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Toshiba TDP-P75, Service Manual

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Toshiba TDP-P75 Service Manual Download Page 48

Step

Tool

1

2

3

4

5

6

(1) screwdriver

Unplug the (A)wire and remove (B)black
mylar.

screwdriver

Unplug the keyboard wire, and take up
the upper case.

Pull back the rear case according to the
arrowhead direction.

Take up the rear case.

Figure

Explanation

Remove the front case then loosen
the screws*5.

Loosen the screw and clip*3

Upcase  + Rear cover + Keypad BD 

(A)

(B)

47/60

08/19/05

Summary of Contents for TDP-P75

Page 1: ...SERVICE MANUAL FILE NO 330 200509 DLP PROJECTOR TDP P75 Document Created in Japan Jun 2005 ...

Page 2: ... recognizes environmental protection as a key management tasks and is doing its utmost to enhance and improve the quality and scope of its environmental activities In line with this Toshiba proactively promotes Green Procurement and seeks to purchase and use products parts and materials that have low environmental impacts Green procurement of parts is not only confined to manufacture The same gree...

Page 3: ...ve operation of lamps beyond the rated life could cause them to explode on rare occasions 3 Never replace the lamp assembly or any electronic components unless the projector is unplugged 4 To reduce the risk of electric shock do not disassemble this appliance Take it to a qualified technician when service or repair is required Incorrect re assembly can cause electric shock when the appliance is su...

Page 4: ... hot 2 Never touch the lamp bulb with a finger or anything else Never drop it or give it a shock They may cause bursting of the bulb 3 This projector is provided with a high voltage circuit for the lamp Do not touch the electric parts of power unit when turn on the projector 4 Do not touch the exhaust fan during operation 3 60 08 19 05 ...

Page 5: ...kage out of Active Area 2 lux when active area is 60 diagonal wide 1 5 Color X Y 1 5 1 White 299 025 325 030 1 5 2 Red 632 035 351 035 1 5 3 Green 316 040 570 030 1 5 4 Blue 143 015 085 040 ΔX ΔY 1 6 1 White 030 030 1 6 2 Red 040 040 1 6 3 Green 030 030 1 6 4 Blue 040 040 2 0 Image Quality 2 1 Throw Ratio 60 5 Diagonal at 2m Wide 2 2 Zoom Ratio tolerance applied 1 2 1 2 3 Distortion 2 3 1 Keystone...

Page 6: ...l Specification Maximum temperature 0 35 C Metal Plastic 5 1 Handles knobs grips etc and surface Held or touched for short periods only 60 C 85 C Bottom surface 55 C 25 C 70 C 25 C Metal Plastic 5 2 External surface or equipment which may be touched 70 C 95 C 5 3 Exhaust Air 95 6 0 Environmental Operating 0 35 C without condensation 6 1 Temperature Storage 20 60 C without condensation Operating 10...

Page 7: ... 9 8 EMI CISPR22 1997 Class B 9 9 Electro Static Discharge ESD Standard CE standard 4 KV contact 8KV air discharge 330Ω 150pf 9 10 Electrical Fast Transients EFT 1KV on input power lines Standard 1KV line to line 2KV line to ground on input power lines 9 11 Surge Toshiba Standard Target can be discussed 6KV line to line once for design goal 12KV line to line once for RD Design test stage Standard ...

Page 8: ... 75Ω 12 4 RGB output 15 pin D Sub Female x 1 12 0 13 1 IR Receiver IR Receiver x2 Front Rear 13 2 USB port for FW download 14 0 User Interface 14 1 Operator Keypad 8 Keys On Standby Input Auto Set Menu Left Vol Right Vol Up Down 14 2 Indicators 3 LEDs Power On Off Status Lamp Status Temperature Status 15 0 Audio 15 1 Audio Input Φ3 5mm stereo mini jack 350mVrms 10 KΩ or more 15 2 Audio Output Φ3 5...

Page 9: ...G GRD B GRD Pr GRD Y GRD Pb 9 NC 10 GRD 11 GRD 12 SDA 13 Horizontal Sync 14 Vertical Sync 15 SCL 1 Pin 1 Composite input 1 2 3 4 3 4 2 1 GRD GRD Luminance Chroma 8 Definition Composite video S Video input 5 GRD 6 7 3 Blue Signal 4 GRD Color Difference Signal Pr 1 Red Signal 2 Green Signal Color Difference Signal Pr Luminance Signal Y TDP P75 Service Manual 8 60 08 19 05 ...

