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HR-S6850MS
JVC HR-S6850MS Manuals
Manuals and User Guides for JVC HR-S6850MS. We have
1
JVC HR-S6850MS manual available for free PDF download: Service Manual
JVC HR-S6850MS Service Manual (84 pages)
MAGNETOSCOPE
Brand:
JVC
| Category:
DVD Player
| Size: 5.41 MB
Table of Contents
Table of Contents
2
Important Safety Precautions
3
1 Disassembly
5
Disassembly Flow Chart
5
How to Read the Disassembly and Assembly
5
Disassembly/Assembly Method
5
Service Position
8
How to Set the "Service Position
8
Mechanism Service Mode
8
How to Set the "Mechanism Service Mode
8
Jig RCU Mode
8
Setting the Jig RCU Mode
8
Setting the User RCU Mode
8
Servicing Items Related to Video Navigation
8
Emergency Display Function
9
Displaying the EMG Information
9
Clearing the EMG History
9
EMG Content Description
10
EMG Detail Information <1
11
EMG Detail Information <2
12
2 Mechanism Adjustment
13
Before Starting Repair and Adjustment
13
Precautions
13
Checking for Proper Mechanical Operations
13
Manually Removing the Cassette Tape
13
Jigs and Tools Required for Adjustment
14
Maintenance and Inspection
15
Replacement of Major Parts
18
Before Starting Disassembling (Phase Matching between Mechanical Parts)
18
How to Set the "Mechanism Assembling Mode
18
Cassette Holder Assembly
18
Pinch Roller Arm Assembly
20
Guide Arm Assembly and Press Lever Assembly
20
A/C Head
20
Loading Motor
20
Capstan Motor
21
Pole Base Assembly (Supply or Take-Up Side)
21
Rotary Encoder
22
Clutch Unit
22
Change Lever Assembly, Direct Gear, Clutch Gear and Coupling Gear
22
Link Lever
23
Cassette Gear, Control Cam and Worm Gear
23
Control Plate
23
Loading Arm Gear (Supply or Take-Up Side) and Loading Arm Gear Shaft
24
Take-Up Lever, Take-Up Head and Control Plate Guide
25
Capstan Brake Assembly
25
Sub Brake Assembly (Take-Up Side)
25
Main Brake Assembly (Take-Up Side), Reel Disk (Take-Up Side) and Main Brake Assembly (Supply Side)
25
Tension Brake Assembly, Reel Disk (Supply Side) and Tension Arm Assembly
26
Idler Lever, Idler Arm Assembly
26
Stator Assembly
26
Rotor Assembly
26
Upper Drum Assembly
27
Compatibility Adjustment
28
FM Waveform Linearity
28
Height and Tilt of the A/C Head
29
A/C Head Phase (X-Value)
29
Standard Tracking Preset
30
Tension Pole Position
30
3 Electrical Adjustment
32
Precaution
32
Required Test Equipments
32
Required Adjustment Tools
32
Color (Colour) Bar Signal,Color (Colour) Bar Pattern
32
Switch Settings and Standard Precautions
32
EVR Adjustment
32
Servo Circuit
33
Switching Point
33
Slow Tracking Preset
33
Video Circuit
33
D/A Level
33
EE Y/PB y (S-VHS/VHS) Level
33
REC Color (Colour) Level
34
Video EQ (Frequency Response)
34
Auto Picture Initial Setting
35
Audio Circuit
35
Audio REC FM
35
Syscon Circuit
35
Timer Clock
35
PAL/SECAM Converter Circuit
36
Colour Difference Level
36
SECAM Burst Position
36
4 Charts and Diagrams
37
Notes of Schematic Diagram
37
Circuit Board Notes
38
Board Interconnections
39
Main (Video/Audio) Schematic Diagram
40
Main (on Screen) Schematic Diagram
41
Main (Secam) Schematic Diagram
42
Main (Syscon) Schematic Diagram
43
Main (Sw.reg) Schematic Diagram
44
Main (Tuner) Schematic Diagram
45
Main (Sw.display), Mini Front, S-Jack and Adv.jog Schematic Diagrams
46
Main (Main Terminal) Schematic Diagram
47
Digital Schematic Diagram [Hr-S6850Ms/S7850Ms/S7851Ms]
48
Tbc(2M) Schematic Diagram [Hr-S8850Ms]
49
Terminal (S-Sub) Schematic Diagram
50
Terminal (I/O) Schematic Diagram
51
Demodulator Schematic Diagram
52
S-P Converter Schematic Diagram
53
Main Circuit Board
54
Digital and 3D Digital/2M Circuit Boards
55
Terminal Circuit Board
56
S-P Converter and Demodulator Circuit Boards
56
Fdp Grid Assignment and Anode Connection
57
Remote Controller Schematic Diagrams
57
Waveforms
58
Voltage Charts
59
Cpu Pin Function
60
System Control Block Diagram
61
Video Block Diagram
62
Audio Block Diagram
64
5 Parts List
65
Packing and Accessory Assembly <M1
65
Final Assembly <M2
66
Mechanism Assembly <M4
68
Electrical Parts List
70
Main Board Assembly <03
70
Digital Board Assembly <05>(Model:a,B,C)
78
Digital/2M Board Assembly <05>(Model:D)
79
Terminal Board Assembly <06
80
A/C Head Board Assembly <12
82
Demod Board Assembly <14
82
Mini Front Board Assembly(Model:b,C,D)<28
83
S Jack Board Assembly <36
83
Adv.jog Board Assembly <38
83
Loading Motor Board Assembly <55
83
S/P Converter Board Assembly <87
83
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