Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
PUMP-UP
V-IN
VC
C
PUMP
GN
D
V-OUT
STAG
E
V-REF
O/
-U
P
CEM
IN
OUT
GND
S
V-DY
H-DY
WARINNG
BEFORESERVICING
THIS
CHASSIS, READ 'X-RA Y
RADIATION PRECAUTION,' `SAFETY PRECAUTION' AND PRODUCT
SAFETY NOTICE IN THIS MANUAL
CAUTION : THE MARKS IN THE SCHEMATIC DIAGRAM AND THE PARTS LIST DESIGNATE
COMPONENTS WHICH HAVE SPECIAL CHARACTERISTICS FOR SAFETY, AND SHOUL
D
BE REPLACED ONLY WHICH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT OR
SPECIFIED IN THE PARTS LIST. BEFORE REPLACING ANY OF THESE COMPONENTS,READ
CAREFULLY THE PRODUCT SAFETY NOTICE IN THIS MANUAL .
DO NOT DEGRADE THE SAFETY OF THE RECEIVER THROUGH IMPROPER SERVICING.
A0
A1
A2
GND
SDA
SCL
TEST
VCC
KS
SAW
I.RE F
GND
OUT
Vcc
EW
SIZE
Y
Cb
Cr
STEREO
PLL
PILOT
PLL
PILOT
PILOT
LEVEL DET
CANCELLER
REGUL
ATOR
MODE
OUT
MATRIX
-6dB
L-R
DEMOD
SAP
DEMOD
SAP BPF
SIF DEMOD
LPF
SAP
DET
ST/SAP
SW
LPF
LPF
dbx processor
Offset
Cancell
SYSTEM
CONTROL
I2C
DECODE
Control
ST
SAP
S
pectral
RM
S
D
E
T
Address
MUTE
L-R/SAP
MUTE
L+R
R-OUT
R-IN
L-OUT
L-IN
B
D/ S
G
R
FB
V-OUT
V-IN
5
4
2
1
8
6
7
3
10
9
11
12
Ripple
Filter
+OUT2
-OUT2
+OUT1
-OUT1
Input AMP
Out AMP
Out AMP
Vcc
Standby
IN1
PREGND
MUTE
IN2
Input AMP
Power
GND
TIMER
0
RESET
ADC
V DET
R
I/O
RESET
G
PORT 1
B
RAM
RST
FS
I
XTSEL
CPU
CPU CLOCK
CORE
VDD3
BASE
TIMER
ROM
OSD
DATA
VDD5
BUS
CLOCK
CVBS
CLOCK
VS
PET_IN
CONTROL
AFT
C_SYNC
HS
POWER_IN
PORT 0
I/ O
TEXT
TELE
PLL
BUS
HS
VS
ABL
ACL
DRIVE/CUT-OFF
OSD
SW
OSD
CONTRAS
T
OSD
CONTRAST
BRIGHT
HOR
C/ D
1/25 6
HOR
VCO
AFC1
HOR
OUT
PHASE
SHIFTER
FBP
HOR
VCC
AFC2
VER
RAMP
VER
C/D
SEP
VER
SYNC
SEP
E/W
APC1
VXO
VCO
APC2
DDS
FSC
(EHT)
1CHIP
VDD
IF
AGC
AGC
RF
SPLL
BPF
DET
900K
AMP
VIF
DET
SOUN
D
DET
VIDE O
AMP
VIDEO
TRAP
VCO
AMP
FM
DET
FM
LI M
AMP
BPF
MATRIX
RGB
CLAMP
COLOR
TINT
COLOR
CLAMP
DC ADJ
SW
SEOAM
DECODER
CLMP
PAL SW
DEMO
DC
REST
BS
SG
SHARP
DL
BPF
SW
V/Y
ADC
YC SW
TRAP
CLMP
SW
VIDEO
DC
VOL
SW
SW
TONE
RGB SW
EXT
CONTRAST
EXT RGB
DRIVE
CUT-OFF
SW
IF
NC
30V
NC
5V
SDA
SCL
CS
NC
AGC
16bit DAC
(MONAURAL)
SRC
(STEREO)
16bit DA
C
(A2/DQPSK)
DEMODULATOR
DECODER
NICAM
ADC
PGA(AGC)+10bi t
IIC
PLL
OSCILATOR
AMP
98.304MHz
18.432MHz
8
14
13
9
12
11
10
1
2
5
7
REG
BUFF
MODE
SELECT
DET
AL
C
AL
C
6dB
BUFF
BU
F
F
BUFF
IN
OUT
GND
S
LG
DSGD.
