Ser vice Manual 2005 MITSUBISHI ELECTRIC DLP PROJECTION HDTV V29 / V30 / V30+ / V31 CHASSIS WD-52327 WD-52527 WD-62827 V29 Chassis WD-52627 WD-62627 V30 Chassis WD-52628 WD-62628 WD-73727 V30+ Chassis WD-62827 WD-73827 V31 Chassis WD-62927 WD-73927 Pb Solder CAUTION: Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and "PRODUCT SAFETY NOTICE" contained in this manual.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 CONTENTS INTRODUCTION ................................................................................................................................ 5 Model Dimensions and Weight Specifiations ................................................................................... 5 PRODUCT SAFETY NOTICE .............................................................................................................
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 SERVICE PARTS LIST .................................................................................................................... 56 SCREEN ASSEMBLY PARTS LIST .................................................................................................. 67 WD-52627 / WD-52628 / WD-62627 / WD-62628 .......................................................................... 67 WD-62827 / WD-62927 ......................
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 INTRODUCTION This service manual provides service instructions for DLP Projection TV Models and Chassis: Dimensions/Weight MODEL WD-52627 WD-52628 WD-62627 WD-62628 WD-62827 WD-62927 WD-73727 WD-73827 WD-73927 CHASSIS HEIGHT V29 V30 V29 V30 V30+ V31 V30 V30+ V31 34 in. " 40.5 in. " " " 44.8 in. " " WIDTH DEPTH WEIGHT 49.6 in. " 58.3 in. " 60.3 in. " 69.9 in. " 69.8 in. 18.6 in. " 20.3 in " " " 21.5 in. " " 121 lbs.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 SAFETY PRECAUTIONS NOTICE: WARNING: 1. 2. Observe all cautions and safety related notes located inside the receiver cabinet and on the receiver chassis. Operation of this receiver outside the cabinet or with the cover removed presents a shock hazard from the receiver's power supplies.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 CABINET FRONT DISASSEMBLY (WD-52627 / WD-52628 / WD-62627 / WD-62628) SPEAKER GRILLE & BEZEL Removal 1) Pull the SPEAKER-GRILLE away from the cabinet to remove. 2) Pull the BEZEL from the cabinet. SCREEN-ASSY Removal 1) Remove 10 screws (a) from the upper cabinet rear cover (3 screws on each side and 4 screws across the top).
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62827 Front Disassembly FRONT PANEL CAPS Removal 1) Slide the FRONT PANEL CAPS towards the sides of the unit. 2) Pull the FRONT PANEL CAPS from the unit. TOP TRIM and FRONT ESCUTCHEON Removal 1) Remove screw (a) to remove the TOP TRIM. 2) Pull off the FRONT-ESCUTCHEONS.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62827 Front Disassembly (continued) SIDE-TRIM Removal 1) Remove screws (a) and (b) on each side of the unit. 2) Pull off the SIDE-TRIM on each side. BEZEL Removal 1) Remove screws (c) to remove the BEZEL.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62827 Front Disassembly (continued) SCREEN ASSY Removal 1) Remove screws (e) from the top and sides of the upper rear cover. 2) Remove screws (d) from the bottom of the SCREEN ASSY. 3) Lift the SCREEN ASSY up slightly and pull away from the cabinet.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62927 Front Disassembly FRONT ESCUTCHEONS, CARD READER/CONTROL Assy and PEDESTAL COVER Removal 1) Remove 6 outer screws “A” at the rear sides of the cabinet. (Do not remove inner screws). 2) Pull the Right and Left Front Escutcheons from the cabinet. 3) Pull the Pedestal Cover forward to remove.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62927 Front Disassembly (continued) TOP, BOTTOM and SIDES TRIM Removal 1) Remove screws (b) to remove the Top Trim. 2) Remove screws (c) to remove the Bottom Trim.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62927 Front Disassembly (continued) FRONT BEZEL Removal 1) Remove screws (e) from the FRONT-BEZEL. 2) Pull the FRONT-BEZEL from the cabinet.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62927 Front Disassembly (continued) SCREEN ASSEMBLY Removal 1) Remove screws (f) from the upper rear cover (3 at each side and 4 acrross the ). 