LG 42LH60YR (CHASSIS:LP91S) Service Manual ▷ View online
- 17 -
BLOCK DIAGRAM
RGB
_PC
PC_
A
udi
o
TV
(RF)
COMP
1
HDMI1
HDMI2
TX
PC_R
/G
/B
/HS
/V
S
PC_
A
u
d
io
_L/R
:
700
mV
rms
MNT_V
OUT
:
1
V
pp
SIDE
_V
:
1V
pp
SID
E
_LIN
/RIN :
500m
Vr
ms
DDR2 SDR
A
M
(512
MB
)
EE
PROM
24
C02
Comp
1
_
L
/R :
500m
Vr
ms
TUNER
A
V
1_VI
N
:
1V
p
p
A
V
1
_
L
IN
/RIN :
500m
Vr
ms
MNT_OUT
MNT_LOUT/R
OUT
:
500m
Vr
ms
AV
2
(Sid
e
A
V
)
MA
IN SCALER
LGE376x
A
COMP
1_Y
/P
b
/Pr
:
1/
0
.7V
pp
COMP
2_Y
/P
b
/Pr
:
1/
0
.7V
pp
IR
HDMI_D
A
T
A
_
1
HDMI_D
A
T
A
_
2
DDC_SCL
2
/SD
A
2
MEMC_RXE
2–
–
MEMC_RXE
4–
–
MEMC_RXC
3–
–
MEMC_RXC
––
MEMC_RXE
1–
–
MEMC_RXE
0–
–
TV
_M
A
IN
MA
IN_
S
I F
COMP
1_Y
/P
b
/Pr
:
1/
0
.7V
pp
A
V
1_VI
N
PC_
A
udi
o
_L/R
COMP
1
_
L
IN/RI
N
FRC LV
DS
connec
tor
TV
_M
A
IN
M_SCL/SD
A
MA
IN_
S
IF
A
V
1
_
L
IN
/RIN
MNT_L/R
OUT
AV
1
MNT_OUT
Comp
2
_
L
/R :
500m
Vr
ms
COMP
2_Y
/P
b
/Pr
:
1/
0
.7V
pp
COMP
2
_
L
IN/RI
N
COMP
2
MEMC_RX
O2–
–
MEMC_RX
O4–
–
MEMC_RX
O3–
–
MEMC_RX
OC–
–
MEMC_RX
O1–
–
MEMC_RX
O0–
–
PC_R
/G
/B
/HS
/V
S
DDC_SCL
1
/SD
A
1
DSUB_
SCL/
SD
A
MNT_V
OUT
A
V
2_VI
N
A
V
2
_
L
IN
/RIN
USB
USB_D
P/DN
AU
DI
O
AM
P
DDC_SCL
3
/SD
A
3
EE
PROM
24
C02
HDMI_D
A
T
A
_
3
TMDS
TMDS
TMDS
HDMI3
EE
PROM
(256
K
)
Se
rial
Flas
h
(8MB
y
te)
EE
PROM
24
C02
FULL HD
LV
DS co
nnector
FRC IC
L
G
E7329
A
URS
A
_
[C~D]
URS
A
_
[A
:B]
OPC_EN
DDR2 SDR
A
M
(2ea
*256
MB
)
Re
a
r Input
Sid
e Input
LIPS
RL_
ON
/I-DIMMI
NG
/DIS
P
_
EN
P
A
NEL_ST
A
TUS
E-DIM
OPC_O
UT1/2
EE
PROM
for HDCP
(8K)
Se
rial
Flas
h
EE
PROM
24
C02
EE
P
_
SCL/
SD
A
EE
P
_
SCL/
SD
A
L_
SPK_
OUT
R_SPK_OUT
IIS_OUT
L_
SPK_
OUT
R_SPK_OUT
PW
M
NT
P3
100
L
L_
SPK_
OUT
R_SPK_OUT
PW
M
NT
P3
100
L
PW
M
NT
P3
100
L
L_C
H
R_CH
L_C
H
R_CH
L_C
H
R_CH
DSP
IC
DSP
CS48560
0x80
(W)
0x81
(R)
DSP_I2
S_1
DSP_I2
S_2
DSP_I2
S_3
REA
R
FRONT
WO
OFER
M_I2
C_
Rea
r
M_I
2C
M_I
2C
M_I2
C_
Rea
r
M_I
2C
I2
S
M_I
2C
- 18 -
LV
1
LV
2
A2
A10
300
301
200
121
560
120
130
140
A5
500
510
310
123
200T
801
900
550
400
808
804
803
802
807
530
809
805
806
124
540
820
521
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
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