CHKD.
TITLE
UNIT
DWG NO.
SCALE
Date
mm
APPD.
SCL
SDA
EW
GAME/FM_DATA
GAME_CLK/FM_CLK
SPK_L
MUTE
EYE
MUT
E
EW
POWER/FM_CE
IR
FRONT/SIDE-R
REAR-R
REAR-L
FRONT/SIDE-L
SPK_R
REAR-L
SIDE-R
SIDE-L
SIDE-V
FRONT-V
FRONT-L
REAR-L
VER-OUT
HOR-OUT
FBP
B-OUT
G-OUT
R-OUT
ABL
R
-OUT
G
-OUT
B
-OUT
VI
F
_
IN
2
SDA
SCL
SDA
IR
SDA
SCL
TV-R
VIF_IN1
REAR-R
MNT_L-OUT
MNT_R-OUT
FB_IN
AV1-ID
DVD-Y/G_IN
DVD-Cb/B_IN
RESE
T
HOR-OUT
RF_AGC
MNT_L-OUT
EXT_R-IN
EXT_V-IN
TV
-L
TV
-R
GAME_ID//FM_CE
GAME_DATA/FM_DAT
A
EY
E
DOWNLOAD
DOWNLOAD_CLK
DOWNLOAD_DATA
GAME_CLK/FM_CL
K
DVD-Cr/R_IN
REAR-V
MNT_V-OUT
HS
FBP
HS
VS
FRONT/SIDE-V
D
V
D-Cb/B_IN
FB
_
I
N
D
V
D-Cr/R_IN
D
V
D-Y/G_IN
F
B
_OUT
D
V
D-Cr/R
DV
D
-Y
/G
D
V
D-Cb/B
FRONT/SIDE_L
EHT
NICAM_RESET
VIF_IN2
FRONT-R
REAR-V
RESET
NICAM_RESET
FM_ON_OFF
DEGAUSS
ABNORMAL
SC
L
SD
A
A
V
1_ID/DOWNLOAD_DATA
D
E
GAUSS/FM_ON_OFF/USB_SW/DOWNLOAD
KEY
S
PK-L
S
PK-R
VIF_IN1
RF_AGC
FRONT/SIDE-V
SC
L
SD
A
EXT_V-IN
SD
A
SC
L
MNT_L-OUT
REAR-V
FRONT/SIDE-V
REAR-V
POWER/FM_C
E
EHT
PO
W
E
R
/F
M
_
C
E
VER-OUT
VS
ABNORMA
L
POWER/FM_CE
DVD-Y/G
DVD-Cr/R
DVD-Cb/B
SIF_OUT
PAL/NTSC
SIF_OUT
M
N
T_R-OUT
MNT_V-OUT
FB_OUT
TV-L
EXT_L-IN
EXT_R-IN
KE
Y
EXT_L-IN
ABL
IR
SCL
GID/SW/DL
POWER
TV-R
TV-L
TO DG COIL
P802
1
2
STV9326
IC301
1
2
3
4
5
6
7
D815
TVR06J
RL80 1
6920VB1001E
10 0
R906
1.6/2W (RF
)
FR401
30K(RN)
R311
0.1u F
C210
560
R524
3.9K
R510
100u F
10 V
C28
1N4148
D405 *
2.7K
R307
P6
330uF
10V
C108
18K
R108
0.01uF
C534
1N4148
D902
4.7K
R803
1N4148
D403
1.5K/0.5
W
R919
1N4148
D603
3.3K
R501
1.5/0.5W
R310
10 0
R562
470 p
C229*
75
R100*
47
R401
0.5W
1.0/0.5W
(RF)
R303
100K
R150
0.1uF
50 V
C527
P01
1
2
3
C607*
10uF
16V
T/ W
L212
100
R564
470P/500V
C303
P119
1
2
3
4
5
0.47uF
50V
C524
220
R516
P601
1
2
3
10 K
R60
0.01
C548*
1uF
50V
C760
0.01uF
C510
680
R72
1N4148
D604
T/W
R614
1000uF
16 V
C850
1K
R565
470p
C225*
1N4005
D302
T4AL250 V
F801
470P
C233
10 0
J554
1000uF
16 V
C826
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50V
C757
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W
(RP )
FR501
MONO
J636
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C518
C51
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C506
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R505
150
R404
180/2W
(RS)
R315
T/W
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10 0
J509
470p
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1
2
3
4
5
6
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3.3K
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1
2
3
100uF
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150-06 T
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1
2
3
4
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12K
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R922
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R801
75
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L80 2
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50 V
C415
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35 V
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125-022R
FB801
620/0.5W
R302 *
1.5K
R409
1.6 K
R18
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SW16
220
R69
T/ W
L901
470p
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2UH
FB201
1500P
C516
10 0
R506
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R17
560P/2KV
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Q402
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R804
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SK901
KIA78R09API
IC804
1
2
3
4
C56*
330P
VOL-
SW13
P602
1
2
3
4
75
R250
P02A
1
2
3
4
5
1/2W
150
R236
100K
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1000P/1KV
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C605
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18K(RN)
R301
18K/2W
(RS )
R912
C26
330u F
10 V
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C211
CH-(PR- )
SW15
T/ W
L224
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1
2
3
4
5
6
7
8
470K
R858
0. 5
P401
1
2
3
4
4.7uF
250 V
C901
10.5V
10uF
25 V
C407
9.1V
ZD502*
0.68uF
50 V
C312
680
R531
1.2/0.5W(SS CPT)*
FR932*
SW801(SUB:SW1801)
1N4148
D805
0.01uF
C767*
T/ W
L225
