Toshiba TDP-D1 Service Manual
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Toshiba TDP-D1 Service Manual

Toshiba TDP-D1 Service Manual

Dlp data projector
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See also: Owner's Manual
FILE NO. 330-200306
SERVICE MANUAL
DLP DATA PROJECTOR
TDP-D1
TDP-D2
TDP-D1. TDP-D2

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Summary of Contents for Toshiba TDP-D1

  • Page 1 FILE NO. 330-200306 SERVICE MANUAL DLP DATA PROJECTOR TDP-D1 TDP-D2 TDP-D1. TDP-D2...

  • Page 2: Table Of Contents

    Index Precaution Chapter 1 Major Parts Location Chapter 2 Assy and Disassy Drawing Chapter 3 Parts Replacement Chapter 4 Block Diagram Chapter 5 Trouble Shooting Guide Chapter 6 Firmware upgrade Chapter 7 Factory OSD Chapter 8 Alignment Procedure Chapter 9 Signal Table Chapter 10 Spare Parts List...

  • Page 3: Safety Precaution

    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 Iine before any service is performed on the projector.

  • Page 4: Safety Precautions

    The exclamation point within an WARNING: Changes or modifications made to this equipment, not expressly approved by equilateral triangle is intended to Toshiba, or parties authorized by Toshiba, could void the user's authority to operate alert the user to the presence of the equipment.

  • Page 5: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS CAUTION: PLEASE READ AND OBSERVE 1. Read Owner's Manual 3. Source of Light ALLWARNINGS AND After unpacking this product, read the Do not look into the lens while the lamp INSTRUCTIONS GIVEN IN THIS owner's manual carefully, and follow all is on.
  • Page 6 IMPORTANT SAFETY INSTRUCTIONS Object and Liquid Entry 13. Stack Inhibited Accessories Never push objects of any kind into this Do not stack other equipment on this Do not place this product on an unstable product through openings as they may product or do not place this product on the cart, stand, tripod, bracket, or table.

  • Page 7: Major Parts Location

    Chapter 1 Major Part Locations The top illustration shows the parts from the front of the projector. The illustration on the next page shows the parts visible from the rear of the projector. To see exploded views of the case parts, major components and optical engine, Main/Connector Back fan...
  • Page 8 Input module Lamp box...

  • Page 9: Assy And Disassy Drawing

    Chapter 2 Assy and Disassy drawing...

