3-27
3-28
VCR VOLTAGE SHEET (IC&TR)
MODE
IC501
IC301
IC801
IC302
STOP PLAY
STOP PLAY
STOP PLAY
STOP PLAY
PIN NO.
1
0.9
0
2.2
2.17
0
0
1.78
2.78
2
4.85
4.85
2.2
2.17
0
2.53
0
0
3
0
0
2.2
2.17
9.12
9.06
2.85
2.84
4
0.1
0.1
2.2
2.17
2.48
2.48
0
0
5
0.1
0.1
2.2
2.19
4.8
4.79
2.8
2.83
6
0
0
2.2
2.2
0
2.08
4.73
4.71
7
0.1
0
2.2
0
1.76
0
2
2.02
8
0.1
0
2.2
2.2
0
2.2
0
0
9
0.3
0.9
2.2
2.2
0
0
10
0.68
0.85
2.2
2.2
0
0
11
0.02
3.19
4.7
4.67
0
2.5
12
0.02
0
0.99
0.98
2.5
2.66
13
0.02
0
0.99
0.96
1.72
2.5
14
3.8
3.8
1.85
1.76
2.5
4.74
15
0
2.3
1.54
0.36
4.76
2.52
16
4.47
0
0
0
2.52
0
17
0.15
0
2
2.44
0
0.39
18
4.77
2.38
2.4
2.47
0.56
2.66
19
4.77
2.38
0
0
2.52
2.66
20
4.06
0
2.4
3.33
2.52
2.66
21
4.05
0.1
1.7
2.55
2.52
2.66
22
0
4.85
2.8
3.09
2.52
0
23
0
4.82
4.7
4.7
0.17
2.07
24
0
0
0
0
2.02
0
25
4.84
0
4.03
0
0
2.07
26
4.77
2.5
2.15
2.2
2.02
2.07
27
0
0
1.46
1.8
2.02
0
28
0
0
2.13
2.1
0
0
29
0
0
1.7
2.24
3.33
2.84
30
0
0
2.13
2.13
0
2.84
31
2.5
2.6
4
4
2.52
3.56
32
4.19
4.17
2.13
2.13
4.72
4.71
33
4.23
4.17
2.35
2.35
2.35
2.33
34
0
0
2.8
3.1
2.35
0
35
1.48
1.5
2.77
2.82
0
0
36
1.48
1.4
2.1
2.1
4.76
4.74
37
4.29
4.7
2.17
2.66
4.76
4.74
38
2
2
0
0
4.76
4.74
39
2.11
2
1.72
1.23
4.76
2.33
40
0
0
0
0
4.6
0
41
0
0.1
0.84
0.83
2.52
2.64
42
0
0
2.15
2.15
2.52
2.61
43
0
0
0
0
2.54
2.65
44
2.1
2.2
4.69
4.67
2.54
2.65
45
2.2
2.2
4.72
4.7
0.57
0.41
46
0
0
2.11
2.94
4.76
4.74
47
1.3
1.2
2.84
3.65
2.5
0
48
0
0
2.8
4.23
1.75
2.62
49
0
0
3.79
3.77
3.78
0
50
0.9
2.3
0
2.29
0
0
51
0
0.2
2.11
2.1
1.79
0
52
1.5
2.3
0
4.7
1.22
0
53
4.7
4.7
4.18
4
3.81
0
54
0
1.9
4.18
4.8
9.12
9.06
55
2.17
2.7
0.68
0.8
6.22
0.22
MODE
IC501
IC301
IC801
IC302
STOP PLAY
STOP PLAY
STOP PLAY
STOP PLAY
PIN NO.
56
0.9
2.2
0
0
2.96
0.23
57
0
0
3.07
2.36
2.16
2.1
58
0
0
4.43
0
4.53
0
59
0
0
0.35
0.29
2.54
2.53
60
2.5
2.3
0.65
0.19
3.81
0
61
4.6
4.5
1.07
2.23
3.13
0.22
62
4.3
4.3
0
0
3.86
0
63
4.4
0.1
3.72
3.7
3.8
0
64
0
0.1
0.97
1.23
2.45
0
65
1.1
0.8
1.66
0.72
3.84
0.29
66
4.7
4.75
1.66
0.72
4.03
0.3
67
4.7
4.75
1.66
0.72
3.85
0.3
68
4.7
3.8
1.66
4.62
3.85
0.3
69
4.7
4.7
4.7
4.68
0
0
70
4.2
4.1
0
0
0
0
71
4.8
4.76
0
0
0
0
72
4.8
4.76
1.65
1.65
3.85
0.3
73
4.4
4.4
1.65
1.65
3.85
0
74
0
0
1.65
1.65
0
2.49
75
4.7
0
0
0
3.85
0.2
76
0
2.4
2.19
0
3.15
0.2
77
0
2.4
4.72
4.7
0
0
78
4.5
4.4
2.19
2.18
4.45
4.33
79
4.6
4.6
0
0
0
0
80
0
3.2
2.19
2.18
4.45
4.32
81
0
0
82
3.3
3.3
83
4.4
0
84
0
0
85
1.3
1.2
86
0
1.2
87
3.5
2.18
88
0
0
89
0
0.19
90
0
1.25
91
2.3
2.35
92
0
2.35
93
0
0
94
2.3
2.32
95
2.3
2.32
96
0
2.34
97
0.6
0
98
4.7
4.69
99
0
4.77
100
0.6
0.8
Summary of Contents for XBS341 Series
Page 1: ...SERVICE MANUAL MODELS XBS341...