2) Remove screws (g) at the bottom of the screen. 3) Lift the Screen Assembly slighly and pull away from the unit.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-73727 / WD-73827 Front Disassembly CARD READER REMOVAL 1) Pull the two PANEL-FRONTs from the cabinet. 2) Remove screws ((a) from the Card Reader. 3) Slide the Card Reader and Control Assembly out the front of the TV. (To remove the Card Reader completely unplut the connectore LL, CE1, J8202 and 1394.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-73727 / WD-73827 Front Disassembly (continued) GRILLE-SIDE REMOVAL 1) Remove screw (b) in the GRILLE-SIDE LEFT and GRILL-SIDE RIGHT 2) Pull the two GRILLE-SIDEs from the unit. SCREEN-ASSY REMOVAL 1) Remove screw (c) along the top and sides of the upper rear cover. (4 across the top and 3 on each side). 2) Remove two screw (d) on the bottom on the SCREEN-ASSY. 3) Lift the SCREEN-ASY slightly and pull it away from the TV.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-73927 Front Disassembly CARD READER REMOVAL 1) From the rear of the TV, remove 2 screws “B”, and 6 outer screws “A” from each side of the TV. 2) Pull of the right and left GRILLE-SIDEs. .
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-73927 Front Disassembly (continued) SCREEN-ASSY Removal 1) Remove screws (f) along the top and sides of the upper rear cover. (4 across the top and 3 on each side). 2) Remove two screw (g) on the bottom on the SCREEN-ASSY. 3) Lift the SCREEN-ASY slightly and pull it away from the TV.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Cabinet Rear Disassembly BACK-COVER Removal 1) Remove screws (a) and (b) from the the BACK-COVER. 2) Pull the BACK-COVER from the set. Accessing the MIRROR from the rear (52 and 62 inch models ONLY) 1) Remove screws (c). 2) Pull the Rear Mirror Access panel from the unit.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Chassis Disassembly / Accessing PWBs Note: Although not individually indicated, unplug the required connectors in each disassembly step. Chassis Sequence of Disassembly REMOVE Chassis Top Cover (Fig. 1) REMOVE PWB-POWER (Fig. 3) REMOVE Assy PWB-TERMINAL (Fig. 2) REMOVE Chassis Top Shield (Fig. 3) REMOVE PWBs MICRO / FMT/ RISER (Figs. 4 & 5) REMOVE Chassis Rear Shield (Fig. 6) REMOVE PWB-DM (Fig.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Chassis Removal from the cabinet After removing the Rear Cover: 1) Remove screw (a), (b) and (c) to remove the back terminal board cover. (Figure A) 2) Remove screw (d) to remove the support bracket on each side of the chassis. (Figure B) 3) Remove the chassis mounting screws (e) on each side of the chassis. (Figure (C) 4) Unplug all connectors to the chassis and carefully slide the chassis from the cabinet.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Chassis Cover Removal (Figure 1) 1) Remove the 3 screws (a). 2) Lift the Cover from the chassis. Figure 1: Chassis Cover Removal Assy PWB- TERMINAL Removal (Figure 2) 1) Remove 7 screws (b) to remove the TERMINAL-INLAY. 2) Remove 3 screws (c) to remove the Assy PWB-TERMINAL.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 PWB-POWER Removal (Figure 3) 1) Remove four screws (d). 2) Disconnect all connectors to PWB-POWER. 3) Lift PWB-POWER from the chassis. Chassis Upper Shield Removal (Figure 3) 1) Remove seven screws (e). 2) Lift the Shield from the chassis.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 PWB-MICRO Removal Referring to Figures 4 & 5 . 1) Remove the 2 HDMI socket screws (f). 2) Remove 3 mounting screws (g) from PWB-MICRO. 2) Unplug PWB-MICRO from PWB-RISER and remove it from the chassis. Figure 5: PWB-MICRO Mounting Screws Figure 4: HDMI Socket Screws PWB-FORMAT & PWB=RISER Removal Referring to Figures 6 After removing PWB-MICRO: 1) Remove screw (h). 2) Unplug the PWB-FORMAT and PWB-RISER from PWB-DM.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 PWB-DM Removal Chassis Rear Shield Removal (Figure 7) 1) Remove 7 screw ( j ) 2) Remove 2 nuts ( j1 ) 3) Pull off Chassis Rear Shield. Figure 7: Chassis Rear Shield PWB-DM Removal (Figures 8) 1) Remove 3 screws (k) holding the PWB-MICRO Support Bracket. 2) Remove the Support Bracket. 3) Remove the five screws (m). 4) Remove the PWB-DM from the chassis.