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Chapter 4 Block diagram

System Structure

Sensor

Board

FPC Board

PWxxx

Function Block

Mouse /

RS232

Function

Block

Fan Ctrl

Function Block

Converter

Video

Decoder

30 P

14 Pin

4 Pin

3 Pin

Color Wheel

PFC BD

AC Inlet

Ballast

14 Pin

KEYPAD

LED

8 Pin

5 Pin

FAN1

FAN2

2 Pin

Auto-

keystone

Block

5 P
in

80 P

Sensor1

30 P

Blower

3 Pin

Sensor2

Thermal

Breaker

Sensor2

Goden
Finger

3-1 Pin

1 P

3-1 Pin

2 Pin

380V/

GND

380V/

GND

18VPFC

Door
Lock

80 P

3 Pin

Lamp

Control

System
Control

KeyPad & LED

Color Wheel

sensor

feedback

2 Pin

EMI

Filter

80 P

DDP1000 Block

Motor

Control

Block

15 pin

Sensor3

DC/DC Block

D_Sub

Out

Video

Connector

S-Video

Connector

Mini-

USB

connector

Audio

Out

Audio
Block

Lam

p Box

DMD

Heatsink

Содержание TDP-D1

Страница 1: ...SERVICE MANUAL FILE NO 330 200306 DLP DATA PROJECTOR TDP D1 TDP D2 TDP D1 TDP D2 ON ST AN DB Y INP UT ON LA MP TE MP FA N ME NU AU TO KE YS TO NE AU TO SE T VO L VO L ...

Страница 2: ...ck Diagram 37 Chapter 5 Trouble Shooting Guide 40 Chapter 6 Firmware upgrade 50 Chapter 7 Factory OSD 55 Chapter 8 Alignment Procedure 56 Chapter 9 Signal Table 61 Chapter 10 Spare Parts List 66 Chapter 11 RS232C Codes 72 Appendix A Engineering Specification 75 Appendix A Circuit Operation Theory 80 Appendix A DMD Imege Quality 105 1 ...

Страница 3: ...e AC voltage across the combina tion of 1500ohm resistor and 0 15 µF capacitor Reverse the AC plug at the AC outlet and repeat AC voltage mea surements for each exposed metallic part Voltage mea sured must not exceed 5 25V rms This corresponds to 3 5 mA AC Any value exceeding this limit consti tutes a potential shock hazard and must be corrected immediately PRODUCT SAFETY NOTICE Many electrical an...

Страница 4: ... harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this equipment not expressly approved by Toshiba or parties authorized by Toshiba could void the user s authority to operate the equipme...

Страница 5: ... the product and to protect it from overheating and these openings must not be blocked or covered The openings should never be blocked by placing the product on a bed sofa rug or other similar surface This product should not be placed in a built in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer s instructions have been adhered to IMPORTANT SAFETY ...

Страница 6: ...NSTRUCTIONS 16 Damage Requiring Service Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions a When the power supply cord or plug is damaged b If liquid has been spilled or objects have fallen into the product c If the product has been exposed to rain or water d If the product does not operate normally by following the operating...

Страница 7: ...s 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 Back fan Ballast Power supply Lamp blower Optical engine Main Connector ...

Страница 8: ...7 Lamp box Input module ...

Страница 9: ...Chapter 2 Assy and Disassy drawing 8 ...

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Страница 17: ...to cool before removing the lamp module The lamp module becomes very hot when the projector is in use DO NOT touch any part of the lamp module that is located in the lamp box Oils from your fingers will cause smudges and uneven heating of lamp surfaces resulting in decreased image quality and premature lamp failure If the lamp is ruptured or the lamp module is cracked or damaged be careful of quar...

Страница 18: ...l 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 Remove the 4 long screws and 1 short screw ...

Страница 19: ...8 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 ...

Страница 20: ...19 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 ...

Страница 21: ... 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 ...

Страница 22: ... 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 1 Remove the 2 screws 2 Place the cables out of the hooks ...

Страница 23: ...22 3 Remove 2 cables 4 Lift the rear bezel ...

