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Toshiba P500DL Service Manual
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Toshiba P500DL Service Manual

Toshiba P500DL Service Manual

Video wall projection unit
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SERVICE MANUAL
VIDEO WALL PROJECTION UNIT
P500DL
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Summary of Contents for Toshiba P500DL

  • Page 1 SERVICE MANUAL VIDEO WALL PROJECTION UNIT P500DL...
  • Page 2 SAFETY PRECAUTION WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions on this projector. The following are the necessary precautions to be observed before servicing this chassis. 1. An isolation Transformer should be connected in the power line between the projector and the AC line before any service is performed on the projector.

  • Page 3: Table Of Contents

    4. POWER SWITCH AND POWER INDICATOR 5. SPECIFICATIONS APPENDIX 6. ACCEPTABLE SIGNAL TYPE 1. P500DL control board LED status 7. ACCEPTABLE RGB INPUT SIGNAL TIMING 2. Control via RS-232C -Command Protocol List 8. CONNECTION AT A MULTI-PROJECTION SYSTEM 3. DMD Driver board debug 4.

  • Page 4: Safety Precautions For User

    When installing or move the equipment: WARNING Installation or transportation of this equipment shall be entrusted to vendors qualified by " Toshiba Lightning and Equipment Technology ". Installation and transportation by parties other than qualified vendors may result in injury or damage of the equipment.
  • Page 5 SAFETY PRECAUTIONS FOR USER For use of the equipment WARNING Do not remove the rear cover, cabinet or the cover. There are high-voltage parts in the unit. Touching components inside may result in electric shocks. Do not repair or reconstruct the equipment by the user. Never attempt to do so, otherwise fire disaster or electric shocks may result.
  • Page 6 SAFETY PRECAUTIONS FOR USER For servicing, maintenance and inspection WARNING If dust and dirt attached on the blades or the blade clamping face of the power plug, clean the dust and dirt from the plug. Otherwise, fire may occur due to lowering of insulation of the power plug. CAUTION Make a maintenance contract with the dealer and entrust the dealer with periodical inspection and adjustment.
  • Page 7 SAFETY PRECAUTIONS FOR USER Make sure to provide ground line from the ground terminal of the power plug. Otherwise, electric shocks may result. Do not connect many loads on a single outlet. It may cause fire or electric shocks due to overload. Do not put things on the equipment.

  • Page 8: Precautions For Use And Maintenance

    PRECAUTIONS FOR USE AND MAINTENANCE Request to User Screen protector Screen protectors are provided to protect the screen from scratching and separation during transportation. screen protector Please remove screen protectors before using the projection unit and attach them when storing or transporting the projection unit. Precautions on Use Connection of a grounded cable Ground the projection unit in order to prevent electric shock with 3-core power cable.

  • Page 9: General Descriptions

    GENERAL DESCRIPTIONS FEATURES Digital Light Processing (DLP ) by Texas Instruments P500DL is a projection unit using the Texas Instruments’ Digital Mirror Device (DMD) optical element. The DLP , Digital Light Processing engine is constructed with the DMD chip, with XGA resolution.

  • Page 10: Dimensions

    DIMENSIONS Unit: mm (inch) [FRONT] [REAR] 1016 (40.0) 0.5 (0.02) 0.5 (0.02) POWER O FF 550 (21.7) 550 (21.7) [SIDE] [TOP]...

  • Page 11: 3 Rgb-2 Input

    FUNCTION OF I/O PANEL DIGITAL SIGNAL LINK RGB 2 RGB INPUT RGB 1 POWER LAMP REMOTE CONTROL RS-232C VIDEO (10) (11) No. Name Function Remarks 1 Digital Signal Link terminal Cube signal transfer OUT: 24-pin DVI-D 2 Digital Signal Link terminal Cube signal transfer IN: 24-pin DVI-D 3 RGB-2 input RGB Signal Input - 2...