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 OPERATING CHASSIS OUTSIDE OF CABINET 1) Remove screws from back terminal board.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 7) Pictured below is proper wire routing, please verify during re-assembly 8) Disconnect connector PL and remove screw H = (1) H PL PL 9) Remove connectors PC, PA1, PB, PD and DVI cable PC PA1 10) Remove cover shield for Power PWB.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 13) Pull Terminal PWB from chassis assembly and remove fan connector JD from Micro PWB 14) Setup power section next to remaining chassis section as pictured below. JD NOTE: Unit can be operated without Terminal PWB or Chassis Fan installed. Without Fan connected, TV will shutdown if Micro PWB (Bottom side) temperature becomes too hot. NOTE: It is recommened to use a separate AC cord.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 52” & 62” Models OPTICAL ENGINE REPLACEMENT Pull engine from base and remove all the listed parts on this page and transfer them to new engine. Then transfer EEPROM data and realign mechanical.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 52” & 62” Models OPTICAL ENGINE REPLACEMENT (Details) 1) Remove screws (3) 2) Remove mounting screw 3) Disconnect JA, JF, LT connectors 4) Disconnect JC and CD connectors LT JC JA CD JF 5) Remove DVI cable and disconnect JE and DT connectors. Remove Ground Straps.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 52” & 62” OPTICAL ENGINE REPLACEMENT (Details) 7) Remove (3) screws from Interface PWB 8) Remove CJ3 connector from Interface PWB CJ3 9) Remove (2) screws from Side Lock 10) Route wiring so that it does not snag on support post. 11) Disconnect PA1 and J3 connectors and remove Engine-PWR-PWB 12) Pull Optical Engine from cabinet.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 52” & 62” OPTICAL ENGINE REPLACEMENT (Details) 13) Remove (3) screws from Lamp Duct 14) Remove (2) screws from Lamp Cartridge - and remove Lamp Cartridge 15) Remove (4) screws from Ballast Plate 16) Remove Bottom Plate from Engine Plate. Remove (5) screws C - B - A (in that order) C Remove Screws “C” under the Bottom Plate. A B Remove Screws “B” from the rear of the Engine. Remove Screws “A” from the top of the Engine.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 52” & 62” Models OPTICAL ENGINE REPLACEMENT (Details) 17) Be sure not to misplace spring 18) Remove (1) screw from plate (A), (4) screws from fan (B), (2) screws from side lock (C) and (2) grounding strap screws (D) C D Spring A B 19) Transfer LENS COVER from service part to defective part Reassembly: 1) Attach LENS CUSHION BASE to Engine Lens Cushion Base Follow above steps in reverse order TIP: Lift and group wiring on
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 73 “ Model’s OPTICAL ENGINE REPLACEMENT Pull engine assembly from the cabinet, and remove the Optical Engine from the base. Remove all the listed parts on this page and transfer them to new engine. Then transfer EEPROM data and realign the mechanical adjustments.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 73” Models OPTICAL ENGINE REPLACEMENT (Details) Engine Assembly removal from the cabinet. After removing the Back Cover: 1) Remove 4 screws (a) to remove the Vertical Support and DM Fan Cover. 2) Remove screw (b) to remove the Lamp Box cover. a LAMP COVER b VERTICAL SUPPORT DMD FAN COVER 3) Remove 3 Screws (c) and disconnect all leads to the Optical Engine. 4) Remove screw (d) from PWB-INTERFACE.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 73” Models OPTICAL ENGINE REPLACEMENT (Details) Engine removal from the Base Plate Assembly. 1) Remove 2 screws (e) and 2 screws (f) to remove the Joining Bracket. f Joining Bracket e 2) Remove the Rubber Wedge and 2 screws (g) at the rear of the Engine. g Rubber Wedge 3) Remove screw (h) on top of the Engine, and unplug the ballast leads from the Lamp Box.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 73” Models OPTICAL ENGINE REPLACEMENT (Details) Engine removal from the Base Plate Assembly (continued) 4) Carefully lift the Engine from the Base Plate. CAUTION: Do Not lose the spring sitting in the Base Plate Assembly. DO NOT LOSE Engine Installation Reverse the procedure to install the new Engine. After Replacing the Optical Engine: Transfer Data from the new Engine to the DM (refer to page 45).
