Read LG 22LH20D (CHASSIS:LB91A) Service Manual online
- 14 -
BLOCK DIAGRAM
DDR2 (1Gb
it)
Qimonda
/
Hy
nix
NAND Flash
(512Mb
it)
Digita
l
A
udio (Optic
)
Digita
l AMP
NT
P3100L
RS-232C (Ctrl./SVC)
I2S
DD
R_Data[
0:
15]
,
D
QS,
DM
…
Ad
dr.[ ]
, ctrl. data
MAX3
232
RS232 IC
Saturn6
Saturn6
Dat
a
[
0
…
7
]
DT
V
I
F
+
/-
Component 1
Y
Pb Pr
Au
d
io
L/R
Ad
dr[0…1], C
S
…
Phone (for RGB)
SP
DI
F
RX
/T
X
R
X
/TX
Tuner C
V
B
S, SIF
TS_Serial
In
TS_
c
lk, Sy
nc, Va
l,
Err
TS_
P
a
ra
lle
l
In[0-7]l
SCL
,
SDA_
3
.3V
CV
BS
LCD
Module
LV
D
S
Bu
ffe
r
C
E
6355
In
te
l
De
m
o
d
.
CV
BS
RGB/
H/V
EEPR
OM
AV
1
AV
2
RGB
Au
d
io
L/R
USB2.0
U
SB D
P
/DM
MIC2019
O.C. Protector
+5V
+5V
Serial Flas
h
(32Mbit)
SP
I
EEPROM
(512K)
CM3212
Sensor
SCL
,
SDA_
3
.3V
X
C
5000
T
une
r
LH30 LU20 : Side
LH20
:
Rear
Rear
DDR2 (512Mb
it
)
Qimonda
/
Hy
nix
DD
R_Data[
0:
15]
,
D
QS,
DM
…
Ad
dr.[ ]
, ctrl. data
Rear
Au
d
io
L/R
Au
d
io
L/R
Au
d
io
L/R
SVC only
LH30 LU20 : Side
LH20
:
Rear
HDMI 1
HDMI 2
HDMI 3
5V_H
DMI
1,
HPD1, DD
C
SC
L
/S
D
A
,
CLK,
DA
TA
5V_H
DMI
2,
HPD2, DD
C
SC
L
/S
D
A
,
CLK,
DA
TA
5V_H
DMI
3,
HPD3, DD
C
SC
L
/S
D
A
,
CLK,
DA
TA
LH30 LU20 : Side
LH20
:
Rear
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