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2006 2006 2006
2006 2006
Ser Service vice
Ser Ser Service vice vice
MITSUBISHI ELECTRIC
Manual Manual
Manual Manual Manual
LCD PROJECTION HDTV
V32/V32L CHASSIS
V32 Chassis
V32L Chassis
WD-52531
WD-62530
WD-52327
WD-62531
Pb S o ld e r
WD-52531
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
• Input Level : VIDEO IN JACK (RCA Type)
• Po
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MODEL: WD-52531 / WD-62531 / WD-62530 CONTENTS INTRODUCTION ................................................................................................................................5 Dimensions, weight, power usage, etc. ...........................................................................................5 PRODUCT SAFETY NOTICE ............................................................................................................. 5 SAFETY PRECAUTIONS ..........................
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MODEL: WD-52531 / WD-62531 / WD-62530 Digital Video Signal Path .............................................................................................................. 41 Sound Signal Path ........................................................................................................................ 42 Overall Control Circuitry ................................................................................................................ 43 Command Input Circuitry...............
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MODEL: WD-52531 / WD-62531 / WD-62530 INTRODUCTION This service manual provides service instructions for LCD Projection TV Models WD-52531 and WD-62531 using the V32 chassis, and WD-62530 using the V32L chassis. 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, PWBs, Light Engine, Lamp Ballast, etc.. 4. Electrical adjustments. 5
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MODEL: WD-52531 / WD-62531 / WD-62530 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 re
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MODEL: WD-52531 / WD-62531 / WD-62530 BACK-COVER Removal 1) Remove 2 screws (A) to remove the Lamp Cover 2) Remove 12 screws (B). 3) Pull the COVER-BACK from the cabinet. NOTE: To operate the TV the Lamp Cover must be reinstalled after the back cover is removed. Chassis Removal 1) Remove 2 screws (C). 2) Disconnect all cables connected to the chassis. 3) Carefully slide the chassis from the cabinet C C Page 7
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MODEL: WD-52531 / WD-62531 / WD-62530 Rear Plate & PWB-INTERFACE Removal 1) Remove 4 screws (a) and pull off the rear plate. 2) Remove 3 screws (b) to remove the PWB-INTERFACE PWB-POWER & Power Bracket Removal 1) Remove 4 screws (A) and lift PWB- POWER from the chassis. 2) Remove 8 screws (B) to remove the Power Bracket. Page 8
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MODEL: WD-52531 / WD-62531 / WD-62530 PWB-SIGNAL Removal PWB-DM Removal 1) Remove 6 screws (c). 1) Remove 6 screws (D). 2) Unplug all connecting cables. 2) Unplug all connecting cables. 3) Remove PWB-SIGNAL 3) Lift PWB-DM from the chassis. If PWB-SIGNAL is replaced, see page 22 to If PWB-DM is replaced, see page 22 to perform "Download WB Data to FMT" perform "Copy Light Engine E2PROM to DM" Exhaust Fan Replacement 1) Remove 7 screws (A) to A remove the lamp duct rear cover. A A A 2) Slide the E
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MODEL: WD-52531 / WD-62531 / WD-62530 Light Engine Replacement Light Engine and Associated Components The picture below shows the LCD Engine without added components, and the bottom picture shows the added components and the Engine mounted on the Engine Plate. Polarized Beam Splitter Side hole for lamp cooling. LCD panel area. Two induction fans. LCD Engine Note: The Engine has no individual service parts available. Attempting to disassemble the Engine may void the warranty. PWB-MTR-DRIVE (Rela
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MODEL: WD-52531 / WD-62531 / WD-62530 Light Engine & Engine Plate removal from the Cabinet Preliminary Refer to the chassis removal procedure and remove the BACK-COVER. Removal Procedure 1) Remove the 2 locking screwss (A). (c) 2) Loosen one (B) adjustment screw. (With only one (B) screw loose less adjustment is required when installing a new Engine.) 3) Partially slide the Engine and bottom plate out of the cabinet. 4) Loosen screw (C) and unplug the DVI cable from the Engine. 5) Disconnect all
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MODEL: WD-52531 / WD-62531 / WD-62530 Light Engine removal from the Bottom Plate (continued) 2) To remove the Engine from the bottom plate, remove 3 screws (a), and carefully lift the Engine from the bottom plate. 3) To remove the COVER- INDUCTION from the Engine 5 screws (b). Light Engine Installation CABLE CLAMP 1) Reverse the removal procedure to install a new light engine. 2) Tighten the DVI cable screw to 2-4 kgfcm. 3) Route the DVI cable and the KA-CN201 leads through the cable cl
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MODEL: WD-52531 / WD-62531 / WD-62530 Front Disassembly Screen Frame Removal 1) Pull off the Speaker Grill. 2) Remove all screws (B) from the upper rear cover (except one screw at a upper corner). The remaining screw supports the screen frame while removing the front screws. 3) Remove all screws (A) from the front of the screen frame. 4) Carefully pull the Screen Frame from the TV and disconnect the ES and LE connectors. Page 13
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MODEL: WD-52531 / WD-62531 / WD-62530 Screen Replacement 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 28 screws (A) to remove the top, bottom and side HOLDER-SCREEN rails and their SPACERS from the Screen Frame. (36 screws in the 62” model) 2) Lift the screens as a single unit from the frame.
