LG 42CL40-UA (CHASSIS:LA92B) Service Manual ▷ View online
- 29 -
BLOCK DIAGRAM
SIDE
SIDE
J
A
CK
P
A
CK
J
A
CK
P
A
CK
D-sub RGB
HDMI 1
Side A
V
CV
BS
, L
/R
DDR2 (5
12Mb
it
)
Qimonda
/ Hy
nix
NAND Flash
(256Mb)
Digita
l A
udio
(Optic
)
Digita
l AMP
NT
P3100L
RS-232C (Ctrl./SVC)
I2S
EEPROM
512Kb
RGB/
H/V
Half-NIM Tuner
DD
R_Data[
0:
15]
, D
Q
S,
DM …
Ad
dr.[ ]
, ctrl. data
MAX3
232
Saturn5
Saturn5
(ATSC US)
(ATSC US)
LGE3159
MPEG2
L
inux
Scal
er
He
adphone
D
a
ta [0 …
7
]
IF
+/-
SIF
TU_CVBS
R
e
set / IF
_AGC
…
SDA
/SCL_
5V
JT
A
G
C
L
K,T
D
I,T
D
O
,M
S,
R
S
T
HDMI4
Ad
dr[0…1], C
S
…
Au
d
io L/R
A
u
dio L/R (for
RGB)
HDMI 2
SP
DI
F
RX
/T
X
R
X
/TX
RE
A
R
RE
A
R
J
A
CK
P
A
CK
J
A
CK
P
A
CK
SCL
, SDA
_3
.3
V
T
R
B
u
ffer
VS
B
D
e
m
od.
X-t
al
Res
et
S
w
itch
Reset IC
12MH
z
T
S
In[0…
7]
TS_
cl
k, SOP, Va
l
EEPR
OM
Data[1
6:31]
DDR2 (5
12Mb
it
)
Qimonda
/ Hy
nix
AV
Component 1
Y
Pb
Pr, L/R
CV
BS
, Y/
C,
L
/R
Component 2
Y
Pb
Pr, L/R
Digital A
udio
(Coaxial)
USB2.0
SCL
, SDA
_3
.3
V
B
lu
e
tooth
Do
ngl
e
(Option)
DP
/D
M
DP
/D
M
O.C. Protector
+5V
+5V
LCD Module
(FHD+120Hz)
(F
H
D
+
T
ru
m
o
tion240
H
z
)
FRC IC
(LGE7329)
DDR2
Qimonda/Hy
nix
FRC Block
FRC Block
LV
D
S
LCD Module
(FHD, 6
0Hz)
Option
HDMI 3
HDMI S/W
L
RCK
LR
CH
Mas
ter CLK
- 30 -
I2C Map
+3.3V
NTP3100L
IR(Ey
e-Q)
+5V_GENERAL
LG
E7329
(FRC)
LGDT3305
SDA_0, SCL_0
MEMC_SD
A
, M
E
MC_SC
L
SDA_1, SCL_1
SD
A
_
S
UB/
A
M
P,
SCL_
SUB/
A
M
P
FE
_DEM
OD
_SD
A
, F
E
_DEM
OD
_
S
CL
+5V_GENERAL
TUNER
FE_
TUNER_SDA,
FE_
TUNER_SCL
+5V_TU
OPTIO
N
AT24C512
EEPROM_SDA,
EEPROM_SCL
+3.3V
LG
E315
9
ISP_RXD,
ISP_T
XD
+5V_ST
TDA9996H
L
T
D
A
9996_S
D
A
, T
D
A
9996_S
CL
CAT24WC08
HDCP
HDMI_SDA,
HDMI_SCL
+3.3V_
HD
MI
S
aturn
5
I
S
P D
e
bug
Port
TDA9996H
L
I2C Map
- 31 -
POWER MANAGEMENT
POW
ER MANAGEMENT
+12
V
S
I4925
12V_
T
C
O
N
M
P
2212
+
5
V_
EX
T
A
S
7809D
+5V
_TU
+
5
V_
ST
S
I4925
T
P
S2042
+9V
K
IA
78R05
F
L
706
+5.
2V
A
P
1117
+3.
3V
_
S
T
+3.