Страница 24: ... 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 ...

Страница 25: ...24 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 ...

Страница 26: ...25 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 ...

Страница 27: ...26 9 Remove 4 screws 10 Saparate the Input board from the PC board interface ...

Страница 28: ...nterface 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 ...

Страница 29: ...28 2 Lift the upper power board 3 Remove 2 cables 4 Remove 4 screws for ballast ...

Страница 30: ... to the bottom case and converts the 100 240 VAC supply voltage to various low voltage DC levels required internally by the projector The power supply interfaces with the ballast to control lamp strike and operation and to detect the electrical condition of the safety interlock switch 1 Remove 3 screws 1 jack screw and 1 cable ...

Страница 31: ...onnector 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 1 Remove 3 screws for optical engine and 1 screw for cable ...

Страница 32: ...1 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 ...

Страница 33: ...32 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 ...

Страница 34: ...ides 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 1 Remove 1 screw 2 Pull the release latch of the foot adjust outward to disengage the connection between the foot adjust and the bottom case ...

Страница 35: ...1 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 ...

Страница 36: ...35 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 ...

Страница 37: ...l 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 A broken color wheel requires engine replacement 1 Remove 2 screws 2 Carefully pull and lift the color wheel module from the bottom case ...

Страница 38: ...ck 5 Pin 80 Pin Sensor1 30 Pin Blower 3 Pin Sensor2 Thermal Breaker Sensor2 Goden Finger 3 1 Pin 3 1 Pin 3 1 Pin 2 Pin 2 Pin 380V GND 380V GND 18VPFC Door Lock 80 Pin 3 Pin Lamp Control System Control KeyPad LED Color Wheel sensor feedback 2 Pin 2 Pin EMI Filter 80 Pin 80 Pin Bias Adjust Jumper DDP1000 Block Motor Control Block 15 pin 15 pin Sensor3 DC DCBlock IR D_Sub In D_Sub Out Video Connector...

Страница 39: ...s Digital Signal RGB888 24bits Digital Signal 8 Pin Control Port PC_RX PC_TX RS232 Driver Receiver Sp232E YCSignal To DMDBoard KEY0 7 LED0 3 To Keypad Board DSUB15 OUT DSUB15 IN Tripe Video Amp RGBAnalog Signal YPbPr Analog Signal MacroVision Protect Decoder Circuit Switch Ballast RX TX RX TX RX TX IRto USB Mouse USB Mouse output D D IR1 IR2 Audio Processor TDA8551 Stereo R Stereo L Volume Mute ...

Страница 40: ... ADC Tacometer IN Fan Speed Regulator Open Closed Loop Fan Speed Control Circuit Transistor 2 FAN2 Blower G768B Tacometer IN Fan Speed Regulator Open Closed Loop Fan Speed Control Circuit G760A 2 wire I2C Bus STANDBY ADC ALERM 2 wire I2C Bus Transistor 1 G767 ADXL202 XOUT YOUT ...

Страница 41: ...40 Chapter 5 Trouble shooting guide ...

Страница 42: ...41 ...

Страница 43: ...ins connector 10 Check System Block No Signal 1 Check input cable 2 Check OSD source set up Auto Power Off 1 Check OSD lamp hours 2 Check OSD Auto Off setup value 3 Check lamp door 4 Check 12V fan 5 Check thermal status Video NG 1 Check Video cable Audio NG 1 Check System Block IR Remote Control NG 1 Check Remote module battery 2 Check Remote module 3 Check System Block Pixel Fail 1 Check DMD chip...

Страница 44: ...g No Yes 1 Check color wheel and Sensor board 2 Check DMD Block 3 Check System Block Image NG Screen dimmish Yes 1 Check DMD Block 2 Check color wheel and Sensor board No Image NG Freezing Yes 1 Check color wheel 2 Check Sensor board color index signal No Image NG Missing column bar No Yes 1 Check DMD holder Image NG Screen overlap Yes 1 Check System Block 2 Check DMD Block ...

