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XR-VS55
Pioneer XR-VS55 User Manual
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71
XR-VS77, XR-VS55
PDK032A (VCD ASSY : IC1751)
• 1M ROM
•
Block Diagram
A16
2
MEMORY MATRIX
(131,072 x 8bit)
COLUMN SELECTOR
CE
BUFFER
OE
BUFFER
TIMING
GENERATOR
SENSE AMP
ADDRESS DECODER
ADDRESS BUFFER
OUTPUT BUFFER
A15
3
A14
29
A13
28
A12
4
A11
25
A10
23
A9
26
A8
27
A7
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
D7
21
D6
20
D5
19
D4
18
D3
17
D2
15
D1
14
D0
13
CE
22
OE
24
OE
1
/OE
1
/D.C.
1
Vcc
32
GND
16
70
72
Table of Contents
Default Chapter
1
Table of Contents
1
1 Safety Information
2
Label Check
2
Additional Laser Caution
2
Laser Interlock Mechanism
2
2 Exploded Views and Parts List
3
Packing
3
Packing Parts List
3
Contrast Table
3
Exterior
4
Front Panel Section
8
Front Panel Section Parts List
9
Mechanism VCD
10
Servo Mechanism Assy
11
Servo Mechanism Assy Parts List
11
Mechanism Unit
12
Mechanism Unit Parts List
13
3 Schematic Diagram
16
Overall Wiring Diagram
16
Fm/Am Tuner Module
18
VCD SURVO, MOTOR, SW and TRADE ASSEMBLIES
20
Af Assy
24
Secondary Assemblies
28
Primary
30
Sub Trans Assemblies
30
CD Sw Led Assemblies
32
4 Pcb Connection Diagram
34
Note for Pcb Diagrams
34
Primary Assy
42
5 Pcb Parts List
46
List of Hole Pcb Assemblies
46
Semiconductors
46
Coils and Filters
46
VCD Survo Assy
47
Motor Assy
48
Sw Assy
48
Trade Assy
48
Af Assy (Xwz3102)
48
6 Adjustment
53
Tuner Section
53
FM Tuner Section
53
AM Tuner Section
53
Cassette Deck Section
54
Mechanical Adjustment
54
Tape Speed Adjustment
54
Electrical Adjustment
54
Playback Adjustment
55
Head Azimuth Adjustment
55
Playback Level Adjustment
55
Head Azimuth Adjustment Screw
55
Recording Adjustment
56
Bias Oscillation Frequency Adjustment
56
Recording Bias Adjustment
56
Recording Level Adjustment
56
Test Mode
61
How to Start/Cancel Test Mode
61
Test Point
61
7 General Information
62
Parts
62
IC
62
Pin Function
62
Electrical Volume IC
63
Block Diagram
64
Audio IC
65
System Control Microcomputer
66
CD Dsp IC
67
1 Chip Karaoke Echo LSI
69
MPEG Decoder
69
CD Rf/Servo
70
1M Rom
71
VCD Control Microcomputer
74
Display
75
FL Display
75
Grid Assignment
75
Anode Connection
76
Disassembly
79
Front Panel
80
Mechanism VCD Additional to Job
80
Mechanism Base (Bottom View)
80
Clamper Holder
81
Actuater
81
Fitting the Pulley into the Carriage Motor
81
Block Diagram
82
8 Panel Facilities and Specifications
84
Display Section
86
Function Button Section
87
Function Auto Play
87
Remote Control Unit
88
Specifications
89
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Pioneer XR-VS55 Specifications
General
Brand
Pioneer
Model
XR-VS55
Category
Stereo Receiver
Language
English
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