Pioneer PRO-730HD Service Manual page 48

1
WAVEFORMS and VOLTAGES
Note : The encircled numbers denote measuring point in the schematic diagram.
B 1/5
A
SIGNAL ASSY
IC2201-pin 56 (Main V/Y)
4
V: 1V/div. H: 10µsec/div.
(Input : INPUT1, EIA color-bar)
B
IC2201-pin 41 (Sub V/Y)
5
V: 1V/div. H: 10µsec/div.
(Input : INPUT1, EIA color-bar)
C
IC2202 (MC14066BF)
Voltage (V) Voltage (V)
Pin Pin
8
1 4.5
9
2 4.5
10
3 4.5
4 4.5 11
12
5 0/12
13
6 0/12
14
7 0
D
B 2/5
SIGNAL ASSY
IC3901 (CXA2171Q)
Voltage (V) Voltage (V)
Pin Pin
1 2.9 17
2 2.9 18
3 2.9 19
4 1.0 20
5 1.0 21
6 0 22
E
7 2.9 23
8 2.9 24
9 2.9 25
10 1.0 26
11 1.0 27
12 5.0 28
13 2.4 29
14 2.4 30
15 3.3 31
16 2.4 32
F
48
1
2
CN2206-pin 1 (AUDIO L, signal out)
6
V: 1V/div. H: 500µsec/div.
(Input : INPUT1, 1kHz, 400mVrms,
Vol. MAX)
GND
CN2206-pin 5 (VAR L)
7
V: 1V/div. H: 500µsec/div.
(Input : INPUT1, 1kHz, 400mVrms,
Vol. 30)
GND
IC2203 (MC14066BF)
Voltage (V)
Pin Pin
4.5 8
1 4.5
4.5
2 4.5/4.8 9
4.5
3 4.5/4.8 10
4.5 4 4.8 11
0/12 12
5 0/12
0/12 13
6 0/12
12 14
7 0
IC3906 (CXA2171Q)
Voltage (V)
Pin Pin
0 33 2.9 1
1.0 34 2.9 2
0 35 2.9 3
2.9 36 1.0 4
0 37 1.0 5
0.2 38 0 6
0 39 2.5 7
0 40 5 8
2.1 41 2.9 9
2.1 42 2.9 10
1.5 43 2.9 11
5.0 44 1.0 12
3.2 45 1.0 13
0-5 46 0 14
0-5 47 2.5 15
0 48 0 16
2
3
IC2201 (CXA2069Q)
Voltage (V)
Pin
1 3.9
2 4.5
3 3.9
4 4.5
5 4.4
6 -
7 4.9
GND
8 3.9
9 4.5
10 3.9
11 4.5
12 4.4
13 -
14 4.9
15 3.9
16 4.5
GND
17 3.9
18 4.5
19 4.4
20 -
Voltage (V)
21 4.9
4.8
22 3.9
4.5/4.8
4.5/4.8
4.5
0/12
0/12
12
Voltage (V) Voltage (V)
Pin Pin
2.9 17 0 33
2.9 18 1.0 34
2.9 19 0 35
1.0 20 2.9 36
1.0 21 0 37
0 22 0 38
2.9 23 0 39
2.9 24 0 40
2.9 25 2.1 41
1.0 26 2.1 42
1.0 27 1.5 43
5.0 28 5.0 44
2.5 29 3.2 45
2.4 30 0-5 46
3.3 31 0-5 47
2.4 32 5.0 48
PRO-730HD
3
4
Voltage (V) Voltage (V)
Pin Pin
23 4.5 45 4.5
24 3.9 46 3.7
25 4.5 47 4.4
26 4.4 48 -
27 - 49 3.9
28 4.9 50 4.5
29 4.5 51 4.4
30 4.0 52 4.5
31 4.5 53 3.6
32 0 54 4.5
33 0/5 55 3.7
34 0/5 56 3.2
35 0 57 0
36 - 58 4.2
37 4.4 59 0.4
38 4.5 60 4.8
39 3.7 61 0.4
40 4.5 62 4.5
41 3.6 63 4.8
42 9.0 64 4.5
43 4.5
44 3.5
IC3907 (M52055FP)
Voltage (V) Voltage (V)
Pin
2.9 1 4.6
2.9 2 5.0
3.0 3 3.2
1.0 4 0
1.0 5 3.2
0 6 3.2
2.5 7 5.0
5 8 4.6
2.8 9 4.6
2.8 10 0
2.8 11 4.6
1.0 12 5.0
1.0 13 9.0
0 14 4.6
2.5 15 0
0 16 4.6
4