Circuit Diagrams; Mpeg Circuit Diagram - LG DP271, DP271B, LPA-837 Service Manual

CIRCUIT DIAGRAMS

1. MPEG CIRCUIT DIAGRAM

89P_3V3 RFV33
C231 C231
0.1uF 0.1uF
TP206 TP206
TP210 TP210
TP211 TP211
TP207 TP207
TP212 TP212
1.8V
L207 L207
RFV18
FB FB
C280 C280
0.1uF 0.1uF
L208 L208
AVDD18_VPLL
FB FB C243 C243
0.1uF 0.1uF
FG R223 R223 0 0
1.8V
3.3V
L212 L212 FB FB
+ CE208 + CE208 + CE209 + CE209 C253 C253 C254 C254 C255 C255
47uF/10V 47uF/10V 100uF/10V 100uF/10V 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
Chip Decoupling Cap.
R230 R230 100K 100K
3.3V
XO X201 X201 XI
27MHz 27MHz
C274 C274 C275 C275
33pF 33pF 33pF 33pF
Crystal
L201 L201
RFVDD3
FB FB
C204 C204 C205 C205
0.01uF 0.01uF 2200pF 2200pF
R206 R206
PLLVDD3
6.8 6.8
C218 C218 CE204 CE204
+ +
0.1uF 0.1uF 100uF/6.3V 100uF/6.3V
C226 C226
V2P8 V20 V1P4 0.1uF 0.1uF
+ + C232 C232 + + C233 C233 + +
CE205 CE205 CE206 CE206 CE207 CE207
47uF/6.3V 47uF/6.3V 0.1uF 0.1uF 47uF/6.3V 47uF/6.3V 0.1uF 0.1uF 47uF/6.3V 47uF/6.3V
1
AGND
B C238 1uF C238 1uF
2
DVDA
A C239 1uF C239 1uF
3
DVDB
D C240 C240 1uF 1uF
4
DVDC
C C234 1uF C234 1uF
5
DVDD
RFO
C235 1uF C235 1uF 6
DVDRFIP
C236 120pF/NC C236 120pF/NC C
7
MA
D 8
MB
A
9
MC
B 10
MD
SUBA
11
TP213 TP213 SA
SUBB 12
TP214 TP214
SB
E
13
TP208 TP208 SC / TNI
F 14
TP215 TP215 SD / TPI
MDI1 R208 R208 2K 2K
15
TP209 TP209 MDI1
MDI2 R209 R209 2K 2K 16
TP225 TP225 MDI2
LDO2 R218 R218 0 0
17
LDO2
LDO1 R222 R222 0 0 18
LDO1
RFV33
19
SVDD3
20
TP216 TP216 CSO/RFOP
C241 C241
21
TP217 TP217
RFLVL / RFON
22
SGND
V2P8
0.1uF 0.1uF 23
TP218 TP218
V2REFO
V20
24
TP219 TP219 V20
V1P4
25
TP220 TP220
VREFO
26
TP221 TP221 FEO
27
TP222 TP222
TEO
28
TP223 TP223 TEZISLV
C244 C244 C245 C245 OPO 29
OP_OUT
OP-
30
OP_INN
4.7uF 4.7uF 0.1uF 0.1uF OP+ 31
OP_INP
DMO
32
DMO
FMO 33
FMO
34
TROPENPWM
IOA 35
PWMOUT1 / V_ADIN0
TRO
36
TRO
FOO 37
FOO
38
AGND33_DMPLL
39
AVDD33_DMPLL
89P_3V3 L209 L209 C246 C246 C247 C247 USBP
40
USB_DP
FB FB 0.1uF 0.1uF 10uF/10V 10uF/10V USBM
41
USB_DM
42
VDD33_USB
R224 R224 5.1K 5.1K
43
VSS33_USB
C248 C248 C/NC C/NC 44
PAD_VRT
L210 L210 FB FB
45
VDD18_USB
46
VSS18_USB
C249 C249 C250 C250
47
USB_XTALO / GPIO15
10uF/10V 10uF/10V 0.1uF 0.1uF 48
USB_XTALI / GPIO14
49
89P_3V3 DVDD33
