Mitsubishi WD-62825, WD-62725, WD-62525, WD-52825, WD-52725 Service Manual
...
2004
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MITSUBISHI ELECTRIC
ManualManual
Manual
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DIGITAL LIGHT PROCESSING™ PROJECTION TV
V26 CHASSIS
MODELS
V26 V26+ V26++
WD-52525 WD-52725 WD-52825
WD-62525 WD-62725 WD-62825
WD-52525
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
SPECIFICATIONS
• Power Input : AC 120V, 60Hz
• Power Usage : 275W
• Light Engine : DLP 0.85" 1280 x 720p
• Lamp : 120W VIP Type
• Channel Frequencies : Air - VHF 2 ~ 13 UHF 14 ~ 69
Analog Cable - 1 ~ 125
Digital Cable - 1 ~ 135
• Antenna Input : 2 RF 75Ω unbalanced
• Tuning :
• Cabinet Dimensions : [WD-52xxx] 37.2" x 49.6" x 17.4"
• Weight : [WD-52xxx] 132.4 lbs
• Speakers (10Wx2) : 5" Coaxial x 2
• Input Level : VIDEO IN JACK (RCA Type)
• Design specifications are subject to change without notice.
1 NTSC/ATSC/QAM64&256
1 CableCARD™ Slot
1 NTSC for PIP
[WD-62xxx] 43.7" x 58.3" x 19.9"
[WD-62xxx] 165.5 lbs
1.0Vp-p 75Ω unbalanced
AUDIO IN JACK (RCA Type)
500mV RMS full scale into 43kΩ,
unbalanced
: S-VIDEO IN JACK
(Y/C separate type)
Y:1.0 Vp-p C:0.286Vp-p(BURST)
75Ω unbalanced, 480i
: COMP / Y, Pr, Pb (RCA Type )
Y: 1.0 Vp-p Pr, Pb: 700mVp-p, 480i,
480p, 720p, 1080i
: DTV / Y(G), Pr(R), Pb(B), H, V (RCA
Type) Y: 1.0 Vp-p Pr, Pb: 700mVp-p,
75Ω, H, V: 3.0Vp-p, 480i, 480p,
720p, 1080i
: VGA / R,G,B,V,H (15 pin D) 640x480,
800x600, 1024x768, 720x1280,
60Hz
• Output Level : VIDEO OUT JACK (RCA Type)
1.0Vp-p 75Ω unbalanced
: AUDIO OUT JACK (RCA Type)
500mV RMS
full scale into 4.7kΩ, unbalanced
• Digital : IEEE-1394 I/O Jacks
Interface : AC-3 Digital Audio Output (RCA
Type)
: HDMI
: MonitorLink
: 4 Memory Card Reader Inputs
(+/-200mV)
1.5V RMS
TM
TM
Control/RS-232C
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2004 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
CONTENTS
INTRODUCTION ................................................................................................................................5
PRODUCT SAFETY NOTICE ...........................................................................................................5
SAFETY PRECAUTIONS .................................................................................................................6
DISASSEMBLY PROCEDURES ......................................................................................................... 7
Cabinet Front Disassembly ............................................................................................................. 7
Cabinet Rear Disassembly .............................................................................................................. 9
ELECTRICAL CHASSIS REPLACEMENT ........................................................................................ 10
OPTICAL ENGINE REPLACEMENT ................................................................................................. 13
DATA COPY PROCEDURE ............................................................................................................... 16
DIAMONDSHIELD™ REPLACEMENT .............................................................................................. 17
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS ..................................................... 18
INITIAL SETUP ................................................................................................................................ 20
FRONT PANEL LED DIAGNOSTICS ................................................................................................ 22
SERVICE ADJUSTMENTS ............................................................................................................... 24
Equipment .................................................................................................................................... 24
Circuit Adjustment Mode ............................................................................................................... 24
Adjustment Items and Initial Data Settings ................................................................................... 26
Electrical Adjustments .................................................................................................................. 27
Mechanical Adjustments ............................................................................................................... 27
REPLACEMENT PARTS .................................................................................................................. 30
SCREEN ASSEMBLY PARTS .......................................................................................................... 33
CIRCUITRY BLOCK DIAGRAMS ..................................................................................................... 35
PCB INTERCONNECT DIAGRAM
Page 3
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
Page 4
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
INTRODUCTION
This service manual provides service instructions for PTV Models and Chassis:
V26 Chassis V26+ Chassis V26++ Chassis
WD-52525 WD-52725 WD-52825
WD-62525 WD-62725 WD-62825
This service manual includes:
1. Assembly and disassembly instructions for the front and rear cabinet components.
2. Servicing of the Lenticular Screen and Fresnel Lens.
3. Servicing down to major components, chassis, Optical Engine, Lamp Ballast, etc..
4. Electrical adjustments.
5. Optical Adjustments.
6. Chip parts replacement procedures.
7. Simplified circuit path diagrams.
8. Overall PCB interconnect block diagram.
The parts list section of this service manual includes:
1. Cabinet and screen parts.
2. Electrical parts.
Block diagrams of the above listed models are included in this service manual for better understanding of the circuitry.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in television receivers have special safety related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by
using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have special safety characteristics are identified in this service manual.
Electrical components having such features are identified by shading on the schematic diagram and by bold type in
the parts list of this service manual. Therefore, the replacement for any safety part should be identical in value
and characteristics.
Digital Light Processing, Digital Micromirror Device and DLP are trademarks of Texas Instruments.
CableCARD is a trademark of Cable Television Laboratories, Inc.
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.
Page 5
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
SAFETY PRECAUTIONS
NOTICE: Observe all cautions and safety related notes located inside the receiver cabinet and on the
receiver chassis.
WARNING:
1. Operation of this receiver outside the cabinet or with the cover removed presents a shock hazard
from the receiver's power supplies. Work on the receiver should not be attempted by anyone who is
not thoroughly familiar with the precautions necessary when working on high voltage equipment.
2. When service is required, observe the original lead dress. Extra precaution should be taken to
assure correct lead dress in the high voltage area. Where a short-circuit has occurred, replace those
components that indicate evidence of overheating.
W ARNING: Ultraviolet Rays Hazard!
The lamp used in this product generates high intensity light which contains UV -rays
that can injure your eyes. This high intensity light is then filtered and all UV -rays are
removed before it is displayed on screen.
T o protect your eyes, do not look directly into the lamp or the light coming directly
from the lamp, lens or mirror .
Leakage current check:
Before returning the receiver to the customer, it is recommended that leakage current be measured according to the
following methods.
1. Cold Check
With the alternating current (AC) plug removed from the AC source, place a jumper across the two AC plug
prongs. Connect one lead of an ohm meter to the AC plug and touch the other lead to each exposed metal part
(i.e. antennas, handle bracket, metal cabinet, screw heads, metal overlay , control shaf ts, etc.), particularly any
exposed metal part that has a return path to the chassis. The resistance of the exposed metal parts having a
return path to the chassis should be a minimum of 1Megohm. Any resist ance below this value indicates an
abnormal condition and requires corrective action.
2. Hot Check ...Use the circuit shown below to perform the hot check test.
1. Keep switch S1 open and connect the receiver to the measuring circuit. Immediately after
connection, and with the switching devices of the receiver in their operating positions, measure the
leakage current for both positions of switch S2.
2. Close switch S1, energizing the receiver . Immediately after closing switch S1, and with the
switching devices of the receiver in their operating positions, measure the leakage current for both
positions of switch S2. Repeat the current measurements of items 1 and 2 after the receiver has
reached thermal stabilization. The leakage current must not exceed 0.5 milliampere (mA).
