Mitsubishi Electric WD-52631 User manual

• Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351JeronimoRoad,Irvine,CA 92618-1904
Copyright © 2006 Mitsubishi Digital ElectronicsAmerica, Inc.
AllRightsReserved
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCTSAFETYNOTICE" containedinthis manual.
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ManualManual
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20062006
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2006
MITSUBISHIELECTRIC
DLPPROJECTIONHDTV
V33 CHASSIS
SPECIFICATIONS
• Power Input : AC 120V, 60Hz
•Power Usage : See table on page 5
• LightEngine : DLPTM (1920 x 1080 pixels)
• Light Source : 150W (52, 57 & 65" models)
• Channel Range : Air VHF - 2~13, UHF - 14~69
Analog Cable - 1~125
Digital Cable - 1~135
•Antenna Input : 2 RF 75Ω unbalanced
• Tuning (V33) : 1NTSC/ATSC/QAM
1 Out of Band for CableCARDTM
(WD-57731 & WD-65731 Only)
• Cabinet Dimensions : See Table on page 5
• Weight : See table on page 5
• Speakers (4Ω 10W) : Two 5.75"x2.4"Oval
• Input Level : VIDEOINJACK(RCAType)
1.0Vp-p 75Ωunbalanced
: AUDIOIN JACK(RCAType)
-4.7dBm 43kΩunbalanced
: S-VIDEOIN JACK
(Y/C separate type)
Y:1.0 Vp-p C:0.286Vp-p(BURST)
75Ωunbalanced
: COMP/Y,Cr,Cb (RCAType)
Y: 1.0 Vp-p Cr, Cb: 700mVp-p
• Output Level : VIDEOOUTJACK (RCAType)
1.0Vp-p 75Ωunbalanced
: AUDIOOUT JACK (RCAType)
-4.7dBm 4.7kΩunbalanced
• Digital : IEEE-1394 I/O Jacks
: AC-3 Digital Audio Output
(RCAType)
: HDMITM
: DVI-I
: Lead-Free solder PWBs
WD-52327
V33 Chassis
WD-52631
WD-57731
WD-65731
WD-52527
Pb Solder
Pb Solder
WD-57731

Page 3
MODEL: WD-52631 / WD-57731 / WD-65731
INTRODUCTION ................................................................................................................................5
Dimensions,weight, powerusage, etc............................................................................................5
PRODUCTSAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS .................................................................................................................6
DISASSEMBLY ..................................................................................................................................7
RearCoverRemoval ........................................................................................................................7
ChassisRemovaland Disassembly ................................................................................................7
OpticalEngineRemoval ................................................................................................................ 11
WD-52631FrontDisassembly ......................................................................................................12
WD-57731& WD-65731 FrontDisassembly ................................................................................. 13
SERVICINGTHE LENTICULAR LENS AND FRESNEL SCREEN..................................................... 14
LenticularScreenand Fresnel LensRemovaland Replacement.................................................... 14
ADJUSTMENTS ...............................................................................................................................15
OptionMenu, Remote Controland Digital Signal Strength............................................................. 15
Initialization................................................................................................................................... 16
Defaults ........................................................................................................................................ 17
LEDIndicator Diagnostics............................................................................................................. 19
ErrorCodesOperationalCheck..................................................................................................... 19
ErrorCodes List................................................................................................................... 20
Lamp Troubleshooting ................................................................................................................... 20
LampControldiagram.......................................................................................................... 21
LampSwitch Disabling ........................................................................................................ 21
LampTroubleshootingFlowChart ........................................................................................ 22
CableCARD™Troubleshooting ..................................................................................................... 23
ServiceAdjustmentMode ............................................................................................................. 24
ServiceAdjustment Mode Operation .................................................................................... 24
Transferringdata .................................................................................................................. 25
OpticalEngineAdjustment............................................................................................................ 26
TestSignal activation ........................................................................................................... 26
Preliminary .......................................................................................................................... 26
Rotationand KeystoneDistortionAdjustment ...................................................................... 28
Aftercompleting Light EngineAdjustments .......................................................................... 28
Horizontal & Vertical Position............................................................................................... 29
USINGLEAD FREE SOLDER .......................................................................................................... 30
CHIPPARTSREPLACEMENT ......................................................................................................... 31
REPLACEMENTPARTS .................................................................................................................. 32
PartsOrdering .............................................................................................................................. 32
Criticaland WarrantyParts Designation........................................................................................32
PartsToleranceCodes.................................................................................................................. 32
QuickReference List ........................................................................................................................ 33
SERVICE PARTS LIST .................................................................................................................... 34
SCREENASSEMBLY PARTSLIST.................................................................................................. 41
CIRCUITRYBLOCK DIAGRAMS ..................................................................................................... 42
MainPower Supply ....................................................................................................................... 42
CONTENTS

