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Diamond Pro 750SB
Mitsubishi Diamond Pro 750SB User Manual
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P
ART
NO. 599910596
COLOR MONIT
OR
Diamond Pro 750SB
MODELS DPro
750SB
(B)/-BK(B)
200207
08109705
08109730
SER
VICE MANUAL
NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORA
TION
JUNE 2002
2
Table of Contents
Adjustment Procedures
28
Service Manual
1
Declaration of the Manufacturer
6
Quick Start
9
Size and Position Controls
11
Geometry Controls
12
Recommended Use
14
Safety Precautions and Maintenance
14
Specifications
16
User's Manual
18
Trouble Shooting
19
Diamond Pro 750 SB / Diamond Plus
20
Serial Number Information
22
Disassembly
23
Table of Contents
28
Adjustment Procedures
28
Adjustment & Inspection Tools
29
Timing Table
29
Normal Condition Definition
29
Hot Key Operation
30
B+ Check
32
X-RAY Test
32
B+ Confirmation
32
H-Raster Center Adjustment
32
Preset Adjustment
32
G2 Voltage Adjustment
32
White Balance Adjustment
33
Focus Adjustment
35
Purity Adjustment
35
Convergence Adjustment
36
Power Saving Function Inspection
36
Distortion Adjustment
37
Setting before Shipment
39
Adjustment Magnetic Field
40
Inspection
44
1 Scope
45
Introduction
45
General Description
46
Regulations
47
Regulation Information & Marking Location
48
2 CRT Specifications
49
3 Electric Specifications
50
Deflections
50
Signal Input
50
Video Performance
50
Power Supply
51
Power Saving
51
Degaussing
52
4 Functions
52
Display Part
52
5 Display Quality
61
Basic Test Conditions
61
Picture Size and Position
61
Luminance (Brightness)
62
Color
63
Geometric Distortion
64
Linearity
65
Misconvergence
66
Focus
66
Halo
67
Raster Regulation
67
6 CRT Limits of Screen and Faceplate Blemish
68
CRT Face Plate Defect
68
AR-Film's Surface Defect
69
7 Inspection of PLUG & PLAY Communication and OSM "MONITOR INFORMATION" for Model Name/ Serial Number
72
A System Construction
72
Input Signal
72
Programs Required
72
Inspection Procedures
72
Error Messages
74
EDID Data File
74
Trouble Shooting
75
No Operation, Power Led Flash
76
No Operation, Power Led off
77
Video Noise, no Synchronous
78
No Video
79
No Raster
80
Sync Trouble
82
Poor Focus
83
Poor Horizontal Linearity
84
Circuit Description
85
1 Power Circuit
87
General Description
87
EMI Circuit
87
Degaussing Circuit
87
Transformer and Energy
87
Overcurrent Protection
87
Starter Circuit
88
Sync Circuit
88
Feedback Circuit
88
Snubber Circuit
88
Power Management Function
88
Harmonic Coil Changeover Circuit
88
2 Mcu
89
Frequency Specifications
89
System Architecture
89
Inputs
89
Outputs
89
Pin Assignments
90
CS Table
90
Model Changeover Table
90
3 Deflection Circuit
91
Deflection Control IC (IC501)
91
Horizontal Deflection Circuit
92
Horizontal Oscillator Circuit
92
Step-Up Horizontal Deflection Source (+B)
92
Horizontal Width Control Circuit
93
Horizontal Drive Circuit
93
Horizontal Output Circuit and Horizontal Feedback Circuit
94
Centering Circuit
96
Vertical Deflection Circuit
97
Introduction
97
Saw-Tooth Wave Signals and Waveform Correction Circuit (U501)
98
Vertical Output Amplifier Circuit (U401)
98
4 High Voltage Circuit
98
5 Dynamic Focus Circuit
98
6 Safety Protection Circuit and X-Ray Protection Circuit
99
X-Ray Protection Circuit
99
Beam Current Protection Circuit
99
Primary Leakage Current Protection Circuit
99
7 Video Circuit
100
Video Pre-Amplifier
100
Video Signal Mixing
100
Video Clamp
100
Horizontal Blanking
100
Contrast, White Balance, and Brightness Control
101
Video Bias Control
101
Vertical Flyback Blanking Circuit
102
Blanking Operations: Signal Mode Changeover, Power ON/OFF and Unstable Sync Signals
102
ABL Circuit
103
SB MODE (Super Bright Mode)
103
Replacement Parts List
104
4
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Mitsubishi Diamond Pro 750SB Specifications
General
Brand
Mitsubishi
Model
Diamond Pro 750SB
Category
Monitor
Language
English
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