Page 6
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
Reusable Wire Ties
Do not cut wire ties during disassembly, reusable
wire ties are used in these models. Lift the tab to release the wire tie. During reassembly, re-use wire ties to
ensure all wiring harnesses are properly bundled and
dressed.
CABINET DISASSEMBLY (FRONT VIEW)
WD-52525 / WD-62525 / WD-52725 / WD-62725
*Refer to the Parts List for Part Numbers
Lift Tab to Release
Wire Tie
Front Cabinet Disassembly
1. Remove the SPEAKER-GRILLE by pulling forward.
2. Remove screws (a) to remove the COVER-FRONT.
3. Remove screws (b) on the rear of the upper back cover (4 across the top and 3 on each side).
4. Remove the 4 screws (c) holding the bottom of the Screen Assembly.
5. Unplug connector LN from the Control Panel.
6. Lift the Screen Assembly up slightly then pull towards the front to remove the assembly.
Page 7
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
CABINET DISASSEMBLY (FRONT VIEW)
WD-52825 /WD-62825
*Refer to the Parts List for Part Numbers
Front Cabinet Disassembly
1. Remove the SPEAKER-GRILLES by pulling forward.
2. Remove screws (a) to remove the COVER-FRONT.
3. Remove screws (b) to remove the GRILLE-BASE.
4. Remove screws (d) on the rear of the upper back cover (3 on each side and 4 across the top).
5. Remove the 4 screws (c) holding the bottom of the Screen Assembly.
6. Unplug connector LN from the Control Panel.
7. Lift the Screen Assembly up slightly then pull towards the front to remove the assembly
8. To disconnect the Card Reader and the Front Inputs:
• Unplug the Card Reader USB connector from the PCB-DM.
• Unplug the Front 1394 cable from the HDD Module (Hard Drive).
• Unplug the CC connector from the Front Inputs.
Page 8
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
(b)
(b)
CABINET DISASSEMBLY (REAR VIEW)
FILTER-COVER Removal
Remove 2 screws (d) to remove the Filter Cover.
COVER-BACK Removal
1) Remove 9 screws (a)
2) Remove 5 screws (b)
3) Remove 2 screws (c)
4) Pull the COVER-BACK
from the cabinet.
Rear Plate Removal
1) Remove 6 screws (a)
2 Remove10 screws (b)
3) Pull the Rear Plate from the
cabinet.
NOTE: To operate set with the Cover-Back and Rear Plate removed, re-install the Filter Cover and ensure the Exhaust Fan
is connected.
(a)
(a)
(b)
(b)
(b)
(a)
(a)
Page 9
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
ELECTRICAL CHASSIS REPLACEMENT
1) Remove the 4 black screws (a) securing the chassis shown in the two diagrams below.
2) Unplug the USB and 1394 connectors from the Card Reader.
NOTE: In the V26++ chassis the Card Reader 1394 connector plug into the Hard Drive Module.
3) Disconnect all cables to the front of the cabinet, the Optical Engine and the Lamp Ballast (see next page).
4) Carefully slide the chassis from the cabinet.
5) IMPORTANT: After Electrical Chassis replacement, perform the Data Copy Procedure (page 16).
Page 10
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
NOTE: To remove the chassis, the two connectors to the Lamp Ballast must be
disconnected at the Lamp Ballast.
Accessing & Disconnecting The Lamp Ballast
Removing the Right Support
Remove the 3 screws shown below.
3 Screws
Removing the Lamp Ballast Shield
(4 screws)
4 Screws
Unplug CN1 & CN2
Connectors
Unplug
Connectors
Page 11
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
V26 Chassis PWB Locations
NOTE: The HDD is only in the V26++ models.
Page 12
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
Optical Engine Mounting
Note: The Engine has no individual
service parts available. Attempting
to disassemble the Engine may void
the warranty.
Optical Engine Replacement
The Optical Engine is mounted on the Adjuster assembly as shown in the above diagram.
1) Four screws (a) secure the bottom plate and Optical Engine to the Adjuster assembly.