Page 4
MODEL: WD-52631 / WD-57731 / WD-65731
xHD5Light Engine & Fan Power Supplies .................................................................................... 43
PWB-SIGNALVideo Path............................................................................................................. 43
PWB-DM Video Path .................................................................................................................... 44
SoundSelect Circuitry .................................................................................................................. 45
SoundSignal Path ........................................................................................................................ 46
OverallControlCircuitry ................................................................................................................ 47
CommandInputCircuitry............................................................................................................... 48
LampControlCircuitry .................................................................................................................. 49
xHD5Engine ProtectCircuitry ...................................................................................................... 50
Short Protect Circuit ..................................................................................................................... 50
AutoInput Detection ..................................................................................................................... 51
PowerDistribution......................................................................................................................... 52
SCHEMATICDIAGRAMS .....................................................................................................................
CableCARD is a trademark of Cable Television Laboratories, Inc.
Digital Light Processing, Digital Micro Mirror Device and DLP are Trademarks of Texas Instruments.
Dolby and Dolby digital are registered trademarks of Dolby Laboratories.
DTV Link is a trademark of Consumer Electronics Association
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing, LLC.

MODEL: WD-52631 / WD-57731 / WD-65731
Page 5
INTRODUCTION
This service manual provides service instructions for the V33 chassis. The specific models for this chassis type,
dimensionsand weight are listed below. Servicepersonnel should read this manualthoroughly before servicing these
chassis.
Thisservice manualincludes:
1. Assembly and disassembly instructions for cabinet and chassis components.
2. Servicingof the Lenticular Screenand FresnelLens.
3. Servicingprinted circuitboards (PCBs).
4. Electrical and Mechanical adjustments.
6. Chipparts replacementprocedures.
7. Circuitpath diagrams.
The parts list section of this service manual includes:
1. Cabinetand screen parts.
2. Electrical parts.
Schematicand block diagrams of the above listed models are included in this service manual for better understanding
of the circuitry.
PRODUCT SAFETY NOTICE
Manyelectrical and mechanical parts in television receivers have special safety related characteristics. These charac-
teristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by
usingreplacement componentsrated for higher voltage, wattage, etc.
Replacementparts 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 parts list of this
service manual, and by marking on the supplementary sheet for this chassis to be issued subsequently. Therefore,
the replacement for any safety part should be identical in value and characteristics.
MODEL CHASSIS HEIGHT WIDTH DEPTH WEIGHT POWER
USAGE
WD-52631 V33 33.3" 47.1" 17.1" 87.2 lbs 250W
WD-57731 " 36.3" 51.5" 18" 96 lbs 250W
WD-65731 " 40.8" 58.5" 19.8" 103.7 lbs 250W

Page 6
MODEL: WD-52631 / WD-57731 / WD-65731
SAFETY PRECAUTIONS
NOTICE: Observe all cautions and safety related notes located inside the receiver cabinet and on the
receiverchassis.
WARNING:
1. Operationof this receiver outside the cabinetor withthe coverremoved presentsa shock hazard
fromthe receiver's power supplies. Work onthe receiver should not beattempted by anyone who is
notthoroughly familiar withthe precautionsnecessary when workingon highvoltage equipment.
2. Whenservice is required, observe the original lead dress. Where a short-circuit has occurred, replace
thosecomponentsthat indicate evidenceofoverheating.
SAFETYPRECAUTION
To protect your eyes, do not look directly into the lamp, or 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
followingmethods.
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 shafts, 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 1 Meg Ohm.Any resistance below this value indicates an
abnormalconditionand requires correctiveaction.
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, andwith 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
switchingdevices of the receiver in their operating positions, measure the leakage current forboth
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).