Page 10: ...computer graphics the DDP2000 accepts up to SXGA 1400 x 1050 resolutions For motion video the DDP2000 accepts inputs for NTSC PAL SECAM 480p and both 720p and 1080i HD A single RDRAM is used with the DDP2000 for bit plane storage and as an extensive workspace for de interlacing noise reduction filters and AutoLock Unlike other front end ICs no additional external RAM is needed for supporting de in...

Page 11: ...TDP P75 Service Manual Figure 1 TI Reference Design 10 60 08 19 05 ...

Page 12: ...R Keystone Keypad Thermal Sensor Power Board 100 MSPS A D convert D Sub in D Sub out Triple vide o RGB analog signal YPbPr analog DDP200 0 DLP Imag e Processor RGB888 24bits NTSC PAL SECAM Video Decode YUV422 16bits Color Whee l Motor RAMBUS RDRAM DMD Power and Reset MBRS 16 M Flash Memory I MXD2020E F Chip Board IR Board Color wheel 1 4 1 5 11 60 08 19 05 ...

Page 13: ...ent which is less that that shown above Table 2 Voltage Regulators on the TI Reference Design Voltage Tolerance Current max 2 5 VDC 0 125 V 1 0 A 1 8 VDC 0 09 V 1 0 A 1 5 VDC 0 075 V 1 0 A 4 2 3 Power up Sequence All of the power supplies should be applied or removed simultaneously 4 2 4 Recommended Operation Conditions Signals which interface directly to the DDP2000 ASIC shall comply with the fol...

Page 14: ...terface DVI is an industry standard high speed data transfer interface based on Transition Minimized Differential Signaling T M D S The AD9882 contains a DVI 1 0 receiver which supports display resolutions up to SXGA 1280 x 1024 at 60 Hz The AD9882 includes support for High Bandwidth Digital Content Protection HDCP v 1 0 This feature allows for decryption of encoded data at the receiver and renewa...

Page 15: ...rces S video or 2 composite sources and 1 Y C source Composite video can be either NTSC PAL or SECAM The VPX3226E can decode and detect Macrovision 7 1 protected video The output of the decoder is programmable The TI reference design will use the YCrCb 4 2 2 with separate syncs option in an 8 bit format and both port A and port B active 4 4 3 Clock Signals The VPX3226E generates a clock signal fro...

Page 16: ... ASIC requires two signals and may also include a serial data link if the ballast is so equipped 4 6 2 Discrete signals The DDP2000 electronics can control a variety of DC and AC type lamp ballasts The DDP2000 electronics provides a lamp enable LAMPEN signal for lamp control and a lamp lit LAMPLITZ signal for status from the lamp ballast 4 6 3 Lamp Enable LAMPEN The DDP2000 electronics provides a ...

Page 17: ...s Guide for information on data types and structures 4 7 Peripherals 4 7 1 Peripherals Overview Peripherals can be connected to the DDP2000 ASIC via several communication paths Those include GPIO USB IR Sensor port Power Monitor UART JTAG Dedicated Test Points 4 7 2 General Purpose I O 24 GPIO signals are available to deliver or send data to or from the ARM 946 processor in order to monitor or con...

Page 18: ...r a normal power down event the system design must ensure that PWRGOOD or SYSRSTZ goes low prior to POSENSE low so that enough time exists for the mirror park sequence to complete successfully 4 7 6 UART There are two separate UART ports on the DDP2000 ASIC Each port contains the following signals UARTx_TXD Transmit data UARTx_RXD Receive Data UARTx_CTS Clear to Send UARTx_RTS Ready to Send Please...

Page 19: ...PIO line 4 7 12 Temperature Sensors Temperature sensors can be located in key locations inside the projector and provide feedback to the processor or the user The system designer can choose to connect these sensors via GPIO or I2C In the reference design TI has chosen a bimetal switch to indicate a lamp over temperature condition to the DDP2000 via a GPIO signal 4 7 13 Infra red Sensors The DDP200...

Page 20: ...TDP P75 Service Manual S Video CVBS I Audio Processor Audio O Audio I Tem p GMT G76 GMT G768 Tem p DMD DMD Power Fan Blower Fan BUFFER XTAL 32 768K 19 60 08 19 05 ...

Page 21: ...ss Enter the Factory mode DLP Î Color wheel delay menu and input 32 gray red pattern to projector To adjust color wheel delay value until all 32 gray red color is correct Simple method not accuracy When user leave the OSD menu the setting will be automatically saved into memory 5 3 PC Alignment Procedure OSD Default value Item Value Cal R Offset 63 Cal G Offset 63 Cal B Offset 63 Cal R Gain 127 Ca...