50
1.8V
DVDD18
FG
TP224 TP224 51
FG / GPIO16
52
DVSS33
53
DVSS18
1.8V
LIMIT 54
IOA22 / GPIO18
55
DVDD18
A2 56
IOA2
A3
57
IOA3
A4
58
IOA4
A5
59
IOA5
A6
60
IOA6
A7
61
IOA7
A8
62
HIGHA0
A18
63
IOA18
A19
64
IOA19
89P_3V3
L211 L211 FB FB
C251 C251 C252 C252
4.7uF 4.7uF 0.1uF 0.1uF
89P_3V3
89P_3V3
C256 C256 C257 C257 C258 C258 C259 C259 C260 C260 C261 C261 C262 C262
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
1.8V FOSO FOSO FOSO FOSO FOSO FOSO FOSO
TRSO TRSO TRSO TRSO TRSO TRSO
FMSO FMSO FMSO FMSO FMSO
DMSO DMSO DMSO DMSO DMSO DMSO DMSO
C263 C263 C268 C268 C269 C269 C270 C270 C271 C271 C272 C272 C273 C273
C264 C264 C265 C265
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
330pF 330pF 330pF 330pF
U202 U202
CM1117SCM233 CM1117SCM233 L213 L213 1.8V
SOT223 SOT223 3.3V
FB(1206) FB(1206)
4 J201 J201
TAB
3 2 1
IN OUT
RXD 2
R232 R232 C276 C276 + C277 + C277 TxD
3
680 680 4
0.1uF 0.1uF 100uF/6.3V 100uF/6.3V 4
+ CE210 + CE210 Change 620->680 4x1 W/HOUSING 4x1 W/HOUSING
100uF/6.3V 100uF/6.3V
1 2 3
R233 R233 330 330
CM1117SCM223
JITFO JITFN
C201 C201 1000pF 1000pF
TP201 TP201 TP202 TP202
R201 R201 750K 750K
89P_3V3 89P_3V3
1.8V 89P_3V3
89P_3V3
L204 L204
FB FB L205 L205
FB FB
+ +
C215 C215
+ + 3300pF 3300pF
C223 C223
0.1uF 0.1uF
DACVSSC
DACVDDB
DACVSSB
DACVDDA
DACVSSA
U201 U201
MT1389P MT1389P
Pin Assignment v1.0 Pin Assignment v1.0
GPIO20 / SD_CMD
1.8V
C283 C283 Add R231 2.2K
R225 R225 47K 47K FOO 1uF 1uF Add C283 1uF
R227 R227 47K 47K TRO
R228 R228 15K 15K FMO
R229 R229 10K 10K DMO
C266 C266 C267 C267
0.1uF 0.1uF 0.015uF 0.015uF
1:GND 1:GND 1
V1P4 2:D+ 2:D+
1 1 2 R236 R236 22 22
R235 R235 22 22
2 2 3
3:D- 3:D- 3 3 4 L215 L215 FB FB
4:VCC 4:VCC
4 4
J202 J202 L214 L214 U203 U203
USB TYPEA USB TYPEA FB/NC FB/NC AAT4610/NC AAT4610/NC
1
VOUT VIN
2
GND
3
SET ON
C278 C278 R234 R234
10uF/10V/NC 10uF/10V/NC 10K/NC 10K/NC
3-33 3-34
C202 C202
CVBS_INP R202 R202 0 0 R203 R203
0.047uF 0.047uF
3.3V R205 R205
C209 C209 56 56
ADACVDD L202 L202 47uH 47uH 330pF 330pF
APLLVDD3 L203 L203 47uH 47uH
DACVDD3 DACVDD3 L206 L206 FB FB
VIDEO IN
C212 C212 + + CE203 CE203
10uF/16V 10uF/16V
0.1uF 0.1uF
R215 R215 C230 C230
CE201/CE202/CE203
560 560 0.1uF 0.1uF
closed to IC's pin
89P_3V3