P902
1
2
3
4
5
6
7
8
9
C2330- Y
Q901
47uF
16 V
C308
75
R249
5.1 V
ZD804*
0.01uF
C764
4.7u F
50V
C242
(PHONE)
JA01
2
3
4
5
6
7
1
PC17L1
IC802
1
2
4
3
( RC)
8.2M/0.5
W
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51 0
R530
RU3AMV
D826
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R920
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0.01uF
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L902
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1
2
3
4
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35 V
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W
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C414
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R410
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Q301
103
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R705
4.7K
R58
0.1uF
C212
33K/0.5W
(RS)
R110
P101
1
2
3
75K
R706
VD801
TVR621D
P1
1K
R154
18K
R617
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MYL
C301
300
R513
36K(RN)
R518
10 0
51 0
R523
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10 V
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1/2W
150
R235
1N4148
D847
Q10
C3198Y
P801
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1
2
100u F
10 V
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10 V
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1
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3
4
5
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3
330
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1K
R615
36K
R552
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16V
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C30
0.01
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FB805*
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50 V
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10 0
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4.7 K
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C234
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W
R902
1.8K
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(RP )
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D824
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DB801
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DB802
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R519
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75
R251
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1N4148
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100K
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TV/VIDEO(MENU)
SW11
163-051F(3P)
TH801
TH802
163-054D(2P)
1.2/2W
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4.7K
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75
R211
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1000P
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43 K
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T/ W
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Q902
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1N4148
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Z111
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1
2
3
4
5
15K
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R305
EBJ3480670 1
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1
2
3
4
6
5
7
8
9
10
P902-2
1
2
3
4
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08/02/29
17:01:33
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R407
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47K
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( CK)
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68 0
R1
120
R555
39 0
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4.7K
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3.9K
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2.2K
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R313
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160V
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75
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4.7K
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2
3
4
5
6
7
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2