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 DIAMOND SHIELD REPLACEMENT (WD-62927 / WD-73927 Only) 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.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 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 as shown in the Cabinet Disassembly procedure. 2.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 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 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.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 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.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 A/V RESET DEFAULT SETTINGS (By Input) INPUTS Component 1394 when HDMI 1/2 Ant 1/2 1/2/3 1/2/DTV connected (Video) Bright Bright Bright Bright Bright MAX MAX MAX MAX MAX Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center Center High High High High High Manual/ Manual/ Manual/ Manual/ Manual/ Center Center Center Center Center A/V Memory Bright/Nat
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Abnormal LED Indications POWER LED STATUS LED LAMP LED Off Yellow Off Off or On Off Yellow Off Off Blinks Yellow Power Status Low Power No change Low Power Off Off Off Off Blinks Yellow Off Blinks Red Off " Red Stby Low Power Red Off Off " Condition Excess Heat. Check Lamp Filter 120w usage time over 7000 Hrs. 150W usage time over 3500 Hrs.
SERVICE MANUAL SUPPLEMENT MODELS WD-62827 / WD-62927 AIR FILTER CLEANING If the TV shuts off after displaying the message “TV will shut down in a few seconds. Please check if the air flow is blocked.” and/or the Status LED is yellow, the Air Filter may need cleaning. The Air Filter is part of the Lamp Cartridge. Use the following steps for filter cleaning. 1) Refer to the Owner’s Guide to remove the Lamp Cartridge. Be sure to observe all cautions.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Remote Control Operational Modes There are two Remote Hand Unit Operational Modes, “Standard” and “NetCommandTM”. The Remote is initially in the “Standard” mode. The “NetCommandTM” mode is used when controlling Home Theater devices using NetCommandTM. To change the Remote Operational Mode: • Set the Remote to the TV Layer • Point the Remote away from the TV. • To change to “NetcommandTM” ...
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 3. Adjustment Selection Use the “VIDEO” button to select a specific electrical ajustment, “1 HPOS” or “2 VPOS”. 4. Adjusting Data After selecting an adjustment item, use the “UP” and “DN” buttons to change adjustment data. ª If the “UP” button is pressed, the adjustment data increases. ª If the “DN” button is pressed, the adjustment data decreases. 5. Saving data Press “ENTER” to save the adjustment data in memory.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Optical Engine Adjustments Test Signal Activation 1) Press “MENU-2-4-5-7” (Service Mode) 2) Press “REW” (Test Pattern). Red = 4% overscan White = 5% overscan Green = 6% overscan Cyan = 7% overscan Yellow = 10% overscan Required Tools • • • 4mm Hex Wrench (10 inches long minimum ) 5mm Allen Wrench ( 10 inches long minimum) 10mm Hex or Phillips driver.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 ACCESSING MECHANICAL ADJUSTMENTS WD-52627 / 62627 / 52628 / 62628 1) Pull Speaker Grille out. 2) Remove (2) screws (A) and pull Card Reader to access adjustment. Speaker Grille A WD-62827 1) Remove (6) screws (A) to remove card reader cover. 