LG DP270B, Service Manual

Page: 40 / 53

SERVO I/F
AV I/F
PANEL I/F
OFF-PAGE CONNECTION
IIC I/F
MEMORY I/F
CHARGE & FM-TX I/F
CE201/CE202/CE203
closed to IC's pin
RF
VDD3
STHR
A8
A1
A2
DQ2
AOUT_L
AD1 AD6
TRSO TRSO TRSO TRSO TRSO TRSO
PLLVDD3
STHL
DQ0
RF
VDD3
DACVDD3
DQ1
5
OEH
OEV
OEH
STHR
LNR
STVR
STVL
UND
STHL
CKV
AD[0..7]
A3
A18
A17 A21 DQ7 AD0
LNR
A16
AVDD18_VPLL
A12
CPH1
AD2 PW
R#
DQ6
CVBS
PLLVDD
3
FG
A[0..21]
CVBS_INP
RFV33
V2P8 AOUT_R
DQ5
DACVDD3 DACVDD3
LDO2
LDO1
89P_G
FOSO
V1P4
V2P8
V20
DMSO
FMSO
FOO
TRO
FMO
DMO
STBY
V20
V1P4
A6
A4
A7
AOUT_R
V1P4
RFV18
MA0
STVR
BA0
DQM1
DQ11
MA11
UND
DCLK
CS#
DQ8
MA9
DQ10
STVL
MA7
MA1
MA8
MA5
DQ13
MA3
BA1
MA6
OEV
RAS#
MA2
MA10
WE#
MA4
DCKE
CAS#
CKV
DQ12
A10 DQ1
4
A9 AD3 DQ1 AD7 A14 A13 A20 PCE#
TRO
FOO
89P_R
DQ4
VCOMO
APLLVDD3
OP-
OP+
FMO
DMO
OPO
A
B
D
C
AOUT_L
VCOM
O
DQ3
JI
TFO
XO JI
TFN
A0
A_MUTE_SW
DQM[0..1]
BA[0..1]
RXD
TxD
V1P4
ADACVDD
RXD TXD
DCKE
DCLK
DACVDD3
XI
APLLVDD3
SCL
SDA
ADACVDD
C
89P_B
MA[0..11]
V1P4
D
DQ[0..15]
DMSO
TRSO
FOSO
FMSO
A
B
CAS#
RAS#
CS#
WE#
PCE#
PWR#
PRD#
CVBS
SUBA
SUBB
E
F
USBP
USBM
A11
RFVDD3
RFV1
8
DQM0 PRD#
A5
AD4
XI
89P_R
FG IOA
AD5
89P_G
A19
A15
89P_B
DQ9
DACVDD3
CPH1
JITFN JITFO
CVBS_IN CVBS_INP
STBY
LIMIT
RFV33
RFO
AVDD18_VPLL
FMSO FMSO FMSO FMSO
DMSO
DMSO DMSO DMSO DMSO DMSO
FOSO FOSO FOSO FOSO FOSO FOSO
OPO
OP-
OP+
LIMIT
IOA
LDO1
LDO2
A
B
C
D
E
F
RFO
MDI1
TROPEN
GND
3.3V
A+5V
SCLK
SDI
CH_SCS
SDO
SCL SDA SCLK CH_
SCS
SDO SDI
PWRCTL_LCD
ASPDIF
PW
R
C
TL_LC
D
ASPDIF
XO
A+5V
USBM
USBP
MDI2
CVBS_IN
VIDEO_IO_CTL
FM_SCS
FM_MUTE
FM
_SC
S
FM
_M
U
T
E
A_M
U
TE_SW
RF
VDD3
/SP_M
U
TE
/SP_MUTE
MDI2
MDI1
V20
TROPEN
/M_RESET
VIDEO_IO_CTL
/M
_RESET
89P_3V3
89P_3V3
1.8V
1.8V
1.8V
89P_3V3
89P_3V3
1.8V
89P_3V3
1.8V
89P_3V3
1.8V
89P_3V3 1.8V
89P_3V3
89P_3V3
3.3V
89P_3V3
3.3V
1.8V
3.3V
1.8V
89P_3V3
3.3V
AOUT_L 5
AOUT_R 5
A_MUTE_SW 5
PRD# 3
PWR# 3
AD[0..7] 3
A[0..21] 3
PCE# 3
CAS# 3
DCKE 3
CS# 3
BA[0..1] 3
RAS# 3
MA[0..11] 3
WE# 3
DQM[0..1] 3
DCLK 3
DQ[0..15] 3
SDA 3
V1P4 4
STBY 4
DMSO 4
FOSO 4
TRSO 4
FMSO 4
CVBS 5
89P_G 7
89P_R 7
89P_B 7
VCOMO 7
SCL 3
OPO 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
OP- 4
OP+ 4
TROPEN 4
GND 3,4,5,6,7,8
3.3V 3,4,7,8
A+5V 4,5
CH_SCS 6
SDO 6,8
PWRCTL_LCD 7
ASPDIF 5
MDI2 4
CVBS_IN 5
CPH1 7
SCLK 6,8
SDI 6
FM_SCS 8
FM_MUTE 8
/SP_MUTE 5
STHL 7
STHR 7
OEH 7
OEV 7
STVL 7
STVR 7
LNR 7
UND 7
CKV 7
V20 4
/M_RESET 6