1.8V
192
CVBS
191
CVBS(Y)
DACVDD3
190
189
DACVDD3
188
89P_G
187
G
186
89P_B
185 OFF-PAGE CONNECTION
B
184 89P_R
R
CPH1
183
HCK
182 STHR VCOMO A+5V
VCOMO 7
HSTR
STHL CPH1 3.3V
181
HSTL CPH1 7
180 OEH GND
HOE
LNR
179
LR
178 STHL
DVSS18 STHL 7
OEV STHR
177
VOE STHR 7 POWER I/F
176 UND OEH
UD OEH 7
CKV OEV
175
VCK OEV 7
STVL /M_RESET
174
DVDD18 STVL 7
STVL STVR CH_SCS
173
STVR 7
VSTU
STVR LNR FM_SCS
172
VSTD LNR 7
UND SCLK
171
UND 7
GPIO100
CKV SDO
170
DVDD33 CKV 7
SDI
169
GPIO101
89P_R FM_MUTE
168
GPIO102 89P_R 7
167 89P_G
89P_G 7
GPIO103
89P_B
166 CHARGE & FM-TX I/F
SD_D3 89P_B 7
165 PWRCTL_LCD
PWRCTL_LCD 7
SD_D2
164
SD_D1
PANEL I/F A[0..21]
163
MS_D3
162
MS_D2
AD[0..7]
161
MS_D1
CVBS
160
DVDD18 CVBS 5
159 CVBS_IN PRD#
CVBS_IN 5
MS_CLK
AOUT_L PWR#
158
MS_BS AOUT_L 5
157 AOUT_R PCE#
MS_D0 AOUT_R 5
ASPDIF
156
DVDD33 ASPDIF 5
MA4 A_MUTE_SW FLASH I/F
155
RA4 A_MUTE_SW 5
MA5 /SP_MUTE
154
/SP_MUTE 5
RA5
MA6 VIDEO_IO_CTL
153
RA6 VIDEO_IO_CTL 5
MA7 MA[0..11]
152
RA7
MA8 DQ[0..15]
151 AV I/F
RA8
MA9 BA[0..1]
150
RA9
MA11 DQM[0..1]
149
RA11
148 DCLK
DVSS33
DCKE DCKE
147
CKE
146 DCLK CAS#
RCLK
RAS#
145
DVDD33
144 MA3 WE#
RA3
MA2 CS#
143
RA2
142
DVDD18
MA1
141
RA1
140 MA0 MEMORY I/F
RA0
MA10
139
RA10
138 BA1 SCL
BA1
BA0 SDA
137
BA0
CS#
136
RCS#
RAS#
135
RAS#
CAS# IIC I/F
134
CAS#
WE#
133
RWE#
DQM1 V1P4
132
DQM1
V20
131
DVDD33
TROPEN OPO
130
129 DQ8 OP-
RD8
OP+
LIMIT
IOA
LDO1
LDO2
MT1389P MT1389P A
B
QFP256A_0.4MM-MT1389 QFP256A_0.4MM-MT1389 C
D
E
F
RFO
DQ9 MDI1
DQ10 MDI2
DQ11 STBY
DQ12 TRSO
DQ13 DMSO
FOSO
FMSO
TROPEN
SERVO I/F
USBP
USBM
A+5V
5
4
C279 C279 LG & MALATA LG & MALATA LG & MALATA
10uF/10V/NC 10uF/10V/NC
Document Number Document Number Document Number
02.MPEG 02.MPEG 02.MPEG
Monday, January 15, 2007 Monday, January 15, 2007 Monday, January 15, 2007
TP203 TP203
18 18 CVBS_IN
A+5V 4,5
3.3V 3,4,7,8
GND 3,4,5,6,7,8
/M_RESET 6
CH_SCS 6
FM_SCS 8
SCLK 6,8
SDO 6,8
SDI 6
FM_MUTE 8
A[0..21] 3
AD[0..7] 3
PRD# 3
PWR# 3
PCE# 3
MA[0..11] 3
DQ[0..15] 3
BA[0..1] 3
DQM[0..1] 3
DCLK 3
DCKE 3
CAS# 3
RAS# 3
WE# 3
CS# 3
SCL 3
SDA 3
V1P4 4
V20 4
OPO 4
OP- 4
OP+ 4
LIMIT 4
IOA 4
LDO1 4
LDO2 4
A 4
B 4
C 4
D 4
E 4
F 4
RFO 4
MDI1 4
MDI2 4
STBY 4
TRSO 4
DMSO 4
FOSO 4
FMSO 4
TROPEN 4