Circuit Diagrams; Mpeg Circuit Diagram - LG DP450G Service Manual

CIRCUIT DIAGRAMS

1. MPEG CIRCUIT DIAGRAM

V18
DV33
L201 L201 L202 L202
FB(50) FB(50) RFVDD3
RFVDD3
CE202 CE202 + + C218 C218
100uF/6.3v 100uF/6.3v
0.1uF 0.1uF
L204 L204 L206 L206
FB(50) FB(50) AVDD33
AVDD33
C206 C206
CE203 CE203 + + 0.1uF 0.1uF
100uF/6.3v 100uF/6.3v
DV33
R205 R205
AADVDD
AADVDD
10 10 + + CE211 CE211
C210 C210 220uF/6.3v 220uF/6.3v
6800pF 6800pF
3.3V L205 L205 DV33
FB(50) FB(50) C235 C235
+ CE207 + CE207
0.1uF 0.1uF 47uF/6.3v 47uF/6.3v
U202 U202
AP1117EL-13 AP1117EL-13 L207 L207 V18
3.3V SOT223 SOT223
FB(1206) FB(1206)
4
TAB
3 2
IN OUT
R223 R223 C236 C236 + CE208 + CE208
680 680 0.1uF 0.1uF 100uF/6.3V 100uF/6.3V
+ CE209 + CE209
100uF/6.3V 100uF/6.3V
R230 R230 330 330
R219 R219
10K 10K
DV33
3.3V
DV33
L213 L213
10uH 10uH
Core3.3V
R226 R226 R225 R225
15K 15K 3.3K 3.3K
R224 R224
3.3K 3.3K C C
B B 3904 3904
1
Q201 Q201
E E
R235 R235
4.7K 4.7K
L214 L214
10uH 10uH
DV33 47uH/NC 47uH/NC L208 L208
ADACVDD
ADACVDD
C233 C233
R207 R207 10 10 + + CE212 CE212 6800pF 6800pF
220uF/6.3v 220uF/6.3v
FB(50) FB(50) RFV18-1
RFV18-1
47uH 47uH L210 L210
C205 C205 APLLVDD3
APLLVDD3
0.1uF 0.1uF
DACVDD3
DACVDD3
L203 L203 FB(50) FB(50)
FB(50) FB(50) RFV18-2 CE205 CE205 + + C221 C221 C226 C226 C201 C201
RFV18-2
100uF/6.3V 100uF/6.3V
C213 C213 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
0.1uF 0.1uF
C209 C209
120pF/NC 120pF/NC
C220 C220
CE201 CE201
+ +
100uF/6.3V 100uF/6.3V
RFV18-1
R234 0R/NC R234 0R/NC
OP+
OPO R202 R202 0R 0R
OP- R203 R203 0R 0R
U201 U201
C R228 R228 0 0 1
RFA
B R208 R208 0 0
2
RFB
A
R222 R222 0 0 3
RFC
D R206 R206 0 0 4
RFD
F R209 R209 0 0
5
RFE
E R210 R210 0 0 6
RFF
RFV18-2
RFV18-2 7
AVDD18_2
RFVDD3
8
RFVDD3 AVDD33_1
XI 9
XTALI
XO
10
XTALO
11
AGND33
V20 12
V20
V1P4 MT1389LP MT1389LP
13
V14
R211 R211 15K 15K 14
REXT
MDI1 R259 R259 0 0 15
MDI1
16
MDI2
LDO1 R232 R232 0 0 17
LDO1
LDO2 R249 R249 2K 2K
18
MDILDO2
AVDD33
19
AVDD33 AVDD33_2
DMO 20
DMO
FMO
21
FMO
STBY
22
TRAY_OPEN
IOA 23
TRAY_CLOSE
TRO
24
TRO
FOO 25
FOO
LIMIT R212 R212 0 0 FG 26
PG/GPIO2
27
USB_DP
OPO R233 R233 28
USB_DM
0R/NC 0R/NC
29
VDD33_USB
30
VSS33_USB
DV33 31
PAD_VRT
32
VDD18_USB
V18
DVD_KEY
RN201 10Kx4 RN201 10Kx4
1 8
DVD_KEY3 C250 C250 DV33 V18
2 7
DVD_KEY2
3 6
4 5 DVD_KEY1 18P 18P
EMC
10uh 10uh
C248 C248 C240 C240 C237 C237 L215 L215
EMC
56P 56P 56P 56P 56P 56P
EMC
FOSO FOSO FOSO FOSO FOSO FOSO
C255 C255 C239 C239 TRSO TRSO TRSO TRSO TRSO TRSO
FMSO FMSO FMSO FMSO