  • Page 17: Parts Replacement

    Chapter 3 Parts replacement 3.1 Lamp module The lamp module is located at bottom of the projector. The lamp module behinds the lamp cover with 3 captive screws. After you replace the lamp module, you should reset the lamp hour counter. The switch interrupts power supply output to the projector if you remove the lamp cover.
  • Page 18 3. Grasp the handle on the lamp module and pull the module out of the lamp box. 3.2 Top Case The top case encloses the top half of the projector. It includes the keypad and speaker. When you just replace the top case only, you don’t remove the lamp module. 1.
  • Page 19 2. Carefully turn the unit over and lift the top case from the projector. 3. Place the unit upside-down on the bench and detach the keypad and speaker cable from theirs connector on the PC board interface.
  • Page 20 3.2.1 Keypad and Speaker The keypad and speaker fasten to the inside of the top case with 2 cables. 1. Remove the 6 screws. 2. Lift the keypad and speaker from the top case.
  • Page 21 3.3 Front bezel The front bezel covers the front of the projector and helps secure the top case to the bottom case. 1. Remove the 2 screws under the projector. 2. Remove the right and left screw of the front bezel. There is a metal upon each connector and you don’t need to remove them.
  • Page 22 3.4 Rear Bezel The rear bezel covers the rear of the projector and fits between the top case and the bottom case. It fastens to the 2 fans with 4 screws. You should remove 2 screws and 2 cables. WARNING Rear bezel provides the thermal solution with 2 fans. Dust within fans will reduce the effect on heating solution.
  • Page 23 3.Remove 2 cables. 4.Lift the rear bezel.
  • Page 24 3.5 Main/Connector Module The main/connector module is located beneath the top cover at right of the optical engine. It includes a connector cover, input board and the PC board interface. 1.Remove 3 cables. 2.Remove 3 screws.
  • Page 25 3.Lift the black metal stick from the PC board interface. 4.Lift the ZIP connector form PC board interface and DMD board. 5.Remove 1 screw.
  • Page 26 6.Lift the input rear cover. 7.Lift and pull whole main/connector module. 8. Remove the #4-40 jack screws from both sides of the connector.
  • Page 27 9.Remove 4 screws. 10.Saparate the Input board from the PC board interface.
  • Page 28 11.Thus you will get input board, PC board interface and connector cover. 3.6 Ballast and Power Supply The ballast is located on the side of the projector opposite the lens. The ballast receives power from the power supply, stepping it up to ignite the lamp module. 1.Remove 4 screws and 2 cables.
  • Page 29 2.Lift the upper power board. 3.Remove 2 cables. 4.Remove 4 screws for ballast.
  • Page 30 5.Lift the ballast. 3.6.1 Power Supply The power supply is located near the ballast at the front of the projector. It fastens to the bottom case and converts the 100-240 VAC supply voltage to various low voltage DC levels required internally by the projector.
  • Page 31 2.Lift the power supply board. 3.7 Optical Engine The optical engine is located beneath the main/connector board at the side of the projector opposite the ballast. It fastens to the bottom case and produces the projected image by directing focused light from the lamp module through the color wheel and onto the Digital Micromirror Device (DMD).
  • Page 32 3.8 EMI Board The EMI board fastens to the power supply under the optical engine. It drains electro-magnetic interference away from AC inlet. 1.Remove 2 screws, 2 jack screws and 1 cable. 2.Lift EMI board.
  • Page 33 3.9 Lamp Blower The lamp blower is fastens to lamp box on the bottom case. The blower directs cool air around the lamp. 1.Remove 2 screws. 2.Lift lamp blower.
  • Page 34 3.10 Foot Adjust The foot adjust is located in the bottom case. The foot adjust stick slides up or down through the bottom case to raise or lower the front of the projector when you press the actuator button on the side of the bottom case.
  • Page 35 3.11 Lamp Box The lamp box is fastens to AC inlet/thermal switch/power switch. It helps secure the lamp module to the bottom case. 1.There are 6 screws you need to remove. 2.Remove 1 screw in fornt of the lamp box.
  • Page 36 3. Remove 1 screw and pick up the portion of lamp box. 4. Remove 2 screws. 5. Remove 1 screw for lamp cover switch and remove 1 screw for AC inlet cable.
  • Page 37 3.12 Color Wheel Module The color wheel module is located on bottom case between lamp box and optical engine. CAUTION The color wheel is in the color wheel module. Take extreme care not to bump it with a tool or press against it because it is very delicate. Aviod any touching on color wheel and dust causes image quality decreasing.

  • Page 38: Block Diagram

    Chapter 4 Block diagram System Structure Sensor3 Sensor1 Blower Door FAN1 FAN2 Sensor2 Lock Heatsink Thermal Sensor Board Breaker Color Wheel 3 Pin Mini- Video Color Wheel connector Connector sensor S-Video feedback Audio Audio Connector 4 Pin 3 Pin 5 Pin 3 Pin 8 Pin 15 pin...
  • Page 39 Block Diagram YC Signal NTSC/PAL/SECAM Video Decoder VPX3226 CVBS Signal Ballast YUV422 16bits Digital Signal DSUB15 Tripe Video 8-Pin RS232 Driver- Control Port Switch Receiver Sp232E XGA FPD Control IC DSUB15 RGB Analog Signal 2 Phase 140MSPS Analog Image Processor MacroVision RBG888 48bits Interface for FPD...
  • Page 40 Fan Control Auto Keystone Transistor 1 Transistor 2 ALERM O pen/Closed Loop Fan-Speed FAN1 Speed 2-wire Control Regulator I2C Bus Circuit FAN2 Tacom eter STANDBY G768B Blower 2-wire Speed O pen/Closed I2C Bus Regulator Loop Fan-Speed Control Circuit Tacom eter STANDBY G760A 2-wire...

