Sony DVP-FX730 / DVP-FX735 Service Manual ▷ View online
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DVP-FX721/FX730/FX735
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There are a few cases that the part isn’t mounted in this model is printed on this diagram.
: Uses unleaded solder.
4-4. KEY BOARD • See page 1-4 for circuit boards location.
5-1
DVP-FX721/FX730/FX735
5-1. WAVEFORMS
SECTION 5
WAVEFORMS AND CIRCUIT VOLTAGE
1. Spindle control waveform (No disc condition)
SP- (U5 PIN12)
DMSO/ (U5 PIN4)
SP+ (U5 PIN11)
Fig 5-1
Fig 5-3
TRO (U3 PIN24)
TRSO (U5 PIN26)
2. Tracking control relate signal (system checking-cd)
Fig 5-2
Fig 5-4
AUDIO OUT (J4 PIN2/3)
TRO (U4 PIN24)
TRSO (U5 PIN26)
4. Audio output from IC (L/R)
3. Tracking control relate signal (system checking-dvd)
DVP-FX721/FX730/FX735
5-2
Fig 5-6
Fig 5-5
Fig 5-7
DIN (U4 PIN104)
5. Video output waveform (CVBS)
B U4 (PIN108)
G U4 (PIN107)
R U4 (PIN109)
6. Video output waveform (R/G/B)
DVDRFIP (U4 PIN125)
7. RF waveform
9.
VCOM
Check point :
U3 C4558 1pin (VCOM)
U3 C4558 1pin (VCOM)
Spec : 5.5 ± 0.5Vpp
DVP-FX721/FX730/FX735
5-3
DVP-FX721/FX730/FX735
5-2. CIRCUIT VOLTAGE CHART
PIN
STOP(V) PLAY(V)
PIN
STOP(V) PLAY(V)
PIN
STOP(V) PLAY(V)
PIN
STOP(V) PLAY(V)
PIN
STOP(V) PLAY(V)
1
2.167
2.072
33
3.068
3.068
65
1.786
1.795
97
3.208
3.207
1
1.402
1.403
2
2.147
2.082
34
0
0
66
1.584
1.605
98
0.016
0.017
2
5.15
5.148
3
2.166
2.086
35
0.952
0.007
67
0.015
0.042
99
1.325
1.325
3
2.052
2.032
4
2.052
2.072
36
3.275
3.275
68
3.288
3.288
100
3.288
3.288
4
1.621
1.637
5
2.05
2.048
37
1.32
1.275
69
0.041
0.069
101
3.288
3.288
5
2.053
2.038
6
2.048
2.047
38
0.882
1.224
70
0.041
0.026
102
0
0
6
0
0
7
1.778
1.777
39
1.095
1.05
71
1.114
1.143
103
0
0
7
0
0
8
3.299
3.299
40
3.299
3.299
72
1.591
1.601
104
0.961
0.937
8
5.169
5.167
9
0.703
0.621
41
3.299
3.299
73
1.597
1.611
105
3.288
3.288
9
0.006
0.007
10
0.697
0.701
42
0.007
0.008
74
1.038
1.051
106
3.288
3.288
10
0.006
0.007
11
0
0
43
3.294
3.294
75
3.242
3.251
107
3.288
3.288
11
3.788
3.801
12
2.014
2.022
44
2.722
2.722
76
3.116
3.251
108
0.357
0.356
12
1.243
1.247
13
1.408
1.408
45
1.437
1.256
77
3.211
3.201
109
0.349
0.349
13
2.555
2.556
14
0
0
46
0.997
1.016
78
0.928
0.893
110
0
0
14
2.459
2.461
15
0.003
0.176
47
0.965
0.996
79
0
0
111
0
0
15
2.509
2.497
16
0.005
0.176
48
0.904
1.334
80
0.933
0.896
112
1.453
1.453
16
2.528
2.545
17
3.3
3.299
49
1.448
1.11
81
0.035
0.046
113
1.358
1.358
17
2.502
2.461
18
3.494
2.493
50
3.299
3.299
82
0.167
0.177
114
3.299
3.299
18
2.542
2.627
19
3.303
3.303
51
0.683
0.845
83
0.97
1.043
115
3.299
3.299
19
5.17
5.168
20
2.14
2.041
52
0.552
0.9
84
3.288
3.288
116
1.277
1.27
20
1.637
1.61
21
1.377
1.279
53
0.927
1.214
85
0.987
2.428
117
0
0
21
2.579
2.578
22
3.229
3.228
54
1.775
1.773
86
1.013
1.52
118
1.614
1.615
22
0
0
23
0.021
0.021
55
2.289
1.745
87
3.301
3.301
119
1.612
1.612
23
1.402
1.366
24
1.403
1.395
56
0.612
0.95
88
1.992
1.993
120
1.624
1.618
24
5.148
5.147
25
1.397
1.4
57
1.458
1.495
89
3.289
3.288
121
3.301
3.299
25
5.149
5.148
26
3.301
3.3
58
1.52
1.372
90
1.778
1.776
122
3.301
3.299
26
1.407
1.404
27
0.018
0.019
59
1.445
1.268
91
3.296
3.294
123
1.788
1.789
27
1.407
1.408
28
0.018
0.019
60
0
0
92
3.286
3.285
124
0
0
28
3.23
3.228
29
3.301
3.299
61
1.038
1.363
93
3.294
3.293
125
0.974
0.974
30
0
0
62
1.023
0.943
94
0.019
0.019
126
0.975
0.975
31
0
0
63
0.947
0.998
95
0.238
0.239
127
1.576
1.568
32
1.788
1.789
64
1.462
1.124
96
0.284
0.284
128
1.516
1.503
U4(MT1389 MPEG)
U4(MT1389 MPEG)
U5 (AM5888)
U4(MT1389 MPEG)
U4(MT1389 MPEG)
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