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Mitsubishi Electronics
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Projection Television
Mitsubishi Electronics
WD-52628, WD-73727, WD-62827, WD-62627, WD-62628 Lamp Control Circuitry
Models:
WD-73927
WD-62628
WD-73727
WD-73827
WD-52628
WD-62927
WD-62627
WD-62827
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Specifications
Install
Schematic Diagrams
Test signal
LED Indicator Diagnostics
Button Reset
Optical Engine Replacement
Accessories
Cabinet Front Disassembly
Adjustment Procedures
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MODELS:
WD-52627 /
52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927
Lamp Control Circuitry
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Contents
V29 / V30 / V30+ / V31 Chassis
Specifications
Mitsubishi Digital Electronics AMERICA, INC
Page
Contents
Schematic Diagrams
Servicing use only recommended Lead-Free solder refer to
Product Safety Notice
Introduction
Safety Precautions
Leakage current check
Cabinet Front Disassembly
WD-52627 / WD-52628 / WD-62627 / WD-62628
Speaker Grille & Bezel Removal
SCREEN-ASSY Removal
WD-62827 Front Disassembly
Front Panel Caps Removal
SIDE-TRIM Removal
Bezel Removal
Screen Assy Removal
WD-62927 Front Disassembly
TOP, Bottom and Sides Trim Removal
Front Bezel Removal
Screen Assembly Removal
WD-73727 / WD-73827 Front Disassembly
Card Reader Removal
GRILLE-SIDE Removal
WD-73927 Front Disassembly
SCREEN-ASSY Removal
Cabinet Rear Disassembly
BACK-COVER Removal
Chassis Disassembly / Accessing PWBs
Chassis Sequence of Disassembly
Chassis Removal from the cabinet
Figure a
Chassis Cover Removal Figure
Assy PWB- Terminal Removal Figure
PWB-POWER Removal Figure
Chassis Upper Shield Removal Figure
PWB-MICRO Removal
PWB-FORMAT & PWB=RISER Removal Referring to Figures
PWB-DM Removal Chassis Rear Shield Removal Figure
PWB-DM Removal Figures
CE1
Operating Chassis Outside of Cabinet
PCPA1
Bolt Table
Optical Engine Replacement
52 & 62 Models Optical Engine Replacement Details
Ltjc
52 & 62 Optical Engine Replacement Details
CJ3
52 & 62 Optical Engine Replacement Details
Spring
Model’s Optical Engine Replacement
ENGINE-PWR-PWB
Models Optical Engine Replacement Details
Engine Assembly removal from the cabinet
Cd c
Lamp Cover Vertical
Engine removal from the Base Plate Assembly
Joining e Bracket
Rubber GWedge
Unplug Ballast Leads
After Replacing the Optical Engine
Engine Installation
Do not Lose
To Remove the Diamond Shield
To Install the Diamond Shield
WD-62927 / WD-73927 Only
Servicing the Lenticular Screen and Fresnel Lens
Lenticular Screen and Fresnel Lens Removal
Lenticular Screen and Fresnel Lens Installation
Option Menu
LED Indicator Diagnostics
Inputs
Abnormal LED Indications
AIR Filter Cleaning
Lamp Cartridge Air Filter
Measuring equipment and Jigs
Test signal
Circuit Adjustment Mode
Resetting Data to Factory Values
Adjustment Selection
Adjusting Data
Terminating the circuit adjustment mode
Required Tools
Prelminary
WD-52627 / 62627 / 52628
WD-62827A
Adjustment Access Pedestal Cover
Locking Screws and Wedge Removal
52 & 62 Side Locking Screw
Locking Screws
Adjustment Procedures
Adjustment Locations
Rotation Adjustment
Horizontal Keystone Adjustment
Vertical Keystone Adjustment
After Adjustment
Displays used to indicate Pb-free
Pb-Free Display
Chip Parts Removal Transistors
Replacement
Chip Parts Removal Resistors, Capacitors, etc
Parts Tolerance Codes
Critical and Warranty Parts Designation
Parts Ordering
Quick Reference for Common Parts
Integrated Circuits
Transistors
Diodes
Coils
EMI-F-CHIP BLM11A601S
COIL-CHIP 33MH-J
COIL-CHIP 10MH-K
COIL-CHIP 10MH-J
EMI-F-CHIP BLM11B050SA
COIL-RF 22MH-K
COIL-RF 6.8MH-M
COIL-RF 10MH-K
COIL-RF 2.7MH-M
Transformers
Resistors
EMI-F-CHIP NFL21SP506X13CD
CHIP-FILTER ACM2012D-9002P
METAL-P 3W 1K-J
Capacitors
THRM-CHIPNCP18XH103F03RB
Switches
Miscellaneous
SW-LEVER
TAPE-LENS
2RF-SWITCH
SWITCH-RF-TYPE
Plate RF-SWITCH
Button Reset
Accessories
Cosmetic Parts
491P178040 SCREEN-LENTICULAR
598D822010 Screen Bracket 623D224010 SCREEN-FRAME Spacer
491P178030 SCREEN-LENTICULAR
598D683010 Screen Bracket 623D224010 SCREEN-FRAME Spacer
598D683010 Screen Bracket
WD-62827 Screen Parts Figure
WD-62927 Screen Parts Figure
WD-73727 Screen Parts Figure
WD-73827 Screen Parts Figure
WD- 73927 Screen Parts Figure
491P176050 SCREEN-LENTICULAR
Page
Main Power Supply
Lamp Ballast DC Supply Fans Power Supply
Page
Analog Video Signal Path
Digital Video Signal Path
Signal Path V31 Only HDD Record V30+
Sound Signal Path
Command Input Circuitry Serial Control Lines
Lamp Control Circuitry
Page
Reader
Live
To Shutter Control
IC3J01
PWB-SWLAMP
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Page
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Contents