3V
_
A
VDD_M
PLL
L703
T
D
V
H
-103
M
S
D
3158
MA
X810
0
V
=>
+3.3V=>0
V
R
ese
t
M
S
D
3158
MA
X3232C
L1209
L1200
E
y
e
-Q
:C
M
3212
A
T
24C02
B
N
L1201
LED/
IR
L
715
+12
V
C
A
T
2
4WC
A
P
1117
+3.
3V
_
A
VDD_M
PLL
M
S
D
3158
v
PA
N
E
L
_
C
T
L
EN
EN
PO
WE
R
_
O
N
/O
FF
,
P
O
WER_
ON
_D
EL
A
Y
EN
Modul
e-T
con
+24
V(P
SU),
2
0V(
Lip
s)
L
602
+
2
4V_
A
M
P
(P
S
U)
,20V_A
M
P
(L
ips)
N
T
P3100
L
SSM
6N1
5
F
U
+3.
3V
_
S
T
+5V
L
709
+5V
_G
ENER
A
L
M
P
2212
+12
V
M
P
2212
EN
+
5
V_
EX
T
S
C
156515
S
C
4215
+3.
3V
_
P
V
S
B
+1.
2V
_
P
V
S
B
+3.3V
_
A
VDD_P
VSB,
+3.
3V
_D
VDD_
P
VSB
+1.
2V
_D
VDD_
P
VSB
L
G
DT3305
+3.
3V
N
T
P3100
L
A
Z
1117
+1.
8V
_
A
M
P
N
T
P3100
L
S
C
4215
+1.
8V
_DDR
+
1
.8
V_S_
D
D
R
M
S
D
3158
H
Y
B
18T
C
512160
B2
F
M
X
25
L3205
M
P
2212
+1.
2
6
V
_
VDDC
L
711
L
717
IC705
M
S
D
3158
v
+3.3V
_MEMC
W2
5X20
M
P
2212
D
N
+1.8V
_MEMC
A
PE8953
+1.
2
6
V
_MEMC
M
S
T
7329
Nc
M
S
T
7329
N
M
S
T
7329
N
JS
T1223
T
D
A
9996
+3.
3V
_HDMI
A
T
24C512
B
W
T
D
A
9996
+1.
8V
_HDMI
EN
EN
EN
EN
VSB_CTRL
+5V
_G
ENER
A
L
EN
AV
D
D
_
A
U
AV
D
D
A
V
DD_MEMPLL
A
V
DD
_L
PLL
A
V
DD
_DM
AV
D
D
_
O
T
G
+3.
3V
_
VDDP
M
S
D
3158
v
- 32 -
MAIN IC => POWER MANAGEMENT
+
5
V_
ST
A
P
1117E33G
+3.
3V
_
S
T
+3.
3V
_
A
VDD_M
PLL
MA
X810
R
ese
t
+5V
+5V
_G
ENER
A
L
AV
D
D
_
A
U
AV
D
D
M
P
2212
D
N
+1.
2
6
V
_
VDDC
M
P
2305
D
S
A
V
DD_MEMPLL
A
V
DD
_L
PLL
A
V
DD
_DM
AV
D
D
_
O
T
G
+3.
3V
_
VDDP
+3.
3V
S
C
4215
+1.
8V
_DDR
L
101
Saturn5/L
GE3159
Saturn5/L
GE3159
L
715
L
703
L
709
L
711
L
109
L
103
L
106
L
108
L
107
L
102
W7
AV
D
D
_
A
U
J7
~
N
7
A
V
D
D
_33_1
~
5
H1
7,
T
2
0,
V
2
0
A
V
DD_MEMPLL
R2
0
A
V
DD
_L
PLL
W8
A
V
DD
_DM
H8
AV
D
D
_
U
S
B
H9~W10
VDDP
_
1
~8
G12~W18
A
V
DD
_DDR
_
1~1
1
D1
6~Y
2
2
VDDC_1~2
7
H7
A
V
DD
_MPL
L
EN
EN
Main IC =>
POWER MANAGEMENT
D4
HWRESET
L
717
IC702
IC103
IC704
IC705
IC701
IC100
S
I4925
EN
Q706
PO
WE
R
_
O
N
/O
FF
,
PO
W
E
R
_
O
N
_
D
E
L
A
Y
L
720
+
5
V_
ST
EN
Click on the first or last page to see other 42CL40-UA (CHASSIS:LA92B) service manuals if exist.