  • Page 41: Trouble Shooting Guide

    Chapter 5 Trouble shooting guide...
  • Page 43 Final Assembly Trouble Shooting Guide System Trouble Shooting Flow Char STEP: 1.Check power core Back-LIGHT OK? 2.Check power board and wire 1.Check lamp door. 2.Check thermal switch and wire 3.Check 12V Fan and wire 4.Check power board and wire 5.Check color wheel FPC Power ON OK? 6.Check screws on color wheel (LAMP ON?)
  • Page 44 1.Check DMD Block 2.Check color wheel and Sensor board Image NG? (Blank) 3.Check DMD conductive elastomers 4.Check Main and Translation boards 1.Check color wheel and Sensor board Image NG? 2.Check DMD Block (Screen flashing) 3.Check System Block 1.Check DMD Block Image NG? 2.Check color wheel and Sensor board (Screen dimmish)
  • Page 45 Engine Assembly Trouble Shooting Guide 1 K room stage Start Check Color Wheel connection Power ON Check FPC BD connection Check I/F Board Blue Edge Re-adjust Light Pipe Change New Light Pipe Change DMD Pixel Failure Clean DMD Dust Change DMD Baffle Light Leakage Change Projection Lens Focus...
  • Page 46 Main Block Trouble Shooting Guide a. PW164B bad soldiering b. Flash without softeare are inside System no work c. Reset IC function abnormal d. PW164B no work 1. Check 3.3V or 2.5V 2. check MCLK and DCLK No data signal output to DMD BD a.
  • Page 47 4. Power Supply Trouble Shooting Guide PFC BOARD DX850 DC-DC BOARD...
  • Page 48 5. DMD Block Trouble Shooting Guide...

  • Page 51: Firmware Upgrade

    Chapter 6 Firmware upgrade Step 1. Setup Flashloader in computer. Step 2. Connect download cable with computer and projector b. Connect power cord with projector and check Power switch is OFF. Step 3. Execute FLASH loder.exe...
  • Page 52 Step 4. Setting COM Port & Baud Rate...
  • Page 53 Step 5. a. Turn on the power switch of the projector, then the Program will target the Flash. b. HEX File Format choose Intel Extended c. File Name choose d. Operation choose Program...
  • Page 54 Step 6. Start download firmware...
  • Page 55 Step 7. Download finished. Step 8. Turn off the power switch.

  • Page 56: Factory Osd

    Chapter 7 Factory OSD Special Key for TOSHIBA DLP Projector TDP-D1 Rev. F 2003.1.25 The following keys are effective when inserting a power cord plug in a power socket. Press keys until the LED becomes standby mode. Key1 Key2 Key3...

  • Page 57: Alignment Procedure

    Chapter 8 Alignment Procedure 1. Optical Engine assembly procedures Basically the assembly of optical engine is exactly the same as SL700X series engines with following differences: Projector Lens assembly After finishing the assembly of DMD Housing, assembly the projection lens THAN assembly the Zoom Ring than Focus Ring.
  • Page 58 Electronic Alignment Procedures A. DMD Bias Voltage Alignment Equipment: None Procedure: Watch DMD chip Label (Example: 9477000 0234B) Switch the DIP switch on Chip board according to the character on the DMD chip Color Wheel Delay Alignment Equipment: Battery Biased Silicon PIN Detector Oscilloscope Probe The default values let optical engine to get maximum contrast and brightness.
  • Page 59 PC Offset/Gain Alignment Procedure Equipment: Pattern generator (Chroma 2250) Procedure: Check the input source PC Change Timing and pattern of pattern generator: Timing: 1024x768@60Hz (H: 48Khz, V: 60Hz) Pattern: Full Black Send the Auto Sub Brightness Command to projector Command: STX A S B ETX Check the brightness value after alignment Change Timing and pattern of pattern generator: Timing: 1024x768@60Hz (H: 48Khz, V: 60Hz)
  • Page 60 Auto Ketstone Alignment Procedure Equipment: Jig of ±3 Procedure: Set 0° angle of platform Put the projector on it (already power on) Send the Keystone Calibration 0 Command to projector Command: STX K C 0 ETX Check the keystone calibration 0 value after alignment 0°...
  • Page 61 To check each above timing phase, H and V position, frequency is correct or not. Change the input signal to input YpbPr Timing: 1125i Pattern: Color Bar Check the signal formation, color and image quality. Menu Reset before output Equipment: Procedure: The reset menu is shown by pressing the [MENU/ENTER] button during two seconds.
  • Page 62 Chapter 9 Signal table Supported Signals for TOSHIBA DLP Projector TDP-D1 Rev. C 2003.1.28 Active Video Frequency H Timing (Pixels) V Timing (Lines) Sync Firmware Definition Format H Pixels V Lines V Freq. H Freq. Pixel Clock Total F Porch...
  • Page 63 Supported Signals for TOSHIBA DLP Projector TDP-D1 Rev. C 2003.1.28 Active Video Frequency H Timing (Pixels) V Timing (Lines) Sync Firmware Definition Format H Pixels V Lines V Freq. H Freq. Pixel Clock Total F Porch Sync B Porch Total...
  • Page 64 Supported Signals for TOSHIBA DLP Projector TDP-D1 Rev. C 2003.1.28 Active Video Frequency H Timing (Pixels) V Timing (Lines) Sync Firmware Definition Format H Pixels V Lines V Freq. H Freq. Pixel Clock Total F Porch Sync B Porch Total...
  • Page 65 Supported Signals for TOSHIBA DLP Projector TDP-D1 Rev. C 2003.1.28 Active Video Frequency H Timing (Pixels) V Timing (Lines) Sync Firmware Definition Format H Pixels V Lines V Freq. H Freq. Pixel Clock Total F Porch Sync B Porch Total...
  • Page 66 Supported Signals for TOSHIBA DLP Projector TDP-D1 Rev. C 2003.1.28 Active Video Frequency H Timing (Pixels) V Timing (Lines) Sync Firmware Definition Format H Pixels V Lines V Freq. H Freq. Pixel Clock Total F Porch Sync B Porch Total...