2) The bottom plate tab (1) slides into slot (1) on the Adjuster.
3) The Optical Engine is secured to the bottom plate by 4 screws (b).
4) The Black Bracket is secured to the bottom plate and the Lamp Box with 4 screws (c).
5) To replace the Optical Engine, the Optical Engine, bottom plate and black bracket need to be removed
together as an assembly. Refer to the following pages for exact replacement instructions.
Page 13
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
Removing the Optical Engine
1) Remove the Cabinet Back (refer to disassembly instructions).
2) Disconnect all connectors from the Optical Engine, Lamp Cartridge Housing and the PCB-DMD.
3) From the rear of the TV, remove the 4 screws (c), to remove the COVER-DUCT and DMD Fan cover.
4) From the rear of the TV, remove the 4 brass colored screws (a), shown below, securing the bottom plate to
the Adjuster assembly.
5) Slide the Optical Engine/Lamp Cartridge Housing towards the rear to remove from the TV.
(a)
O ptic al Engine (R e a r Vie w / Aird uct & DMD Fa n Cover Re moved)
Page 14
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
Remove the following parts from the Optical Engine
• DMD Thermal Sensor
• The Optical Engine bottom plate and black bracket
DMD Thermal Sensor Removal (Figure 1)
1) Remove screw (a) on the top of the DMD Fan.
2) Set the Thermal Sensor aside to install on the replacement Optical Engine.
(a)
Figure 1: DMD Thermal Sensor
Bottom Plate & Black Bracket Removal
1) Remove the 4 screws (B) from the Bottom Plate (Figure 2)
2) Remove the two screws (C), holding the Black Bracket to the Lamp Box. (Figure 3)
Heat Sensor
Thermal Sensor
(B)
Bottom V iew
Figure 2: Bottom Plate
Page 15
Bottom Pla te
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
Bla ck Bra cke t
(C)
Front View
Figure 3: Black Support Bracket
Installing the Optical Engine
1) Install the Bottom Plate, Black Support Bracket and the Heat Sensor, removed from the original Optical
Engine, on the replacement Engine
2) Reverse the removal procedure to install the replacement Optical Engine in the cabinet.
3) The following adjustments may have to be performed after the installation. (See Service Manual)
• Horizontal and Vertical Electrical Centering Adjustment.
• Optical Unit Rotation Adjustment
• Optical Unit Keystone Distortion Adjustments.
4) IMPORTANT: After Optical Engine replacement, perform the Data Copy Procedure described below.
Data Copy Procedure
This procedure must be performed after replacing either the Electrical Chassis or Optical Engine.
1) To display the data copy menu press <TV MENU> <2-4-5-7> <0>
2) Use the cursor keys to yellow highlight “Copy Light Engine EEPROM to DM”
3) Press <ENTer>
4) After the copy procedure has been completed, exit the menu by pressing <HOME>
Copy Light Engine EEPROM to DM
Restore backup
UPLOAD TERMINAL BOARD DATA
Page 16
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
DIAMOND SHIELD REPLACEMENT
To Remove the Diamond Shield:
1. While wearing soft cotton gloves, loosen the
sides of the Diamond Shield by pressing a small
plastic card (the size of a standard credit card or a
clean, plastic, putty knife) into the middle of the
side slot. The Diamond Shield side will snap out
of the top middle and bottom clips. Loosen both
sides before proceeding to step 2.
2. After the sides are free, gently push down on the
top of the Diamond Shield. It will slide out of the
top channel.
3 Carefully pull the screen up to remove it from the
bottom channel. Store the Diamond Shield in a clean,
dust free area, where it will not be scratched.
To Install the Diamond Shield:
4. Slide the Diamond Shield into the bottom channel,
making sure it fits securely.
5. Press gently on the top of the Diamond Shield to
slightly bow the screen towards you. Insert the
top of the Diamond Shield into the top channel. It
should fit securely.