MODEL: WD-52631 / WD-57731 / WD-65731
Page 7
Rear Cover Removal
Rear Cover Removal Procedure
1) Remove8 screws(A) from the External Input frame.
2) Remove10 screws (B) from the rear cover.
3) Pull the rear cover from theTV.
Chassis Disassembly
Chassis Removal from Cabinet
1) Removetwo screws (a)
2) Disconnect all cables connecting to
the chassis.
3) Carefully slide the chassis out of the
Cabinet.
Img_0184.jpg
a
a

Page 8
MODEL: WD-52631 / WD-57731 / WD-65731
Chassis (Exploded View)
Main Terminal Shield Removal
1) Remove 8 screws (A), 6 screws (B) and 5 screws from theTerminal Shield.
2) Remove4 nuts (C).
3) Pull theTerminal Shield from the chassis.
PWB-POWER
Chassis box cover
PWB-E2P
PWB-DM
Chassis box
Main Terminal cover
PWB-SIGNAL
Terminalshield
PWB-TERMINAL
DVI connector

MODEL: WD-52631 / WD-57731 / WD-65731
Page 9
PWB-TERMINAL Removal
Afterremoving theTerminal Shield:
1) Remove2 screws(A) from the
TerminalCover.
2) Carefullypull upward toremove the
PWB-TERMINALandCover from the
chassis.
PWB-POWER Removal
1) Disconnect all lead to the PWB-
POWER.
2) Remove 8 screws (B) from the PWB-
POWER.
3) Lift the PWB-POWER from the
chassis..
Chassis Box Top Cover Removal
1) Remove3 screws (C).
2) Lift the cover from the chassis box.
Chassis (top view)
PWB-SIGNAL Removal
Afterremoving the PWB-POWER and the
chassis box cover:
1) Remove7 screws (A) from PWB-
SIGNAL.
2) Disconnect all cables going to the
PWB-SIGNAL.
3) Lift PWB-SIGNAL from the chassis
box.
Chassis (top view)

Page 10
MODEL: WD-52631 / WD-57731 / WD-65731
PWB-DM Removal
AfterremovingPWB-SIGNAL:
1) Remove9screws (A)from the
PWB-DM.
2) Remove2 hex screws (B) from
theDVI connector.
3) Lift the PWB-DM from the
chassis box.
Chassis (top view)
Exhaust Fan Replacement
1) Remove4screws(A) and
removethe exhaust duct cover.
2) Slide the Exhaust Fan from the
ductand unplug the JF connec-
tor.
Note: Savethe rubbercush-
ions, they do not come with a
newfan.
3) Wheninstalling the fan ensure
the leads come out the bottom
of the fan as shown in the
picture.
A
Exhaust
Fan
A
A
A
If PWB-DM is replaced, transfer the PWB-E2P
from the old DM to the new DM.
Then perform the data transfer procedures
"Copy Light Engine E2PROM to DM"
and "Download WB Alignment to FMT"
described on page 25.
A
A
A
B