Страница 45: ...ge New Light Pipe Change DMD Clean DMD Change DMD Baffle Change Projection Lens Rework FM Change New Lamp Change Lamp Check Engine component Power ON Blue Edge Pixel Failure Dust Light Leakage Focus Uniformity Brightess OK OK OK OK OK OK OK OK NG Re adjust Light Pipe NG NG NG NG NG NG NG NG Output as D1 Output as D2 1600 lumen 2000 lumen ...

Страница 46: ... if there were these two signal or not c Replace AD9888 a VPX3226 bad soldiering b PW164B bad soldiering c Main System bad connection a Replace SPE232E b PW164B a Check the mouse of PC is still working normally b Check the mouse driver of PC is PS2 compatible mouse c Replace IR Buffer Check 74244 Check 74373 a Check soldiering condition b PW164B bad soldiering Check the resisters between IR and PW...

Страница 47: ...46 4 Power Supply Trouble Shooting Guide PFC BOARD DX850 DC DC BOARD ...

Страница 48: ...47 5 DMD Block Trouble Shooting Guide ...

Страница 49: ...48 ...

Страница 50: ...49 ...

Страница 51: ...6 Firmware upgrade Step 1 Setup Flashloader in computer Step 2 a 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 ...

Страница 52: ...51 Step 4 Setting COM Port Baud Rate ...

Страница 53: ...52 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 ...

Страница 54: ...53 Step 6 Start download firmware ...

Страница 55: ...54 Step 7 Download finished Step 8 Turn off the power switch ...

Страница 56: ... Display the keystone calibration menu AUTO KEYSTONE RIGHT VOL Display the color wheel delay menu INPUT UP Display the fan control menu INPUT DOWN Display the white peak menu INPUT LEFT VOL Display the test pattern menu INPUT RIGHT VOL Display the video curtain spoke light menu ON STANDBY UP Display the burn in mode menu ON STANDBY DOWN Display the RGB gain DDP1000 menu ON STANDBY LEFT VOL Reserve...

Страница 57: ...m Ring than Focus Ring 2 Optical Alignment A Light pipe adjustment procedure i Equipment PC or Pattern Generator Chroma 2250 Screw Driver for M2 ii Procedures Project Full white pattern from PC or Chroma2250 pattern 41 or enter spoken light mode on screen Adjust the two light pips adjusting screws until Dark Edge disappear on all edges of screen Sequence of adjust is Left Right screw first then Up...

Страница 58: ...mum contrast and brightness Procedure Open Factory OSD and select color wheel delay item Leave the image pure red Put the detector on the screen that red image was projected Watch the oscilloscope and notice the square waveform Use the and key to increment or decrement the color wheel delay alue Do not adjust too much let the signal get ahead if it happens go back to step 5 and do it again Change ...

Страница 59: ...ommand to projector Command STX A S C ETX Check the contrast value after alignment Check the 32 levels of gray All steps must appear Send Save Factory Lamp Data Command Command STX F S V ETX D YpbPr Offset Alignment Procedure Equipment Pattern generator VG828 Procedure Check the input source YPbPr Change Timing and pattern of pattern generator Timing 480P Pattern Full Black Disable the Red Blue ch...

Страница 60: ...d the Keystone Calibration 2 Command to projector Command STX K C 2 ETX Check the keystone calibration 2 value after alignment After 5 10 minutes power on Set 0 angle of platform Send the Keystone Calibration 3 Command to projector Command STX K C 3 ETX Check the keystone calibration 3 value after alignment Send Save Factory Lamp Data Command Command STX F S V ETX F PC and Component signal test Eq...

Страница 61: ...e signal formation color and image quality G Menu Reset before output Equipment N A Procedure The reset menu is shown by pressing the MENU ENTER button during two seconds Select item by UP or DOWN button Fig 8 1 Reset all setting value of the user menu Fig 8 2 Execute menu of reset all Computer Y PB PR Video S video Horizontal reference value reset Reset all ...

