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Model
SA-PM23P SA-PM23PC
Pages
91
Size
19.63 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / CD STEREO SYSTEM
File
sa-pm23p-sa-pm23pc.pdf
Date
PREV: Panasonic SA-PM22GN / SA-PM22GT Service Manual

Panasonic SA-PM23P / SA-PM23PC Service Manual ▷ View online

14 Voltage Measurement and Waveform Chart
Note:
     ·    Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance)
with the chassis taken as standard.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
     ·    Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point
because it may differ from actual measuring value due to difference of Measuring instrument and its measuring condition
and product itself.
14.1. Voltage Measurement
14.1.1. CD Servo P.C.B.
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD  PLAY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.3
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CD PLAY
0
0
1.6
1.6
1.8
0
3.3
1.5
0
3.3
0
1.6
0
1.6
2.1
2.1
1.8
1.8
1.8
1.8
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
CD PLAY
0.2
2.4
1.9
1.7
1.1
1.1
3.3
1.1
1.2
1.3
1.7
1.7
0.8
1.5
1.4
1.5
0
3.0
1.5
0
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
CD  PLAY
3.3
0
0
0
0
0
3.4
0
3.5
0
0
3.5
0
1.6
0
1.5
3.3
0
0
1.6
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
CD  PLAY
0
3.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD  PLAY
1.6
0
1.6
0
0
0
0
0
0
0
0
0
0
3.6
3
4.1
0
0
7.7
0
STANDBY
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
21
22
23
24
25
26
27
28
CD PLAY
7.7
0
7.7
0
7.7
1.6
1.6
1.6
STANDBY
0
0
0
0
0
0
0
0
Ref No.
MODE
E
C
B
CD PLAY
3.2
2
2.4
STANDBY
0.4
0.4
0.4
Q7601
IC7001
IC7001
IC7002
IC 7002
CD SERVO P.C.B.
IC7001
IC7001
IC7001
45
SA-PM23P / SA-PM23PC
14.1.2. Main/Power P.C.B.
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
CD  PLAY
20.9
10.2
0
20.2
5
0
0
0
0
10.1
0
10.1
STANDBY
 
3.2
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
1
2
3
4
5
6
7
8
CD  PLAY
5
5
5
0
5
0
0
9.7
STANDBY
0
0
0
0
0
0
0
0
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
4.7
4.8
4.7
4.8
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
0
0
0
9.5
0.7
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
CD PLAY
0.7
4.8
4.8
4.8
4.8
4.8
4.8
4.7
4.8
4.7
4.8
4.8
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
Ref No.
MODE
1
2
3
4
5
CD PLAY
5.7
0
5.7
0
3.3
STANDBY
0
0
0
0
0
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
0
5.2
5.2
5.2
5.2
3.2
1.1
0
0
5.2
5.2
2.6
2.6
0
2.2
2.6
0
0
0
0
STANDBY
0
5.2
5.2
5.2
3.8
5.2
0
1.1
0
0
5.2
5.2
2.6
2.7
0
2.2
2.6
0
0
0
Ref No.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CD PLAY
5.0
1.3
4.9
0
5
5.2
3.1
0
5.7
5.6
0.3
0.8
0.5
5.2
0
5.1
5.1
0
0
0
STANDBY
0
0
0
0
0
0
5.2
3.1
5.2
0
0
0
0
5.2
0
0
0
0
0
0
Ref No.
MODE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
CD PLAY
2.8
0.5
0
0.3
0.1
0
0.1
0
5.1
2.6
0
0.4
5.1
0
0
0
0
0
0
0
STANDBY
0
0
0
0
0
0
0
0
0
0
2.6
0
0
0
0
0
0
0
0
0
Ref No.
MODE
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
CD  PLAY
0
0
0
0
0
0
0
0
0
0
0
0
0
5.2
0.5
0
0
4.8
0
0
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5.2
0.5
0
0
4.9
0
Ref No.
MODE
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
CD  PLAY
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
5.2
5.2
0
0.3
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
5.2
1.9
0
0
5.2
5.2
5.2
5.2
Ref No.
MODE
1
2
3
4
5
6
7
8
CD  PLAY
0
5.2
0
0
0
0
0
0
STANDBY
0
5.2
0
0
0
0
0
0
Ref No.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
CD PLAY
0
0
0
0
0
0
0
0
0
0
0
0
20.9
17.8
20.9
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
2.3
2.9
2.4
Ref No.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
CD PLAY
9.3
17.8
4.9
7.7
9.8
2.3
7.7
9.8
2.3
4.3
9.8
4.9
7.7
5.7
7
STANDBY
2.9
2.9
3.7
0
0
0
2.1
0.1
2.9
2.9
0.1
0
0
0
0
Ref No.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
 