6. At each side, gently press the top, middle and
bottom of the Diamond Shield to snap it back into
place.
2
1
1
1
3
5
6
6
6
1
1
1
6
6
6
WARNING
Sharp edges! Always wear gloves to
handle, lift, install and remove the
Diamond Shield.
4
Page 17
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
CAUTION: Wear gloves when handling the Lenticular Screen and Fresnel Lens.
This prevents cuts and finger prints. Do not place Fresnel Lens in the sun.
This may cause fire and heat related injuries.
Lenticular Screen and Fresnel Lens Removal
1. Remove the screen assembly shown in the Cabinet Disassembly procedure.
2. Remove the four screws (a) to remove the bottom of the SCREEN-FRAME-BOTTOM .
3. Carefully slide the Lenticular Screen and Fresnel Lens combination from the Screen Frame assembly.
Note: When separating the Lenticular Screen from the Fresnel Lens, use caution
while prying the Screen and Lens apart. Use a slot type screw driver, and
remove the pressure sensitive double sided tape.
Page 18
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
Lenticular Screen and Fresnel Lens Installation
Note: Store the Lenticular Screen and Fresnel Lens in a cool dry place. High heat and humidity may
deform the Lenticular Screen and Fresnel Lens.
1. Apply double coated tape (Part #LENS-TAPE) along the top rear edge of the Lenticular Screen, as shown
below. Refer to the table below for the tape length.
2. Place the Fresnel Lens on top of the Lenticular Screen and apply pressure at the top edge
to bond them together.
3. Reverse the Screen Removal procedure to insert the screens in the Screen Frame Assembly.
*X INCHES - Refer to the Tape Length in the table below
MODEL SCREEN SIZE TAPE LENGTH
WD-52525 52 Inches 46.3 Inches
WD-52725 " "
WD-52825 " "
WD-62525 62 Inches 55.1 Inches
WD-62725 " "
WD-62825 " "
Page 19
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
INITIAL SETUP
OPTION MENU
1. Press the “MENU” button on the remote hand
unit.
2. Press the buttons “2”, “4”, “7” and “0” in order.
(The screen will change to the option menu.)
3. Select “Initialize” and press <ENTer> to restore
all Inital Main Menu Defaults and A/V Reset
Default settings to those listed in the following
two tables.
OPTION MENU <TV MENU> <2-4-7-0>
Initialize
Power Restore: Off
DTV Port: AUTO
Direct Key Mode : Off
NetCommand Software: V26 XXX.XX
Digital Signal Strength: X
00000 00000 00000 00000 00000
Tot al TV
On Time
Current
Lamp
Tim e
Previous
Lamp
Tim e
Previous
Lamp
Tim e 2
Initial Main Menu D efaults
Setup Menu
Language English Programs Not Rated Enable
Combine Channel View -- Movie Rating PG
NetCommand Menu
Edit -- Start 12:00pm
Transport Menu On S top 12:00pm
Default Digital Record Device -Icon Order -- Lock by Time On
Antenna Menu
Antenna 1 Unlock Time 12:00pm
Memorize -- Front B utton Lock Off
Prefer Digital -Channel 3 A/V Memory Res et Ant-1
Memory A dded Settings
Name -SQV -- Bass 50%
Time Me nu
Clock Setting Manual Balanc e 50%
Time 12:00pm Surround Off
Date -- Listen to (Analog Only) Stereo
Time Zone -- Level Sound (Analog Only ) On
Daylight Savings Time -- Language (Digital Only) English
Tim er --
Captions Menu
Analog Captions On if Mute Brightness 50%
Background Gray Sharpness 50%
Digital Caption On if Mute Color 50%
Appearance Default Tint 50%
Digital S ettings Color Temp High
Font Font 3 Video Noise Standard
Siz e Large Film Mode (Auto) On