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MODEL: WD-52531 / WD-62531 / WD-62530 V32/V32L REMOTE CONTROL 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.) V32/v32L Remote Button Name Changes Previous Model Name New Name HOME EXIT PIP/POP SPLIT SQV FAV DEVICE INPUT Digital Signal Strength 1. Tune to a Digital Channel 2. From the Option menu scroll down and highlight Digital Signal Strength 3. Press Enter Example using on ANT
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MODEL: WD-52531 / WD-62531 / WD-62530 Front Panel Initialization While the unit is ON, pressing the FORMAT and INPUT buttons simultaneously will immediately start the Initialization sequence. The TV will reboot once the initialization sequence is completed. Front Panel Initialization will reset ALL user settings to the factory setting. SERVICE TIP: Many customer generated symptoms, intermittent symptoms or no symptom found can be resolved by system reset st or initialization. Before visiting
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MODEL: WD-52531 / WD-62531 / WD-62530 DEFAULTS AFTER INITIALIZATION Setup Menu TV Rating :TV-PG Language :English FV-Fantasy/Violence -- Memorize Channels -- D-Sexual Dialog -- Ant1 Air -- L-Adult Language -- Ant1 Cable -- S-Sexual Situations -- Ant2 Air -- V-Violence -- Ant2 Cable -- Programs not rated -- Clock Movie Rating PG Clock Setting Manual V-Chip Time Time 12:00pm Start :12:00pm Date 1/01/04 Stop :12:00pm Time Zone :Eastern Lock by Time :Off Daylight S
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MODEL: WD-52531 / WD-62531 / WD-62530 AV RESET DEFAULTS Component A/V Memory Antenna 1&2 Input 1/2/3 HDMI 1/*2 1/2 Brillant/Bright/Natural Bright Bright Bright Bright Bright Contrast Maximum Maximum Maximum Maximum Bright Brightness Center Center Center Center Color Center Center Center Center Tint Center Center Center Center Sharpness Center Center Center Center Color Temp. High High High High Perfect Color Manual Center Manual Center Manual Center Manual Center Video Noise Standard Standard S
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MODEL: WD-52531 / WD-62531 / WD-62530 ABNORMAL LED INDICATIONS Power/Timer Status Indicator Lamp Indicator Condition Indicator Off Yellow Off Temperature high – room temperature too hot. Temperature sensor is disconnected. Off Off Yellow Lamp usage warning (over 5000 hours) Off Off Blinking yellow Lamp cover is open. Off Red Lamp fails to turn on Off Blinking Red Off Fan Stop Circuit failure (short) Off Red. Off DVI cable between DM and Engine disconnected Ballast problem detected by ballast U
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MODEL: WD-52531 / WD-62531 / WD-62530 Lamp Control Block Diagram Lamp Lights Replace then goes out Lamp Code 34 Code 34 Lamp Troubleshooting Lamp does Flow Chart not Light • Install Lamp Cover with no Lamp Check Cable Check No OK • Monitor Ballast spark gap. Connections Circuit Ballast • Press "POWER' DVI, FC & Problem Striking • Spark gap arc? CN101 Yes Code 66 Code 66 Replace Press Install Lamp Lamp "POWER" & Lamp Cover • H for 5 sec. • H for 4 sec. Check Pulses Yes Pulses Ballast • L
