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Toshiba TDP-P4, Service Manual

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Toshiba TDP-P4 Service Manual Download Page 57

TDP-P4 Service Manual 

 

57   

5 

Use a Torx T-8 screwdriver to remove the four M2.5x6 screws that attach the power supply to the 

bottom case. 

 

6 

Lift the power supply from the bottom case. 

7 

If you are replacing the power supply, carefully remove the 

power supply insulator 

(505-0889-

xx) from the bottom of the power supply. 

 

Assembly Notes 

♦ 

Before replacing the power supply insulator, make sure it is in good condition. There should be no 

holes or tears in the top or bottom. If you observe damage, replace the insulator.  

Summary of Contents for TDP-P4

Page 1: ......

Page 2: ...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 and mechanical ...

Page 3: ... Fan 29 Lamp Fan 31 Controller ECA 34 Ballast 37 Front Bezel Latch 41 Optical Engine 45 Elevator Assembly 50 Engine Blower 53 Power Supply 55 Bottom Case 59 Software Upgrades 63 Downloading the software to your computer 63 Installing the Software on the Computer 65 Upgrading the TDP P4 software 66 Performing Functional Tests on the TDP P4 71 Troubleshooting 76 Parts Lists 96 Case Parts Exploded Vi...

Page 4: ...nce 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 equipment Notice This Cla...

Page 5: ...d 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 INSTRUCTIONS 5 ...

Page 6: ...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 instructions A...

Page 7: ...t 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 see page 96 Controller ECA 510 1544 xx Lamp module SP LAMP LP1 Optical engine 530 0120 xx Ballast 526 0090 xx Front fan 526 0065 xx ...

Page 8: ...f optical engine Power supply 510 0889 xx Engine blower fastened to the optical engine below the controller ECA 526 0071 xx Also part of optical engine Power supply insulator located between power supply and bottom case 510 0889 xx I O EMI shield 330 0700 xx ...

Page 9: ...nt of the lens while the zoom ring secures to the lens barrel with three M2x3 Phillips screws with star washers 1 Pull the focus ring away from the front of the projection lens 2 To access the zoom ring remove the optical engine see page 45 3 Turn the optical engine upside down on a soft surface CAUTION The optical engine in the TDP P4 has an exposed glass color wheel Take extreme care when handli...

Page 10: ...the lens barrel Assembly Notes Fasten the zoom ring to the side of the lens barrel with the three M2x3 screws with star washers Tighten the screws to 2 in lbs 226 N m Snap the focus ring around the front of the lens making sure that the three recesses in the focus ring engage the three tabs on the sides of the lens ...

Page 11: ...NOTE The front bezel contains a plunger that engages the interlock switch on the ballast assembly The lamp will not strike with the front bezel removed unless you defeat the interlock switch See page 91 for information about powering up the projector with the top removed 1 Place the projector on its side to release the front bezel latch Use your finger or a screwdriver to slide the latch tab towar...

Page 12: ... bezel off of the projector Assembly Notes When you replace the front bezel make sure that the hooks on the bezel properly engage the pins on the top and bottom cases Slide the bezel toward the lens until the latch locks the bezel in position ...

Page 13: ...on of the lamp module that is located in the light path Oils from your fingers can 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 quartz or glass fragments that could cause personal injury 1 Remove the front bezel see page 11 2 Use a flat blade screwdriv...

Page 14: ... Assembly Notes Slide the lamp module in between the three guide rails on the optical engine Then press the module into place Push the release latch at the lower left side of the lamp module inward to engage the connection between the lamp module and the ballast Tighten the captive screw to 3 in lbs 339 N m ...

Page 15: ...he bottom case It fastens to the projector with one M2 5x6 Torx screw 1 Use a T 8 Torx driver to remove the M2 5x6 Torx screw from the rear bezel 2 Gently pry the rear bezel away from the projector You may need to use a small screwdriver Do not pry around the edge of the bezel Instead reach in between the power button and the bezel ...

Page 16: ...Notes Replace the right side of the bezel first Then press the left side into place The bezel should fit flush with the top and bottom cases Fasten the bezel to the projector with the M2 5x6 screw Tighten the screws to 3 in lbs 338 N m ...

