Roadstar MPR-2903U Service Manual
R
- MPR-2903U/128
- MPR-2903U/128
MPR-2903U/128
Service Manual
Service Manual
5
LCD_DB0
LCD_DB1
LCD_DB2
D D
C C
LCD_DB3
LCD_DB4
LCD_DB5
LCD_DB6
LCD_DB7
FM_IN_CTL
AUDIO_IN_CTL
FM_DATA
FM_CLK
FM_ON
EL_ON
LCD_E/RD
LCD_R/W
LCD_D/C
LCD_/RES
LCD_/CS1
CODEC_SCLK
CODEC_SDIN
S1 HOLD
3
2
OFF ON
B B
LED1
R17 82
LED(BLUE)
R18 10K
B
Q1
E C
KTC3876S
S2
1234
PLAY/STOP
PWR ON/OFF
R24
300
A A
REW / MENU / FF
1
45
DVCCM
DVCCM
DVCCM
R25
120K
678
R12
10K
R21
47K
DVCC_A
123
CODEC_CSB
PWR_KEY
CE2
BAT_DETECT
DC_MODE
TR_MUTE
SMC_CHECK
WS0
SCLK0
SD0
WS1
SCLK1
SD1
MCLK
BKREQX
NGIDISX
PLAY_LED
PWR_KEY
R22
10K
R23
3K
S3
CE0
CE1
CLE
ALE
R/B
WP
RE
WE
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
ONA
R6
4.7K
R7 6.2M
X1
32768Hz
C1
100pF
DVCCM
CT1 10uF
+
C3 100nF
C4 100nF
CZ0 CP1CP0
HOLD_KEY
R13 100
R15
2K
C7
C6
220nF
220nF
100nF
C45
KEY_INPUT_A KEY_INPUT
R21 : 10K->47K
add C45
[2004.06.19]
R28
1.8K
S8
3
4
1
2
REC
220nF
C8
C2
100pF
CZ1
R14 100
R16
2K
C9
220nF
4
DVCCM
DGND
U1
TCC731
208
LCD_DB0
1
XIA
XTI
R27
1K
23
PA.0
2
PA.1
3
PA.2
4
PA.3
5
PA.4
6
PA.5
7
VDD
8
PA.6
9
PA.7
10
NC
11
NC
12
TEST1
13
TEST2
14
VSS
15
XI
16
XO
17
TEST3
18
PJ.0
19
PJ.1
20
PJ.2
21
PJ.3
22
VDD
23
PJ.4
24
PB.0
25
PB.1
26
PB.2
27
PB.3
28
VSS
29
PB.4
30
PB.5
31
PB.6/USB_DM
32
PB.7/USB_DP
33
VDD_ADC
34
VSS_ADC
35
AD_VREF
36
VDD_USB
37
VSS_USB
38
VDD_PLL0
39
CP0
40
CZ0
41
VSS_PLL0
42
VDD_PLL1
43
CP1
44
CZ1
45
VSS_PLL1
46
PC.0
47
PC.1
48
PC.2
49
PC.3
50
PC.4/IIC_SCL
51
PC.5/IIC_SDA
52
PC.6/UART_RX
5354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899
DVCCM
KEY_INPUTKEY_INPUT_A
LCD_DB1
LCD_DB2
LCD_DB3
LCD_DB4
LCD_DB5
DVCCM
LCD_DB6
LCD_DB7
NSCS0
XISEL
DGND
XI
XO
FM_IN_CTL
AUDIO_IN_CTL
FM_DATA
FM_CLK
DVCCM
FM_ON
EL_ON
LCD_E/RD
LCD_R/W
LCD_D/C
DGND
LCD_/RES
LCD_/CS1
DM
DP
DVCCM
DGND
DVCCM
DGND
DVCC_PLL0
CP0
CZ0
DGND
DVCC_PLL1
CP1
CZ1
DGND
F_STB
F_CLK
F_TXD
CHG_EN
CODEC_SCLK
CODEC_SDIN
R26
8.2K
S6
S7
4
4
1
23
1
PLUS
MINUS
DB14
DB13
DB15
205
206
207
VSS
ED.13
ED.14
ED.15
VDD
PC.7/UART_TX
PG.0/INT8
PG.1/INT9
CODEC_CSB
DB9
DB12
DB11
DB10
200
201
202
203
204
VDD
ED.11
ED.12
ED.10
PG.2/SMC_CE2
PD.0/ADC0/INT0
PD.1/ADC1/INT1
VSS
BAT_DETECT
DGND
CE2
KEY_INPUT
DB6
DB8
DB7
DB5
196
197
198
199
ED.6