Page 22: ...s Figure1 A near white color 240 240 240 and a near black color 16 16 16 5 Light on projector 6 Set user OSD values to default 7 Enter factory mode 8 Set Factory values to default 9 Press Calibration RGB to let the black level to just distinguish and the light output of white level to just max 10 Check the 32 levels of gray All steps must appear Figure1 21 60 08 19 05 ...

Page 23: ...27 YPbPr R Offset 55 YPbPr B Offset 47 AutoKeystone Cal TiltRatio Flat 0 TiltRatio Flat 0 Procedure 1 Connect power YpbPr cable into projector 2 Timing 480i Pattern As Figure2 3 Light on projector 4 Adjust user OSD values to default 5 Enter factory mode 6 Adjust Factory values to default 7 Press Calibration YpbPr to calibrate the mid level offset Figure2 22 60 08 19 05 ...

Page 24: ...al B Offset 63 Cal R Gain 127 Cal G Gain 127 Cal B Gain 127 YpbPr R Offset 55 YpbPr B Offset 47 AutoKeystone Cal TiltRatio Flat 0 TiltRatio Flat 0 Procedure 1 Connect power into projector 2 Enter factory mode 3 Adjust Factory values to default 4 Press Auto Keystone Calibration to calibrate the keystone offset 23 60 08 19 05 ...

Page 25: ...olors better and project Sharper images The least preferable is a VCR If you must use a VCR make sure you use a commercially produces recoding not one recorded from a broadcast source The VCR must include an S Commercially produced video You ll need the video in DVD etc format Cables 1 RCA Pin jack cable for Composite video audio 2 S video cable 3 RGB cable that come with the projector 4 3 5mm min...

Page 26: ...ideo from video source Connect the yellow composite RCA video Connector to the projector Ensure that no other video source is connected to the projector Verify that the video automatically synchronizes Verify there is no distortion noise or other abnormalities S Video from video source Connect the S Video cable to the projector Disconnect the yellow composite RCA Video connector Verify that the vi...

Page 27: ... and that the lamp is within its service life Test Verification Focus SINGOWS2000 Cross Hatch image Verify that the image synchronizes properly through the computer 1 input Verify that image focuses through the full Zoom range Verify there are no problems Color Wheel Index Delay SINGOWS2000 Color bar image Verify that the image synchronizes properly through the computer 1 input Verify that the col...

Page 28: ...r 1 input Verify there are no problems Test Verification System Reset On the keypad press the Menu key Navigate through the basic menu to the default setting menu Select Reset all Verify that the image synchronizes after System reset Power Down After all tests are complete turn the power Off and disconnect all cables Attach the lens cap Verify unit is powered off before disconnecting cables 27 60 ...

Page 29: ...r Lamp can t be turn on or lamp shunt down Fan 1 Blower Fan error Blower fan stop Fan 2 Power Fan error Power fan stop Fan 3 DMD Fan error DMD fan stop G R R R R R R R R Power Temp Lamp Status Note Diode 1 open error Lamp Box sensor open Diode 2 open error Front sensor open Lamp Box sensor over temperature Lamp Box sensor over 110 Front sensor over temperature Front sensor over 50 G R R R G G R G ...

Page 30: ...d 2 Check thermal switch and wire 3 Check color wheel 4 Check DC Voltage 12V on Main board 5 Check Ballast 6 Check chip board No Signal 1 Check Input Cable 2 Check OSD Source set up 3 Check Input board 4 Check Main board Power Auto Turn Off 1 Check OSD Lamp Hours 2 Check Lamp Door 3 Check Lamp still light or not 4 Check Fan still spin or not 5 Check Thermal status IR Remote Control NG 1 Check Remo...

Page 31: ...3 Check main board No Yes 1 Check DMD Chip holder 2 Check DMD Chip board 3 Check Main board No Yes 1 Check Main BD Resistance RN32 RN47 soldering 2 Check the connector that connect main board and input board No Yes A 6 2 Engine Assembly Trouble Shooting Guide Image NG Raindrops 1 Check color wheel and Sensor board 2 Check DMD Chip and holder 3 Check Main BD Ram Bus 4 Check Main BD DDP2000 Image NG...

Page 32: ... Yes 1 change DMD 2 change DMD b 3 clean elastomer Yes Yes Yes light leakage No 1 chk DMD baffle 2 chk TIR Yes NG System Trouble shooting Guide Brightness 1 Reset Factory mode chk DC offset Gain setup 2 chk DMD b 3 clean projection lens 4 cleanTIR 5 clean optical parts Yes NG Uniformity Contrast Color Color Uniformity 1 Reset Factory mode chk DC offset Gain setup 2 chk DMD baffle 3 change projecti...

