Read LG 42LH60YR (CHASSIS:LP91S) Service Manual 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
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