3
4
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330
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3.9K
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100K
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273/630 V
C406
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D407
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6.8K
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1
2
3
4
5
6
7
8
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R416
120 K
R456
5.1 K
R414
2.7K/2W
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R406
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R316
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0.068uF
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( RS)
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J117
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0.02/0.5W
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15K
R451
1K
R450
5.6K
R517
39K
R457
0.047u F
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473/630 V
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L404
334/400V
C402
1.6m H
L403
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R845
J811
T/W
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9.1 V
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Q801
C5343
3.9K
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10 V
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91K(RN)
R815
91K(RN)
R816
30K(RN)
R842
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0.022u F
C502
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9V
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9V
9V
S-Vcc
S-Vcc
5V_1
5V_1
5V_1
5V_1
5V_2
30 V
30V
J13
T/W
ST-5 V
ST-5V
ST-5V
ST-5V
ST-5V
100K
R622*
9V
62 0
R528
J227
T/W
5V_1
ST-5 V
50V
1uF
C648
50V
4.7uF
C676
22uF
50V
C681
LA72702
IC605
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1uF
50V
C666
1uF
50V
C638
1uF
50V
C670
2.2uF
50V
C657
47uF
10V
C691
10uF
50V
C675
10uF
50V
C672
4.7uF
50V
C656
4.7uF
50V
C654
22uF
50V
C682
4.7uF
50V
C642
0.1uF
C645
0.1uF
C678
100
R666
100
R665
4.7 K
R678
10UH
L604
5V_
1
JA01
(FULL SCART)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
100
R503
75
R203
10 0
R202
100K
R207
240K
R208
1uF
50V
C22
IC601
10 0
R542
10 0
R543
R250
T/W
100
R561
100uF
10V
C521
1uF
50V
C675
1uF
50V
C672
39 K
R539*
P551
B
@value
10
9
8
7
6
5
4
3
2
1
P551
A
@value
10
9
8
7
6
5
4
3
2
1
J568
T/ W
J222
T/W
J224
T/W
J225
T/W
J226
T/W
R415
T/W
330P
C688
330P
C687
2.2uF
50V
C683
0.1uF
C633
0.1uF
C631
560K
R667
5V_1
0.1uF
C673*
5V_1
0.01uF
C632*
0.01u F
C630*
47uF
10 V
C681
0.01uF
C684
0.01uF
C668*
47uF
10 V
C685*
0.01uF
C662*
0.01uF
C661
0.01uF
C680
0.01uF
C645*
0.01u F
C631
1.
5
V
3.3V
1.5V
0.1uF
C635
47uF
10 V
C670
0.1uF
C634
0.1u F
C665
0.1u F
C667
47uF
10 V
C666
T/W
R631
12pF
CC
C689
12pF
CC
C690
18.432MHz
X661
1M
R630
SIF
SIF
10k
R668
10 0
R666
100
R665
10K
R661*
10 K
R664*
330p
C653
1K
R662
1k
R633
4.7uF
50 V
C672
4700p
C687
4.7uF
50V
C675
4700p
C688
1k
R632
Z602
4.5MHz
1
3
2
J721*
T/W
P211A
1
2
3
4
IC81 0
W6553A(MONO)
W6554A(STEREO)
1
2
3
4
5
6
7
220
1/2 W
R838
6.8K
R807
30
R810
J842
T/W
D845
UF4005
22uF
50 V
C840
0.1u F
50 V
C841
0.01uF
MYL
C852
1000pF
1.6KV
C817
221/2KV
C859*
?
C807*
?
C808*
125-022K
FB810
125-022K
FB844
J 843
T/W
75 K
R839
39K(RN)
R806
3300p F
MYL
C842
15 V
ZD846
5.6K
R808
IC501
LV762xx
EXT-R_IN
1
EXT-L_IN
2
INT-V_IN
3
VCC[5V]
4
Video/Chroma/Vertical
EXT-V_IN
5
NC/MONI-R
6
YC-Y
7
YC-C[FB_IN]
8
1CHIP_VDD[3.3V]
9
DVD-Y[G_IN]
10
CR_IN[R_IN]
11
4.43MHz
12
CB_IN[B_IN]
13
APC-FILTER
14
Chroma
FSC[EHT]
15
EW
16
VEROUT
17
V-RAMP
18
VCO_IREF
19
HOR_VCC[5V]
20
AFC-FILTER
21
Horizontal
HOR_OUT
22
FBP
23
CPU_VDD[ST-5V]
24
FILT
25
CPU_VDD2
26
P00
27
P01
28
P02
29
P13
30
P14
31
P15
32
FM_OUT[MONI-L]
64
F
M
-FILTER
63
IF_VCC[5V]
62
VIDEO_OUT/SVO
61
V
IF_AGC
60
APC-FILTER
59
RF_AGC
58
VI
F
_
IN
1
57
VI
F
_
IN
2
56
IF_GND
55
S
IF_OUT
54
APC-FILTER
53
SI
F
SIF_IN
52
S
PK-R_OUT
51
S
PK-L_OUT
50
RGB_VCC[9.0V]
49
R
_
OUT
48
G
_
OUT
47
B
_
OUT
46
AB
L
45
1
CHIP_GND
44
C
PU_GND
43
F
ILTSLC
42
R
ESET
41
P07
40
P06
39
P05
38
P04
37
P03
36
P17
35
P16
34
P11
33
4.7u F
50 V
C280
??