2) Remove (2) screws (B) to remove card reader.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-62927 1) Pull Pedestal Cover out. Adjustment is now accessable. Adjustment Access Pedestal Cover WD-73727 / 73827 1) Pull the Panel Caps from the unit to remove them. 2) Remove (4) screws (A) to pull out entire Card Reader Unit.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 WD-73927 1) Remove (16) screws (A). 8 on each side. (Remove only the outside screws. Do not remove inside screws, they are for the Screen Frame) 2) Pull Front Panel Escushions from unit. A A A A 3) Remove (8) screws (B) and remove the Pedestal Cover. Mechanical adjuster is now accessable. B B Locking Screws and Wedge Removal Before mechanical adjustments can be made, locking screws must be loosened.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Locking Screws (continued) • • In 73” models, loosen the 4 screws [C] in the Joining Bracket. (Figure 3) Remove the rubber wedge shown in [C] [C] Figure 3: Joining Bracket Lock Screws WEDGE Figure 4: Rubber Wedge ADJUSTMENT PROCEDURES Adjustment Locations [A-2] The Mechanical Adjustements are accessed though the opening for the Card Reader. Locations of the Adjustmentts are shown below.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Rotation Adjustment Adjust [A-2] to remove any picture rotation Horizontal Keystone Adjustment Adjust [A-3] to remove horizontal keystone distortion. NOTE: Vertical Positioning may shift Vertical Keystone Adjustment Adjust [A-1- To remove vertical keystone distortion. [A-1] can only be accessed by the front access hole shown above. NOTE: Horizontal Positioning may shift.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Pb Solder Using Lead Free Solder • • The above symbol indicates Lead (Pb) Free solder was used during the construction of PWBs. Only Lead Free solder should be used when servicing these PWBs. Solder must be compatible with that used by the manufacturer. Leaded solder can not be used on PWBs manufactured with Pb-free solder. The Mitsubishi standard for service requires the use of Tin-SilverCopper (Sn-96.5, Ag-3.0, Cu-0.5).
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 CHIP PARTS REPLACEMENT Some resistors, shorting jumpers (0 Ohm resistors), ceramic capacitors, transistors and diodes are chip parts. The following precautions should be taken when replacing these parts. Chip Parts Removal (Transistors) 1. Melt the solder of one lead and lift the side of that lead upward. 2. Simultaneously melt the solder of the other two leads and lift the part from the PCB. Cautions: 1.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 REPLACEMENT PARTS Parts Ordering To expedite delivery of replacement parts orders, specify the following: 1. Model Number/Serial Number 2. Part Number and description 3. Quantity Note: Unless complete information is supplied, delay in processing of orders will result. Critical and Warranty Parts Designation Critical Electrical Components are indicated by Bold Type in the Parts List, and in the schematic diagrams by shading.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 QUICK REFERENCE FOR COMMON PARTS MAJOR PWB ASSEMBLIES PWBs ASSY-PWB-POWER2 ASSY-PWB-TERMINAL ASSY-PWB-MICRO ASSY-PWB-DM ASSY-PWB-V29FMT ASSY-PWB-RISER ASSY-PWB-DEMOD1 ASSY-ENG-POWER PART NO.