Page 33: ...actory mode press UP and DOWN key to switch between each function and press RIGHT and LEFT key to adjust the value z CW Delay Optical adjustment values for color output currently z Factory Reset Reset all the values to default except CW delay value and calibration data z Lamp Hours Total lamp usage hour and can be reset by user s mode when user change lamp and reset the lamp hour z Total Hours Can...

Page 34: ... fan speed setting which controlled by program z Manual fan speed Set the fan speed manually for testing purpose z Burn In On Minute Turn the projector on for X minutes z Burn In Off Minute Turn the projector off for X minutes then turn it on again z Burn In Cycle Time Cycle time for turning the projector on and off z Normal burn in hour Normal burn in time z Burn in Switch the burn in mode z Life...

Page 35: ...n RGB Refer to section 5 3 PC Alignment Procedure z Calibration YPbPr Refer to section 5 4 YUV Alignment Procedure z Auto Keystone Cal To put the projector flat on the table then press Left or Right key to adjust keystone 34 60 08 19 05 ...

Page 36: ...peed error count Count for power fan stop during normal operation z DIODE1 ERROR Count Lamp box sensor fail sensor open or short z DIODE2 ERROR Count Front inlet sensor fail sensor open or short z DIODE1 ERROR Count Not in use z Lamp box sensor over temperature count Sensor over 110 degree Celsius z Front sensor over temperature count Sensor over 50 degree Celsius z Temperature 3 Error Count Not i...

Page 37: ... be applied When replacing ENGINE adjustment procedure of 1 DMD Bias voltage 2 C W index delay should be applied When replacing DMD adjustment procedure of 1 DMD Bias voltage should be applied When replacing C W adjustment procedure of 1 C W index delay should be applied When replacing C W Sensor Board adjustment procedure of 1 C W index delay should be applied 36 60 08 19 05 ...

Page 38: ... appearance of projector M06 Front Foot Adjust M07 Back Foot Adjust M08 Lamp door E04 Speaker M03 Button Foot adjust M10 Lens Cap M11 Top Cover E12 Key pad board M01 Key function M02 Key circle M12 Front Cover E10 IR Board M14 Lower cover 37 60 08 19 05 ...

Page 39: ...TDP P75 Service Manual 8 2 Front side of projector E17 Back Fan module E09 Main Board E06 Thermal pad Blower E02 E08 Ballast E11 Power BD E03 DMD Fan 38 60 08 19 05 ...

Page 40: ...TDP P75 Service Manual 8 3 Rear side of the projector M13 Rear cover E13 Input board E15 AC Inlet 39 60 08 19 05 ...

Page 41: ...Service Manual 8 4 Optical Unit 1 2 3 4 DMD Housing E05 Zoom Ring M05 Focus Ring M04 Assembly Lens M09 1 DMD Chip E18 2 DMD Chip board E14 3 DMD Chip socket E01 4 Thermal pad E07 Color wheel E16 40 60 08 19 05 ...

Page 42: ...TDP P75 Service Manual 8 5 Packing Materials and Accessory A01 A02 A03 A07 A08 A09 A11 A12 41 60 08 19 05 ...

Page 43: ...EMOTE CONTROL UNIT A02 23587613 REMOTE CONTROL RECEIVER A03 23587614 POWER CORD UK A04 23587615 POWER CORD US A05 23587616 POWER CORD BLK A06 23587617 POWER CORD CHINA A07 23587618 POWER CORD EUR A08 23587619 BAG CARRY A10 23587621 OWNER S MANUAL EU US A11 23587622 OWNER S MANUAL SC 42 60 08 19 05 ...

Page 44: ...04 23587627 SPEAKER E05 23587628 HOUSING DMD E06 23587629 PAD THERMAL MAIN BOARD E07 23587630 PAD THERMAL DMD CHIP E08 23587631 BALLAST LAMP POWER E09 23587632 PC BOARD MAIN E10 23587633 PC BOARD IR E11 23587634 PC BOARD MAIN POWER TDP P75 Service Manual A12 23587623 CD ROM OWNER S MANUAL 43 60 08 19 05 ...

Page 45: ...PUT E14 23587637 PC BOARD DMD CHIP E15 23587638 WIRE ASSY SOCKET E16 23587639 COLOR WHEEL E17 23587640 EXHAUST FAN E18 23587641 DMD CHIP M01 23587642 KEY FUNCTION M02 23587643 KEY MAIN M03 23587644 FOOT ADJUST BUTTON M04 23587645 FOCUS RING M05 23587646 ZOOM RING 44 60 08 19 05 ...