Страница 62: ... 17 sm720X400_70 1 720 X 400_70 1 VGA Text 350 Lines 70Hz 720 350 70 090 31 470 28 323 900 18 108 54 449 38 2 59 P N 17 sm720X400_70 1 720 X 400_70 1 VGA Text 400 Lines 70Hz 720 400 70 090 31 470 28 323 900 18 108 54 449 13 2 34 N P 17 sm720X400_70 1 720 X 400_70 1 ASUS 800x600 144Hz 800 600 143 961 94 007 102 279 1088 58 88 142 653 1 3 49 P P 18 sm800X600_144 800 X 600_144 VESA 640 x 350 85Hz 640...

Страница 63: ...76 48 96 208 843 4 3 36 P P 53 sm1024X800_85 1024 X 800_85 NEC 1120 x 750 40Hz I 1120 375 80 054 32 862 47 847 1456 38 112 186 410 5 0 5 3 32 N N 54 sm1120X750_40 1120 X 750_40 CPQ 1152 x 864 43Hz 1152 864 43 600 45 998 66 513 1446 48 116 130 1055 70 3 118 P P 55 sm1152X864_43 1152 X 864_43 DMT 1152 x 864 60Hz 1152 864 60 039 53 735 79 528 1480 52 128 148 895 1 3 27 P P 56 sm1152X864_60 1152 X 864...

Страница 64: ...P 94 sm1920X1080_75 1920 X 1080_75 1920 x 1080 85Hz 1920 1080 85 040 96 435 193 642 2008 8 44 36 1134 7 3 44 P P 95 sm1920X1080_85 1920 X 1080_85 DELL 1600 x 1200 52Hz 1600 1200 51 868 74 794 161 554 2160 64 192 304 1442 93 3 146 P P 96 sm1600X1200_52 1600 X 1200_52 VESA 1600 x 1200 60Hz 1600 1200 60 000 75 000 162 000 2160 64 192 304 1250 1 3 46 P P 97 sm1600X1200_60 UXGA_60 VESA 1600 x 1200 65Hz...

Страница 65: ... 220 750 5 5 20 C C 135 sm750P_60 720P 750P 60 DTV1250i 50Hz E 1920 576 50 000 31 250 72 000 2304 64 128 192 625 5 3 41 C C 136 sm1250I_50E 1152I 1250I 50 DTV1125i 60Hz J 1920 517 5 60 000 33 750 74 250 2200 44 88 148 562 5 5 5 35 C C 137 sm1125I_60J 1035I 1125I 60 DTV1125i 50Hz 1920 540 50 000 28 125 74 250 2640 484 88 148 562 5 2 25 5 15 25 C C 138 sm1125I_50 1080I 1125I 50 DTV1125i 60Hz 1920 54...

Страница 66: ...V Lines V Freq H Freq Pixel Clock Total F Porch Sync B Porch Total F Porch Sync B Porch H V No Mode Name OSD Name Format Active Video Frequency H Timing Pixels V Timing Lines Sync Firmware Definition Unsupported Signal 2 smUNSUPPORT UNSUPPORT SIGNAL Auto Detection 255 smAUTO 65 ...

Страница 67: ...ER 2 23530967 ASSY BOTTOM COVER 3 23530968 ASSY TOP COVER 4 23530969 ASSY FRONT COVER This is common for TDP D1 and TDP D2 4A 23587243 NAME PLATE TDP D1 Photo will be available soon 4B 23587244 NAME PLATE TDP D2 Photo will be available soon 5 23530970 ASSY LAMP COVER 6 23530971 CONNECTOR COVER 7 23587040 PC BOARD INTERFACE 66 ...

Страница 68: ...587041 PC BOARD INPUT 9 23587042 PC BOARD USB 10 23587043 FAN MOTOR 50 20 11 23587044 OPTICAL ENGINE 12 23587045 PC BOARD CHIP 13 23587046 ASSY HOUSING DMD 14 23587047 LENS 15 23587048 ASSY DMD CONTACT HOUSING ...

Страница 69: ...SSY COLOR WHEEL 18 23587051 PC BOARD SENSOR 19 23587052 COLOR WHEEL 20 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 ...