C845*
TU101
6700MF0018A(CIS)
6700MF0018B(PAL)
6700NFNS11E(KOREA)
6700NFNS11F(NTSC FR TYPE )
6700NFNS11G(NTSC PHONE TYPE)
6700NFNS11H(NTSC DIN TYPE)
100u F
10 V
C636
100uF
10V
C615
1.5V REG.
IC606
1
2
3
3.3V
1.5 V
10 K
R541
2200P/500 V
CK
C421
330/0.5W
R441
J403
T/W
0.1u F
50 V
C677
5V
_
2
5V_1
5V_1
5V_1
T/W
R853
J41 3
T/ W
0.022uF
50 V
C574
0.01u F
?
1000 p
C549*
330 K
R538*
10 0
R511
1.2UH
L528
5.1M
R684
2.2M
R654
0.1uF
C664
C114*
0.1uF
J83 0
T/ W
J402
T/W
J 303
T/ W
J 306
T/W
J30 1
T/ W
J 401
T/W
60uH
L405 *
?
L406 *
J 404*
T/W
J81 4
T/ W
0.1uF
275V
C816
123 A
FB817*
?
C839
J81 0
T/ W
6322A00030 A
TH803*
J 906 T/ W
J903
T/ W
J 905
T/W
1N4003
D903
J 907
T/ W
J620
T/W
?
C627*
J607
T/W
30P
C552*
IC651
LC75024E
A
V
DD33
1
A
OUT
R
2
AVS
S
3
LRVREF
4
AVDD33
5
NC
6
AOUTL
7
AVDD33
8
VRT
9
VCO
M
10
VRB
11
SI
F
2
12
AVS
S
13
A
V
DD33
14
AVDD33
15
A
VSS
16
AVDD15
17
A
VSS
18
XVS
S
19
XI
N
20
XOU
T
21
AVDD33
42
MRVREF
41
AVSS
40
NC
39
AVDD33
38
TESTB1
37
TESTB0
36
TEST
35
NC
34
NC
33
NC
32
NC
31
IOVSS
30
IOVDD3
3
29
RSTB
28
SD
A
27
SC
L
26
SA
25
DVDD15
24
DVSS
23
XVDD33
22
5V_1
J720
T/W
J705
T/W
J281
T/W
J704
T/W
T/W
J673
T/W
J703
T/W
J641
T/W
J652
T/W
J642
1K
R633
1K
R632
T/W
J651
T/W
J643
T/W
J653
T/W
J672
J527
T/W
T/W
R40
T/W
J562
J519
T/W
T/W
J50 8
J112
T/W
T/W
J111
10UH
L663
J633*
T/ W
10UH
L66 2
T/ W
R654
T/W
J645
T/ W
J641
T/W
J648
T/W
J642
T/ W
J647
47uF
10V
C650
J2 2
T/ W
J23
T/ W
T/ W
J525
J55 5
T/ W
J54 1
T/ W
T/W
J109
4.7uH
L503
T/W
J101
T/W
J558
T/W
J552
T/W
J201
T/ W
J557
T/ W
J507
0.01uF
C562*
0.01uF
C563*
0.01uF
C564*
0.01 8
MYL
C542*
0.1
(PP)
C545
?
R521*
T/W
J524
T/W
J560
9.1V
ZD407*
T/W
J 513
T/W
J 528
T/W
J 532
T/W
J 504
4.7 K
R566
T/ W
J706
T/W
J707
T/ W
R701
T/W
J521
T/ W
R704
T/W
J503
T/W
J506
T/ W
J2 4
T/ W
J522
T/W
J55 9
0.01uF
C29
T/ W
J542
T/ W
J702
T/W
J 625
T/ W
J624
T/ W
J 515
T/ W
J512
T/ W
J544
T/W
J546
J535
T/ W
0.01u F
C528*
T/ W
J537
T/ W
J543
T/W
J520
T/W
J510
T/W
J567
J286
T/ W
J564
T/ W
J520
T/ W
J563
T/ W
T/ W
C283
J285
T/ W
T/ W
J282
T/W
J292
T/W
J 287
T/ W
J288
T/ W
J549
J637
T/W
T/ W
J 289
T/W
J 290
J553
T/W
T/ W
R536
T/ W
J28 3
T/ W
J284
J291
T/W
J286
T/W
10 0
J53 4
T/ W
R567
T/ W
J281
T/ W
R711
J534
T/W
J63 8
T/ W
J646
T/ W
100uF
10 V
C857*
3.3V REG.