  • Page 67: Spare Parts List

    ASSY FOOT ADJUSTER 23530967 ASSY BOTTOM COVER 23530968 ASSY TOP COVER 23530969 ASSY FRONT COVER (This is common for TDP-D1 and TDP-D2) 23587243 NAME PLATE, TDP-D1 Photo will be available soon 23587244 NAME PLATE, TDP-D2 Photo will be available soon...
  • Page 68 23587041 PC BOARD INPUT 23587042 PC BOARD USB 10 23587043 FAN MOTOR 50×20 23587044 OPTICAL ENGINE 23587045 PC BOARD CHIP 13 23587046 ASSY HOUSING DMD 14 23587047 LENS 15 23587048 ASSY DMD CONTACT HOUSING...
  • Page 69 16 23587049 IC DMD CHIP 17 23587050 ASSY COLOR WHEEL 23587051 PC BOARD SENSOR 19 23587052 COLOR WHEEL 23587053 ASSY AC INLET/THERMAL SW/POWER SW 21 23587054 PC BOARD KEYPAD 22 23587055 ASSY SPEAKER+WIRE 100MM 23 23587056 LAMP POWER EUC250 24 23587057 ASSY REAR COVER+FANx2...
  • Page 70 23587058 POWER MODULE 23587245 EMI board is not included. 23587059 PC BOARD FAN This board is included in Loc. 25 23587245 26A 23587246 EMI BOARD 23587061 OWNER’S MANUAL 23587062 SHEET QUICK (JAP) 23587063 OWNDER’S MANUAL CD-ROM 23587064 POWER CORD W/G 23587065 CABLE RGB D-sub 15P...
  • Page 71 32 23587066 CABLE RCA(Y/Y) 23587067 CABLE RCA (AUDIO) 34 23587068 CABLE BLK (AUDIO) 35 23587069 CABLE 36 23587074 SHEET QUICK (UK) Reference to No.28 37 23587077 POWER CORD 38 23587078 POWER CORD US/WO/SH 39 23587079 POWER CORD CHINA 23589070 REMOCON HAND UNIT 41 23589071 BAG, SOFT CASE...
  • Page 72 42 23589072 SHEET QUICK (US) Reference to No.28 43 23589073 SHEET QUICK (EU) Reference to No.28 44 23589075 SHEET QUICK (CH) Reference to No.28 45 23589076 POWER CORD EUR 23717119 LONG SCREW 47 23747034 ASSY STAND OFF 23890017 LENS CAP 49 23918352 CARTON BOX 50 23929988...
  • Page 73 Chapter 11 RS232 Codes control procedure RS232C Command List for TOSHIBA DLP Projector TDP-D1 Rev. K 2003.1.7 Command List Command Packet Reply Packet Function in Standby Byte Byte Same Function in Menu & Key Ascii Char Char Char Data1 Data2...
  • Page 74 RS232C Command List for TOSHIBA DLP Projector TDP-D1 Rev. K 2003.1.7 Command List Command Packet Reply Packet Function in Standby Byte Byte Same Function in Menu & Key Ascii Char Char Char Data1 Data2 Data3 Data4 Ascii Ascii Ascii Data 1...
  • Page 75 RS232C Command List for TOSHIBA DLP Projector TDP-D1 Rev. K 2003.1.7 Reply of Error List Command Ascii Ascii Data1 Data2 Data3 Data4 Data5 Data6 Data7 Data8 Data9 Data10 Data11 Data12 Data13 Data14 Data15 Data16 Data17 Data18 Data19 Fan 1 Fan 2...

