Panasonic SA-PM23P / SA-PM23PC Service Manual ▷ View online
(All schematic diagrams may be modified at any time with
the development of new technology)
Note :
S900
the development of new technology)
Note :
S900
Stop/-Demo switch
S901
CD switch
S902
Tape switch
S903
Tuner/Band switch
S904
FF switch
S905
REW switch
S906
Power switch
S907
Tape_Eject switch
S908
Bass/Treble switch
S909
Rec switch
S910
Music Port switch
S971
Mode switch
S972
Half switch
S973
CR02 switch
S975
Recinh_F switch
S1000
CD Open/Close switch
S7201
Reset switch
VR900
Volume VR
· The voltage value and waveforms are the reference voltage
of this unit measured by DC electronic voltmeter (high
impedance) and oscilloscope on the basis of chassis.
Accordingly, there may arise some error in voltage values
and waveforms depending upon the internal impedance of
the tester or the measuring unit.
impedance) and oscilloscope on the basis of chassis.
Accordingly, there may arise some error in voltage values
and waveforms depending upon the internal impedance of
the tester or the measuring unit.
· Importance safety notice :
Components
identified
by
mark
have
special
characteristics important for safety. Furthermore, special
parts which have purposes of fire-retardant (resistors), high-
quality sound (capacitors), low-noise (resistors), etc. are
used. When replacing any of components, be sure to use
only manufacturer´s specified parts shown in the parts list.
parts which have purposes of fire-retardant (resistors), high-
quality sound (capacitors), low-noise (resistors), etc. are
used. When replacing any of components, be sure to use
only manufacturer´s specified parts shown in the parts list.
Caution !
IC, LSI and VLSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
· Cover the parts boxes made of plastics with aluminium foil.
· Put a conductive mat on the work table.
· Ground the soldering iron.
· Do not touch the pins of IC, LSI or VLSI with fingers directly.
IC, LSI and VLSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
· Cover the parts boxes made of plastics with aluminium foil.
· Put a conductive mat on the work table.
· Ground the soldering iron.
· Do not touch the pins of IC, LSI or VLSI with fingers directly.
17 Schematic Diagram
57
SA-PM23P / SA-PM23PC
58
SA-PM23P / SA-PM23PC
17.1. CD Servo Circuit
: CD-DA SIGNAL LINE
SCHEMATIC DIAGRAM - 1
CD SERVO CIRCUIT
: +B SIGNAL LINE
: CD SIGNAL LINE
C
C
C
C
LASER DIODE
11
12
6
8
2
3
OPTICAL
PICKUP CIRCUIT
12
11
10
2
4
6
8
9
7
5
3
1
13
14
15
16
GND
VCC
AIN
BIN
VREF
NAOUT
GND
NBOUT
1
2
3
4
5
6
7
8
10
5
4
9
C
CN7002
11
1
REST SW
LOADING
LOADING
/RST
BLKCK
MLD
MDATA
MCLK
PGND
+7.5V
TX
LD SW