VIDEO_IO_CTL 5
Document Number
02.MPEG
LG & MALATA
Monday, January 15, 2007
Document Number
02.MPEG
LG & MALATA
Monday, January 15, 2007
Document Number
02.MPEG
LG & MALATA
Monday, January 15, 2007
Crystal
FLASH I/F
POWER I/F
VIDEO IN
Change 620->680
3 1
4
2
Add R231 2.2K
Add C283 1uF
C232
0.1uF
C232
0.1uF
TP208 TP208
C276
0.1uF
C276
0.1uF
C212
0.1uF
C212
0.1uF
C244
4.7uF
C244
4.7uF
C247
10uF/10V C247
10uF/10V
R
207
15K
R
207
15K
C246
0.1uF C246
0.1uF
+
CE206
47uF/6.3V
+
CE206
47uF/6.3V
TP211 TP211
C215
3300pF
C215
3300pF
TP203 TP203
C
211
0.1uF
C
211
0.1uF
R2
10 470
R2
10 470 C
220
0.1uF
C
220
0.1uF
C264
330pF
C264
330pF
+ CE210
100uF/6.3V + CE210
100uF/6.3V
TP218 TP218
+
CE203
10uF/16V
+
CE203
10uF/16V
C262
0.1uF
C262
0.1uF
C233
0.1uF
C233
0.1uF
C268
0.1uF
C268
0.1uF
R209 2K R209 2K
C267
0.015uF
C267
0.015uF
J201
4x1 W/HOUSING
J201
4x1 W/HOUSING
1
2
3
4
R227 47K R227 47K
TP214 TP214
+
CE
201
220uF/6.3V
+
CE
201
220uF/6.3V
C236 120pF/NC C236 120pF/NC
L207
FB
L207
FB
C
207
0.1uF
C
207
0.1uF
+ C277
100uF/6.3V
+ C277
100uF/6.3V
R228 15K R228 15K
TP219 TP219
C269
0.1uF
C269
0.1uF
L202 47uH L202 47uH
C238 1uF C238 1uF
C251
4.7uF C251
4.7uF
+
CE207
47uF/6.3V
+
CE207
47uF/6.3V
C275
33pF C275
33pF
U202
CM1117SCM233
SOT223 U202
CM1117SCM233
SOT223
OUT
2
IN
3
GND
1
TAB
4
C2
24
0.1uF
C2
24
0.1uF
TP220 TP220
C2
29
0.1uF
C2
29
0.1uF
TP224 TP224
C240 1uF C240 1uF
0.047uF
C2
25
0.047uF
C2
25
TP201 TP201
TP209 TP209
L209
FB L209
FB
L203 47uH L203 47uH
C254
0.1uF
C254
0.1uF
TP225 TP225
R222 0 R222 0
TP222 TP222
R224 5.1K R224 5.1K
C261
0.1uF
C261
0.1uF
C274
33pF C274
33pF
C250
0.1uF C250
0.1uF
L215 FB L215 FB
C259
0.1uF
C259
0.1uF
L214
FB/NC L214
FB/NC
R218 0 R218 0
+
CE
202
100uF/6.3V
+
CE
202
100uF/6.3V
R234
10K/NC R234
10K/NC
1:GND
2:D+
3:D-
4:VCC
4
2
3
1
J202
USB TYPEA
1:GND
2:D+
3:D-
4:VCC
4
2
3
1
J202
USB TYPEA
3
2
1
4
5
6
R208 2K R208 2K
R225 47K R225 47K
R202 0 R202 0
C
213
0.1uF
C
213
0.1uF
C255
0.1uF
C255
0.1uF
C257
0.1uF
C257
0.1uF
C205
2200pF
C205
2200pF
TP215 TP215
C231
0.1uF
C231
0.1uF
C204
0.01uF
C204
0.01uF
L213
FB(1206) L213
FB(1206)
C226
0.1uF C226
0.1uF
L204
FB L204
FB
U203
AAT4610/NC
U203
AAT4610/NC
VOUT
1
VIN
5
GND
2
SET
3
ON
4
L201
FB
L201
FB
C
214
1000pF
C
214
1000pF
L212 FB L212 FB
C
206
20pF
C
206
20pF
R203 18 R203 18
+
CE205
47uF/6.3V
+
CE205
47uF/6.3V
R2
14
100K
R2
14
100K
L210 FB L210 FB