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] INTEGRATED CIRCUITS IC101 IC102 IC105 IC106 IC107 IC1501 IC1505 IC1506 IC1507 IC1601 IC1606 IC1607 IC2000 IC2001 IC2002 IC2003 IC2101 IC2102 IC2103 IC2401 IC2600 IC2C01 IC2C02 IC2C03 IC2C04 IC2K01 IC2K02 IC2K03 IC2K04 IC3E00 IC3E01 IC3J01 IC3J
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description IC8508 IC8510 IC8511 IC8512 IC8513 IC8600 IC8601 IC8602 IC8603 IC8604 IC8A00 IC8A00 IC8A01 IC8A02 IC8A03 IC8E01 IC8E03 IC8F01 IC8G01 IC8G02 IC8G05 IC8G07 IC8G08 IC8G09 IC8K01 IC8K02 IC8K02 IC8K03 IC8K03 IC9A10 275P675010 275P464010 271P171010 271P
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] Ref # D7L20 D7L21 D7L22 D7L23 D7L70 D7L71 D7L72 D7L73 D8280 D8701 D8702 D8703 D8704 D8A01 D8A02 D8A03 D8A04 D8A05 D8G05 D8G07 D8G08 D8G09 D9A00 D9A01 D9A02 D9A03 D9A04 D9A18 D9A19 D9A20 D9A22 D9A23 D9A24 D9A25 D9A26 D9A31 D9A32 D9A33 D9A35 D9
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # L1604 L1608 L1609 L1612 L1613 L1615 L1616 L1617 L1619 L1620 L2018 L2118 L2201 L2202 L2203 L2207 L2213 L2216 L2219 L2222 L2235 L2237 L2238 L2255 L2287 L2289 L2294 L2295 L2296 L2334 L2337 L2401 L2402 L2403 L2404 L2600 L2C01 L2C02 L2C03 L2C04 L2C11 L2C11 L2E00 L2E01 L2J01 L2J02 L2J03
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] Ref # L7T02 L7T02 L7T03 L7T03 L7T04 L7T05 L7T06 L7T07 L7T07 L7T08 L7T08 L7T09 L7T09 L7T10 L7T10 L7T11 L7T11 L7T12 L7T12 L7T13 L7T13 L7T14 L7T14 L7T15 L7T15 L7T16 L7T16 L7T17 L7T17 L7T18 L7T18 L7T19 L7T19 L7T20 L7T21 L7T21 L7T22 L7T22 L7T23 L7
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # L8A08 L8A09 L8A10 L8A11 L8A12 L8A13 L8A16 L8A17 L8A18 L8A19 L8A20 L8A21 L8E01 L8E05 L8F01 L8F02 L8F03 L8F04 L8F05 L8F06 L8F07 L8F08 L8F09 L8F10 L8F11 L8F12 L8G01 L8G02 L8G05 L8G06 L8G10 L8G11 L8G12 L8G13 L8G14 L8G15 L8G16 L8G17 L8G18 L8G19 L8G30 L8G32 L8G33 L8K00 L8K01 L8K02 L8K03
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] LC8703 LC8704 LC8705 LC8706 LC8707 LC8708 LC8709 LC8710 LC8711 LC8712 LC8713 LC8714 LC8715 LC8716 LC8717 LC8718 LC8719 LC8720 LC8721 LC8722 LC8723 LC8724 LC8725 T2001 T2002 T2003 T2004 T2101 T2102 T2103 T2104 409P944010 409P944010 409P944010
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # R7A89 R9A01 R9A02 R9A03 R9A05 R9A06 R9A09 R9A11 R9A13 R9A14 R9A16 R9A17 R9A19 R9A20 R9A21 R9A22 R9A25 R9A29 R9A30 R9A36 R9A52 R9A54 R9A55 R9A56 R9A64 R9A65 R9A77 R9A78 R9A91 R9C00 R9C10 R9C20 R9C71 R9D00 R9F16 Part # 265P809010 109P179010 109P179010 109C010010 109C010010 109C01001
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] C7E01 C7K01 C7K21 C7K23 C7K28 C8281 C9A00 C9A01 C9A02 C9A03 C9A04 C9A05 C9A06 C9A08 C9A09 C9A10 C9A11 C9A13 C9A14 C9A15 C9A16 C9A19 C9A21 C9A25 C9A26 C9A27 C9A28 C9A30 C9A31 C9A32 C9A33 C9A35 C9A36 C9A37 C9A38 C9A39 C9A40 C9A43 C9A45 C9A46 C9A
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # 246C524020 299P254020 AG9D00 F9A01 F9A02 F9A03 F9A04 F9A05 F9A06 F9A07 F9A08 F9A09 F9A10 F9D00 F9G01 F9G21 F9G41 SF1501 299P278020 299P288010 299P298010 299P299010 299P300010 299P285020 299P290010 305P703020 305P705010 411D024010 411D044020 411D063010 411P026010 411P02602
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # X8K45 285P391030 Z7K01 938P005010 934C150005 934C150006 934C151005 934C151006 934C152005 934C152006 Part Name & Description Ref # PRINTED CIRCUIT BOARDS abcdg efhi abcdg efhi ac bdg eh fi abcdg efhi abcdg efhi abcdegh fi abcdg efhi abcd efghi efhi efghi abcd ac bdg fi
