Panasonic SVMP-20 Schematic
Service Manual
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TD0404027C2
Digital Audio Player
l
SV-MP20VE
Colour
(S)................... Silver Type
Specifications
Memory size: 128 MB
Supported sampling frequency:
Supported bit-rates: MP3; 8 kbps to 320 kbps (128 kbps is recommend) WMA; 32 kbps to 192 kbps (96 kbps is recommend)
No. of channels: Stereo, 2 channels (PLATER,FM RADIO) Mono, 1 channel (IC RECORDER)
Frequency response: 20Hz to 20,000Hz (+0dB, -6dB) (PLAYER) 300 Hz to 4,300 Hz (IC RECORDER,HQ mode)
Mic S/N: 37 dB (IC RECORDER,HQ mode)
Radio Frequency range (FM): 87.5 MHz to 108.0 MHz (50 kHz steps)
Output: 1.6 mW+ 1.6 mW (16Ω,M3 jack)
Power supply: DC 1.5V (one LR03,AAA,AM-4 battery)
Approximate play times: 10 hours (alkaline battery,PLAYER),6hours (alkaline battery,FM RADIO)
Approximate recording times: 15 hours (alkaline battery, IC RECORDER, LP mode)5hours 30 minutes (alkaline battery,FM RADIO)
Maximum dimensions (WxHxD):
Cabinet dimensions (WxHxD): 42.1 x 60.0 x 21.9mm
Mass: 45.5g with battery
MP3; 32 kHz, 44.1 kHz, 48 kHz, WMA; 8 kHz to 44.1 kHz
43.8 x 61.5 x 21.9mm
34.1g without battery
l Specifications are subject to change without notice.
l The play times shown depend on operating conditions.
l Mass and dimensions are approximate.
l MB means one million bytes. Useable capacity may be less.
© 2004 Matsushita Electric TAIWAN Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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Schematic diagram-1
SUB CIRCUIT
B
:POSITIVE VOLTAGE LINE : AUDIO(DIGITAL) SIGNAL LINE : AUDIO(ANALOG) SIGNAL LINE
CLK/SEL
OUT
B1ABMB000003
Power Switch
2.96V
R132
100K
100K
Q106
56K
UN9216JTX
Power Switch
C112
0.033
C118
0.701.441.521.4
19
18
TMUTE
VccO
6
7
C130
0
R101
R142
10
R102
143K
C133
22P
R134
10
2.493.0
1011
9
LBO
FB
8
7
1.23
2.96V
Q105
2.26V
2.26V
0V
0.22
0.69
17
VAFL
VAFR
PILFIL
PHASEFIL
XTAL2
XTAL1
SWPORT2
SWPORT1
BUSENABLE
BUSMODE
DATA
CLOCK
8
2.96
R135
22
0.022
L104
0.022
C124
R103
2.49
LDO
LBLDO
1.38
10V4.7
C145
IC104
C0CBAAE00040
Regulate Voltage
at 2.8V
C113
0.22
C101
0.001
0.5
16
1.35
15
14
C122
10P
1.62
13
R136
0.02
12
100K
0.02
11
R137
2.98
100K
10
0
9
R138
22
UN5116RTX
Power Switch
2.69V
Q107
0.46V
0.46V
4V47
C123
Q108
0V
B1ABCF000020
Power Switch
100K
VCC-2V5
R105
R104
270K
C119
0.022
R139
0.65V
VCC-BATT
C137
100K
100K
R107
VCC3V
0V
3
3
R125
33K
C120
0.022
X101
13MHz
VCC-3V
C146
2.79V
100K
R140
10K
S104
(VOL-)
S103
(VOL+)
0.33
Vss
0.022
VIN
VOUT
2
1
R141
C105
3V
2.8V
100K
R121
R120
KEY3
4V22
80.6K
20K
S102
MODE
R118
80.6K
R117
KEY2
20K
R143
D104
R119
402K
R116
100K
390K
R115
100K
DCC010TX
ERY32SB075V
ICP101
VCC-BATT
TUN-BUS-EN
VCC-1V7
IIC-MST-SCL
IIC-MST-SDA
TUN-AUDIO-L
TUN-AUDIO-R
VCC-3V
PWR-OFF
KEY1
KEY2
KEY3
FM-MODE
1
2
3
4
5
6
VCC-2V5
VCC-2V5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
S101
FF/PLAY/RW
A
BATTERY
AAA SIZE(LR03,AM-4)
CN101
H
MA2Z74800L
4V100
6.3V10
0V
C135
C121
0.022
R126
0V
0
0.1
C144
C109
0.01
10P
R129
0
10
EN
1
R124
18K
C125
2.49
27P
C126
47P
R128
0.0047
D103
L101
VCC-BATT
9
ADEN
LBILBO
COMP
2
0.36
R113
100K
0.01
C110
0.54
0
2.59
1.05
0
1.05
C127
0.81
2.57
R127
100K
C131
0.01
D102
B0CCAA000001
L107
16
POUT
IC102
LBP
1
3.0
L103
0.46
1.45
8
7
SW
GND
FB
3
4
0
0.49
R111
499K
R112
1.88
25
LGAIN
26
AGND
27
VCCA
28
RFI1
29
RFGND
RFI2
30
TAGC
31
32
LO0PSW
10K
C128
0.047
B0CCAA000001
15
C134
1.2M
C114
D101
L106
ONA
LBN
2
1.24
VBAT
Vout
0.1
C106
0.047
24
LIMDEC2
CPOUT
1
0.58
0.1
C103
C136
G
F
C108
IC103
C0DBAGC00022
D.D.CONVERT
E
D
C
B
TUN_ANT
C140
100P
UNR921MJ0L
Normal/City Switch
1.07V
R130
680
L105
Q104
R114
100K
C102
0.33
1.44
C141
0.01
C107
C116
22
13
XL
TRACK
4
4V47
25V68
0.047
TIFC
21
0
12
PGND
GND
5 6
0 3.0
VCC-1V7
C117
20
Vref
R131
R133
0.033
MPXO
0.67V
2.982.993.0
14
ONB
C0DBAAE00040
D.D.CONVERT
REF
3
1.24 0
0.33
C142
1.46
6
5
1.7
0.047
C115
1.88
23
LIMDEC1
IC101
C1BB00000836
FM TUNER
Vcc(VCO)
VCOTANK2
VCOTANK1
2
2.59 2.59 2.59 0 2.59 2.96
OGND
3
54
C129
0.022
A
SV-MP20V(E) SUB CIRCUIT DIAGRAM
1
2 3
4 5 6
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