E
C
B
CD PLAY
9.8
0
9.8
0
9.8
0
0
5.6
0
0
1.2
1.2
 
0
0
0
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
Ref No.
MODE
E
C
B
E
C
B
E
C
B
CD PLAY
0
5.2
0
0
9.8
0
0
9.8
0
STANDBY
0
5.2
0
0
0
0
0
0
0
Q500
Q804
Q807
Q808
Q221
Q222
Q421
Q422
Q505
Q750
Q751
Q801
Q802
Q803
Q501
Q502
Q503
Q504
IC803
IC803
IC803
IC804
IC800
IC802
IC803
IC803
MAIN/POWER P.C.B. 
IC300
IC700
IC800
14.1.3. Panel P.C.B.
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD  PLAY
0
0
0
0
0
0
0
0
0
0
0
0
0
-19.2
-19.1
-19.1
-19.1
-19.1
-19.1
-19.1
STANDBY
0
0
0
0
3.3
5.7
0.1
0.2
2.5
0.4
0.4
0
5.7
-21.6
-21.6
-19.5
-15.4
-15.
4
-13.3
-
Ref No.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CD PLAY
-18.9
-18.9
-18.8
-18.8
-18.8
-18.8
-18.8
-18.8
-18.8
-18.8
-18.8
-18.8
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
STANDBY
-21.5
-21.5
-17.4
-15.4
-21.5
-21.5
-21.5
-13.3
-13.3
-21.9
-15.6
-19.7
-19.7
-19.7
-19.7
-19.7
-19.7
-19.7
-19.7
-19.7
Ref No.
MODE
41
42
43
44
CD PLAY
0.4
0.4
0
0
STANDBY
-19.7
-19.7
5.7
0
IC 900
IC 900
PANEL P.C.B. 
IC 900
46
SA-PM23P / SA-PM23PC
14.1.4. Transformer P.C.B.
Ref No.
MODE
E
C
B
 
E
C
B
 
E
C
B
 
E
C
B
 
CD 
PLAY  0  0.2 0.8 
5.9 7.4 6.6 
0  3  1.5 
-21.9 
-27.9 
-22.5
STANDBY 
0 6 0 
6 6.9 
6.7 
0 3 1.5 
-16.9 
-17.2 
-17.1
TRANSFORMER P.C.B.
Q600 Q601 Q602 Q603
14.1.5. Deck P.C.B.
Ref No.
MODE
1
2
3
4
5
CD  PLAY
0
0
0
0
0
STANDBY
0
0
0
0
0
Ref No.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
0
0.3
0.3
0.1
0
0
0
0.1
0
0
0
0
0
0
0.1
0
0
0
0.1
0.3
STANDBY
0
0.3
0.3
0.1
0
0
0
0.1
0
0
0
0
0
0
0.1
0
0
0
0.1
0.3
Ref No.
MODE
21
22
CD PLAY
0.3
0
STANDBY
0.3
0
Ref No.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
CD PLAY
0
0
0.7
 
0
0
0.7
9.8
9.7
0
0
0
0
0
0
0
STANDBY
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
Ref No.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
 
E
C
B
CD  PLAY
0
0
0
0
0
0
0
0
0
3
3
0.5
3
1.7
9.1
STANDBY
0
0
0
0
0
0
0
0
0
2.2
2.2
0.3
2.2
2.2
1.5
Ref No.
MODE
E
C
B
E
C
B
CD PLAY
1.7
1.7
2.4
0
0
0
STANDBY
2.1
2.1
2.2
0
0
0
Q1316
Q1317
Q1310
Q1312
Q1314
Q1315
IC1001
IC1001
Q1101
Q1201
Q1302
Q1303
Q1304
Q1309
DECK P.C.B. 
IC1000
14.1.6. Deck Mechanism P.C.B.
Ref No.
MODE
1
2
3
4
CD PLAY
0
5.1
1.7
0
STANDBY
0
5.2
2.1
0
DECK MECHANISM P.C.B. 
IC971
47
SA-PM23P / SA-PM23PC
14.2. Waveform
TP 4
CD PLAY
3.48Vp-p (10msec.div)
TP 7
CD PLAY
3.96Vp-p (10usec.div)
TP 50
CD PLAY
400mVp-p (5usec.div)
TP 51
CD PLAY
400mVp-p (10usec.div)
CN90 PIN 3
CD PLAY
4.88Vp-p (10msec.div)
CN90 PIN 4
CD PLAY
4.12Vp-p (10msec.div)
CN801 PIN 4
CD PLAY
3.48Vp-p (5msec.div)
CN801 PIN 5
CD PLAY
3.32Vp-p (25msec.div)
CN801 PIN 6
CD PLAY
3.8Vp-p (5msec.div)
CN801 PIN 7
CD PLAY
4.16Vp-p (10msec.div)
CN801 PIN 8
CD PLAY
3.92Vp-p (10usec.div)
CN802 PIN 1
CD PLAY
5.44Vp-p (25usec.div)
TP 8
CD PLAY
3.76Vp-p (10msec.div)
CN802 PIN 2
CD PLAY
5.52Vp-p (50usec.div)
CN802 PIN 3
CD PLAY
5.36Vp-p (50msec.div)
WH505A PIN 1
CD PLAY
5.28Vp-p (10msec.div)
48
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