MODEL: WD-52631 / WD-57731 / WD-65731
Page 11
Optical Engine Removal
Engine (xHD5) Removal from cabinet xHD5 Engine Removal Procedure
1) Remove2 lockingscrews (b) and
groundscrew (c).
2) Loosen oneadjust screw (a). Less
adjustmentwill berequired when the
Engine is installed.
3) Disconnect all leads to the Engine,
Lamp Box and Ballast.
4) Carefully slide the Engine, with the
bottom plate from the cabinet.
Engine Removal from base plate
Removing the xHD5
Engine from the Plate
1) Removethe 2 screws
(a), and 4 screws (b).
2) Carefullylift the
enginefrom the base
plate.
3) Add a new cushion
behind the lens.
After Replacing Engine
Copy Engine Data to DM
Referto data transferon page24.
NOTE: AfterEngine replacement, verifythe foam gasket around thelens is properlypositioned andthat it doesnot block
the light path. The side portholes of the cabinet can be used for visual confirmation.
Note: The Engine has no individual
service parts available. Attempting
to disassemble the Engine may void
the warranty.

Page 12
MODEL: WD-52631 / WD-57731 / WD-65731
WD-52631 Models Front Disassembly
52” Models Screen Frame Removal
1) Pull off the Speaker Grille.
2) Removeall screws (a) fromthe upperrear
cover(except oneat an upper corner).
3) Remove12 screws (b) from the front of the
screenframe.
4) Removethe one remaining screw(a)at the
upperrear corner. Carefully pullthe Screen
Frame from the TV and unplug the ES
connector..
WD-52631 Screen Removal from the Frame
1) Fromthe rear of the
ScreenFrameremove16
screws (a) from the top
and bottom rails.
2) Remove6 screws (b)from
each side rail.
3) Carefullylift the Screen
assemblyfrom the
Frame.

MODEL: WD-52631 / WD-57731 / WD-65731
Page 13
WD-57731 & WD-65731 Front Disassembly
57” & 65” Models Screen Frame
Removal
1) Pull off the Speaker Grill.
2) Removeall thescrews (b) from the
upperrear cover(except one at an
uppercorner tosupport theframe).
3) Remove10 screws (a) fromthe
frontof the screen frame.
4) Removethe remaining screw(b)
(supportingthe frame). Carefully
pull the Screen Frame from the TV
and disconnect the ES and LE
connectors.
57” & 65” Models Screens Removal from Frame
1) From the rear of the Screen Frame remove 20 screws (a) from the top and bottom rails
2) Remove 6 screws (b) from each side rail.
3) Carefully lift the Screen assembly from the Frame.

Page 14
MODEL: WD-52631 / WD-57731 / WD-65731
Screen Replacement
CAUTION: Wear gloves when handling the LenticularScreen and Fresnel Lens.
This prevents cuts and finger prints. Do not place Fresnel Lens in the sun.
Thismay cause fire and heat related injuries.
Lenticular Screen and Fresnel Lens Replacement
1) Apply LENS-TAPE along the rear top edge of the Lenticular Screen.
2) Place the Fresnel Lens on top of the Lenticular Screen, and apply pressure along the top edge.
3) Place the screens in the screen frame and reinstall the cushions, top, bottom and side rails.
NOTE: The Lenticular Screen label must face the front and the Fresnel Lens label face the rear.
4) Reversethe Screen Removal Procedure and insert the screens in the Bezel.
Lenticular Screen and Fresnel Lens Removal
1) Removethe top, bottom and side HOLDER-SCREEN rails and their cushions from the Screen Frame.
2) Lift the screens as a single unit from the frame.
2. Separatethe Lenticular Screen and Fresnel Lens.
Note: Whenseparating theLenticular Screen from the Fresnel Lens, use caution
while prying the Screen and Lens apart. Use a slot type screw driver, and
removethepressure sensitive doublesided tape.