Страница 70: ... included 26 23587059 PC BOARD FAN This board is included in Loc 25 23587245 26A 23587246 EMI BOARD 27 23587061 OWNER S MANUAL 28 23587062 SHEET QUICK JAP 29 23587063 OWNDER S MANUAL CD ROM 30 23587064 POWER CORD W G 31 23587065 CABLE RGB D sub 15P 69 ...

Страница 71: ...RCA AUDIO 34 23587068 CABLE BLK AUDIO 35 23587069 CABLE USB 36 23587074 SHEET QUICK UK Reference to No 28 37 23587077 POWER CORD UK 38 23587078 POWER CORD US WO SH 39 23587079 POWER CORD CHINA 40 23589070 REMOCON HAND UNIT 41 23589071 BAG SOFT CASE ...

Страница 72: ...QUICK EU Reference to No 28 44 23589075 SHEET QUICK CH Reference to No 28 45 23589076 POWER CORD EUR 46 23717119 LONG SCREW 47 23747034 ASSY STAND OFF 48 23890017 LENS CAP 49 23918352 CARTON BOX 50 23929988 ASSY TUNNEL 51 23946538 PACKING FRONT 52 23946539 PACKING REAR ...

Страница 73: ...l Off Off User STX P N 0 ETX 5 ACK CR 0 3 Default Setting Menu No Signal Off 1 min User STX P N 1 ETX 5 ACK CR 1 3 Default Setting Menu No Signal Off 2 min User STX P N 2 ETX 5 ACK CR 2 3 Default Setting Menu No Signal Off 3 min User STX P N 3 ETX 5 ACK CR 3 3 Default Setting Menu No Signal Off 4 min User STX P N 4 ETX 5 ACK CR 4 3 Default Setting Menu No Signal Off 5 min User STX P N 5 ETX 5 ACK ...

Страница 74: ...0 3 ETX 9 ACK CR 0 3 Read G768B Register Acceptable Factory STX Q 0 4 ETX 7 ACK CR 4 Write G768B Register Acceptable Factory STX N 0 4 ETX 9 ACK CR 0 3 Read G760 Register Acceptable Factory STX Q 0 5 ETX 7 ACK CR 4 Write G760 Register Acceptable Factory STX N 0 5 ETX 9 ACK CR 0 3 Read G767A Register Acceptable Factory STX Q 0 6 ETX 7 ACK CR 4 Write G767A Register Acceptable Factory STX N 0 6 ETX 9...

Страница 75: ...Error Count The count of the device error This error will occur if devices are wrong ex Video decoder reset error Error Log 10 The log list of error The error log 1 is the newest Error Type Number for Error Log Lamp Error 1 Fan 1 Speed Error 2 Lamp Fan Fan 2 Speed Error 3 Ballast Fan Fan 3 Speed Error 4 Blower Fan Fan 1 Temp Error 5 DMD Temp Fan 2 Temp Error 6 Lamp Temp Fan 3 Temp Error 7 Fan Boar...

Страница 76: ...60 reference 1 2 2 Minimum 54 before Brightness up solution phase in 50 after Brightness up solution phase in 1 3 Contrast Ratio 1 3 1 ANSI Contrast 1 2 1 1 Typical 200 1 reference 1 3 1 2 Minimum 100 1 1 3 2 JBMA Contrast Spoke mode 1 3 1 1 Typical 800 1 reference 1 3 1 2 Minimum 700 1 1 4 Light Leakage 1 4 1 Light Leakage in Active Area A22 3 lux within 40 diagonal image size 1 4 2 Light Leakage...

Страница 77: ...0 49 3 33m 100 82 2 2 Zoom Ratio tolerance applied 6 00m max 180 148 2 3 Distortion 2 3 1 Keystone Distortion 1 0 2 3 2 Vertical TV Distortion 1 0 2 4 Projection Offset 132 5 2 5 Focus Range 1 5 6m 2 6 Customer Defined Focus A20 Refer to A20 2 7 Lateral Color A21 Refer to A21 2 8 DMD Image Quality See Appendix D 2 9 Shading at edge of image Dust and other image quality issue According to agreed li...

