Mitsubishi Electronics
WD-62527, WD-62528, WD-52528 Command Input Circuitry Serial Control Lines
Troubleshooting
Characteristics
Install
Error messages
Test Signal Activation
AV Reset Defaults
Light Engine Replacement
Accessories
Screen Assembly Exploded View
Light Engine Removal Procedure
Page 57
MODELS:
WD-52527 /
WD-52528 /
WD-62527 /
WD-62528
Command
Input Circuitry
Serial Control Lines
Page 57
Page 56
Page 58
Image 57
Page 56
Page 58
Contents
2005
Page
Contents
Model WD-52527 / WD-52528 / WD-62527 / WD-62528
Servicing use only recommended Lead-Free solder refer to
Characteristics
Safety Precautions
SCREEN-ASSY Removal
Speaker Grille Removal
Metal Support Plate Removal
BACK-COVER 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
J8F01FC
Complete Chassis Removal
Chassis Sequence of Disassembly
Assy PWB- Terminal Removal Figure
Chassis Cover Removal 1 Remove the 4 screws a
Chassis Upper Shield Removal Figure
PWB-POWER Removal Figure
PWB-MICRO Removal Referring to Figure
Chassis Rear Shield Removal Figure
PWB-DM Removal Figure
PWB-RISER and PWB-FORMAT Removal Referring to Figure
Light Engine and Associated Components
Light Engine Replacement
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
Lenticular Screen and Fresnel Lens Removal
Servicing the Lenticular Screen and Fresnel Lens
Bezel Removal Front View
Installing the Fresnel Lens & Lenticular Screen
Lenticular Screen and Fresnel Lens Installation
Option Menu
LED Indicator Diagnostics
AV Reset Defaults
Error Codes
Two Electrical Adjustments
Remote Control Operational Modes
Two Mechanical Adjustment
Activating the Adjustment Mode
Adjusting Data
Adjustment Selection
Terminating the circuit adjustment mode
Saving Data
Light Engine Adjustments
Rotation Adjustment
Trapezoid Distortion Adjustment
Clockwise Rotation Needed
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-Free Display
Pb Solder
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
Ref # Part Name & Description
Integrated Circuits
Diodes
Transistors
Chip UDZS3.9B
Coils
CORE-FERRITE ZBF503D-01
L9D00
L9D02
L9D06
Variable Resistors
Transformers
Resistors
Capacitors
CER AC250V E2200P-M
C9A10
C9A13
C9A14
Miscellaneous
Switches
Accessories
Printed Circuit Boards
Cosmetic Parts
Ref # Part Name & Description WD-525427
Screen Parts
WD-62527
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
Contents
Audio Supply Switch
Doubler Circuit
AC-OFF Detect
Chassis
To Sensors & Fans To Ballast Contents
To Shutter Control
TO/FROM Riser
Sdram Data BUS
Sdram Address BUS
FMT Board Input BUS Control
To DM Board
Sdram Address
SN74CBTD1G125DBVR
M306V7FGFP#U0
TC7SA 08FU
T883C446 MODEL/GROUP Numbers
SYS5
SYSTEM-5 Micro
SN74HC132DB
SN74LVC1G125DBVR
A05FP
Video Switching
Tmdspgnd
R0XC
Rsvda
R1XC
INPUT1
TA to Signal PWB VID-SW
COMP-1 COMP-2
DVI-1 DVI-2
UPC3221GV
IF+
TO/FROM Interface TO/FROM Power
M306H2FCFP
AX823MEUK
TC7SET08F
To PWB-TERMINAL
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Manual
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60.95 Kb
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