  • Page 76: Engineering Specification

    Spoke mode 1.1.1 Typical TBD (Toshiba wish 2000) (reference) 1.1.2 Minimum 1750 Lumens (Toshiba wish 1750+1~3% for measuring tolerance) 1.1.3 Eco mode Minimum TBD Lumens (Toshiba agreed this specification for reference and can have a large margin for good yield rate.) (Reference)
  • Page 77 1.5.1.1 Color 5600 7600 11000 Temperature 1.5.1.2 Color Deviation -0.0050 0.010 0.0270 x (Toshiba CL-200) y (Toshiba CL-200) 1.5.4 Red (TBD) .640±.030 .340±.030 1.5.5 Green(TBD) .335±.035 .555±.040 1.5.6 Blue(TBD) .137±.030 .087±.030 1.6 Customer Defined Color Uniformity (A18) 1.6.1 White 0.020 1.6.2 Red...
  • Page 78 3.5 Lens Cover Detached Lens Cover 3.6 Feet Fast adjustable foot in front, Adjustable foot and Fixed foot in rear. Foot Tilt:0-6,right/left: 0-4. 3.7 Handle 4.0 Packaging Detail refer to C309 (Packing Description) 4.1 Outside Dimensions 460 x 455 x 292mm (L x W x H) (TBD, AT LEAST SMALLER THAN 4.1) 4.2 Weight 4.2 Kg (Including Accessories, Projector) (TBD, AT...
  • Page 79 BENQ ESD Specification 8.0 Reliability 8.1 General Failure Def. Adhere to Appendix B 8.2 MTBF 20000 hours except for DMD chip, Color wheel, Lamp and Fan 8.3 Lamp Lifetime (TBD) 1500 hours (50% brightness maintenance) 9.0 Power Requirements Adhere to Appendix F 9.1 Power Supply (Normal) VAC 100 –...
  • Page 80 Input) RS-232 Standard 13.3 USB Connector B type USB terminal for mouse port 14.0 User Interface Adhere to Appendix E.3 14.1 Operator Keypad 9 Keys: 14.2 Indicators 4 dual LEDs 14.3 Remote Control General Type Remote with Laser 15.0 Audio 15.1 PC Audio Input Φ3.5mm stereo mini jack 350mV...
  • Page 81 Appendix B Circuit operation Theroy Main Frame Introduction This introduction provides detailed design information to assist in rapid development of a board design and layout, and covers the following topics:   A nalog RGB Interface    V ideo Interface ...
  • Page 82 This section provides design guidelines for the RGB Analog interface, and describes:   I nput Signals    S ync on Green (SOG)    P ower    C locks and Phase Lock Loop (PLL) ...
  • Page 83 Figure 1 shows a generic approach to resolving input signal design considerations. Figure 1. Analog RGB Input Circuit Place L1 as close to the connector pin as possible to reduce reflections. The stray capacitance is not shown. R1 is the 75 ...
  • Page 84 Many ADCs support SOG separation internally. If an external sync separation circuit is required, a National LM1881 (or equivalent) circuit works well up to XGA resolutions. Use a high-speed comparator for higher resolutions. Power The type of analog circuitry used for these high-speed interfaces can be sensitive to power supply variations.
  • Page 85 Clocks and Phase Lock Loop (PLL) Consider a PLL as a servo loop, such a person controlling the speed of a car with the accelerator. As more people talk in the car (or other distractions that may occur) the more the person instinctively attempts to block them out.
  • Page 86 Clocks Carefully chose the crystal for the video decoder. Use the crystal specified on the decoder manufacturer’s data sheet. A crystal that operates at the correct frequency is critical for proper video decoding. Output Signals Use series terminating resistors on the clock, sync, and data outputs of the Video Decoder to greatly reduce EMI effects.
  • Page 87 Read-Only Memory (ROM) The ImageProcessor requires a ROM to hold firmware for the on-chip CPU. Typical ROM sizes are 4Mbits or 8Mbits.The ROM device can be Flash, OTP PROM, or Mask ROM. Flash devices allow in-system reprogramming.   C onnect the ROM address and data buses to the ImageProcessor ...
  • Page 88 RESET and Non-Maskable Interrupts (NMI) Drive the RESET pin active during power up and hold it active until after the MCLK input starts toggling. This can be accomplished by using either an RC circuit, a TLC7733 Reset IC, or the equivalent.