D.GND
+3.3V
RCH OUT
A.GND
S7201
REST SW
C7243
0.1
C7102 0.47
C7203
6.3V220
C7204 0.1
C7107 0.022
R7217
1K
LCH OUT
C7232
R7218
1K
W7005
0
C7225
1000P
C7227
50V1
C7228
50V1
D7650
MAZ80560ML
C7226
1000P
C7166
0.01
C7264
0.1
STAT
C7142 3300P
C7223 50V4.7
C7218
0.082
C7241
1000P
R7211
82K
C7216
680P
C7161
0.1
W7020 0
W7022 0
R7212
820
C7244 0.015
C7217 0.1
C7154
C7155
C7155
R7111 10K
0.1
0.1
0.1
R7221 100
C7230 0.1
C7231 6.3V220
R7254
1K
R7253
10
R7220
1M
C7234 0.1
16
1
2
3
4
5
6
14
12
10
8
7
9
11
13
15
TO
MAIN/POWER CIRCUIT
(CN801) ON SCHEMATIC
DIAGRAM-2
4
R7601
4.7
Q7601
Q7601
B1ADCF000001
LASER POWER DRIVE
GND
GND
F-
T+
T-
LPD
VREF
B
GND
LD GND
LD
E
F
VCC
C7601
6.3V33
R7650
5.6
W7025
0
W7023 0
W7026 0
W7024 0
C7614
6.3V100
C7613 0.1
M7301
TRV
MOTOR
M7302
SRL MOTOR
R7331
22K
R7328 10K
W7021 0
W7017 0
R7349
18K
W7016
0
W7014
0
W7018
0
W7019
0
R7330
5.6K
R7332
1K
C7339
R7329 1K
C7338
0.056
C7315
0.47
R7323
3.3K
R7327
1K
R7335
100
C7335
0.1
C7334
10V220
R7336
10
F+
C7670
0.1
C7626
0.1
R7315
3.3K
R7325 330
IC7002
BA5948FPE2
4 CH DRIVE
VCC
NC
NC
NC
IN3
IN4
VREF
NC
GND
GND
PVCC2
PGND2
D4+
D4-
D3+
D3-
PGND1
PVCC1
NC
D2+
D2-
D1+
D1-
IN1
NC
NC
PC2
PC1
IN2
NC
3
4
5
6
24
25
26
27
28
8
1
2
23
21
9
20
10
19
1
11
18
2
13
17
16
15
22
7
14
R7339
1K
A
12
11
10
2
4
6
8
9
7
5
3
1
13
14
15
16
CN7001
CP701
1
2
3
4
5
6
7
8
9
26
27
28
29
30
31
32
33
34
67 68 69 70 71 72 73 74 75
92
93
94
95
96
97
98
99
93
94
95
96
97
98
99
100
10
66
35
91
11
65
36
90
12
64
13
63
37
89
38
88
14
62
15
61
16
60
39
87
40
86
41
85
17
59
18
58
19
57
20
56
42
84
43
83
44
82
45
81
21
55
22
54
23
53
24
52
25
51
46
80
47
79
48
78
49
77
50
76
NTEST2
PRAMVDD15
PRAMVDD33
PC
DQSYTXT
SMCK
PMCK
NSR
VMONON
PD
LD
E
A
C
C
F
B
D
D
DVSS2
IOVDD1
DVDD2
EXT2
EXT1
NRST
FLAG
ST
AT
MCLK
TX
BLKCK
M
D
ATA
MLD
EXT0
IOVDD2
NTEST
FOP
TR
VP
SPOUT
TRP
DVSS1
SDRCK
BA0
BA1
PRAMVSS33
A10
A1
1
NRAS
NCAS
NWE
A8
A7
A9
A5
A3
A1
A0
A2
A4
A6
CENV
RFENV
SRVMON1
CTRCRS
SRVMON0
AVSS2
OSCIN
VREF
DVDD1
RFIN
RFOUT
RFOUT
D10
D12
DRVDD
D15
D0
D4
D6
D7
D7
D5
D3
D2
D1
D1
D14
D13
D11
D8
D9
X2
X1
X1
ARFDC
ARFOUT
AVDD2
ARFFB
PLLF0
AV
D
D
1
DVSS3
OUTR
AV
SS1
ARFIN
IREF
OUTL
PLLF
DSLF
IC7001
MN6627954MA
SERVO PROCESSOR/
DIGITAL SIGNAL PROCESSOR/
DIGITAL FILTER D/A CONVERTER
17
0.1
6.3V220
C7263
0.1
X7201
H2B1695000005
R7215
470
C7235
16V10
C7165
10
C7164
10
M
M
0.018
C7352
0.018
C7233
W7006
0
W7007
0
W7008
0
W7009
0
W7010
0
SA - PM23P/PC CD SERVO CIRCUIT
W7027
0
W7013 0
W7015 0
W7012 0
W7004
0
W7002
0
W7003
0
W7001
0
W7011
0
C7253
470P
R7028
0
18
8
31
13
7
9
19
17
14
3
2
10
37
36
39
38
50
51(RF)
24
16
SA-PM23P / SA-PM23PC
59
SA-PM23P / SA-PM23PC
60
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