C252
0.1uF C252
0.1uF
C271
0.1uF
C271
0.1uF
R2
31
2.2K
R2
31
2.2K
R215
560
R215
560
TP210 TP210
R2
04
100K
R2
04
100K
C283
1uF
C283
1uF
C239 1uF C239 1uF
R223 0 R223 0
C234 1uF C234 1uF
C263
0.1uF
C263
0.1uF
C2
28
0.047uF
C2
28
0.047uF
C248 C/NC C248 C/NC
C
221
4.7uF
C
221
4.7uF
C243
0.1uF
C243
0.1uF
R206
6.8
R206
6.8
C
216
4.7uF
C
216
4.7uF
TP206 TP206
C
203
0.1uF
C
203
0.1uF
R233 330 R233 330
C245
0.1uF
C245
0.1uF
C265
330pF
C265
330pF
C
208
10uF/10V
C
208
10uF/10V
+ CE204
100uF/6.3V
+ CE204
100uF/6.3V
TP217 TP217
C202
0.047uF
C202
0.047uF
TP202 TP202
C249
10uF/10V C249
10uF/10V
TP223 TP223
C266
0.1uF
C266
0.1uF
TP213 TP213
C260
0.1uF
C260
0.1uF
C2
27
0.033uF
C2
27
0.033uF
C279
10uF/10V/NC C279
10uF/10V/NC
C258
0.1uF
C258
0.1uF
C241
0.1uF
C241
0.1uF
+ CE208
47uF/10V
+ CE208
47uF/10V
R205
56 R205
56
C209
330pF
C209
330pF
R229 10K R229 10K
C270
0.1uF
C270
0.1uF
R232
680 R232
680
+ CE209
100uF/10V
+ CE209
100uF/10V
R236 22 R236 22
C223
0.1uF C223
0.1uF
C273
0.1uF
C273
0.1uF
R235 22 R235 22
X201
27MHz X201
27MHz
C280
0.1uF
C280
0.1uF
L208
FB
L208
FB
R201 750K R201 750K
Pin Assignment v1.0
MT1389P
U201
MT1389P
QFP256A_0.4MM-MT1389
Pin Assignment v1.0
MT1389P
U201
MT1389P
QFP256A_0.4MM-MT1389
DVDA
2
CRT
P
LP
250
DVDB
3
DVDC
4
DVDD
5
AGND
1
OS
P
252
OS
N
253
DVDRFIP
6
MA
7
MB
8
MC
9
MD
10
SA
11
SB
12
SC / TNI
13
SD / TPI
14
MDI1
15
MDI2
16
LDO2
17
LDO1
18
SVDD3
19
CSO/RFOP
20
RFLVL / RFON
21
SGND
22
V2REFO
23
AV
DD3
256
TEZISLV
28
TEO
27
OP_INN
30
OP_OUT
29
DMO
32
OP_INP
31
VSS33_USB
43
FEO
26
VREFO
25
FMO
33
TROPENPWM
34
PWMOUT1 / V_ADIN0
35
TRO
36
VDD33_USB
42
USB_DM
41
VDD18_USB
45
AVDD33_DMPLL
39
USB_DP
40
VSS18_USB
46
AGND33_DMPLL
38
FOO
37
IOA5
59
IO
A2
0
75
HI
GHA
1
74
HI
GHA
3
72
HI
GHA
4
71
HI
GHA
5
70
HI
GHA
6
69
HI
GHA
7
68
DVSS33
52
A1
7
91
HIGHA0
62
IOA18
63
IO
A
21 /
GP
IO
17
87
AD
6
86
IOA19
64
DV
DD33
65
AD
4
84
AD
3
83
AD
2
82
D
VSS1
8
81
HI
GHA
2
73
DV
DD18
93
DVSS18
53
IOA22 / GPIO18
54
DVDD18
55
IOA2
56
AD
1
80
IOA3
57
IOA4
58
A1
6
67
IO
A0
92
AD
5
85
IOA6
60
IOA7
61
IO
C
S
#
76
IO
O
E
#
78
D
VSS3
3
90
AD
0
79
IO
W
R
#
66
IO
A1
77
UWR#
94
URD#
95
DV
DD33
96
UP
1_2 /
GP
IO
19
97
UP
1_3 /
V
S
CK
98
UP
1_4 /
V
S
TB
99
UP
1_5 /
V
S
DA
100
UP
1_6 /
S
C
L
101
UP
1_7 /
S
D
A
102
UP
3_0
103
UP
3_1
104
UP
3_4 /
RX
D
105
RD4
116
UP
3_5 /
TX
D
106
IC
E
107
AD
C
V
DD3
244
AD
C
VSS
245
PR
ST
#
108
IR