Color White Define Edge On
Background Black Color Balanc e
Opacity Translucent Video M ute On
Background Opacity Translucent black Enhancem ent On
V-Chip Lock Menu
V-Chip Off
TV Rat i n g TV -P G
FV-Fantas y Violence Enable
D-Sexual Dialog Enable
L-Adult Language Enable
S-Sexual Situations Enable
Page 20
V-Violence Enable
V-Chip Time
Lock by Time
Lock Time 12:00pm
Audio/Video
Audio
Treble 50%
Video
Contrast 100%
TV Speak ers On
TV Volume
PIP Source
PIP Position
POP Position
PIP/POP Format
Format
30%
Ant 1 003
Lower Right
Right Half
Double W indow
Stretch
Previous
Lamp
Tim e 3
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
A/V RESET DEFAULT SETTINGS (By Input)
A/V Me mory Ant 1/2
Contrast Max. Max. Max. Max. Max. N/A
Brightness Center Center Center Center Center N/A
Sharpness Center Center Center Center Center N/A
Color Center Center Center Center Center N/A
Tint Center Center Center Center Center N/A
Color Temp. High High High High High N/A
Video Noise Standard Standard Standard N/A N/A N/A
TV Film Mode (Auto) On On On N/A On N/A
TV DefinEdge VS M On On On On On On
Bass Center Center Center Center Center Center
Treble Center Center Center Center Center Center
Balance Center Center Center Center Center Center
Surround OFF OFF OFF OFF OFF N/A
Listen To Stereo N/A N/A N/A N/A Stereo
Level Sound On On On On On N/A
INPUTS
1/2/3
Component
1/2/DTV
1394 w hen
connected
HDMI Card 1~4
A. A/V Memory
Each of the external inputs has its own Audio/Video Memory. A change in an A/V setting at a specific input is
stored in memory for that specific input.
B. A/V Reset
The AV Memory Reset in the user’s menu initializes the selected input’s A/V Memory.
Remote Control Operational Modes
There are two Remote Hand Unit Operational Modes, “Standard” and “NetCommand™”. The Remote is initially
in the “Standard” mode. The “NetCommand” mode is used when controlling Home Theater devices using
NetCommand. To change the Remote Operational Mode:
• Set the Remote to the TV Layer
• Point the Remote away from the TV.
• To change to “Netcommand” ... Hold the “Power” button and press “9-3-5” in sequence.
• To change to “Standard” ... Hold the “Power” button and press “0-0-0” in sequence.
Page 21
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
FRONT LED INDICATOR DIAGNOSTICS
The front panel LEDs provide an indication of the sets operation, and the possible cause of a malfunction. There
are three front panel LEDs, “Power”, “Status” and “Lamp”. Which LED is lit, the color, and whether it is blinking or
steady indicate the current status, or a possible malfunction.
Normal LED Indications
POWER
LED
Off Off Off Stby Off
Green Off Off P-0N Power On
Off Off
Blinks
Green
Slow Blinks
Green
STATUS
LED
LAMP
LED
Blinks
Green
Power
Status
After Turn
Off
Condition
Lamp Fan On for 1 minute
Off Off Stby Booting after AC applied
Off Off Stby On Timer is set
Abnormal LED Indications
POWER
LED
Off Yellow Off
Off or On Off Yellow
Off Off
Off
Off Off Red Stby Lamp did not turn On
Off
Off
Off
Off Red Off "
STATUS
LED
Blinks
Yellow
*Blinks
Red
**Blinks
Red
***Blinks
Red
*Blinks = (1 long/1 short)
**Blinks = (1 long/2 short)
***Blinks = (1 long/3 short)
LAMP
LED
Blinks
Yellow
Off " Filter Cover Open
Off
Off "
Off " DMD or Lamp Fan Stopped
Power
Status
Low
Power
No
change
Low
Power
Low
Power
Condition
Excess Temperature
Usage time over 4000 Hrs.