Page 17: ...ated on the bottom case at the bottom rear of the projector To replace a rubber foot peel the protective paper off the bottom of the foot Then press the foot into the recess in the bottom case If you need to remove a portion of an old rubber foot gently pry it away from the bottom case ...

Page 18: ... IR receiver on the controller ECA When you replace the top case you must first remove the keypad from the old case then install it in the new top case 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 2 Place the unit upside down on the bench and detach the keypad cable from its ZIF connector on the controller ECA The connector is adjacent to the I O panel ...

Page 19: ...a T 8 Torx driver to remove the M2 5x8 Torx screw that secures the top case to the projector 4 Carefully turn the unit over and lift the top case away from the projector If you are replacing the top case remove the keypad see page 21 ...

Page 20: ...jector Ensure that the keypad cable is properly routed and securely fastened to its ZIF connector on the controller ECA The silver contacts at the end of the cable should face toward the top case in the ZIF connector Check the ZIF connector latch after you insert the cable to make sure it is locked Secure the top case to the bottom case with the M2 5x8 Torx screw Tighten the screw to 3 in lbs 339 ...

Page 21: ...keypad with the controller ECA 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 2 On the inside of the top case use tweezers or small needle nose pliers to press out the three tabs that hold the keypad to the top case Make sure to hold the keypad in from the other side when you release the tabs ...

Page 22: ...Assembly Notes Make sure to route the keypad through the slot in the top case and that the cable folds at 90 degrees to extend from the rear of the top case Place the keypad into its recess in the top case being careful to avoid kinking the cable Then gently press the keypad into place Take care not to bend the tabs on the back of the keypad ...

Page 23: ...d drain electro magnetic interference away from M1 or video source signal connections to ground 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 2 Use a 3 16 inch nut driver to remove the 4 40 jack screws from both sides of the M1 connector 3 Pull the I O shield away from the M1 and video connectors on the controller ECA ...

Page 24: ... I O shield will contact the rear bezel when it s replaced The contact fingers at the top of the I O shield should contact the top case when it s replaced Fasten the I O shield to the M1 connector on the controller ECA using the two jack screws Tighten the jack screws to 4 in lbs 451 N m ...

Page 25: ...h a new ballast For information about checking voltages see Controller Voltages on page 90 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 Lamp module see page 13 2 Unplug the lamp sync cable from connector J504 on the controller ECA CAUTION Make you do not stretch the cables inside the connectors Use a needle nose pliers or tweezers to unplug the c...

Page 26: ...TDP P4 Service Manual 26 3 Unplug the power supply ballast cable from its connector on the ballast 4 Remove the screw that fastens the ballast to the bottom case ...

Page 27: ...tab in the front of the ballast Note that the ballast is still attached to the power supply with a cable 6 Place the ballast on the work surface next to the bottom case Use a tweezers or small pick to work the lamp sync cable connector loose Take care not to damage the circuit board ...

Page 28: ...t the two connectors on the lamp sync cable are different The connector with the small holes plugs into the ballast To plug in the cable align the holes on the cable connector with the pins on the ballast connector Then press the connector into place ...

Page 29: ...barrel The fan exhausts heated air from the power supply and optical engine through vent slots in the front bezel 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 2 Unplug the fan cable from the controller ECA at connector J500 3 Lift the fan from its recess in the bottom case ...

Page 30: ... direction arrow on the top of the fan points toward the front of the projector and that the fan cable wires route through the slot in the fan housing Position the fan so that it rests in the guide slots in the bottom case Reconnect the cable to the controller ECA ...

Page 31: ...with a new optical engine 1 Remove the following items Front bezel see page11 Rear bezel see page 15 Top case see page 18 2 Unplug the following cables from their connectors on the controller ECA The cables circled below are in a group near the lamp fan Lamp fan cable at connector J502 Optical engine blower at connector J503 Lamp sync cable at connector J504 Power supply cable at connector P2 belo...

Page 32: ...cal engine chassis 4 Carefully twist the fan counterclockwise to allow it to clear the optical engine chassis and the ballast assembly during removal The fan fits into a recess in the ballast By twisting the fan slightly you can clear both the ballast and the controller ECA 5 Lift the fan out of the projector ...

Page 33: ...e front of the projector and that the fan cable wires route through the slot in the fan housing Position the fan against the bracket on the optical engine chassis Replace the M2 5x6 screw that secures the fan to the optical engine chassis Tighten the screw to 3 in lbs 339 N m Reconnect the cables to the controller ECA ...