109
GP
IO
22 /
S
D
_D
AT
A0
/ IN
T
0
#
110
DQM0
111
GP
IO
21 /
S
D
_CLK
112
RD15
122
RD7
113
RD6
114
RD5
115
RD3
117
DV
DD33
118
RD1
120
RD2
119
RD0
121
RD14
123
RD13
124
RD12
125
RD11
126
RD9
128
RD10
127
RD8
129
DACVSSC
192
CVBS(Y)
191
DACVDDB
190
DACVSSB
189
DACVDDA
188
G
187
DACVSSA
186
B
185
R
184
HCK
183
HSTR
182
HSTL
181
HOE
180
LR
179
DVSS18
178
VOE
177
UD
176
VCK
175
DVDD18
174
VSTU
173
VSTD
172
GPIO100
171
DVDD33
170
GPIO101
169
GPIO103
167
GPIO102
168
SD_D3
166
SD_D2
165
SD_D1
164
MS_D3
163
MS_D2
162
MS_D1
161
DVDD18
160
MS_CLK
159
MS_BS
158
DVDD33
156
MS_D0
157
RA4
155
RA5
154
RA6
153
RA7
152
RA8
151
RA9
150
DVSS33
148
RA11
149
CKE
147
RCLK
146
DVDD33
145
RA3
144
RA2
143
RA1
141
DVDD18
142
RA0
140
RA10
139
BA1
138
BA0
137
RCS#
136
CAS#
134
RAS#
135
RWE#
133
DQM1
132
DVDD33
131
GPIO20 / SD_CMD
130
HR
FZC
249
IR
EF
255
V20
24
RFGC
254
AD
AC
VD
D
1
231
AD
AC
VD
D
2
230
PL
L
VSS
238
JI
TFN
237
RF
RP
A
C
248
RF
RP
DC
247
JI
TFO
236
RF
GND
251
RF
V
DD3
246
LP
FOP
243
LP
FI
P
241
LP
FI
N
242
LP
FON
240
P
LLV
DD3
239
XT
AL
O
234
XT
AL
I
235
RF
GND18
232
APL
L
VSS
224
AD
AC
VSS2
225
APL
L
V
D
D
222
AV
DD18_V
P
L
L
221
VP
LL_TS
T
220
AG
N
D
1
8
_
VPL
L
219
AD
AC
VSS1
226
VF
E_
T
S
T
P
/ AU
D
IO
_
IN
1
218
VF
E_
T
S
TN
/ A
U
D
IO_I
N
2
217
C
VBS_
IN
P
215
C
VBS_
IN
N
/ BATT
E
R
Y
213
AV
DD33_V
FE
214
GP
IO
10 (
ASD
AT
A3
)
204
AG
N
D
_
AD
C
211
DV
DD33_A
DC
210
DGND_A
D
C
209
SPD
IF
/ G
P
IO
2
3
208
AV
DD33_A
DC
212
GGP
IO
12 (MCDA
T
A
)
207
GP
IO
11 (
ASD
AT
A4
)
206
DV
DD18
205
GP
IO
9 (A
CLK
)
203
GP
IO
8
(ABC
K)
202
GP
IO
7 (A
LRCK
)
201
DV
DD33
200
GP
IO
6 (
ASD
AT
A2
)
199
GP
IO
5 (
ASD
AT
A1
)
198
GP
IO
4 (
ASD
AT
A0
)
197
VC
O
M
/ G
P
IO
3
196
DA
CV
DDC
195
VR
EF
194
FS
193
RF
V
D
D18
233
PAD_VRT
44
USB_XTALO / GPIO15
47
USB_XTALI / GPIO14
48
DVDD33
49
DVDD18
50
FG / GPIO16
51
AL
E
88
AD
7
89
AG
N
D
_
VF
E
216
APL
L
C
AP
223
AVC
M
228
AL
/ SD
AT
A2
/ G
P
IO
1
229
AR
/ SD
AT
A0
/ G
P
IO
0
227
L211 FB L211 FB
TP207 TP207
C272
0.1uF
C272
0.1uF
R230 100K R230 100K
C253
0.1uF
C253
0.1uF
TP212 TP212
C235 1uF C235 1uF
C218
0.1uF
C218
0.1uF
TP221 TP221
L206 FB L206 FB
C278
10uF/10V/NC
C278
10uF/10V/NC
C201 1000pF C201 1000pF
C2
22
1500pF
C2
22
1500pF
C230
0.1uF
C230
0.1uF
TP216 TP216
L205
FB L205
FB
C256
0.1uF
C256
0.1uF
Chip Decoupling Cap.
CM1117SCM223
3-33 3-34
1. MPEG CIRCUIT DIAGRAM
CIRCUIT DIAGRAMS