Page 46: ...ST FRONT M07 23587648 FOOT ADJUST REAR M08 23587649 LAMP DOOR ASSEMBLY M09 23587650 LENS M10 23587651 LENS CAP M11 23587652 TOP COVER M12 23587653 FRONT COVER M13 23587654 REAR COVER M14 23587655 BOTTOM COVER P01 23587650 CARTON BOX 45 60 08 19 05 ...

Page 47: ...al 10 Parts Disassembly Disassembly Step Tool 1 2 screwdriver Pull the front case up according to the arrowhead direction then take up front case Front case Figure Explanation Loosen the front case screws 2 46 60 08 19 05 ...

Page 48: ...ewdriver Unplug the keyboard wire and take up the upper case Pull back the rear case according to the arrowhead direction Take up the rear case Figure Explanation Remove the front case then loosen the screws 5 Loosen the screw and clip 3 Upcase Rear cover Keypad BD A B 47 60 08 19 05 ...

Page 49: ...Disassembly Step Tool 1 2 3 4 Take off the mylar B on the fan Take out sponge Rear Fan Figure Explanation Unplug the fan wire Take off the fan rubber A A B Sponge 48 60 08 19 05 ...

Page 50: ...Step Tool 1 2 Screwdriver Figure Explanation Unplug the wire A and take up the fan Take out the fan from rubber Thermal BD Fan DMD Figure Explanation Pull up the wire A and loosen the screw to take up the thermal board A A 49 60 08 19 05 ...

Page 51: ...pad screwdriver hexagonal screwdriver Figure Explanation Unplug all the wires and screw 4 on the main board Main BD Remove hexagonal standoff 4 And then take up the Main BD Lift up the shield and take out the main board Take off the A EMI gasket A 50 60 08 19 05 ...

Page 52: ... input BD module and loosen the screw 2 Screwdriver Remove the input board shield Input BD Figure Explanation Remove the upper case main BD and Eng module Remove the A stand off 2 on the input BD module Hexagonal screwdriver A 51 60 08 19 05 ...

Page 53: ... Explanation Loosen the screws 2 and take off the lamp door screwdriver Push back the grip and loosen the screw A Lift up the handle and pull up the lamp Lift up the handle and pull up the lamp screwdriver Take out the Lamp A 52 60 08 19 05 ...

Page 54: ...Disassembly Step Tool 1 2 3 4 Take up the Rubber Take up the mylar Blower Figure Explanation Unplug the wire on A Take up the blower A 53 60 08 19 05 ...

Page 55: ...planation Unplug the wire 2 pliers Unplug the wire and cut off the wire tie A Then take up Ballast BD pliers Cut off the wire tie 2 Loosen the screws 1 take up the mylar Loosen the screws 2 and take up the frontscrewdriver screwdriver A A 54 60 08 19 05 ...

Page 56: ...6 7 8 9 Unplug the wire Take out power BD Loosen the stand off 3 on the power BD Hexagonal screwdriver Loosen the screw and unplug the wire screwdriver 55 60 08 19 05 ...

Page 57: ...ol 1 2 3 screwdriver screwdriver Loosen the screws 3 and take up the A louver Take the lamp box out of the groove Figure Explanation Lamp BOX Loosen the screws 2 and take up the thermal BD and thermal BKT A 56 60 08 19 05 ...

Page 58: ...bracket Unplug the wires on A Loosen the screws 3 on the optical engine screwdriver Loosen the A screw 2 on sensor board and B screws 3 on C W bracket Note Don t touch or press on the C W glasses when loosening the screws screwdriver Sensor BD C W screwdriver Figure Explanation A B A 57 60 08 19 05 ...

Page 59: ...he screws 4 and take up the heat sink Note When assembling the heat sink back to the chip board please fix the screws from 1 4 in order Take up the DMD bracket and chip BD Take up the DMD socket holder and DMD IC Figure Explanation Take up the DMD IC from soket holder 1 2 3 4 58 60 08 19 05 ...

Page 60: ...ver Figure Explanation Lens Disassembly Step Tool 1 screwdriver Lower Case Figure Explanation 1 Take up the A input BD module 2 Use screwdriver to push and roll out the B speaker from groove 3 Loosen the C grounding wire screw and take up the AC socket 4 Take up the D sponge Take up AC socket A C Sponge D B 59 60 08 19 05 ...

Page 61: ...T O S H I B A C O R P O R A T I O N 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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