Page 34: ...over on top of the optical engine It includes a shroud that covers the slot through which the top portion of the color wheel extends 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page18 2 Unplug the cables from the following connectors on the controller ECA ...

Page 35: ...he six M2 5x6 screws that attach the controller ECA stack to the bottom case and optical engine 4 Carefully lift the controller ECA upward to disengage the connector on the bottom side from the optical engine Lift from the center of the board as indicated below ...

Page 36: ...ud Hold the color wheel cable out of the way see photo above Make certain that the connector on the bottom side of the controller ECA aligns properly with the connector on the optical engine After you confirm proper alignment of these connectors press the controller ECA down firmly to ensure that they securely engage Fasten the controller ECA to the optical engine and bottom case with the six M2 5...

Page 37: ...output voltage from the ballast when the lamp strikes High voltage produced by the ballast to strike the lamp can ruin test instruments as well as cause personal injury 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 Lamp module see page 13 Controller ECA see page 34 Lamp fan see page 31 2 Squeeze the tab on the side of the power supply cable connec...

Page 38: ...TDP P4 Service Manual 38 3 Unplug the ballast connector at the power supply 4 Use a Torx T 8 screwdriver to remove the M2 5x6 screw that attaches the ballast assembly to the bottom case ...

Page 39: ...TDP P4 Service Manual 39 5 Lift the ballast assembly from the rear side to disengage the hook on the front from the eye in the bottom case ...

Page 40: ...asten the ballast assembly to the bottom case with the M2 5x6 screw Tighten the screw to 3 in lbs 338 N m CAUTION Avoid damage to the plastic insulation on the side of the ballast assembly when you install it in the bottom case The insulation should have no holes or tears If holes or tears are apparent do not use the ballast assembly ...

Page 41: ... slot on the side of the bottom case allows access to the latch Releasing the latch allows the front bezel to be removed from the projector A new bottom case 505 0812 xx includes the front bezel latch 1 Remove the following items Front bezel see page 11 Lamp module see page13 Rear bezel see page 15 Top case see page 18 2 Squeeze the tab on the side of the power supply cable connector and unplug it...

Page 42: ...o remove the M2 5x6 screw that attaches the ballast assembly to the bottom case 4 Lift the ballast from the rear side to disengage the hook on the front from the eye in the bottom case Note that the ballast is still attached to the power supply with a cable ...

Page 43: ...TDP P4 Service Manual 43 5 Use a Phillips screwdriver to remove the M2 5x6 screw and washer from the front bezel latch ...

Page 44: ...ure that the spring is in position on the actuator before you install the front bezel latch in the bottom case The spring should be fully seated on the actuator and rest against the tang in the bottom case Replace the M2 5x6 screw and washer that secure the front bezel latch in the bottom case Check the operation of the front bezel latch before you assemble the projector ...

Page 45: ... The optical engine contains a formatter ECA that processes the image signal from the controller ECA before the signal is delivered to the DMD The optical engine also includes a gasket that insulates it from the controller ECA 1 Remove the following items Front bezel see page 11 Lamp module see page13 Rear bezel see page 15 Top case see page 18 Controller ECA see page 34 CAUTION The color wheel is...

Page 46: ...r to remove the two M2 5x6 Torx screws that attach the optical engine to the bottom case 3 Carefully lift the optical engine up and out of the bottom case Take care where you pick the engine up Below are some good places to grasp the optical engine ...

Page 47: ...ove the optical engine from the projector place it in the case in which the new optical engine arrived Go to page 48 to see how to pack the engine in the clamshell case Ensure that the gasket is in place on the top of the optical engine to insulate it against the controller ECA Tighten the two M2 5x6 screws that secure the engine to the bottom case to 3 in lbs 338 N m ...

Page 48: ...ne and color wheel during shipping and storage When you replace an optical engine in the TDP P4 you must put the old engine in the clamshell case in which the new engine was shipped The case is hinged on one end and it snaps together on the other end 1 Place the engine in the clamshell case so that the lens and the engine chassis align with the case s molded shape ...

Page 49: ...TDP P4 Service Manual 49 2 Close the top of the case over the engine and snap the corners together ...