IC603
1
2
3
J551
T/ W
J804
T/ W
J70 9
T/W
510
R247
A1266
Q241
T/ W
J280
T/W
J687
T/ W
J672
T/W
J550
T/ W
R780
T/W
J565*
T/W
J818
0.1uF
C283
10uH
L501
10 0
J511
T/W
J54 0
J55 6
T/ W
J52 6
T/ W
47 K
R318
5V_1
J81 9
T/W
J634
T/ W
J 523
T/W
J 664 *
T/ W
33/2 W
( RS)
R610 *
100uF
10V
C699*
J665
T/W
5.1V
ZD601*
0.33uF
C630
100pF
C639
T/ W
J646
10UH
L66 5
T/W
J650
J647
T/W
3.3V
47uF
10 V
C691*
47uF
10V
C692*
10UH
L664
125-022R
FB601
T/W
J110
J3
T/W
2.7K/2W
(RS )
R405
33pF/
10pF
C520
33pF
C503
33pF
C546
75 K
R222
75 K
R221
T/W
R223
J 826
T/ W
J 626
T/W
J63 5
T/ W
J 601
T/W
J102 *
T/ W
0.01uF
C105
390
R105
0.01uF
C104
22
R104
1.2K
R103
100
R101
0.82
L102
0.01uF
C115
C3197
Q101
3.6K
R102
47uF
16V
C111
9V
J40 5
T/W
TVR06J
D304
470uF
10V
C525
C102M
Q502
C102M
Q111
CP12
0.01uF
16V
CP13
0.01uF
16V
LP05
10u H
LP03
10uH
CP07
0.01u F
50 V
RP10
1K
1/10 W
5%
CP20
47uF
10 V
RP09
1K
1/10W
5%
ICP03
S1117-18PIC
1
GND
2
OUTPUT
3 INPUT
P551B
3
5238-1010
1
2
3
4
5
6
7
8
9
10
CP30
47u F
10 V
LP04
10uH
CP04
47pF
50V
CP34
0.1u F
50 V
RP14 10
1/10W 5%
RP1
3
10
1/10W 5%
CP19
0.01uF
50V
CP25
47uF
10V
RP28
10
1/10W
5%
QP02
2SC3875S
E
B
C
ICP04
KA75270Z
2
G
3 O
1
I
QP01
2SC3875S
E
B
C
CP33
0.1uF
50V
CP08
47uF
10 V
CP31
0.01uF
50 V
CP18
47pF
50V
LP06
10uH
CP35
0.1u F
50 V
RP11 100
1/10W 5%
CP10
330uF
10V
CP05
47pF
50 V
35238-1010
P552B
1
2
3
4
5
6
7
8
9
10
CP29
0.01uF
50 V
CP27
0.01uF
50V
RP30
1K
1/10W
5%
CP01
22pF
50V
RP03
100
5%
1/6W
CP23
0.01uF
50V
RP31
22K
1/10W
5%
CP28
47uF
10V
ICP02
S1117-33PIC
1
GND
2
OUTPUT
3 I NPUT
RP01
220
1/6 W
5%
CP11
0.01uF
16V
RP17
10
1/10W
5%
RP
1
2
10
1
/10W
5%
CP06
47pF
50 V
XP01
20.25MH z
RP15
10 K
1/10 W
5%
ICP01
PVP9390A-QG-A1
1
XOUT
2
XI
N
3
VSS18_
1
4
VDD18_
1
5
GPO0
6
SE
L
7
OUT3
8
OUT2
9
OUT1
10
VSS33DA
C
11
VDD33DA
C
12
FSW
13
IN 3
14
IN 2
15
IN 1
16
VDD18ADC
17
VSS18ADC
18
CVBS1
19
TEST
20
CVBS2
21
TM
22
CVBS3
23
CVBS
4
24
VSS33ADC
25
VDD33ADC
26
YIN
27
UIN
28
VIN
29
RESE
T
30
VDD18_
2
31
VSS18_
2
32
POR
33
GPO2
34
I2C1
35
I2C2
36
SDA
37
SCL
38
INTR
39
VDD33PAD
40
VSS33PAD
41
VSP
42
HSP
43
GPO1
44
CLKOUT
CP32