MODEL: WD-52631 / WD-57731 / WD-65731
Page 15
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.)
V33 REMOTE CONTROL
Previous Model Name New Name
HOME EXIT
PIP/POP SPLIT
SQV FAV
DEVICE INPUT
V33 Remote Button Name Changes
TotalLamp ONTime
Digital Signal Strength
SNR Recommended Levels:
VSB = 15 to 35
64 QAM = 22 to 34
256 QAM = 27 to 37
1.Tune to a Digital Channel
2. From the Option menu scroll down and highlight Digital Signal Strength
3. Press Enter Example using CableCARD on ANT1
Signal Quality
Index (0-100)
Signal Noise
Ratio
Tuner 0 Tuner 1 OOB Tuner
Frequency(MHz): 597 0 75.2
Signal Level: 8 0 0
Modulation: 256 QAM Unknown
Carrier Lock: Locked Unknown Locked
SQI: 100 0
SNR: 34.3 0 23.77
Correctable errors: 0 0
UnCorrectable errors: 0 0

Page 16
MODEL: WD-52631 / WD-57731 / WD-65731
RESET / INITIALIZE GUIDE
Reset Name When to use How to use Resulting Action
Remote Control TV
Layer Reset Returns the remote control TV layer to normal operation. (1) (2)
(3)
(3)
Set the slide switch to TV position.
Press and hold the POWER button until it
flashes twice then release the button.
Enter the code 0 0 9 3 5.
Once the valid code has been entered
and confirmed, the remote control has
been reset.
Remote Control TV
Volume/Mute
functions
Returns the volume and mute
functions of the remote control to
TV volume and mute for TV,
Cable/Sat, VCR and DVD layers
after the audio lock for AV
Receivers feature has been used.
(1)
(2)
(3)
(3)
Set the slide switch to TV position.
Press and hold the POWER button until it
flashes twice then release the button.
Enter the code 9 9 3 VOL UP.
The remote will now operate the TV's
volume and mute when the slide switch
is in the TV, CABLE/SAT, VCR or DVD
positions.
A
/V Memor
y
Reset,
single input When the audio and or video settings for a single input seems
to incorrect
MENU --> Audio/Video--> AV Reset All Audio and Video settings for the
individual input are reset except for the
Listen To and Language, audio
Balance and Closed Caption settings.
A/V Reset, all
inputs To reset audio and video adjustments for all inputs to the
original factory settings.
While viewing the TV, press the front panel
buttons GUIDE and FORMAT at the same
time.
All Audio and Video settings including
Listen To and Language, Closed
Captions settings and Format settings
are returned to the original factory
settings.
System Reset To reset the TV when it does not
turn on or off, does not respond
to the remote control, front panel
buttons or has audio but no
video.
Press the SYSTEM RESET button on the
front panel with a pointed object such as
the point of pencil or end tip of a paperclip.
The changes you made most recently,
before using the SYSTEM RESET, may
be lost. Changes you made previously,
however, are not lost.
TV Reset To reset all customer settings Press MENU-1-2-3-ENTER All customer settings except V-Chip are
reset.
Initialize - User
Level To reset all consumer adjusted settings and memories to the
original factory defaults.
Press FORMAT and INPUT buttons on the
front control panel at the same time. All memories and settings outlined in
the Owner's Guide will need to be set
again.
Initialize - Service
Level To reset all consumer adjusted settings and memories to the
original factory defaults.
MENU + 2470. Highlight INITIALIZE and
press ENTER All memories and settings outlined in
the Owner's Guide will need to be set
again. Also erases V-CHIP password
Factory Restore To recover from data/adjustment
errors in the ISF menu MENU + 2457 + 0. Highlight RESTORE
FACTORY DEFAULTS and press ENTER All service, user, ISF data is set back to
factory defaults.
NOTE: DuringInitialization, the set will
reboot. Waituntil the PowerLED stops
flashingbefore unplugging orpowering
ON theTV.
Front Panel Initialization (new in the V33)
While the unit is ON, pressing the FORMAT and INPUTbuttons simultaneously will immediately start the Initialization
sequence. TheTV will reboot once the initialization sequence is completed. Front Panel Initialization will resetALL
user settings to the factory setting.
SERVICE TIP:
Many customer generated symptoms, intermittent symptoms or no symptom found can be resolved by system reset
or initialization. Before visiting the customer’s home ask the customer 1st to try the System Reset button on the
control panel and if this does not resolve the issue, then they can use the front panel initialization by pressing the
FORMATand INPUT buttonssimultaneously

