade rea
dy!!)
Dea
d IC w
hen
Sta
ndby
Dea
d IC w
hen
Sta
ndby
Vi
de
o
Sc
al
er
0
Vi
de
o
Sc
al
er
1 or 2
Al
iv
e IC w
hen Sta
ndby
Al
iv
e IC w
hen Sta
ndby
Aud
io
Vide
o
TP
AV
2
/ L/R
MNT Out
L/
R
COMP1 L/R
COMP2 L/R
RGB L/R
TP_IN1
AV
1
AV
2
AV
1,
Y/
C1
AV
2,
Y/
C2
Flash
(NOR 32MB)
Flash
(NOR 32MB)
Latch
x
2
Latch
x
2
24C
51
2
24C
51
2
Cable
AT/N
T
VSB
LGDT
3303
VSB
LGDT
3303
63L
V
D
1023
63L
V
D
1023
10
80P
LV
D
S
Con.
10
80P
LV
D
S
Con.
Dual
AV
1
/ L/R
GPIO
I2S
ATI
X260
(# of
MPEG de
cod
er)
COMP2
RGB
CS
84
16
CS
84
16
HDMI
SPDI
F
I2S
I2S
MST336
1
1H
DMI +
1A
D
C
MST336
1
1H
DMI +
1A
D
C
RGB
HD
M
I1/2/3
SP
DI
F
SP
DI
F
Opt.
FRC
94
xyH
FRC
94
xyH
DD
R1
16MB
DD
R1
16MB
RGB odd
RGB ev
en
120
H
z
TPB
U
SB 1.1
U
SB(
EMF)
PCI
3:1
Demux
3:1
Demux
24C
16
24C
16
Air
3:1
Demux
3:1
Demux
MSP4
45
0K
MSP4
45
0K
I2S
SIF
- 23 -
Ch
eck L729
Ch
eck
Po
w
er conn
e
ct
o
r
Re
place
P
o
w
er
b
o
ar
d
Ch
eck T
H
C63
LV
D
1023 (
IC601
)
#9
(DE),
#
1
5(Cl
k)
, #
7(H
s
yn
c
),
#8
(V
s
ync
)
Ch
eck X260 (
IC101
)
Ch
eck P600
#47(
D
IS
P
_E
N
),
#33
(T
X
A
C-) , #
3
2(T
X
A
C+)
,
#17
(T
XBC-) ,
#
1
6(T
XBC+)
Ch
eck T
H
C63
LV
D
1023 (
IC601
)
Ch
eck L
V
DS
Cab
le
Check PDP/LCD Module
Control bo
ard
1
2
3
4
5
1 :
_
C
heck
t
h
e
L
729 H
IG
H
.
_C
heck
P
o
w
er c
o
n
n
ec
to
r.
Y
NY
Y
YY
Y
N
N
2
: _
C
heck
t
h
e T
H
C
6
3L
V
D
1023
(I
C601
)
inp
u
t si
g
n
al
#(Cl
k) :
74.25
M
H
z
3
: _Ch
e
c
k
th
e
P
6
0
0 input
sig
n
a
l
#47
(DI
SP
_
EN) :
#33 (
T
X
A
C-
) :
74.25
M
H
z
3.3
V
GND
#32 (
T
X
A
C
+
) :
4 :
_
C
heck
t
h
e
L
V
D
S
Ca
b
le
5
: _Ch
e
c
k
th
e
PDP
Modul
e
co
ntrol bo
ard
#17 (
T
X
B
C
-)
:
#16 (
T
X
B
C
+
) :
74.25
M
H
z
74.25
M
H
z
74.25
M
H
z
- 24 -
EXT
1/
2
X260
TP A
Comp1
/2
RGB
CVBS
TP C
TP B / 656
AT
/N
T
/
TUNER
LGDT
3303
VSB1/Q
A
M
TP
MST
3361
HS,VS
DVI
HS,
VS
YCbCr
2
YCbCr
or RGB
FRC9445H
RGB
CVBS
YCbCr
1
DVO
Y/C1, Y/C2
Y/C1, Y/C2
AV
1/
2
AV
1/
2
HDMI
1/2
/3
TMDS
341
A
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