47uF
10 V
CP16
47pF
50V
RP08
10 0
1/10 W
5%
CP02
22pF
50V
LP02
10uH
CP17
47pF
50V
CP21
47uF
10V
RP02
220
1/6W
5%
RP05
1K
1/10W
5%
CP03
47pF
50V
RP04
10 0
1/6W
5%
LP01
10uH
RP06 100
1/6W 5%
CP36
0.1uF
50 V
RP34
1K
1/10W
5%
RP33
1K
1/10W
5%
RP07
22 K
1/10W
5%
0. 1
MYL
C515*
100p
C245*
0.1uF
C529
R904
R913
C2330- Y
Q904
R706
T/W
R711
T/W
R317*
J 864
T/ W
J84 1
T/ W
J 825
T/ W
J82 2
T/ W
J82 0
T/W
J812
T/W
T803
61709MC016D
J 813
T/ W
J 801
T/ W
J80 2
T/W
J 803
T/ W
J80 8
T/W
J80 6
T/ W
J807
T/W
J809
T/W
T/W
J71 2
J708
T/W
T/W
J690
T/W
J698
T/W
J66 7
J 656
T/W
J602
T/ W
J62 1
T/ W
J62
2
T/W
J623
ST
J60 5
T/ W
J108
T/ W
J606
J604
T/W
T/W
J609
10 0
J51 6
T/ W
J518
J409
T/W
J22 0
T/W
J22 1
T/W
J22 3
T/W
J15 1
J6
LA72730
IC751
LI
N
-1
1
LI
N
-2
2
LI
N
-3
3
RI
N
-1
4
RI
N
-2
5
RI
N
-3
6
VI
N
-1
7
VCC
8
VI
N
-2
9
GND
10
VI
N
-
3
11
R_MONITO
R
12
L_MONITOR
16
SCL
13
SDA
14
NC
15
ALC_FIL
T
17
VIDEO_OUT
18
AUDIO_R_OUT
19
AUDIO_L_OUT
20
VIN-T
V
21
BIAS_FILTER
22
RIN-T
V
23
LIN-T
V
24
A1275Y
Q103
30K
R114
C102M
Q104
T/W
J203
J502
T/W
KIA78R05AP I
IC806
1
2
3
4
J829
T/ W
J82 8
T/ W
T/W
R811
2200u F
25 V
C838
TVR06J
D806
125-022 R
FB808
470P/500 V
C836
CK
180/2W
( RS)
R314
T/ W
J539
100pF
C532
1K
R606
T/ W
J29 3
9V
TH402*
300oh m
TH401*
300oh m
SCREEN
5V
510(14")
FOCU
S
*
180V
*
26 V
GAME/FM DATA
V2
D
GAME ID/FM CE
L2
G
G
G
R2
Option
MONO:330/0.5W
NC
GND
W/O HP
SDA
11
SCL
12
CPT BOARD
MON
O
<L-IN>
10
<R-IN>
<V-OUT>
Headphone
<L-OUT>
14
<B+ : 115V>
STEREO:510/0.5 W
13
<MONO 4PIN OPT.>
OCP
GND
180V
HEATER
MONO OPTION
9V
B
EBY41778501
G
* : OPTION
R
2.2/0.5W(LG CPT)
H-GND
<SCHEMATIC DIAGRAM OF CW-81A>
'07.05.08
CIRCUIT DIAGRAM
CW-81A CHASSIS
IN
(CK)
FOCUS
180V
SCREEN
COLD
AFC
HOT
C
ABL
C3229(21"
)
26 V
D833*
<R-OUT>
HEATER
<V-IN>
COL
12 V
C3229(21")
BK
OUT
GK
<EYE OPT. >
HEATER
RK
GND
B
H-GND
DEG OPTION
RU2AMV
HEATER
C3229(21" )
HOT
V-NECK
9V
270P(14" )
B
VIDEO/NC
390P(14")
G
GN
D
390P(14")
R
AUDIO/FM ON_OFF
510(14")
ANODE(HV)
GAME/FM CLK/IR
510(14")
KEY
A
VERSION 1.11 2008.02.26
PO
W
ER
HEADPHONE
R
V
(MONO)
L
PALNTSC
HV
INNER
112V
??
