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Model
RX-D55EG
Pages
99
Size
6.64 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / PORTABLE STEREO CD SYSTEM
File
rx-d55eg.pdf
Date
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53
54
11.2. Deck Mechanism Section
G HEAD AZIMUTH ALIGNMENT
CAUTION :
• Please remove the screw-locking bond left on the head base when replacing the azimuth screw.
• After the adjustment, apply screwlock to the azimuth adjusting screw. (Screw-locking bond: RZZ0L01).
• Minimum screw-lock apply on screws must be 180
° around the screw.
G TAPE SPEED CHECKING
TEST TAPE
INDICATOR (ELECTRONIC VOLTMETER 
or OSCILLOSCOPE)
ADJUSTMENT
REMARKS
QZZCAB
(~ 3 dB)
Headphone Jack (32
Ω )
Fabricate the plug as shown in Fig.3 and 
then connect the lead wires of the plug to 
the measuring instrument.
Azimuth Screw
(Shown in Fig.4)
1. Insert the test tape (QZZCAB) and start playback at 
maximum volume & equalize at “FLAT”.
2. Adjust the azimuth screw for maximum waveform on the 
oscilloscope and the similar output on L and R channels.
3. When adjusting the azimuth in the reverse direction, 
repeat the adjustment several times because of a little slip 
on the forward direction side.
TEST TAPE
EQUIPMENT CONNECTION 
ELECTRONIC COUNTER
ADJUSTMENT
SPECIFICATION
REMARKS
QZZCWAT
(3 kHz, -10 dB)
Headphone Jack (32
Ω )
Fabricate the plug as shown in 
Fig.5 and then connect the lead 
wires of the plug to the measur-
ing instrument.
Motor VR.
(Shown in Fig.6)
3000±90Hz
1. Insert the test tape (QZZCWAT) and start playback.
2. Check the output at headphone or speaker.
55
12 Voltage Measurement & 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.
12.1. 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
0.3
0
1.6
3.2
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.6
3.4
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
1.6
0
1.6
1.7
1.7
0
3.1
1.5
3.1
3.1
0
1.6
1.5
1.6
1.9
1.9
1.7
1.8
1.8
1.7
STANDBY
1.7
3.4
1.7
1.7
1.7
0
3.4
1.5
3.4
3.4
0
1.7
1.6
1.7
1.7
1.7
1.7
1.7
1.7
1.7
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
1.2
1.8
3.2
1.2
1.3
1.3
1.7
1.7
0.9
1.5
1.5
1.5
0
3.0
1.5
0
STANDBY
0
3.4
1.6
1.7
1.7
1.8
3.4
1.2
1.2
1.2
1.7
1.7
0.9
1.1
1.1
1.6
0
3.1
1.6
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
3.2
0
0
0
0
0
3.0
1.5
3.3
1.0
0.1
3.3
0
1.6
0
1.5
3.2
0
3.3
0
STANDBY
3.4
0
0
0
3.3
0
3.3
0
3.3
0
0.1
3.3
0
1.6
3.4
1.5
3.4
0
3.4
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
3.2
0
0
0
0
0
0
0
STANDBY
0
3.4
0
0
0
0
0
0
0
0
0
0
3.4
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
7.7
4.4
3.5
3.6
3.6
3.5
3.8
3.7
3.6
7.7
0
STANDBY
1.7
0
1.7
3.3
0
0
0
0
0
7.7
4.0
4.0
3.6
3.6
3.6
3.6
3.6
3.6
7.7
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
CD PLAY
7.7
0
0
0
7.7
1.6
1.6
1.6
0
0
STANDBY
7.7
0
0
0
7.7
1.7
1.7
1.7
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
3.3
0
1.3
1.3
0.3
0
0
1.0
2.5
1.8
1.4
1.0
3.3
0
1.0
1.4
1.0
1.3
1.3
0
STANDBY
3.3
0
1.3
1.3
0.3
0
0
1.0
2.5
1.8
1.4
1.0
3.3
0
1.0
1.4
1.0
1.3
1.3
0
REF NO.
MODE
21
22
23
24
25
26
CD PLAY
1.0
0
3.3
0
1.3
0
STANDBY
1.0
0
3.3
0
1.3
0
REF NO.
MODE
E
C
B
CD PLAY
3.1
2.0
2.4
STANDBY
3.4
0
3.4
IC7003
Q7601
RX-D55EG CD SERVO P.C.B.
IC7003
IC7001
IC7001
IC7001
IC7002
IC7002
IC7001
IC7001
56
12.2. MAIN P.C.B. (1/2)
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
2.2
2.2
2.5
0
5.0
5.0
2.2
2.2
4.0
3.7
3.8
2.1
2.1
0
0
3.6
0.4
3.4
1.3
1.8
STANDBY
2.2
2.2
2.5
0
5.0
5.0
2.2
2.2
4.0
3.7
3.5
2.1
2.1
0
0
3.6
0.4
3.4
1.4
1.9
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
CD PLAY
3.9
2.2
0.9
2.0
0
2.0
2.0
0.3
0
0.6
5.0
5.0
5.0
5.0
0
1.1
STANDBY
3.9
2.1
0.9
1.9
0.9
2.0
2.0
0.2
0.1
1.0
5.0
5.0
5.0
5.0
0
1.1
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
3.1
2.9
0
3.1
3.1
3.1
0
0
0
0
0
1.5
1.5
0
1.2
1.6
3.2
1.8
3.2
0
STANDBY
3.1
2.9
0
3.1
3.1
3.1
0
0
0
0
0
1.5
1.5
0
1.2
1.6
3.2
1.8
3.2
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
0
0
0
1.3
3.3
3.2
0
1.7
3.1
3.3
3.1
0
3.2
0
1.8
0
0
3.2
STANDBY
0
0
0
0
0
1.3
3.3
3.2
0
1.7
3.1
3.3
3.1
0
3.2
0
1.8
0
0
3.2
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
3.3
3.3
0
3.2
0
0
3.1
3.3
3.4
0.4
0
2.6
0
0
0
0
0
0
0
STANDBY
0
3.3
3.3
0
3.2
0
0
3.1
3.3
3.4
0.4
0
2.6
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
2.8
2.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.3
STANDBY
0
0
0
2.8
2.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.3
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
3.3
0
0
0
0
0
3.2
0
0
3.3
3.3
0
0
3.3
1.0
0
0
3.3
STANDBY
0
3.3
3.3
0
0
0
0
0
3.2
0
0
3.3
3.3
0
0
3.3
1.0
0
0
3.3
REF NO.
MODE
1
2
3
4
CD PLAY
3.2
3.3
0
0
STANDBY
3.2
3.3
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
4.3
0
4.3
0
4.2
4.2
4.0
4.2
4.2
4.2
4.3
4.3
0
0
4.3
0
2.8
2.8
8.6
0
STANDBY
4.3
0
4.3
0
4.2
4.2
4.0
4.2
4.2
4.2
4.3
4.3
0
0
4.3
0
2.8
2.8
8.6
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
CD PLAY
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
0
4.3
0
0
STANDBY
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
0
4.3
0
0
IC2500
RX-D55EG MAIN P.C.B.
IC1
IC2500
IC2100
IC2100
IC2101
IC1
IC2100
IC2100
IC2100
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