Lamp Cover open
Chassis Fan Stopped
Ballast or Exhaust Fan
Stopped
Short or DVI Cable from FMT
to DMD disconnected
Page 22
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
3. Error Code Operational Check
Note: The TV must be in “Shut Down” and not manually switched Off, to perform the Error Code Opera-
tional Check. When the TV is switched Off, the code automatically resets to “12” No Error.
Press the front panel “DEVICE” and “MENU” buttons at the same time, and hold for 5 seconds to
activate the Error Code Operational Check. The LED will then flash denoting a two digit Code.
Note: The front panel buttons must be used, NOT those on the Remote Control.
• The number of flashes indicates the value of the MSD (tens digit) of the Error Code.
• The flashing then pauses for approximately 1/2 second.
• The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.
Example: If the Error Code is “32”, the LED will flash three times, pause, and then flash two times.
• The Error Code is repeated a total of 5 times.
4. Error Codes
The Error Code designations are listed below:
ERROR CODES
Press and Hold "DEVICE" and "MENU" FOR 5 SECONDS
Error Code Probable Cause
12 No error detec ted
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chass is Fan failure
36 Ex haust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Ex cess Lamp Temperature
39 Ex cess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected
Page 23
MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
SERVICE ADJUSTMENTS
There are only 5 Service Adjustments required:
Two Electrical Adjustments
• Horizontal Centering
• Vertical Centering
Three Mechanical Adjustments
• Picture Rotation
• Horizontal Keystone Distortion
• Vertical Keystone Distortion
Tools, Test equipment and Test signals
• Conventional Hand Tools.
• No additional Test Equipment is required.
• Test Signals are internally generated, no external signals are required.
Circuit Adjustment Mode
On these models, the Circuit Adjustment Mode is used only for:
• Test Signal activation
• Horizontal Centering
• Vertical Centering
1. Activating the Circuit Adjustment mode
1. Press the “TV MENU” button on the remote control.
(The Customer Menu will appear.)
2. Press the buttons “2”, “4”, “5” and “7” in that order.
(The screen will change to the adjustment mode.)
If unsucessful, repeat steps 1 and 2.
2. Test Signal Activation
When in the Circuit Adjustment mode, press “REWIND” once on the remote control to activate the test pattern.
This pattern is used for both electrical and mechanical adjustments.
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MODEL: WD-52525 / WD-52725 / WD-52825 / WD-62525 / WD-62725 / WD-62825
3. Adjustment Function Selection
Use the “AUDIO” button to select a specific Adjustment Function.
AD9883A MMTX
Functions
SMTXlight engfmt
4. Adjusting Data
After selecting an adjustment item, use the UP and DOWN cursor buttons to change adjustment data.
• If the UP button is pressed, the adjustment data increases.
• If the DOWN button is pressed, the adjustment data decreases.
5. Saving data
Press “ENTER” to save the adjustment data in memory.
The display characters go red for about one second in this step.
Note: If the circuit adjustment mode is terminated without pressing
“ENTER”, changes in adjustment data are not saved.
6. Terminating the circuit adjustment mode
Press the “HOME button or the “MENU” button twice on the remote to terminate the adjustment mode.
Note: The adjustment mode can be also terminated by turning the
power off.
Resetting Data to Factory Values
1) Enter the Service Adjustment Mode ... Press “TV MENU” “2-4-5-7”
2) Press “0” when in the Service Mode ... Three choices appear at the top of the screen.
"TV MENU" "2-4-7-0" then "0"
Copy Light Engine EEPROM to DM
Restore backup
UPLOAD TERMINAL BOARD DATA
3) Use UP & DOWN keys to highlight the desired choice, then Press “ENTER”
• Copy Light Engine EEPROM to DM ... required after replacing the Light Engine or Electrical
Chassis.
• Restore Back Up ... resets Service Mode data back to factory values. Use this feature if service
adjustment data has been corrupted or improper adjustments have been performed.
• Up Load Terminal Board Data ... uploads White Balance data from PWB-SIGNAL.
(Do Not Select. This option is for depot level service only.)
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