  • Page 89 ImageProcessor Interface This section provides design guidelines for the ImageProcessor interface, and describes:   G raphics Port (GPort)    V ideo Port (VPor    M icroprocessor    D isplay Port (DPort)    C locks ...
  • Page 90 In this figure, HSync and VSync are sent to the ImageProcessor. These signals must be buffered to 3.3V before goingto the ImageProcessor. The feedback signal (GFBK) is the HSync signal created by the PLL. After the PLL has locked on, GFBK is virtually identical to HSync, except for a phase delay.
  • Page 91 Microprocessor Items that support the Microprocessor include:   General Purpose I/O (GPIO)   D ecoded Chip Select (CS)    E xternal Interrupts    I nfrared (IR) Receivers    U niversal Asynchronous Receiver Transmitter (UART) ...
  • Page 92 External Interrupts External interrupt inputs on the ImageProcessor allow the processors to be interrupted by external devices. The polarity and mode of these interrupts are programmable. Refer to the ImageProcessor Theory of Operations. These inputs are not 5V tolerant, so 3.3V devices or buffers must be used.
  • Page 93 Clocks The ImageProcessor requires memory (MCLK) and display (DCLK) clocks. The MCLK runs the internal memory system and the on-chip CPU. The DCLK is used to generate the output display timing. These clocks are typically generated by an internal PLL-based clock generator circuit. An external crystal is required.
  • Page 94 The Fan control IC also contains a 2-channel fan speed controller. It connects directly to the fans and performs closed-loop control of the fan speed independently. The only external component required is a 10µF capacitor per channel. It determines the current fan speed based on the fan rotation pulses and an externally supplied 32.768KHz clock.
  • Page 95 DMD Frame Overview The DLPTM DDP1000 based component set provides a highly integrated, high performance DLP solution, which enables manufacturers to create small size, high brightness projectors. The component set, when implemented with the proposed reference design, provides all the electronics required to drive and control the DLPTM display sub system on about 10 to 12 in2 of PWB.
  • Page 96 sequential artifacts. The DDP1000 supports DC, Osram VHP and Philips UHP type lamp interfaces. The DDP1000 offers improved support for Philips UHP lamp drivers. The DDP1000 provides 2 programmable PWM outputs that can be used for fan control or other applications. The DDP1000 is configured over an industry standard I2C bus up to 400KHz.
  • Page 97 Digital Component Data - GY(7:0), BU(7:0), and RV(7:0) GY(7:0), BU(7:0), and RV(7:0) are digital component video busses. Inputs can be Green, Red and Blue (RGB) or Luminance and color difference signals (YUV). Vertical and Horizontal Sync - VSYNCZ, HSYNCZ VSYNCZ indicates the basic display frame reference signal. The falling edge of VSYNCZ is detected and indicates the beginning of an image frame.
  • Page 98 Sync Valid Indicator - SYNCVAL SYNCVAL indicates when the data and control signals of the digital component interface are valid and the signals correspond to the configuration loaded over the control interface. If SYNCVAL is low, the signals on the digital component interface are ignored and a Video Curtain is displayed. The color of the video curtain is programmable via the control interface.
  • Page 99 DMD Interface Considerations The DDP1000 electronics supports SVGA, XGA and SXGA resolution DDR type DMDs. All three DMDs can be driven with 1 DDP1000 ASIC. In addition, SXGA can be driven with 2 DDP1000 ASICs for higher performance applications. The DMD interface can be configured to derive its clock from the DDP1000 master clock (MOSC).