ED.7
ED.8
ED.9
PD.2/ADC2/INT2
PD.3/ADC3/INT3
PD.4/ADC4/INT4
PD.5/ADC5/INT5
F_SRQ
F_ACK
F_RXD
3
EXTDA8
EA.14
EXTDA7
EXTDA9
DVCCM
EXTDA11
EXTDA10
EXTDA13
EXTDA12
173
174
175
176
177
178
179
180
VDD
EA.7
EA.8
EA.9
EA.10
EA.11
EA.12
EA.13
DB1
DB2
DGND
DB4
DB3
DVCCM
EXTDA20
189
ED.0
EA.20
EXTDA19
188
VDD
DGND
EXTDA14
EXTDA15
EXTDA18
EXTDA16
EXTDA17
181
182
183
184
185
186
187
VSS
EA.15
EA.16
EA.17
EA.18
EA.19
DB0
190
191
192
193
194
195
VSS
ED.1
ED.2
ED.3
ED.4
ED.5
TELECHIPS
TCC730
TCC731
PD.6/ADC6/INT6
PD.7/ADC7/INT7
PH.0/SMC_CE0
VDD
PH.1/SMC_CE1
PH.2/SMC_CLE
PH.3/SMC_ALE
PH.4/SMC_BUSY
PH.5/SMC_WP
PH.6/SMC_RE
PH.7/SMC_WE
VSS
PI.0/SMC_IO0
PI.1/SMC_IO1
PI.2/SMC_IO2
PI.3/SMC_IO3
PI.4/SMC_IO4
PI.5/SMC_IO5
VDD
PI.6/SMC_IO6
PI.7/SMC_IO7
PE.0
PE.1
PE.2
DVCCM
CE0
CLE
DVCCM
HOLD_KEY
CE1
ALE
BC1 100nF BC2 100nF
BC3 100nF
BC5 100nF
BC7 100nF
BC9 100nF
BC11100nF
BC13100nF
DGND
R/B
WP
WE
IO0
RE
IO1
IO2
DVCCMDVCCM DVCCM
BC4 100nF
BC6 100nF
BC8 100nF
BC10100nF
BC12100nF
BC14100nF
DC_MODE
ONA
IO3
TR_MUTE
IO4
IO5
IO6
IO7
CT2
+
10uF
EXTDA5
EXTDA4
EXTDA6
DGND
169
170
171
172
VSS
EA.4
EA.5
EA.6
PE.3
VSS
IIS_WCK0
IIS_BCK0
DGND
SMC_CHECK
WS0
SCLK0
EXTDA2
EXTDA3
167
168
EA.2
EA.3
IIS_DATA0
IIS_WCK1
SD0
WS1
R19
4.7K
EXTDA1
EXTDA0
165
166
EA.0
EA.1
IIS_BCK1
IIS_DATA1
SCLK1
SD1
DVCCM
ICLK
164
CLKOUT
IIS_MCK
MCLK
DVCCM
163
VDD
VDD
DVCCM
R20
4.7K
NSWE
NSOE
DQM
CKE
159
160
161
162
CKE
SOE
SWE
DQM
PF.7/LCD_DATA15
PF.6/LCD_DATA14
PF.5/LCD_DATA13
PF.4/LCD_DATA12
PF.3/LCD_DATA11
PF.2/LCD_DATA10
PF.1/LCD_DATA9
PF.0/LCD_DATA8
TEST4
TEST5
TRST
TCK
100
101
102
NGIDISX
BKREQX
DGND
NSCS3
157
158
VSS
SCS3
TEST17
TEST16
RESETO
RESET
LCD_PCLK
LCD_LCLK
LCD_FCLK
LCD_BIAS
LCD_DATA.7
LCD_DATA.6
LCD_DATA.5
LCD_DATA.4
LCD_DATA.3
LCD_DATA.2
LCD_DATA.1
LCD_DATA.0
TEST15
TEST14
TEST13
TEST12
TEST11
TEST10
TEST9
TEST8
TEST7
TEST6
TDI
JTAG
103
104
SCS2
SCS1
SCS0
DWE
UCLK
2
DVCCM
R1
1.5K
R4
1.5K
BD2 121
BD3 121
R2 10
DP
DM
R3 10
NSCS2
156
NSCS1
155
NSCS0
154
NRAS
153
RAS
NDWE
152
NDCS
151
DCS
DVCCM
150
VDD
NCAS
149
CAS
BA1
148
BA1
BA0
147
BA0
TMODE
NEXPACK
NRESETO
NRESET
PCLK
DGND
LCLK
FCLK
AC_BIAS
VD_LCD7
VD_LCD6
DVCCM
VD_LCD5
VD_LCD4
VD_LCD3
VD_LCD2
VD_LCD1
VD_LCD0
PF7
DGND
SD_CLK
SD_CHECK
SD_CMD
SD_DATA3
SD_DATA2
DVCCM
SD_DATA1
