LG DK763X, Service Manual

Page: 33 / 51

3-22
BLOCK DIAGRAMS
1. OVERALL BLOCK DIAGRAM
M
M
DISC
SP
INDLE
MOT
O
R
LO
A
D
ING
MO
T
O
R
DECK MECHANISM
D
V
D:RF0,
A
,B,C,
D
CD:RF0,
A
,B,C,
D,
E,F
PIC
K
UP
IC5
0
2
M
X
29
LV160
FL
A
S
H R
O
M
A
[00:
19] PCE
#
PR
D
#
PW
R
#
DQ[00:15]
CV
BS
Y
[1:
6]
Y
A
C
90V~240V
50H
Z/60H
z
ST
BY
,T
RCL
O
S
E
27
M
H
z
X-T
A
L
IC
506
K
S
24
C021
CS
EE
PRO
M
IC
603
M
C
4580
OP-A
M
P
LOAD+,LOAD-
F+,F-,T+,T-
SP+,SP-
SLED
(FEEDING)
MO
T
O
R
SL+,SL-
IC
201
A
M
5869S
MOTOR
DRIVER
M
3.3VA
3.3VA
3.3VA
/1
.8VA
IC6
0
1
MM16
9
2
VIDE
O
BUFFER
AS
P
D
IF
C
O
A
X
OP
T
IC
A
L
L
D
01,
L
D02, I
O
A
,
V2.0
VCC
/+
8
V
LI
M
IT
TROU
T,
T
R
IN
TROPE
N,T
R
S
O
,FOS
O,D
M
S
O
,F
M
S
O
AD
[0
:7
]
V1
P4
MDI1
AP
C
AU
D
IO
_
L
CN
50
3
RS2
3
2
TX
D
RX
D
SCL
3.3VA
IC5
0
3
M
1
2L64164
A
SDR
A
M
M
A
[00:
10
]
BA
0
DCLK DCK
E
CS
#
RA
S
#
CA
S
#
WE
#
DQM[0:1]
MA11,BA1
SDA
IC501
MT1389E
DSP/MPEG/RF
+
12V
5V
3.3VA
R
L
POWER
BOARD
+8V MGN
D
+5V
+12V
AG
N
D
3.3V
A
DGND PW
R_CTL
B/
Pb
R/
P
r
G/
Y
PI
CK
S
EL
IC
508
CS5
3
3
1
A
IC5
0
9
KA
741
KA
RA
O
K
E
JA
C
K
AC
L
K AB CLK AL
R
CK
AM
D
A
T
R L
MI
C
_
ON
MI
C
_
IN
KARAOKE OP
TION
MU
T
E
AU
D
IO
_
R
C
MUTE
IC301
6CH
DA
C
IC302
M
C
4580
OP-A
M
P
+1
2
V
IC303
M
C
4580
OP-A
M
P
+
12V
IC304
M
C
4580
OP-A
M
P
+1
2
V
+3
.3
V
,5
V
M
M
M
M
M
M
AD
A
T
A
1
AD
A
T
A
2
AD
A
T
A
3
IC9
0
1
PT6
9
6
1
+5
V
TIMER
VC
R
RE
C
DV
D
[P
]
PM
TV
G1~ G6
S1~S 10
CLK
DIN
DOUT
Pow
e
r Inp
u
t
Display
(cl
ock type)
FL
FR
CE
N
T
E
R
WOO
F
E
R
R/L
R/R
5.1 CH. OPTION
MT1389E