Pioneer EFX-500, Service Manual

Page: 13 / 39

EFX-500
13
A
B
C
D
5 6 7 8
5 6
7
8
2/3
A
A
1/3
13
13
12
TP- DO3
V : 1V/div. H : 5
µ
S/div.
GND
12
SDAT, SCLK
V: 2V/div. H: 50
µ
S/div.
SDAT
SCLK
GND
GND
: AUDIO SIGNAL
: AUDIO SIGNAL (HEADPHONE)
SIGNAL ROUTE
Voltage [ V ]
No.
1
2
3
4
5
6
7
8
9
10
4.88
0
2.0 - 3.0
2.0 - 3.0
2.0 - 3.0
2.0 - 3.0
4.88
0
4.88
4.88
Voltage [ V ] No.
11
12
13
14
15
16
17
18
19
20
0 - 5
0 - 5
0 - 5
0 - 5
0.6 - 4.0
4.88
0
0
0
0
Voltage [ V ] No.
21
22
23
24
25
26
27
28 4.88
0
4.75
4.75
0
2.0 - 3.0
2.0 - 3.0
2.4
IC403 (AK4520A)
Voltage [ V ]
No.
1
2
3
4
5
6
7
8
9
10
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
Voltage [ V ] No.
11
12
13
14
15
16
17
18
19
20
0 - 5
0 - 5
0 - 5
0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
Voltage [ V ] No.
21
22
23
24
25
26
27
28 0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
4.74
IC405(SRM2B256SLMX70)
Voltage [ V ]
No.
51
52
53
54
55
56
57
58
59
60 0 - 5.0
4.74
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
Voltage [ V ]
No.
61
62
63
64
65
66
67
68
69
70
0
0 - 3.0
0 - 5.0
0
0 - 3.0
0 - 5.0
0
4.74
0
4.74
Voltage [ V ]
No.
71
72
73
74
75
76
77
78
79
80 0
0
4.74
0
0
0
0
4.74
0
0
Voltage [ V ]
No.
81
82
83
84
85
86
87
88
89
90
4.74
4.74
0
0
0.96
2.30
0
0.96
2.40
0
Voltage [ V ]
No.
91
92
93
94
95
96
97
98
99
100
4.74
0
2.30
2.40
0
2.40
0
4.74
2.5 - 3.0
2.5 - 3.0
Voltage [ V ]
No.
1
2
3
4
5
6
7
8
9
10
2.5 - 3.0
2.5 - 3.0
4.74
0 - 5.0
0 - 5.0
0 - 5.0
0
0 - 5.0
0 - 5.0
0 - 5.0
Voltage [ V ]
No.
11
12
13
14
15
16
17
18
19
20
0
0
0
0
0
0 - 5.0
0
0
4.74
4.74
Voltage [ V ]
No.
21
22
23
24
25
26
27
28
29
30 4.74
0
0 - 5.0
0
0
0
4.74
0
0
0 - 5.0
Voltage [ V ]
No.
31
32
33
34
35
36
37
38
39
40
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0
Voltage [ V ]
No.
41
42
43
44
45
46
47
48
49
50
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
0 - 5.0
4.74
4.74
0 - 5.0
0 - 5.0
4.74
IC404 (MN19413A)