Страница 78: ... or touched for short periods only 35 C 60 C Metal Plastic 5 2 External surface or equipment which may be touched 45 C 70 C 5 3 Exhaust Air 70 C 6 0 Environmental TBD Adhere to Appendix B Operating 10 40 C without condensation 6 1 Temperature Storage 10 60 C without condensation Operating 10 90 RH without condensation 6 2 Humidity Storage 10 90 RH without condensation Typical Normal mode 37dBA at ...

Страница 79: ...is provided by Customer 11 1 DDC DDC 2B 12 0 Image Interface Adhere to Appendix E 2 12 1 Analog RGB Input 15 pin D Sub Female x 1 RGB Video amplitude 1 0 Vp p Impedance 75Ω HD VD CS TTL Level 12 2 Video Input RCA jack Yellow Video amplitude 1 0 Vp p Impedance 75Ω 12 3 S Video Input 4 pin Mini Din Female Y Luminance amplitude 1 0 Vp p Impedance 75Ω C Chroma amplitude 0 268 Vp p Impedance 75Ω 12 4 Y...

Страница 80: ... 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 350mVrms 10 KΩ or more 15 2 PC Audio Output 300mVrms 10 KΩ or more 15 3 Speaker 4Ω 3W x 1 16 0 Others For any unspecified problem Customer and BenQ shall discuss and or use limit sample to determine the specification if needed ...

Страница 81: ...power supply interference must be removed or reduced as much as possible Red green and blue analog data are typically received through a 15 pin DIN connector This is carried over from the original computer to display interface systems developed in the early 1970s While the system worked well then it was never intended for the signals on today s graphics cards that operate at 160MHz with 2 7mV per ...

Страница 82: ...reduces unwanted termination reflections at the frequencies of interest The actual termination resistor needs to have its ground return point as close to the 15 pin connector as possible After this initial termination th e circuit board appears as a high impedance subsystem with a large amount of stray capacitance This stray capacitance comes primarily from the ESD protection devices and the input...

Страница 83: ...choices Typically L1 and L2 are specified as 40 100Mhz and C1 as 12pF Sync on Green SOG Another carry over from the past is Sync on Green SOG In this situation an added input to the display processor is available This needs to be connected to the green channel of the analog RGB which adds capacitance to the green channel Doing so typically affects L2 or C1 shown in Figure 1 for the green channel o...

Страница 84: ...g subsystem These power supplies and their associated grounds also need to be isolated from anything analog Many display designers use separate linear regulators for analog subsystems These linear regulators can remove switching noise from the power planes In general using separate ground planes is not a proper way to isolate analog circuitry from the power supply or digital sections of a design I...

Страница 85: ...eo Interface This section provides design guidelines for the Video interface and describes Input Signals Power Clocks Output Signals Input Signals The AC coupled video interface inputs may or may not need diodes depending on the requirements of the video decoder used Keep these signals on the outside surfaces of board next to the ground plane as short as possible and away from other signals Power ...

Страница 86: ...s as directly as possible If the decoder supports 16 bit YUV use this mode instead of the 24 bit RGB The 16 bit YUV mode uses fewer signals and has the same signal quality Video Decoders have 2X or 1X output clocks If a 2X clock is used another signal DEN is required to indicate which phase of the 2X clock to use Some Video Decoders have built in image scaling capability To take advantage of this ...

Страница 87: ...tremely complex user interfaces or other custom software is used that requires more than the 32K of processor memory available on chip In these cases the SRAM can be connected to the ImageProcessor without external glue logic RAMs used with Pixelworks ImageProcessors should have an access time of less than 150 ns Refer to the ImageProcessor Evaluation Board schematics for details about how this pa...

