Mitsubishi Electric WT-A42 Manuals

Manuals and User Guides for Mitsubishi Electric WT-A42. We have 2 Mitsubishi Electric WT-A42 manuals available for free PDF download: Service Manual

Mitsubishi Electric WT-A42 Service Manual (75 pages)

Projection Television

Brand: Mitsubishi Electric | Category: Projection TV | Size: 4.81 MB

SCHEMATIC DIAGRAMS Overall Block Diagram

1
- Specifications
  1
- Pcb-Main
  2
- Table of Contents
  3
- Pcb-Power
  3
- PCB-TERMINAL (Input Sw)
  4
Introduction

5
Product Safety Notice

5
- PCB-TERMINAL (3DYC / Decoders)
  5
Safety Precautions

6
- Pcb-Signal-1 (Av I.o)
  6
Cabinet Disassembly

7
Servicing the Lenticular Screen and Fresnel Lens

9
SERVICING Pcbs

10
- Accessing the Main Chassis
  10
- Pcbs - FRONT / CONTROL / CRT / PREAMP
  10
- PCB Locations
  11
- Main Components Location
  11
- PCB-DOUBLER-1 (Input)
  11
Crt Replacement

12
- Second Anode Lead Removal
  12
- CRT Removal
  12
- PCB-DOUBLER-2) (Main)
  12
- PCB-DOUBLER-3 (Output)
  13
Pcb Layout Diagrams

14
Electrical Adjustments

15
- Test Equipment
  15
- Initial Setup
  16
- LED Indicator Diagnostics
  17
- Circuit Adjustment Mode
  18
- Convergence Adjustment Mode
  19
- Adjustment Items List
  21
- CRT Installation
  23
- Adjustment Test Points
  24
- Adjustment Procedures High Voltage Regulation
  25
  - Main/Sub y Level
    25
  - Main/Sub Color Level
    26
  - CRT Cutoff
    26
  - White Balance (NTSC)
    27
  - White Balance (HD)
    27
  - Black Level
    28
  - Sub Contrast
    28
  - Dynamic Focus Preset
    29
  - Lens Focus
    29
  - Electrostatic Focus
    30
  - On Screen Display Character Position
    30
  - Deflection/Convergence Geometry Presets
    31
  - Deflection Circuit Geometry Adjustments
    32
  - Convergence Circuit Geometry Adjustments
    33
  - Centering and Static Convergence
    34
  - Coarse Convergence Adjustments
    35
  - Fine Convergence Adjustments
    36
Chip Parts Replacement

37
- Models: Wt-42311 / Wt-A42
  37
Replacement Parts

38
- Parts Ordering
  38
- Critical and Warranty Parts Designation
  38
- Parts Tolerance Codes
  38
- Replacement Part Notes
  38
  - When Replacing the RF-Switch or PCB-SIGNAL
    38
  - When Replacing the EEPROM
    38
- Quick Reference List
  39
- Remote Control
  39
- Service Parts List
  40
- Screen Parts List
  51
Circuitry Block Diagrams

52
- Power Supply
  52
- Video / Color Signal Path
  53
- Sync Signal Path
  54
- Deflection / HV
  55
- X-Ray Protect
  57
- HV Regulation
  57
- Sound Signal Path
  58
- Convergence
  59
- Control Circuitry
  60

Mitsubishi Electric WT-A42 Service Manual (15 pages)

PROJECTION TELEVISION VK20 chassis

Brand: Mitsubishi Electric | Category: Projection TV | Size: 3.76 MB

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Mitsubishi Electric WT-A42 Manuals

Mitsubishi Electric WT-A42 Service Manual (75 pages)

Table of Contents

SCHEMATIC DIAGRAMS Overall Block Diagram

Introduction

Product Safety Notice

Safety Precautions

Cabinet Disassembly

Servicing the Lenticular Screen and Fresnel Lens

SERVICING Pcbs

Crt Replacement

Pcb Layout Diagrams

Electrical Adjustments

Chip Parts Replacement

Replacement Parts

Circuitry Block Diagrams

Mitsubishi Electric WT-A42 Service Manual (15 pages)

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