SD_DATA0
EVMAT3
EVMAT2
EVMAT1
EVMAT0
EXTBK3
EXTBK2
EXTBK1
EXTBK0
DGND
RUNST
EVBP
R5 4.7K
R8 4.7K
R9 4.7KC5 100nF
R10 4.7K
R11 4.7K
146
145
144
143
142
141
VSS
140
139
138
137
136
135
VDD
134
133
132
131
130
129
128
127
VSS
126
125
124
123
122
121
VDD
120
119
118
117
116
115
114
113
112
111
110
VSS
109
TDO
108
107
106
105
TMS
BD1
USB_VCC
1
121
NSCS0
NRESET
SD_CLK
SD_CHECK
SD_CMD
SD_DATA3
SD_DATA2
SD_DATA1
SD_DATA0
JK1
4
GND
3
D+
2
D-
1
VBUS
USB-Mini (4P)
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
EXTDA18
EXTDA17
EXTDA16
EXTDA15
EXTDA14
EXTDA13
EXTDA12
EXTDA11
EXTDA10
EXTDA9
EXTDA8
EXTDA7
EXTDA6
EXTDA5
EXTDA4
EXTDA3
EXTDA2
EXTDA1
EXTDA0
NSWE
NSOE
Rotary(Jog) S/W
5
4
3
2
1
5
4
3
2
1
DVCC
U2
1
DVCC
D D
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
CLE
ALE
WE
WP
R/B
RE
CE0
CE1
C C
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
CLE
ALE
WE
WP
R/B
RE
CE0
CE1
R31
4.7K
DVCC
BC17
100nF
DGND
R/B
RE
CE0
DVCC
DGND
CLE
ALE
WE
WP
+
CT3
10uF
NC
2
NC
3
NC
4
NC
5
NC
6
GND
7
R/B
8
RE
9
CE
10
NC
11
NC
12
VCC
13
VSS
14
NC
15
NC
16
CLE
17
ALE
18
WE
19
WP
20
NC
21
NC
22
NC
23
NC
24 25
NC NC
K9F1G08U0M-YCB0
IO8
IO7
IO6
IO5
VCC
VSS
IO4
IO3
IO2
IO1
48
NC
47
NC
46
NC
45
NC
44
43
42
41
40
NC
39
NC
38
NC
37
36
35
NC
34
NC
33
NC
32
31
30
29
28
NC
27
NC
26
NC
IO7
IO6
IO5
IO4
DVCC
DGND
IO3
IO2
IO1
IO0
DVCC
BC15100nF
BC16100nF
WP
SMC_CHECK
CE2
NC(SMC)
R29 100K
R30 10K
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
B B
A A
DB4
DB3
DB2
DB1
DB0
EXTDA18
EXTDA17
EXTDA16
EXTDA15
EXTDA14
EXTDA13
EXTDA12
EXTDA11
EXTDA10
EXTDA9
EXTDA8
EXTDA7
EXTDA6
EXTDA5
EXTDA4
EXTDA3
EXTDA2
EXTDA1
EXTDA0
NSWE
NSOE
NSCS0
5
4
3
SMC_CHECK
SD_CHECK
CE2
SD_DATA0
SD_DATA1
SD_DATA2
SD_DATA3
SD_CLK
SD_CMD
SMC_CHECK
SD_CHECK
SD_DATA0
SD_DATA1
SD_DATA2
SD_DATA3
SD_CLK
SD_CMD
2
CE2
NC(MMC)
DVCC
R33
10K
1
SD_CHECK
5
4
3
2
1
USB_VCC
U3
1
Vin
2
+
CT4
D D
10uF
GND
3 4
On/Off Cn
S1111B33MC
R1111N331B
Vout
5
C10
100nF
C11
100nF
DVCC
1.5V
R34 100K
BAT_DETECT
BT1
+
1.5V
L1 22uH
BT2
R36
100K
DVCCDVCCM
C C
-
CT5
22uF
+
DGND
C12
100nF
U4
1
LBI
BATT
2
FB
3
4 5
OUT
LBO
SHDN GND
LX
MAX1797
R37 1M
8
7
6
DGND
R35
120K
DCDC_OUT
C13
100nF
+
CT6
22uF
+
CT16
22uF
R38
100K
ONA
R39 10K
R40
B B
390K
DGND
Q2
B
KTC3876S
E C