Страница 88: ...uit The minimum pulse width value of the RESET input defined in the ImageP rocessor specification must be met In addition the ROM emulator needs to be able to drive the RESET pin of the ImageProcessor An external RESET signal may be 5V CMOS and must be buffered to 3V to interface to the ImageProcessor RESET pin The RESET and NMI inputs to the Pixelworks ImageProcessor are not 5V tolerant therefore...

Страница 89: ...neous Pins Graphics Port GPort Block diagrams showing the signal flow between the ImageProcessor Graphics Port GPort the ADC and TMDS Receiver are presented for the following combinations Integrated ADC PLL and SOG Separator Integrated ADC PLL plus Separate TMDS Receiver Integrated ADC PLL and SOG Separator Figure 3 shows an integrated ADC PLL and SOG Separator Figure 3 Integrated ADC PLL and SOG ...

Страница 90: ...so that the PLL can be initialized The Coast signal is sent to the PLL to tell it to free run and ignore edges on the reference input This is used to ignore false transitions on HSync during vertical blanking that are often present in composite sync inputs Video Port VPort Figure 5 illustrates a sample circuit for the Video Decoder interface to the Pixelworks ImageProcessor Figure 5 Sample VPort C...

Страница 91: ... ports are not 5V tolerant Care should be taken to protect these pins from 5V inputs GPIO outputs are 3 3V CMOS These pins have 4mA output drivers Therefore they are not recommended to be used to directly drive LEDs or other high current devices Chip Select I O Expansion and Other Decoded Chip Selects CS are available to allow interfacing to additional external devices on the ImageProcessor bus Yo...

Страница 92: ...he pull up resistance is very large approximately 10K the potential current injected into the ImageProcessor input is very small and will cause no damage Universal Asynchronous Receiver Transmitter UART The UART is typically used for serial communications with a PC for FLASH download and debugging Pull down RxD if no transceiver is mounted on the board The RxD input is not 5V tolerant Display Port...

Страница 93: ...splays directly to the ImageProcessor display port The display port has high current drivers to drive long traces or short cables Use series termination near the ImageProcessor for good EMI performance If long cabling is required buffer the DPort signals with a high drive buffer Fan Control Interface The Fan Control IC contains the precise digital thermometer fan controllers and a system reset cir...

Страница 94: ...is also programmed via SMBusTM The actual fan speed and fan status can be ead via the SMBusTM Short circuit protection is implemented to prevent damages to the fan and this IC itself The accepted frequency of fan rotation pulses is 100 1000Hz which corresponds to 3 000 to 30 000 rpm for a typical fan that produces two pulses per revolution The IC also turns on the fans by hardware watchdog system ...

Страница 95: ...ity through advances in DLP image processing As with prior DLP electronics solutions image data is 100 digital from the input port to the image projected on the display screen Digital input is accepted from the 24 bit RBG YUV image input port up to the native DMD resolution The DDP1000 processes the digital input and converts the data into a bitplane output format to drive the DMD image bus The DD...

Страница 96: ...gure 8 Single DDP1000 Architecture DMD Formatting Electronics Block Diagram Digital Component Interface Input Clock CLKIN The DDP1000 electronics requires a stable free running input pixel clock CLKIN for displaying data on the screen GY 7 0 BU 7 0 RV 7 0 HSYNCZ OLACT and ACTDATA signals are sampled using the rising edge of CLKIN and they must be synchronous with CLKIN If CLKIN drops out or is out...

Страница 97: ...etected and indicates the beginning of an image line HSYNCZ must be synchronous with the rising edge of CLKIN Active Data Indicator ACTDATA ACTDATA indicates when image data is valid on GY 7 0 BU 7 0 and RV 7 0 ACTDATA must be high for the same number of pixels for each line that contains active pixels ACTDATA must be high for contiguous pixels within a line ACTDATA does not have to be high for co...

Страница 98: ... up to 400KHz This interface is used to control and configure the DDP1000 electronics The DDP1000 electronics Flash memory can also be reprogrammed over the I2C interface For Interface definition see the I2C bus specification The software command interface is defined in the DDP1000 Software Interface Control Document USB Interface Definition The DDP1000 electronics supports an optional USB slave o...