  • Page 12: Power Panel

    FUNCTION OF POWER PANEL REAR OF CABINET INSIDE OF CABINET AC INLET 15A 125V/250V AC POWER AC OUTLET AC100V-240V 50/60Hz UNSWITCHED MAX 10A No. Name Function Remark 1 Power Switch Turn ON and OFF main power ON/OFF 2 AC Inlet AC 100-240V, 50/60Hz input 3P plug 3 AC Outlet...

  • Page 13: Specifications

    SPECIFICATIONS Model name P500DL Type 50-inch rear projection unit Acceptable signals Refer to page 13 and page 14. Image device 1 chip XGA Digital Mirror Device Light source 120W UHP lamp Resolution 1024 x 768 dot (Include part hidden with screen frame)

  • Page 14: Input

    ACCEPTABLE SIGNAL TYPE The following are acceptable input signal types. Projection unit automatically distinguishes mode according to frequency of input signal. All the signals accepted are displayed on screen with 1024x768 dot by internal resolution converter. The Digital Signal Link function may not support NTSC/PAL/SECAM signal supplied from RGB-1 and RGB-2 input terminal.

  • Page 15: Acceptable Rgb Input Signal Timing

    ACCEPTABLE RGB INPUT SIGNAL TIMING Following are acceptable RGB input signal timings which have been tested by Toshiba. These are timings checked on the RGB input terminals of projection unit. If signal supplied is not exactly the same as one of the followings but is simile to one, it may be accepted by adjustment of projection unit.

  • Page 16: Connection At A Multi-Projection System

    CONNECTION AT A MULTI PROJECTION SYSTEM Following is example of connection for a multi-projection system using four projection units. In this example, signal sources are supplied into the Unit-1 and a signal selected by the Unit-1 is supplied from Unit-1 to the Unit-2 through Unit-4 with the Digital Signal Link. The optional wired remote controller is connected to Unit-1 and all Units are controlled by the System Bus Link.

  • Page 17: Disassembly

    DISASSEMBLY 1. HOW TO REPLACE THE LAMP 1) turn off the power switch and disconnect AC cord. 2) Open lamp door. (1) Remove 2 screws. (2) Open Lamp door. Be careful, lamp door switch is located at door. 3) Remove Old lamp (1) Rotate Lock lever down as picture shows.
  • Page 18 DIASSEMBLY 4) Attach new lamp (1) Place the lamp housing to the guide rail and insert the lamp. Check if the power supply connector is securely inserted. (2) Lock the lamp housing rotating Lock lever. 5) Attach lamp door. 6) Turn ON the power switch, connect PC with software, Cube commander, or remote control , then enter to the ADJUST mode SPECIAL mode STD thus the lamp timer is reset.

  • Page 19: Location Of Key Components And Function Module

    DIASSEMBLY LOCATION OF KEY COMPONENTS AND FUNCTION MODULE DLP engine (1) Projection Lens (2) DMD Drive Board (3) Lamp Unit (4) Input Connector (5) Exhaust Fan POWER SUPPLY MODULE BALLAST MODULE CONTROL MODULE Engine Mount (Adjustment Table) (A) Left to Right position adjustment (B) Horizontal Tilt, Up/Down adjustment (C) Left/Right trapezoid adjustment (D) Image Size adjustment...

  • Page 20: Exploded View Of The Projection Block

    DIASSEMBLY 3. EXPLODED VIEW OF THE PROJECTION BLOCK CAUTION Be careful to prevent the ESD (Electro Static Discharge) before touching the DLP Engine. If ESD happened, important key components including DMD device may easily damaged. This electro-static destruction will not be covered by Texas Instruments guarantee. For ESD prevention, use conductive wrist strap and connect the wire to the metal frame of the projection engine.
  • Page 21 DIASSEMBLY 5-1. How to remove the DLP Engine 1) Remove 96-pin connector from the DLP engine. 2) Remove clock connector from the engine. 3) Remove ballast connector from engine. 4) Remove 2 screws of lamp power connector from engine. 5) Remove 5 screws which are used to tighten engine block and remove engine. 5-2.

