Mitsubishi Electronics
WD-62527, WD-62528, WD-52528
specifications
Analog Video Signal Path
Troubleshooting
Characteristics
Install
Error codes
Test Signal Activation
AV Reset Defaults
Light Engine Replacement
Accessories
Screen Assembly Exploded View
Light Engine Removal Procedure
Page 54
MODELS:
WD-52527 /
WD-52528 /
WD-62527 /
WD-62528
Analog Video Signal Path
NOTE
:
COMP-3
Inputs on V28+ Only
Page 54
Page 53
Page 55
Image 54
Page 53
Page 55
Contents
2005
Page
Contents
Model WD-52527 / WD-52528 / WD-62527 / WD-62528
Characteristics
Servicing use only recommended Lead-Free solder refer to
Safety Precautions
Speaker Grille Removal
SCREEN-ASSY Removal
BACK-COVER Removal
Metal Support Plate Removal
Release Cable Clamps & Disconnect CE Connector
Chassis Mounting Screws Removal
Clamp
On the right side of the chassis from the rear
AC Cord
Chassis removal from the Cabinet
Complete Chassis Removal
J8F01FC
Chassis Sequence of Disassembly
Chassis Cover Removal 1 Remove the 4 screws a
Assy PWB- Terminal Removal Figure
PWB-POWER Removal Figure
Chassis Upper Shield Removal Figure
Chassis Rear Shield Removal Figure
PWB-MICRO Removal Referring to Figure
PWB-RISER and PWB-FORMAT Removal Referring to Figure
PWB-DM Removal Figure
Light Engine Replacement
Light Engine and Associated Components
Light Engine Removal Procedure
Light Engine Rear View
Preliminary
Remove two screws c from Fan Plate and remove
Model WD-52527 / WD-52528 / WD-62527 / WD-62528
Installation
Servicing the Lenticular Screen and Fresnel Lens
Lenticular Screen and Fresnel Lens Removal
Bezel Removal Front View
Lenticular Screen and Fresnel Lens Installation
Installing the Fresnel Lens & Lenticular Screen
Option Menu
AV Reset Defaults
LED Indicator Diagnostics
Error Codes
Two Mechanical Adjustment
Remote Control Operational Modes
Two Electrical Adjustments
Activating the Adjustment Mode
Terminating the circuit adjustment mode
Adjustment Selection
Adjusting Data
Saving Data
Light Engine Adjustments
Clockwise Rotation Needed
Trapezoid Distortion Adjustment
Rotation Adjustment
Counter Clockwise Rotation Needed
Format Circuit Horizontal/Vertical Position Adjust- ment
Micro / Terminal PWB Troubleshooting
Power PWB Troubleshooting
LCD Engine Internal Layout
Lamp Protect Line
Pb Solder
Pb-Free Display
Replacement
Chip Parts Removal Resistors, Capacitors, etc
Chip Parts Removal Transistors
Critical and Warranty Parts Designation
Parts Ordering
Parts Tolerance Codes
Quick Reference for Common Parts
Integrated Circuits
Ref # Part Name & Description
Transistors
Diodes
Coils
Chip UDZS3.9B
CORE-FERRITE ZBF503D-01
L9D00
L9D02
L9D06
Resistors
Transformers
Variable Resistors
Capacitors
C9A13
C9A10
CER AC250V E2200P-M
C9A14
Switches
Miscellaneous
Accessories
Printed Circuit Boards
Cosmetic Parts
WD-62527
Screen Parts
Ref # Part Name & Description WD-525427
WD-52528
Screen Assembly Exploded View
Models WD-52527 / WD-52528 / WD-62527 / WD-62528
Lamp Ballast DC Supply Fans Power Supply
Analog Video Signal Path
Digital Video Signal Path
Sound Signal Path
Command Input Circuitry Serial Control Lines
Lamp Control Circuitry Shutter Control
Models WD-52527 / WD-52528 / WD-62527 / WD-62528
Models WD-52527 / WD-52528 / WD-62527 / WD-62528
PWB-DM
Doubler Circuit
Audio Supply Switch
Contents
AC-OFF Detect
To Shutter Control
To Sensors & Fans To Ballast Contents
Chassis
TO/FROM Riser
FMT Board Input BUS Control
Sdram Address BUS
Sdram Data BUS
To DM Board
Sdram Address
TC7SA 08FU
M306V7FGFP#U0
SN74CBTD1G125DBVR
T883C446 MODEL/GROUP Numbers
SN74HC132DB
SYSTEM-5 Micro
SYS5
SN74LVC1G125DBVR
Video Switching
A05FP
Rsvda
R0XC
Tmdspgnd
R1XC
COMP-1 COMP-2
TA to Signal PWB VID-SW
INPUT1
DVI-1 DVI-2
IF+
UPC3221GV
TO/FROM Interface TO/FROM Power
M306H2FCFP
AX823MEUK
TC7SET08F
To PWB-TERMINAL
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