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DVD VCR Combo
DVD755VR
Page 2 (Section 1 Summary)
Philips DVD755VR - Section 1 Summary; Section 3 Electrical
154 pages
Manual
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CONTENTS
SECTION 1
. . . .
SUMMAR
Y
SECTION 2
. . . .
CABINET & MAIN CHASSIS
SECTION 3
. . . .
ELECTRICAL
SECTION 4
. . . .
MECHANISM OF VCR P
ART
SECTION 5
. . . .
MECHANISM OF DVD P
ART
SECTION 6
. . . .
REPLACEMENT P
ARTS LIST
1
3
Table of Contents
Main Page
Section 1 Summary
3
Section 1 Summary
2
Section 3 Electrical
2
Product Safety Servicing Guidelines for Video Products
4
Servicing Precautions
5
Service Information for Eeprom IC Setting
6
Specifications
7
Directions for Use
8
Section 2 Cabinet & Main Chassis
27
Exploded Views
28
Cabinet and Main Frame Section
28
Packing Accessory Section
29
Section 3 Electrical
30
Default Chapter
30
Table of Contents
30
Overall Wiring Diagram
31
Overall Block Diagram
32
Vcr Part
32
Electrical Adjustment Procedures
32
Electrical Troubleshooting Guide
33
Power(Smps) Circuit
33
System/Key Circuit
36
Servo Circuit
37
Y/C Circuit
40
Hi-Fi CIRCUIT
44
Tuner/If CIRCUIT
47
Block Diagrams
50
Power(Smps) BLOCK DIAGRAM
50
Tu/If, NICAM & A2 BLOCK DIAGRAM
51
Vps Block Diagram
51
Y/C Block Diagram
52
Hi-Fi BLOCK DIAGRAM
53
System Block Diagram
54
Circuit Diagrams
55
Power(Smps) CIRCUIT DIAGRAM
55
Tu/If, Nicam & A2 Circuit Diagram
56
A/V Circuit Diagram
57
Hi-Fi CIRCUIT DIAGRAM
58
Scart(Jack) Circuit Diagram
59
System Circuit Diagram
60
Timer Circuit Diagram
61
Waveform & Voltage Sheet
62
Circuit Voltage Chart
63
Printed Circuit Diagrams
65
Main P.C.board
65
Smps P.C.board
66
Key P.C.board
66
Timer P.C.board
66
Guide & Waveforms
68
DVD Part
68
Electrical Troubleshooting
68
System Operation Flow
68
Test & Debug Flow
69
Details and Waveforms on System Test and Debugging
75
SYSTEM 27Mhz CLOCK,RESET,FLASH R/W SIGNAL
75
Sdram Clock
77
Tray Open/Close Signal
77
Sled Control Related Signal (no Disc Condition)
79
Lens Control Related Signal(no Disc Condition)
79
Laser Power Control Related Signal(no Disc Condition)
80
Disc Type Judgement Waveform
80
Focus on Waveform
82
Spindle Control Waveform (no Disc Condition)
83
Tracking Control Related Signal(System Checking)
84
Rf Waveform
85
Mt1379 Audio Optical and Coaxial Output (Aspdif)
85
Mt1379 Video Output Waveform
86
Audio Output from Audio Dac
87
Block Diagrams
89
Overall Block Diagram
89
Servo Block Diagram
90
Mpeg & Memory Block Diagram
91
Video & Audio Block Diagram
92
Circuit Diagrams
94
System Circuit Diagram
94
Rf & Dsp Servo Circuit Diagram
95
Audio Circuit Diagram
96
Av/Jack Circuit Diagram
97
Circuit Voltage Chart
98
Printed Circuit Diagrams
100
Main P.C.board
100
Section 4 Mechanism
102
Top View
103
Bottom View
103
Bracket Assembly L/D Motor
106
Deck Mechanism Adjustment
114
Mechanism Alignment Position Check
115
Checking Torque
116
Guide Roller Height Adjustment
117
Preliminary Adjustment
117
Precise Adjustment
117
Audio/Control (A/C) Head Adjustment
118
X-Value Adjustment
119
Check before Starting Repairs
121
Required Maintenance
122
Supplies Required for Inspection and
122
Maintenance Procedure
122
Scheduled Maintenance
122
Deck Mechanism
125
Front Loading Mechanism
128
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