  • Page 22: Exploded View Of The Screen Block And Cabinet

    DIASSEMBLY EXPLODED VIEW OF THE SCREEN BLOCK AND CABINET How to remove the screen block 1) Rotate two screen locks and unlock the screen. 2) Pull up the Tab at both sides as figure shows. 3) Pull the screen block, holding Pull Tabs, so that screen frame can be removed.

  • Page 23: Wiring

    DIASSEMBLY WIRING Air intake Fan Door Switch DLP engine BALLAST Power Switch Box...

  • Page 24: Adjustment

    ADJUSTMENT 1. DLP Engine adjustment When DLP Engine is replaced, most of occasion, following adjustments are needed. New DLP engine may have some position displacement. The engine mount base has limited adjustment range so that optical engine need to be perfectly adjusted. 1) Adjust the engine mount to the proper positions By rotating the screw (A), obtain 10mm of clearance at (a), then by screw (B), the clearance (b) should be also 10mm.
  • Page 25 ADJUSTMENT ENGINE MOUNT ADJUSTMENT 1) Use internal test signal, refer to page 28, TEST.P #02, thus full frame image appears on the screen 2) Left to right Trapezoid adjustment can be performed by rotating (C) nut. By doing this Adjustment, horizontal position will move but disregard its movement/position. Obtain parallel image at top and bottom.
  • Page 26 ADJUSTMENT 5) Vertical position adjustment Both screws (A) and (B) need to adjust the same rotation to the same direction so that vertical position can be changed. 6) Horizontal position adjustment Loosen screw (E). Adjust screw (D) so that horizontal image position can be adjusted. Tighten screw (E) thus the adjustment base will not move.

  • Page 27: Electronics Adjustment Or Setting

    ADJUSTMENT 3. Electronics Adjustment or Setting Selection or adjustment can be performed using optional Remote Control, model CT-90000 or no obligation, user-risk freeware, 'Cube Commander'. Remote control CT-9956 (for CRT cubes) can also be used even though the keys are labelled differently - please refer to the diagram below.

  • Page 28: Adjust Mode

    ADJUSTMENT 3-2. Adjust Mode Press ADJUST to enter Adjust Mode. To exit Adjust Mode press ADJUST twice (one press will request confirmation that you wish to exit Adjust Mode). 3-3. Saving adjustments Pressing WRITING will exit Adjust Mode and save any adjustments made to non-volatile memory.

  • Page 29: Clock Frequency Adjustment And Phase Adjustment

    ADJUSTMENT 3-8. Clock frequency adjustment and phase adjustment Supply fine pitch signal (such as Windows shut-down screen) and adjust CLOCK and PHASE to eliminate moiré and jitter. 3-9. Image position adjustment Initially image position should be adjusted using the mechanical adjustments so that all unmagnified images appear at the same position.

  • Page 30: Multiple Screen Wall System (Example)

    ADJUSTMENT 4. Multiple Screen Wall system (example) Digital Signal Link Unit-3 Unit-4 System Bus Link Signal source Unit-2 Unit-1 Remote controller 5. ID Assignment (example) I.D.s should be assigned before connecting the RS232C control cables and I.D.s must be cleared before they can be re-assigned.

  • Page 31: Rgb/Control Pcb

    Electronic Circuit Explanation 1. RGB/Control PCB Input signals RGB1 and RGB2 are switched by analogue RGB switch IC, ADG774. VIDEO input is decoded by VPC3230D, auto-switching between PAL and NTSC, the output is 16 bit 4:2:2 YUV. DIGITAL signal is supplied to SII151, single link DVI receiver. Analogue signals are then converted to digital by A-D converter is AD9884.

  • Page 32: Electric Circuit Explanation

    ELECTRIC CIRCUIT EXPLANATION 2. DMD Driver PCB The processed digital signal is sent from the RGB/Control PCB to the DMD Driver PCB via the 96-pin digital signal cable. The TI driver IC controls to signal supplied to the DMD through frame memory buffers. 3.
  • Page 33 Appendix Appendix- - - - 1 1 1 1 Appendix Appendix P500DL control board LED s P500DL control board LED s P500DL control board LED s P500DL control board LED status tatus tatus tatus 12-11-2001 Ver. 0.9 POWER LAMP Blink time...