MODEL: WD-52631 / WD-57731 / WD-65731
Page 17
INITIAL DEFAULT SETTINGS
Duration 1 hr. Lock by Time Off
Language (Idioma) English Start Time -- Lock Time 12:00pm
Memorize Channels -- Day -- Unlock Time 12:00pm
Ant1 Air -- Record List -- Front Panel Lock Off
Ant1 Cable -- Audio/Video
Ant2 Air -- Antenna 1 A/V Memory Reset Ant-1
Ant2 Cable -- Channel 2 Settings
Clock Memory Added Audio
Clock Setting Manual Name Blank Bass 50%
Time 12:00PM FAV Blank Treble 50%
Date 1/1/2006 Signal Strength (Depends on Balance 50%
Time Zone Eastern digital source) Surround Off
Daylight Savings Applies Listen To (Analog Only) Stereo
Timer Gray out Analog Captions On if Mute Level Sound On
Timer Off Background Gray Language (Digital Only) English
Day Daily Digital Captions On if Mute Video
Time 12:00PM Appearance Default Picture Mode Brilliant
Device ANT-1 Digital Settings Contrast 100%
Channel 2 Font Font 3 Brightness 50%
Demo mode Grey out (mode off) Size Large Color 50%
Software Version V33 XXX.XX Color White Tint 50%
Background Black Sharpness 50%
Edit Review Opacity Translucent Brilliant Color Temp High
Input Name -- Perfect Color Perfect color
Input-1 -- U.S Ratings (DefineEdge)
Input-2 -- US Ratings Off Video Noise Medium
Inout-3 -- TV Rating TV-PG Video Mute On
Comp-1 -- FV-Fantasy Violence unchecked TV Speakers On
Comp-2 -- D-Sexual Dialog unchecked Film Mode Auto
HDMI-1 -- L-Adult Language unchecked TV Volume 30%
HDMI-2 -- S-Sexual Situations unchecked DW Source ANT 1 002
AV Receiver Setup Off, Learn&Connect V-Violence unchecked DW Position Right half
buttons grayed out Programs Not Rated unchecked PIP/POP Format Double Window
Icon Order Ant-1, Ant-2, Input-1, Movie Rating PG Format
Input-2, Input-3, V-Chip Time Ant-1,2 (480I/480P) Stretch
Comp 1 & Comp-2 Start 12:00pm Ant-1,2 (HD Digital) Standard
PC DVI Digital Stop 12:00pm Input-1,2,3 Standard
Record Other Ratings Comp-1,2,3 Standard
Record Other ratings Off HDMI-1,2 (Video) Standard
Channel 2 Rating Group TBD 1394 Devices Standard
Record to -- Rating TBD DVI-I PC Standard
Setup Menu
Clear Thought Menu
Parent Lock Menu
Captions Menu
Channel

Page 18
MODEL: WD-52631 / WD-57731 / WD-65731
A. A/V Memory
Each of the external inputs has it’s ownAudio/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
1. Pressing the front panel “GUIDE” and “FORMAT” buttons at the same time initializes allA/V Memories.
2. The AV Reset in the user’s menu initializes only the selected input’sA/V Memory.
A/V DEFAULTS
A/V Memory Ant 1
Ant 2 INPUT 1/2/3 COMP 1/2 1394
(connected) HDMI 1/2
(Video) DVI-I(PC)
Picture Mode Brilliant Brilliant Brilliant Brilliant Brilliant n/a
Brilliant Contrast MAX MAX MAX MAX MAX MAX
Brilliant Brightness Center Center Center Center Center Center
Color Center Center Center Center Center n/a
Tint Center Center Center Center Center n/a
Sharpness Center Center Center Center Center n/a
Color Temp. High High High High High High
Perfect Color Manual/
Center Manual/ Center Manual/ Center Manual/ Center Manual/ Center Manual/ Center
Video Noise Medium Medium Medium Medium Medium n/a
Film Mode (Auto) On On On N/A On n/a
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 Off
Listen To Stereo n/a n/a n/a n/a n/a
Level Sound On On On On On On
Language (Digital Only) English n/a n/a English n/a n/a
Vertical Position n/a n/a n/a n/a n/a Center
Horizontal Position n/a n/a n/a n/a n/a Center
Fine Detail n/a n/a n/a n/a n/a Center

