NEC MultiSync 3V JC-1535VMA Manuals

Manuals and User Guides for NEC MultiSync 3V JC-1535VMA. We have 1 NEC MultiSync 3V JC-1535VMA manual available for free PDF download: Service Manual

NEC MultiSync 3V JC-1535VMA Service Manual (145 pages)

Brand: NEC | Category: Monitor | Size: 6.46 MB

Contents
3
Specifications
4
Electrical Description
4
Mechanical Description
5
Pin Assignment Table
6
Monitor Side
6
Graphics Board Side
6
Signal Timing
7
Separate Sync
7
Composite Sync
7
Preset Timing Charts
8
Serial Number Information
9
Monitor Adjustment Controls
10
Side Pincushion Control
10
Vertical Size Control
10
Horizontal Size Control
10
Disassembly
11
Tilt/Swivel Assy
11
Cabinet Back, Shielding Plate and Bracket
12
Main PWB and CRT PWB
13
PWB Location Diagram
16
Connector, Control and Test Point Location Diagram
17
Main PWB
17
I/F Pwb
18
Crt Pwb
19
Chopper Control PWB
20
SW REG Control PWB
20
Adjustment Procedures
21
Application Range
21
Product Outline
21
Adjustment Equipment
21
Adjustment Signal
22
MAC II Adapter Wiring Diagram
22
Signal Input Pin Assignments
23
Input Connector Pin Assignment
23
Adjustment Jig
24
Adjustment Items
25
Adjustment Preparation
25
Signal Generator Output Level Adjustment
25
Adjustment Magnetic Fields
25
Production Line Initial Adjustment Control Settings
26
Horizontal Hold Adjustment
27
Vertical Hold Adjustment
27
High Voltage Adjustment
27
Vertical Linearity Adjustment
27
Horizontal Centering Adjustment
28
Parallelogram Distortion Adjustment
28
Vertical Size Adjustment
28
Vertical Position Adjustment
28
Side Pincushion Adjustment
29
Trapezoid Distortion Adjustment
29
Horizontal Phase Adjustment
29
Adjustment Confirmation
30
Video Amplitude Adjustment
30
GAIN Adjustment
30
SUB CONTRAST Adjustment
30
Cut off Adjustment
31
Sub Brightness Adjustment
31
White Balance Adjustment
31
Focus Adjustment
32
CRT Purity and Convergence Alignments
32
Purity
32
Purity Adjustment
33
Convergence
34
Convergence Adjustment
35
How to Preset the Color Analyzer II Data
36
Zero Calibration
36
Presetting the Phosphor Characteristics
36
Presetting Data into Memory 1
37
Set the Write Protect
37
Timing of References Signal
38
Adjustment Program Operating Procedures
40
General Description
40
Program Operating Procedures
40
Adjustment Program
42
Troubleshooting
52
No Raster
53
Abnormal Image or Raster Brightness
55
High Voltage Failure
57
No Horizontal Deflection
57
No Vertical Deflection
58
Low B+ Chopper Control Circuit or the Heater Supply Voltage Failure
59
High B+ Chopper Control Circuit or the Deflection Circuit B+ Failure
60
Horizontal Oscillator Failure
61
Horizontal Oscillator Operation Failure
61
Unstable Horizontal Synchronization
62
High Voltage Protect Incorrect Operation or Failure
64
Distortion Failure
65
Side Pincushion Control Circuit Failure
65
Vertical Trapezoid Distortion Control Circuit Failure
66
Parallelogram Distortion Control Circuit Failure
66
Switching Regulator Circuit Failure
67
Image Size Failure
68
Horizontal Image Size Failure or Abnormal Function
68
Vertical Image Size Failure or Abnormal Operation
69
Image Position Failure
69
Horizontal Image Position Failure
69
Vertical Image Position Failure
70
User Control Failure
70
Brightness User Control Failure
70
Contrast User Control Failure
70
Horizontal Position Control Failure or Abnormal Operation
71
Vertical Position Control Failure or Abnormal Operation
71
Vertical Size Control Failure or Abnormal Operation
71
Abnormal White Balance
72
Blanking Circuit Failure
72
Poor Focus
72
Poor Linearity
73
Horizontal Linearity Failure
73
Vertical Linearity Failure
73
DC Control Circuit Failure
74
DAC Output Voltage Failure
74
EEPROM Read/Write Failure
74
Check the IC Supply Voltages
75
IPM Incorrect Operation or Failure
75
IPM Incorrect Operation
75
IPM Failure
76
Self Test Failure
76
Circuit Description
77
Multisync Control Engine
78
DC Control Circuit
78
Horizontal Oscillator Tracking Circuit
79
Horizontal Phase Shift
79
Horizontal Oscillation
79
Power Management Circuit
79
Video Preamplifier
80
Video Output Amplifier
80
Video BIAS Control Circuit
80
Video Signal Generator for the Self Test Mode
80
Switching Regulator Section
81
Rectifying and Smoothing Circuit
81
Auxiliary Power Supply Circuit
82
Converter Circuit
82
Output Rectifying and Smoothing Circuit
83
Error Detection Amplifier Circuit
83
Oscillating and Control Circuit
84
Overvoltage Protection
85
Degaussing Circuit
85
H Drive Pulse Buffer
86
H Deflection and High Voltage Circuit
86
H Centering Circuit
86
High Voltage Circuit
86
High B+ Chopper
87
High Voltage Protector
87
Sawtooth Generator
87
Low B+ Chopper
87
Horizontal Size Control Circuit
88
Side Pincushion and Vertical Trapezoid Distortion Control Circuit
88
Vertical Output
88
Blanking Output
88
Spot Killer
89
Contrast Control Circuit
89
Parts Difference List
90
Replacement Parts List
109
Block Diagram
118
Printed Wiring Boards
123
Main PWB Schematic Diagram
128

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NEC MultiSync 3V JC-1535VMA Manuals

NEC MultiSync 3V JC-1535VMA Service Manual (145 pages)

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