AVLC18S02003 AVLC18S02003 1uF 1uF DMSO DMSO DMSO DMSO DMSO DMSO
R236 R236 D201 D201
100K 100K 1N4148/NC 1N4148/NC
L219 L219 L220 L220
URST URST#
1K 1K 10uh 10uh
C C
+ +
3904 3904
B B CE213 CE213
1
Q202 Q202 22uF/16V-NC 22uF/16V-NC
E E
L209 L209
2.7uH/NC 2.7uH/NC
V20 V1P4 R201 R201 100K 100K
C203 C203 + + CE204 CE204 C225 C225 + + CE206 CE206 1000pF/NC 1000pF/NC Y201 Y201
10uF/16V 10uF/16V 10uF/16V 10uF/16V C204 C204 27M 27M
0.1uF 0.1uF 0.1uF 0.1uF XI R268 R268 0 0 1 2
3
C212 C212 C232 C232
27pF 27pF 27pF 27pF
RF Reference
CRYSTAL CIRCUIT
C241 C241
180pF 180pF
CBV160808A471B CBV160808A471B
R213 R213
EMI
CPH1
100 R 100 R C244 C244
C223 C223 R204 R204
33pF/NC 33pF/NC
0.1uF 0.1uF 560R 1% 560R 1%
SW212 SW212
1 SW201 SW201 4
DV33
V18
2 3
TRIN C234 C234
0.1uF 0.1uF
96 OEV
VOE/GPIO15
CKV R218 R218
95
VCK/GPIO14
STVL
94 10K 10K
VSTU/GPIO13
93 LCD_CTRL
SPDIF/GPIO12
TRIN
92
HSTR/11 DV33
91 TXD
LR/GPIO10
90
DVDD18
RXD L211 L211
89
UD/GPIO9
88
VSTD/GPIO8
87
GPIO7/CKE
MA3
86
RA3
85 MA2
RA2
84
DVDD33
MA1
83
RA1
82 MA0
RA0
MA10
81
RA10
80 BA1
BA1
79
DVSS18
BA0
78
BA0
77 RAS#
RAS#
CAS#
76
CAS#
WE#
75
RWE#
74 MA4
RA4
MA5
73
RA5
72 MA6
RA6
71 MA7
RA7
MA8
70
RA8
69 MA9
RA9
68
DVDD33
MA11
67
RA11
66 DCLK
RCLK
DQM1
65
DQM1
MT1389L/SMD MT1389L/SMD
LQFP-128 LQFP-128
DV33
EMC
C231 C231 C215 C215 C224 C224 C251 C251 C252 C252
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
V18
IC
C238 C238 C227 C227 C219 C219
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
R214 R214 27K 27K FOO
R221 R221 27K 27K TRO
R216 R216 15K 15K FMO
R229 R229 10K 10K DMO
C202 C202 C229 C229 C216 C216 C207 C207
330pF 330pF 330pF 330pF 0.1uF 0.1uF 0.015uF 0.015uF
V1P4
RS-232
DV33
1
RXD
2
TXD
3
4
CON4_2.0MM_DIP CON4_2.0MM_DIP
J201 J201
3-27 3-28
SF_CS
SF_CS 3
SF_DO
SF_DO 3
SF_DI
SF_DI 3
S-FLASH
SF_CK
SF_CK 3
R269 R269
0 0 XO VCOMO
VCOMO 7
STVL
STVL 7
CKV
CKV 7
OEV
OEV 7
OEH
OEH 7
LCD STHL
STHL 7
CPH1
CPH1 7
89L_R
89L_R 7
89L_G
89L_G 7
89L_B
89L_B 7
POWER
CONTRL
3.3V
3.3V 3.4,7
CVBS
CVBS 5
AL
AL 5
AR
AR 5
IR_OUT
IR_OUT 6
BA0
BA0 3
BA1
BA1 3
FLASH
MA[0..11] MA[0..11] 3
DQ[0..15]
DQ[0..15] 3
MEMORY
DQM[0..1]
DQM[0..1] 3
DCLK
DCLK 3
CAS#
CAS# 3
RAS#
RAS# 3
WE#
WE# 3
GND
GND 3,4,5,6,7
LCD_CTRL LCD_CTRL 5
AUDIO INTERFACE
V1P4
V1P4 4
V20
V20 4
OPO
OPO 4
OP-
OP- 4
OP+
OP+ 4
LIMIT
LIMIT 4
IOA
IOA 4
LDO1
LDO1 4
LDO2
LDO2 4
A
A 4
B
B 4
C
C 4
D
D 4
E
E 4
F
F 4
RFO
RFO 4
MDI1
MDI1 4
STBY
STBY 4
TRSO
TRSO 4
DMSO
DMSO 4
FOSO
FOSO 4
FMSO
FMSO 4
SERVO I/F
DVD_KEY1
DVD_KEY1 7
DVD_KEY2
DVD_KEY2 7
DVD_KEY3
DVD_KEY3 7
DVD_SLEEP
DVD_SLEEP 7