NEC MultiSync 3V JC-1535VMA/B/R Service Manual

Table of Contents

Contents
Specifications
Electrical Description
Mechanical Description
Pin Assignment Table
Monitor Side
Graphics Board Side
Signal Timing
Separate Sync
Composite Sync
Preset Timing Charts
Serial Number Information
Monitor Adjustment Controls
Side Pincushion Control
Vertical Size Control
Horizontal Size Control
Disassembly
Tilt/Swivel Assy
Cabinet Back, Shielding Plate and Bracket
Main PWB and CRT PWB
PWB Location Diagram
Connector, Control and Test Point Location Diagram
Main PWB
I/F Pwb
Crt Pwb
Chopper Control PWB
SW REG Control PWB
Adjustment Procedures
Application Range
Product Outline
Adjustment Equipment
Adjustment Signal
MAC II Adapter Wiring Diagram
Signal Input Pin Assignments
Input Connector Pin Assignment
Adjustment Jig
Adjustment Items
Adjustment Preparation
Signal Generator Output Level Adjustment
Adjustment Magnetic Fields
Production Line Initial Adjustment Control Settings
Horizontal Hold Adjustment
Vertical Hold Adjustment
High Voltage Adjustment
Vertical Linearity Adjustment
Horizontal Centering Adjustment
Parallelogram Distortion Adjustment
Vertical Size Adjustment
Vertical Position Adjustment
Side Pincushion Adjustment
Trapezoid Distortion Adjustment
Horizontal Phase Adjustment
Adjustment Confirmation
Video Amplitude Adjustment
GAIN Adjustment
SUB CONTRAST Adjustment
Cut off Adjustment
Sub Brightness Adjustment
White Balance Adjustment
Focus Adjustment
CRT Purity and Convergence Alignments
Purity
Purity Adjustment
Convergence
Convergence Adjustment
How to Preset the Color Analyzer II Data
Zero Calibration
Presetting the Phosphor Characteristics
Presetting Data into Memory 1
Set the Write Protect
Timing of References Signal
Adjustment Program Operating Procedures
General Description
Program Operating Procedures
Adjustment Program
Troubleshooting
No Raster
Abnormal Image or Raster Brightness
High Voltage Failure
No Horizontal Deflection
No Vertical Deflection
Low B+ Chopper Control Circuit or the Heater Supply Voltage Failure
High B+ Chopper Control Circuit or the Deflection Circuit B+ Failure
Horizontal Oscillator Failure
Horizontal Oscillator Operation Failure
Unstable Horizontal Synchronization
High Voltage Protect Incorrect Operation or Failure
Distortion Failure
Side Pincushion Control Circuit Failure
Vertical Trapezoid Distortion Control Circuit Failure
Parallelogram Distortion Control Circuit Failure
Switching Regulator Circuit Failure
Image Size Failure
Horizontal Image Size Failure or Abnormal Function
Vertical Image Size Failure or Abnormal Operation
Image Position Failure
Horizontal Image Position Failure
Vertical Image Position Failure
User Control Failure
Brightness User Control Failure
Contrast User Control Failure
Horizontal Position Control Failure or Abnormal Operation
Vertical Position Control Failure or Abnormal Operation
Vertical Size Control Failure or Abnormal Operation
Abnormal White Balance
Blanking Circuit Failure
Poor Focus
Poor Linearity
Horizontal Linearity Failure
Vertical Linearity Failure
DC Control Circuit Failure
DAC Output Voltage Failure
EEPROM Read/Write Failure
Check the IC Supply Voltages
IPM Incorrect Operation or Failure
IPM Incorrect Operation
IPM Failure
Self Test Failure
Circuit Description
Multisync Control Engine
DC Control Circuit
Horizontal Oscillator Tracking Circuit
Horizontal Phase Shift
Horizontal Oscillation
Power Management Circuit
Video Preamplifier
Video Output Amplifier
Video BIAS Control Circuit
Video Signal Generator for the Self Test Mode
Switching Regulator Section
Rectifying and Smoothing Circuit
Auxiliary Power Supply Circuit
Converter Circuit
Output Rectifying and Smoothing Circuit
Error Detection Amplifier Circuit
Oscillating and Control Circuit
Overvoltage Protection
Degaussing Circuit
H Drive Pulse Buffer
H Deflection and High Voltage Circuit
H Centering Circuit
High Voltage Circuit
High B+ Chopper
High Voltage Protector
Sawtooth Generator
Low B+ Chopper
Horizontal Size Control Circuit
Side Pincushion and Vertical Trapezoid Distortion Control Circuit
Vertical Output
Blanking Output
Spot Killer
Contrast Control Circuit
Parts Difference List
Replacement Parts List
Block Diagram
Printed Wiring Boards
Main PWB Schematic Diagram

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NEC MultiSync 3V JC-1535VMA/B/R Service Manual

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