3.00V
CH-/PR-
VOLTAGE
0.81 V
0V
2.48 V
<KEY MATRIX>
CH+/PR+
1.88V
MENU/OK
VOL+/VOL+
T-SOUND
NT/PAL
T-PICTURE
TV_VIDEO/MENU 1.34V
??
VOL-/VOL-
<DVD_R-IN>
<DVD_L-IN>
LA42101 (10W MONO MAX)
LA42102N(15W+15W MAX)
<PAL>
ABN
NORMAL
<NICAM/A2 OPT.>
<DOWNLOAD OPT.>
BTSC
<AV STEREO OPT.>
<NTSC>
W/TEXT
W/O TEXT
NTSC
PAL
NICAM/A2
<SIDE A/V OPT>.
<MONO
>
<STEREO>
<MONO OPT.>
<MONO OPT.>
<MONO 4P,W/SCART OPT.>
<W/O SCART,PIP>
<W/SCART,PIP >
<GAME, FM TX OPT.>
<STEREO,W/O SCART OPT.>
<W/O PIP>
FB-IN
Cb-IN
Y-IN
Cr-IN
GND
5V
R-OUT
G-OUT
B-OUT
FB-OUT
SD
A
SC
L
VS
HS
GN
D
GN
D
GN
D
TV_VIDEO
AV
1
AV2
<PIP OPT.>
<W/PIP OPT.>
<W/PIP OPT.>
<IC VERSION>
BPF
Slave Address=0x38
<W/O BPF OPT.>
<W/FM TX OPT.>
MNT_R
MNT_L
GND
GND
D
NC
S/GND
VI N
SS/AD J
FB
BD
MONO :IC810(W6553A), R806(RN ???)
STEREO:IC810(W6554A), R806(RN 39K)
MODE
INPUT
VIN1
REAR
VIN2
FRONT/SIDE
VIN3
GAM
E
VIN-T V RF
MONO LV76210
LV76220
LV76230
PAL/NT
SOUNDIC
SYSTEM
PAL/NT/SECAM
COMBEWTXT Surround
A2+NICAM BTSC
LV76211
LV76221
LV76231
LV76233
LV76212
LV76222
LV76213
LV76232
LV76223
LC75024
LA72702N
AV-ST
RF-ST
IC
*ASSEMBLE SUSOC(AV/ST)IC WITH RF/ST IC FOR RF-ST MODEL
PAL/NT/SECAM
PAL/NT/SECAM
PAL/NT
PAL/NT/SECAM
PAL/NT/SECAM
PAL/NT
PAL/NT/SECAM
PAL/NT
PAL/NT/SECAM
PAL/NT/SECAM
A2/NICAM
BTSC
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
LA42102L(10W+10W MAX)
<STEREO OPT.>
<SS/ULTRA OPT. >
<FLAT,Normal OPT.
>
<SS/ULTRA OPT.>
<FLAT,Normal OPT.>
<SS OPT. >
<ULTRA OPT. >
B+
<MONO/AV ST OPT. >
GN
D
GN
D
IR
KEY
POWE
R
ST-5
V
GND
EYE
GND
9V
NC
<MONO/AV ST OPT. >
<W/O RELAY>
<W/O NICAM>
<NICAM>
W/O ST-BY 1W
W/ NICA M
W/O ST-BY 1W
B+
S-Vcc
10.5 V
???V
GND
S-GND
GND
COLD
GND
<RF ST>
<MONO/
AV ST OPT.>
<MONO/AV ST>
<PRE AMP OPT.>
<MUTE OPT.>
Slave Address=0x80
VCD Slave Address=0xBA
EEPROM Slave Address=0xA0
TUNER Slave Address=0xC0
Slave Address=0x92
AV
1
GN
D
AV
2
GN
D
GN
D
RF
SC
L
SD
L
VS
HS
FB
0
RI
5V
RO
BO
GO
BI
GN
D
FB
I
GI
CPT BOARD
PIP BOARD
NARROW RANGE OPT.
<W/O ST-BY 1W OPT>
<W/ST-BY 1W OPT>
W/ST-BY 1W
=>Initial model: 21"ULTRA S/S(21FU1R)
.