Page 10: ...2 1 SECTION 2 AUDIO PART...
Page 12: ...3 2 VCR ELECTRICAL TROULBESHOOTING...
Page 13: ...3 3...
Page 27: ...SECTION 4 MECHANSIM OF VCR PART...
Page 39: ...4 12...
Page 41: ...4 14...
Page 51: ...4 24...
Page 58: ...5 1 DVD ELECTRICAL TROUBLESHOOTING 1 Test debug flow SECTION 5 DVD PART...
Page 59: ...5 2...
Page 60: ...5 3...
Page 61: ...5 4...
Page 62: ...5 5...
Page 63: ...5 6...
Page 67: ...5 10 2 Tray close waveform 3 Tray open waveform...
Page 69: ...5 12 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION 7 DISC TYPE JUDGEMENT WAVEFORM...
Page 70: ...5 13...
Page 71: ...5 14 8 FOCUS ON WAVEFORM...
Page 72: ...5 15 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION...
Page 73: ...5 16 10 TRACKING CONTROL RELATED SIGNAL System checking...
Page 74: ...5 17 11 RF WAVEFORM 12 MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT ASPDIF...
Page 75: ...5 18 13 MT1379 VIDEO OUTPUT WAVEFORM 1 Full colorbar signal CVBS 2 Y...
Page 76: ...5 19 3 C 14 AUDIO OUTPUT FORM AUDIO DAC 1 Audio related Signal...
Page 77: ...5 20 MEMO...
Page 80: ...2 2 2 3 BLOCK DIAGRAM...
Page 81: ...2 4 2 5 AUDIO SHEMATIC DIAGRAMS U COM SCHEMATIC DIAGRAM...
Page 82: ...2 6 2 7 FUNCTION POWER SCHEMATIC DIAGRAM...
Page 83: ...2 8 2 9 MAIN AMP SCHEMATIC DIAGRAM...
Page 84: ...2 10 2 11 WIRING DIAGRAM...
Page 86: ...2 14 2 15 PRINTED CIRCUIT DIAGRAM MAINAMP FRONT P C BOARD SOLDER SIDE...
Page 87: ...2 16 2 17 MAINAMP FRONT P C BOARD COMPONENT SIDE...
Page 88: ...2 18 2 19 FUNCTION POWER P C BOARD SOLDER SIDE...
Page 89: ...2 20 2 21 FUNCTION POWER P C BOARD COMPONENT SIDE...
Page 90: ...3 17 3 18 VCR SHEMATIC DIAGRAMS SYSTEM SCHEMATIC DIAGRAM...
Page 91: ...3 19 3 20 A AUDIO V VIDEO SCHEMATIC DIAGRAM...
Page 93: ...3 23 3 24 HIFI TUNER SCHEMATIC DIAGRAM...
Page 94: ...3 25 3 26 A V JACK SCART SCHEMATIC DIAGRAM...
Page 96: ...3 29 3 30 PRINTED CIRCUIT DIAGRAMS TUNER P C BOARD...
Page 97: ...3 31 3 32 VCR P C BOARD...
Page 98: ...3 33 3 34 VCR P C BOARD...
Page 99: ...5 22 5 21 DVD PART SCHEMATIC DIAGRAMS MPEG SCHEMATIC DIAGRAM...
Page 100: ...5 23 5 24 SERVO SCHEMATIC DIAGRAM...
Page 101: ...5 25 5 26 AUDIO SCHEMATIC DIAGRAM...
Page 102: ...5 27 5 28 INTERFACE SCHEMATIC DIAGRAM...
Page 103: ...5 29 5 30 VOLTAGE SHEET IC TR...
Page 104: ...5 31 5 32 PRINTED CIRCUIT DIAGRAM DVD P C BOARD SOLDER SIDE...
Page 105: ...5 33 5 34 DVD P C BOARD COMPONENT SIDE...
Page 107: ...MEMO MEMO...
Page 109: ...MEMO MEMO...
Page 115: ......