  • Page 34: Input

    Appendix Appendix- - - - 2 2 2 2 Appendix Appendix Control via RS-232C – Command Protocol list Date : 11/29/’01 ( pe64 ) Table –1 RS-232C pin-connection configuration Pin No Signal name Signal items I/O (in projector) Not used Reception data Output Transmission data...
  • Page 35 Table : 3 ADJUST MODE (Command to be used in ADJUST MODE) Item Contents Key(CMD**) CONT. Selects contrast adjustment ( ADC RGB gains ) BRIGHT Selects brightness adjustment ( ADC RGB offset) COLOR Selects color adjustment ( Video decoder ) TINT Selects tint adjustment ( Video decoder ) SHARP...
  • Page 36 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 Input 8 Input 9 Table 4 : SERVICE MODE (Command to be in SERVICE MODE ) Item Contents Key(CMD**) Switches OSD mute on or off Switches interpolation filter (A, B, C, D, E ) WRITE Memories adjusted data CALL...
  • Page 37 Table 6 : ID MODE (Command to be used in ID MODE ) Item Contents Key(CMD**) ID.CLR Clearing ID ID.SET Setting ID ID.ALL Input * Input 0 Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 Input 8 Input 9 Input A...

  • Page 38: Dmd Driver Board Debug

    Appendix Appendix- - - - 3 3 3 3 Appendix Appendix DMD DRIVER DMD DRIVER BOARD DEBUG BOARD DEBUG DMD DRIVER DMD DRIVER BOARD DEBUG BOARD DEBUG 1. Check power voltage (1)Check U93 PIN2=3.3V (2)Check U94 PIN3=+5V (3)Check CN51 PIN23,24,47,48=12V (4)Check Q102 PIN2,4=32V (5)Check C591 Negative=-32V 2.
  • Page 39 (3)Verify HSYNCZ,VSYNCZ,ACTDATA, SYNCVALID(HI Active) control signal 4. Verify U74A PIN1 Running at 120HZ. If no color wheel spinning, check U71 data transfer on the following line MTRDATA,MTRCLK,MTRSELZ. 5. Verify motor spinning line from micro-controller U71 (PIN51) to FPGA(U76 PIN 126) is Hi. 6.
  • Page 40 DMD DRIVER BOARD Debugging Flow Diagram Apply Power to boards When DC supply voltages are in spec drive PWRGOOD High 1. Check motor cable interconnect After specified time 2. Verify RESETDMD and PWRGOOD are high driveRESETDMD 3. Check Supply Voltages High 4.
  • Page 41 Bad image-16 1. Check DMD elastomer interconnect pixel wide vertical 2. Check DMD data outputs from DPF2A ASIC(U77) column(s) 1. Check DMD elastomer interconnect Bad image- 2. Check outputs from DMDSR16C(U88) 3. Check input voltages to DMDSR16C Horizontal bands 4. Replace DMD or DMDSR16C if needed or lines 5.
  • Page 42 1) OLACT floating or tied high all the time Image shifted to left 1) Check DMD elastomer alignment Dim and/or inverse 2) Check DMD image 3) Check DMDSR16C 4) Check DMD drive voltages(VBIAS,VCC2,VRST)

  • Page 43: Parts List

    PARTS LIST Location No Description A101 CABINET, P500DL CABINET K A102 SCREEN KUMITATEHIN P500DL A104 SCRCREEN P500DL A021 ADJUSTER, TILT DAI A701 CARTON, CASE A702 PACKING, PACKIGN 1-SHIKI A703 HOGO SHEET 3000X800 34G7 A704 POLYETHILENE BUKURO G63 A710 DY PACKING CASE STOPPER...
  • Page 44 Location No Description...

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