  • Page 100 Color Wheel Control Motor Drive The DDP1000 electronics supports driving three phase, 8 pole (preferred), 12 or 16 pole, Y configuration, brushless DC color wheel motors. The DDP1000 electronics uses a combination of back EMF from the motor and the CWINDEX to frequency and phase lock the color wheel revolution to a fixed factor of the VSYNCZ rate.
  • Page 101 Color Wheel Index - CWINDEX The DDP1000 electronics uses the CWINDEX to phase and frequency lock the color wheel to a multiple of the vertical sync (VSYNCZ). The DDP1000 electronics phases the display of the data on the DMD based on the CWINDEX signal. The CWINDEX indicates the beginning of the red light on the DMD device.
  • Page 102 Lamp Enable - LAMPEN The DDP1000 electronics provides a lamp enable (LAMPEN) signal to control the projector lamp and ballast. The LAMPEN is used for on/off control as well as synchronization of AC lamps. The state of LAMPEN after a reset is low. This is normally the lamp off state of the lamp ballast. Once PWRGOOD and RESETZ are high and the color wheel is spinning at speed, the DPP1000 electronics drives the LAMPEN high.
  • Page 103 Figure 9 Level Lamp Synchronization Mode Timing Figure 10 Rising Edge Lamp Synchronization Timing Lamp Lit - LAMPLITZ The LAMPLITZ signal shall be asserted to the DDP1000 electronics after successful ignition of the projector lamp. The transition of LAMPLITZ from high to low is used to reset the DDP1000 electronics, so the LAMPLITZ signal must transition from high to low after the lamp ignition EMI pulse is over to guarantee operation is not affected by the ignition EMI.
  • Page 104 Figure 11 Lamp Power Supply Interface Timing Power and Initialization Requirements Power Good - PWRGOOD DC supply voltages may be applied in any order at power-up and removed in any order at power down. The PWRGOOD signal shall be driven high to the DDP1000 electronics when all the input DC supply voltages are within the recommended operating limits.
  • Page 105 Figure 12 Control Interface at Power-up DMD Bias Bin Each DMD is tested at TI and assigned a bias voltage bin. The bin must be properly set in the driving electronics to ensure DMD device reliability. The DDP1000 provides two methods for setting the DMD bias bin.
  • Page 106 Appendix C DMD Image Quality This document is an excerpt from TI’s document 2501907 1. SCOPE This document specifies the image quality requirements applicable to the DLPTM XGA ComponentSet. The Component Set provides the DLPTM XGA Projector (herein referred to as the Projector),with digital imaging functionality based on Digital Micromirror Device (DMD) technology..
  • Page 107 2.9 Border Artifacts All variations of these artifacts are acceptable under this image quality specification.Border artifacts are a general category of image artifacts that may show up on screen inthe area outside of the active array. Border artifacts include: Exposed Bond Wires,Exposed Metal 2, and Reflective Edge.
  • Page 108 1. ACCEPTANCE REQUIREMENTS 3.11 Conditions of Acceptance All DMD image quality defects must be determined under the following projected image test conditions: a. Projector degamma shall be linear. b. Projector error diffusion shall be “off.” c. Projector brightness and contrast settings shall be set to nominal. d.
  • Page 109 3.2 Test Sequence Tests shall be run in the sequence listed in Table 1. TABLE 1. Image Quality Specification SEQ # TEST SCREEN ACCEPTANCE CRITERIA Major Dark Two Zone Blue No blemish will be darker than Microsoft Blemish Blue 60 in the Critical Zone 2 blemishes in the Non-Critical Zone No blemish will be >...
  • Page 110 Figure 1. Major Blemish Two Zone Screen Non Critical Zone Critical Zone center 25%...
  • Page 111 1-1, SHIBAURA 1- CHOME, MINATO - KU, TOKYO 105 - 8001, JAPAN...

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