DGND
R41 390K
DGND
DGND
add CT16
R41:100K->390K
[2004.06.19]
DVCC
R42
10K
Q3
KTA1505S
DC_MODE
A A
NC
R43
20K
5
R44
10K
4
3
2
BAT_DETECT
PWR_KEY
NRESET
1
5
D D
MICBIAS
R48
2.2K
J1
C14
1uF
R50
2.7K
OB-27/MIC6x2.7
C C
AVCCDVCC
BD9
121
B B
C25
220pF
C29
220pF
C24
1uF
C28
1uF
LLINEIN
RLINEIN
R58
JK3
L
3
R
2
G
1
LINE IN
A A
5.6K
R60
5.6K
R59
5.6K
R61
5.6K
4
CODEC_SCLK
CODEC_CSB
CODEC_SDIN
MCLK
SCLK0
SCLK1
SD0
WS0
SD1
WS1
MICBIAS
DVCC
R53
47K
RADIN
LADIN
MICIN
DVCC
C17
100nF
19
20
21
22
23
24
25
C26
100nF
RLINEIN
LLINEIN
*CS
MODE
SDIN
SCLK
MCLK
3
VMID
VMID
AVDD
MICIN
AGND
MICBIAS
XTO
DVDD
DGND
BVDD
CLKOUT
2627281234
LHPOUT_A
RHPOUT_A
TR_MUTE_A
TR_MUTE_A
+
CT9
10uF
U5
12131415161718
TLV320AIC23BPW
LOUT
ROUT
HPGND
RHPOUT
LHPOUT
HPVDD
LRCOUT
DOUT
LRCIN
BCLK
DIN
DBVCC
+
C27
100nF
11
10
9
8
7
6
5
CT13
10uF
C15
100nF
TR_MUTE_A
AVCC
C16
100nF
BD10
121
+
LADIN
RADIN
LLINEIN
RLINEIN
2
CT7
LHPOUT_A LSPOUT
RHPOUT_A RSPOUT
R49 47K
100uF
+
CT8
100uF
+
DVCC_A
delete Q4~5,R47
[2004.06.19]
AGND_A
AGND_A
R57
CT10
10uF
000
AGND FMGND
AVCC
DVCC
C20
100nF
+
RHPOUT
LHPOUT
CT11
10uF
LSPOUT
RSPOUT
SP_IN
C19 1uF
C21 1uF
RHPOUT
LHPOUT
R54 10K
R55 10K
SP_IN_A
R45
47K
R46
47K
SP_IN
C22
100nF
SP_IN_A
AMPVDD
Q6
KTC3876S
U6
1
SD
2
BY
3
IN+
4 5
IN- VO1
LM4861M
R56 20K
BD4
121
BD5
121
R51
47K
VO2
GND
VDD
R52
47K
C18
1uF
AMPVDD
8
7
6
C23
100nF
1
BD6
SP_SCL_A
SP_SCL
121
BD8
121
+
JK2
4
L
3
R
2
G
1
HeadPhone OUT
ANT
121
BD7
CT12
22uF
SP_CTL_A
SP_CTL
AVCC
SP1
2
-
1
+
32 ohm/0.2W
ANT
5
4
3
2
1
5
D D
4
3
2
1
EL+
EL-
C30 100nF
D1 1SS355
P N
C C
R62 100K
L2 470uH
U8
1
CHV
2
3
4 5
EL1
LDR
EL2
VSS
VDD
OSC ENA
8
7
6
LCDVCC
LCDVCC
SM8142BV
B B
EL_ON
29
EL+
30
EL-
U7 LCD - MT5001FA
VDD
C68/80
VSS1V5V4V3V2V1C2P
123456789101112131415161718192021222324252627
C32 100nF
C33 100nF
C31 100nF
C34 100nF
C35 100nF
C36 1uF
C2N
C37 1uF
C1N
C1P
C38 1uF
C3N
C39 1uF
Vout
VSS2D7D6D5D4D3D2D1D0
LCD_DB3
LCD_DB1
LCD_DB4
LCD_DB5
LCD_DB7
LCD_DB6
LCD_DB0
LCD_DB2
/RD
/WR
D/C
LCD_/RES
LCD_E/RD
LCD_R/W
LCD_D/C
/RES
/CS
28
LCD_/CS1
EL_ON
LCD_DB0
LCD_DB1
LCD_DB2
LCD_DB3
LCD_DB4
LCD_DB5
LCD_DB6
LCD_DB7
LCD_E/RD
LCD_R/W
A A
LCD_D/C
LCD_/RES
LCD_/CS1
DVCC
BD11
121
LCDVCC
+
CT14
10uF
DGND
5
4
3
2
1
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