LG DP270B, Service Manual

Page: 35 / 53

3-28
BLOCK DIAGRAMS
1. OVERALL BLOCK DIAGRAM
SDI
A-5
V
SL+, SL-
AM589
8N
MO
TOR DRI
VER
ST
A
N
D
B
Y
PW
M
AD_PR
P+
5V
A
1.8V
BA
T_OU
T
RE
D
,
GRE
E
N
AOUT_
L/R
AD_K
1,
AD_K
2
CH
_SC
S,
SCLK
,
SDO
64MB
it
SDRA
M
MA[0..11], BA[0..1],
CS#, CAS#,R AS#,
WE#,DQM[0..1]
DCLK ,DCK E
8/16/32MB
it
FL
ASH
MEM
ORY
AD[0..7]
A[0..21]
PCE#,P RD#,PW R#
RE
M
O
C
O
N
RE
CE
IV
E
R
Pow
er,
Ch
ar
ge
LE
D
3.3V
3.3V
OPO
V1
P
4,FOSO,TRSO,FMSO,DMSO
,STB
Y
US
BP
,USB
M
LC
D
PANE
L
DQ[0..15]
A_MUT
E
_S
W
U
SB JAC
K
A+5V
XI,X
O
27MHz
LDO1,L
DO2,IOA,V20
M
DI
SC
SP
IN
DLE
MOTOR
DECK ME CHAN ISM
PIC
K
UP
SL
E
D
MOTO
R
M
F+,
F-
,
T+,
T-
SP
+
,
SP
-
A,B,C,D,E,F,
RFO,MDI1/2
LIMIT
NJM45
80M
A±
5V
PT2
30
3
A+5V
SP
_L
/R
+
/-
SP
_L
/R
-
OP-,OP+ TRO
PEN
M5V
ASP
DI
F
CM1117
VCOMO,CPH 1/2/3,
MOD,89P_R /G/B,
STHL/R, ST VL/R,
OEH/V,LNR, UN D,
CKV ,PW RCTL _LCD
AV
IN
/OU
T
SPK H/
P
COAX
IAL
BH1
418F
V
FM
+3.
3V
FM_SC
S,
SC
LK
,S
D
O
16KBi
t
EEP
RO
M
3.3V
SCL
SDA
BATTERY
SI43
35
DC
_I
N
DC-D
C BLOC
K1
DC-D
C BLOC
K2
3.3V
M5V
2F23
01
P
A+5V LD_
5V
FD
S4
435
TP
S6
04
00
A+5V
SP
_M
UTE
ML/
R
_OUT
3.3V/B
AT_OU
T
AD_
T
AD_U
P-
AD_
I
KE
Y
IR
GT6319
5V
A
1.8V/3.3V
VOLUME
/M
_R
ESE
T
FM
_M
U
T
E
2F23
01
P
3.3V
FM+3.3
V
CV
BS
FSAV
33
0
CV
BS_
IN
A+5V
VID
EO_IO_CT
L
MT1389
P
MPEG
/AV
_J
A
C
K_I
N
Sy
stem & AV Part