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] SCREEN ASSEMBLY PARTS WD-52627& WD-52628 Screen Parts (Figure 1) (1) (2) (3) (4) (5) (6) (7) (8) (9) (11) (12) (13) 491P177040 491P178040 623D253020 701B525030 701B534010 761A232050 761A238050 768C082010 768C082020 623D209010 704B238010 704B2
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) Part # Part Name & Description [#] Ref # Part # Part Name & Description WD-62827 Screen Parts (Figure 2) WD-62927 Screen Parts (Figure 2) 491P177030 491P178030 701B519010 701B520010 701B520020 701B532010 768C083010 768C08
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 [#] Model Legend: (a) WD-52627, (b) WD-52628, (c) WD-62627, (d) WD-62628, (e) WD-62827, (f) WD-62927, (g) WD-73727, (h) WD-73827, (i) WD-73927 Ref # Part # Part Name & Description [#] Ref # 491P175050 491P176050 595C114010 711C061010 711C062010 711C063020 711C065020 768C084030 768C084040 768C087030 768C087040 LENS-FRESNEL SCREEN-LENTICULAR PLATE-SCREEN FRAME-SCREEN-T FRAME-SCREEN-B FRAME-SCREEN-S COVER-FRAME-TOP CAP-CORNE
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Page 70
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Main Power Supply Page 71
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Lamp Ballast DC Supply Fans Power Supply Page 72
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Light Engine Power Supply HDD Power Supply & Fan Control (V30+ and V31 Only) Page 73
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Analog Video Signal Path Page 74
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Digital Video Signal Path Page 75
HDD Record Signal Path (V30+ and V31 Only) MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Page 76
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Sound Signal Path Page 77
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Command Input Circuitry Serial Control Lines Page 78
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Lamp Control Circuitry Page 79
MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927 Lamp, Engine & Fan Protect Circuitry TV Guide On® Screen Block Diagram Page 80
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 17 CE1 DM FAN * NOTES 1.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (TO LAMP BALLAST) PL 3 1 5 340V A 6 5 CD SI V+ IN+ 12V 5V 3.3V PON-SHORT 7 D9A18 1S2076A/1S2471OM R9A16 CT GND L9A37 GSRH127-221M C9A03 1000U 200V D9A45 1S2076A/ 1S2471OM L9A38 22MH 9X9.5 C9A70 100U 25V C9A69 0.1 25V VCC SHORT DETECT. C9A81 470 25V/50V 5VSL C9A71 470U 16V D9A39 UDZS5.
2 3 4 5 6 CHASSIS 7 8 9 10 11 12 13 14 15 V28 ONLY A V28 390 360 180 220 220 0 0 0 0 0 TO SHUTTER CONTROL TO FMT - MICRO 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 16 17 18 V29 0 0 390 560 390 0 0 0 390 0 V30,V30+,31 0 0 390 560 390 0 0 0 390 0 19 20 KD 1 2 3 4 5 6 8 7 MOTOR-CLK 15 MOTOR-ST 14 SENS-CL SENS-OP 13 LCD/DLP-FAN-CONT PBS/LAMP-FAN-CONT BALLAST-FAN-CONT 12 3.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 TO FRONT PWB CE 11 9 10 8 7 6 5 4 3 2 1 IN3-L IN3-R IN3-C IN3-Y IN3-V S3 A D2J01 RSB6.8S L2J08 BLM21B272S L2J06 BLM21B272S L2J01 BLM21B272S D2J02 RSB6.8S R2L32 120K 1/16W C3J28 K-0.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A PWB-FRONT B PJ2J11 440C412-30 TO PWB-INTERFACE PWB-SWFILTER LE PWB-SWLAMP 1 S7F00 14 13 12 10 9 8 11 PWB-CONTROL 7 4 2 1 3 BOSS S11B-PASK-2 6 2 5 3 LED 4 MANRST GND 3.3VS 5 KSC1 6 KSC0 7 STATUS-G 8 STATUS-R GND 9 LAMP-G 10 LAMP-R 11 S7F01 SSCF210100 5 D7L20 RSB6.8S 4 3 2 SSCF210100 1 5 4 3 2 1 GND KSHS611BT S7L20 POWER/TIMER C D2J91 RSB6.8S D7L21 LN31GPH MAN-RESET D2J93 RSB6.