MODEL: WD-52631 / WD-57731 / WD-65731
Page 19
3. Error Code Operational Check
Note: The TV must be in Shut Down and not have been switched Off, to perform the Error Code Opera-
tional Check. When the TV is switched Off, the code automatically resets to 12 No Error.
Pressing the front panel INPUT and MENU buttons at the same time, and holding for 5 seconds,
activates the Error Code Mode. The TIMER LED flashes denoting a two digit Error Code, or indicating no
problem has occurred since the last Initialization.
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.
The Error Code is repeated a total of 5 times.
Example: If the Error Code is 23, the LED will flash two times, pause, and then flash three times.
Power/Timer
Indicator
Status
Indicator Lamp Indicator Condition
Off Off Off Off (standby)
Blinking green
fast
Off Off Initialization (45-60 seconds)
Off Off Blinking green
slow
Lamp cooling for 1 min after PTV
off
Green Off Off Power On
Blinking green
slow
Off Off Power On Timer is set
NORMAL LED INDICATIONS
Power/Timer
Indicator Status Indicator Lamp Indicator Condition
High Temperature - check ventilation air flow.
Temperature sensor is disconnected.
Off Off Blinking yellow Lamp cover is open.
Lamp failure
Off
Off
Red*
Lamp fails to turn on
Lamp turns off during P-On
Lamp is broken
Off Blinking Red Off Fan Stop
Off Red. Off Circuit failure. (Run Error Code Check)
* A red Lamp LED only occurs after 3 attempts to light the lamp. Each attempt (pressing POWER)
must be at least 65 seconds apart. During each attempt ballast striking may be audible.
ABNORMAL LED INDICATIONS
Off Yellow Off
LED Indicator Diagnostics
The front panel LEDs provide an indication of the sets operation, and the possible cause of a malfunction. There are three
front panel LEDs, Power, Status and Lamp. The LED display shows the current status or indicates a possible
malfunction.

Page 20
MODEL: WD-52631 / WD-57731 / WD-65731
4. Error Codes
The Error Code designations indicating malfunction, or no malfunction, are listed below:
Lamp Troubleshooting
Use the above Error Code Table, the Lamp Control Block diagram, and the Troubleshooting flow chart on the following pages
to determine is a lamp problem is due to the Lamp, Ballast, Power Supply or Light Engine.
Code 34(1) - Lamp Enable is generated to activate the Lamp
Code 57(2) - Lamp Enable is generated during P-ON sequence, but no Lamplit signal is received from the Ballast.
Code 61(3) - No Lamp Enable is received at the DM and Ballast.
Code 66 (4) - Lamp enable is received at the DM but not at the Ballast.
Code Description
12 No Error found
32 Lamp cover is open.
Lamp turns Off while the TV is playing.
34(1) (Lamp failure)
(Lamp Enable signal from engine is lost)
36 Lamp ballast fan failed.
37 Engine (DLP) fan failed.
38 Lamp temperature abnormally high. Remove Lamp to check filter.
39 DMD temperature abnormally high.
42 Exhaust fan failed.
44 Check for disconnected DVI cable between PWB-DM and Engine.
48 Engine power supply short is detected.
57(2) Ballast communication problem (ballast to chassis)
58 Signal Short is detected
59 DM short is detected
61(3) No LAMP-EN output from the engine to the ballast
Lamp did not turn on at P-ON sequence
66(4) (No Lamp inserted)
(Disconnected cable between ballast and lamp)
(Lamp-Enable goes to DM but not to Ballast)
ERROR CODES