Voltages - Pioneer CDJ-400 Service Manual

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10.8 VOLTAGES

Note: The voltage measured using the HOZAN DT-113 Digital Tester is an approximation of DC voltage.
A
Note that the result of measurement of a waveform comprising many AC-current components will vary from tester to tester.
Conditions of measurement:
Play back Track 2 of the STD-905 Test Disc from Pioneer.
• For the IC mounted on the SECB Assy, measurement is performed with loads at the downstream stages lifted.
• The voltage at the MPU (IC301 on the MAIN Assy) is to be measured in Standby mode (not during CD playback), because the unit
will freeze up (cannot play back a CD) if the core block is defective.
A
MAIN ASSY
IC101 DYW1763-
Pin No. Voltage (V)
1 2.2
B
2 2.1–2.4
3 0.9–1.2
4 1.7–2.0
5 1.7–1.9
6 1.9–2.2
7 2.0–2.2
8 2.1–2.4
9 0.0
10 0.0
11 2.5–2.8
12 3.3
13 0.0
14 0.0
C
15 3.3
16 0.5
17 1.2–1.5
18 2.1–2.4
19 2.1–2.4
20 1.8–2.2
21 1.9–2.2
22 1.9–2.2
23 0.9–1.1
24 2.1–2.4
25 1.9
26 3.3
D 27 0.0
28 3.3
29 0.0
30 3.3
31 0.5–0.8
32 0.5–0.9
33 0.5–0.8
34 0.5–0.8
35 0.5–0.8
36 0.4–0.7
37 3.3
38 0.7–0.8
39 0.6–0.8
E
40 0.6–0.8
41 0.8–1.0
42 0.5–0.7
43 0.4–0.6
44 0.6–0.7
45 0.5–0.7
46 0.0
47 3.3
48 1.3–1.5
F
64
1
2
IC105 DSPC56371AF180
Pin No. Voltage (V) Pin No.
1 0.0 41
2 0.0 42
3 3.3 43
4 0.0 44
5 0.0 45
6 0.0 46
7 0.8 47
8 1.3 48
9 0.0 49
10 0.0 50
11 0.0 51
12 0.0 52
13 0.0 53
14 0.0 54
15 0.0 55
16 0.0 56
17 3.3 57
18 0.0 58
19 0.0 59
20 0.0 60
21 0.0 61
22 0.0 62
23 3.3 63
24 0.0 64
25 3.3 65
26 0.0 66
27 0.0 67
28 0.0 68
29 1.3 69
30 1.1 70
31 3.0 71
32 0.0 72
33 3.0 73
34 0.0 74
35 2.6 75
36 0.0 76
37 3.3 77
38 0.0 78
39 3.3 79
40 0.0 80
IC109 TC7W04FU
Pin No. Voltage (V)
1 0.0
2 1.7
3 0.0
4 0.0
5 3.3
6 1.6
7 3.3
8 3.3
CDJ-400
2
3
IC502 TC94A15FG
Voltage (V)
Pin No. Voltage (V)
3.3
1
0.0
2
0.0
3
1.3
4
1.7–1.8
5
1.2
6
3.3
7
0.6
8
3.3
9
0.6
10
3.3
11
1.3
12
0.0
13
0.0
14
0.0
15
0.0
16
0.0
17
0.0
18
1.0
19
3.2
20
1.6
21
0.0
22
1.7
23
3.3
24
0.0
25
0.0
26
0.0
27
0.0
28
1.6
29
1.6
30
1.3
31
0.0
32
1.6
33
0.0
34
3.3
35
1.7
36
1.6
37
1.6
38
1.6
39
0.0
40
41
42
43
44
45
46
47
48
49
50
3
4
Pin No. Voltage (V)
0.0 51 1.6
2.9–3.3 52 0.0
0.0 53 2.4
3.3 54 1.6
0.0 55 1.5
0.0 56 1.8
0.0 57 1.7
0.0 58 1.6
0.0 59 3.3
0.0 60 1.6
3.3 61 1.6
0.0 62 1.6
3.3 63 1.6
1.6 64 2.0
1.6 65 0.0
1.6 66 0.0
1.6 67 0.7–1.0
1.4 68 0.0
1.6 69 0.0
0.6 70 3.3
1.6 71 0.0
1.6 72 0.0
1.6 73 1.6
0.0 74 1.5
1.7 75 3.3
1.6 76 0.0
1.6 77 1.6
1.6 78 3.3
3.3 79 0.0
1.5 80 1.6
1.6 81 0.0
1.5 82 0.0
1.6 83 0.0
0.0 84 3.2
1.6 85 3.2
1.3 86 3.2
1.3 87 3.2
3.3 88 3.2
0.0 89 2.8–3.0
3.3 90 3.3
2.4 91 3.3
0.2 92 1.8–2.4
0.0 93 3.3
1.8 94 0.0
1.7 95 3.3
1.7 96 0.0
1.7 97 1.7
1.8 98 1.7
1.8 99 1.7
– 100 0.0
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