Страница 99: ...ilizing a 60MHz DMD clock line spreading is required on the input interface to achieve the minimum load time at some pixel clock rates Direct RambusTM Memory The DDP1000 utilizes a high speed Direct RambusTM RDRAM memory To support the RDRAM a Direct RambusTM clock generator DRCG is utilized This RDRAM interface is a very high speed and care must be taken in PWB layout to ensure success While the ...

Страница 100: ...eed and the highest supply voltage Process variation of the motor parameters should also be considered In order for the motor control loop to work there must be adequate back EMF margin Process variation of the motor parameters should also be considered The Allegro utilizes a watchdog capacitor to set a blanking time after the outputs are commutated This blanking time is needed to ignore false zer...

Страница 101: ... useful for electronic alignment of the color wheel The delay at a color wheel rate of 120Hz is specified over the I2C command interface The DDP1000 electronics scales the delay based on the ratio of 120Hz divided by the actual wheel rate The delayed color wheel index is available on a test point Lamp Power Supply Control Signals The DDP1000 electronics can control DC Philips UHP and Osram VHP typ...

Страница 102: ...s This may cause the End Item Product to reset the DDP1000 electronics with signal RESETZ When RESETZ goes back high and PWRGOOD is high the DDP1000 electronics will default LAMPEN to high The LAMPEN signal can also be used to synchronize an AC lamp Once the lamp is lit and stable a lamp synchronization I2C command can be sent to the DDP1000 electronics The DDP1000 electronics will respond by outp...

Страница 103: ...ion 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 No DDP1000 electronics configuration should be attempted until LAMPLITZ is low and stable When the lamp is disabled the LAMPLITZ shall be driven high See Figure 11 for d...

Страница 104: ...uires that PWRGOOD be driven low in advance of the DC power supplies dropping out of the recommended operating limits This time is used to park the DMD RESETZ When RESETZ is low the DDP1000 electronics goes into a reset default state and the DMD is parked When RESETZ transitions from low to high the DDP1000 will begin initialization Control Interface at Power up At power up the DDP1000 electronics...

Страница 105: ...lity The DDP1000 provides two methods for setting the DMD bias bin The first method utilizes hardware jumpers See reference design schematics for implementation details The second method is to configure the bin over the I2C command interface The bias bin must be configured each time the DDP1000 electronics is powered on or reset See the DDP1000 electronics software ICD for programming information ...

Страница 106: ...n thesurrounding pixels 2 3 Bright pixel A single pixel or mirror that is stuck in the ON position and is visibly brighter than thesurrounding pixels 2 4 Unstable pixel A single pixel or mirror that does not operate in sequence with parameters loaded intomemory The unstable pixel appears to be flickering asynchronously with the image 2 5 Adjacent pixel Two or more stuck pixels sharing a common bor...

Страница 107: ...en is used to test for major dark blemishes Refer to Figure 1for configuration All areas of the screen are colored a Microsoft Paintbrush blue 60 green and red set at 0 blue set at 60 NOTE If linear degamma is not used then the Microsoft Paintbrush values must beadjusted to match the degamma table being used in order to generate an equivalent bluelevel on the test screen image 2 11 Two Zone Gray 1...

Страница 108: ...e shall be a minimum of 60 inches e The projection screen shall be 1X gain f The projected image shall be inspected from an 8 feet minimum viewing distance g The image shall be in focus during all Table 1 tests h Operator Vision Verification that projected images meet the specified acceptance criteria shall be performed by operators that a Have 20 20 or better natural or corrected vision as determ...

Страница 109: ...inor blemishes 6 No DMD window aperture shadowing on the Active Area 7 No unstable pixels in Active Area Notes Tests shall be performed in the sequence indicated in Table I 1 Projected blemish numbers include the count for the shadow of the artifact in addition to the artifact itself so that the count usually represents a single artifact on the window 2 No blemish shall be more than 5 inches long ...

Страница 110: ...109 Figure 1 Major Blemish Two Zone Screen Non Critical Zone Critical Zone center 25 ...

Страница 111: ...1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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