Page 50: ...e of the bottom case A new bottom case includes the elevator 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 Lamp module see page 13 Front fan see page 27 Controller ECA see page 34 Optical engine see page 45 2 Adjust the elevator shaft to its fully extended position 3 Gently pry one of the two tabs on the elevator housing away from the stops at the...

Page 51: ...2 5x6 screw that fastens the housing to the bottom case 5 Slide the elevator housing toward the center of the projector to disengage two tabs from slots in the bottom case Then remove the housing 6 Once the housing is out you can lift the actuator out of the bottom case ...

Page 52: ...otes Hold the actuator and housing together as you replace them in the bottom case Note how the actuator end fits into the housing Fasten the elevator housing to the bottom case with the M2 5x6 screw Tighten the screw to 3 in lbs 338 N m ...

Page 53: ...e blower moves air across the front of the lamp module directing excessive heat away from the optical engine The optical engine blower is also included with a new engine 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 Controller ECA see page 34 Optical engine see page 45 2 Use a small flat blade screwdriver to gently pry the blower away from the opt...

Page 54: ...gine chassis tape residue will be left behind Clean away this residue to ensure good adhesion of the replacement blower Assembly Notes Peel away the protective backing from one side of the double sided adhesive tape Apply the tape to the optical engine chassis Then remove the protective backing from the front side of the adhesive tape Position the optical engine blower carefully so that the discha...

Page 55: ...equired 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 the following items Front bezel see page 11 Lamp module see page 13 Rear bezel see page 15 Top case see page 18 Controller ECA see page 34 Optical engine see page 45 2 Open the cable clip attached to the...

Page 56: ...TDP P4 Service Manual 56 3 Squeeze the tab on the side of the power supply cable connector and unplug it from the ballast assembly 4 Unplug the ballast connector at the power supply ...

Page 57: ... supply from the bottom case 7 If you are replacing the power supply carefully remove the power supply insulator 505 0889 xx from the bottom of the power supply Assembly Notes Before replacing the power supply insulator make sure it is in good condition There should be no holes or tears in the top or bottom If you observe damage replace the insulator ...

Page 58: ... shown below Note how the insulator is folded and taped on one corner This allows the insulator to wrap around the post near the rear corner of the bottom case Fasten the power supply to the bottom case with the M2 5x6 screws Tighten each screw to 3 in lbs 338 N m ...

Page 59: ...ification label see the Assembly Notes below When you replace the bottom case you must first remove all the parts in the old case then install them in the new bottom case 1 Remove the following items Front bezel see page 11 Rear bezel see page 15 Top case see page 18 Controller ECA see page 34 Optical engine see page 45 Power supply see page 55 Power supply insulator see page 57 Ballast see page 3...

Page 60: ... the serial number label on the old bottom case Take care not to ruin the label by applying too much heat Attach the serial number label to the certification label on the new bottom case The certification label 020 1077 xx fits into the recessed area on the outside of the bottom case If you need to replace it be sure to remove the serial number label above and adhere it to the new certification la...

Page 61: ...in the Status menu do the following 1 Press and hold the resync button 2 While holding the resync button down press the menu button for 10 seconds 3 To verify that the counter was reset press the menu button then navigate to the Status menu The lamp counter is at the top of the list ...

Page 62: ... You ll also find the suggested torque settings for each fastener Fastener Application Torque M2 5x6 Torx SEM Power supply 4 ballast 1 optical engine 2 controller ECA 6 rear bezel 1 3 in lbs 34 N m M2 5x8 Torx SEM Lower case 1 3 in lbs 34 N m Jack nuts 4 40 w lock I O EMI 2 4 in lbs 452 N m M2x3 Star SEM Zoom ring 2 2 in lbs 226 N m ...

Page 63: ...tem boot and splash screen software for the TDP P4 Downloading the software to your computer When you click the Download Now button on the Software page the File Download dialog box appears NOTE The illustrations below refer to version 3 0 of the TDP P4 software The version of the software you download may be different 1 In the File Download box select Save This Program To Disk option then click O...

Page 64: ...e file then click OK NOTE Once you install the software files you won t need the EXE file you download You may want to save it in a temporary folder The file downloads to your computer s hard drive Now you re ready to install the software on the computer See page 65 to install the software on the computer ...

Page 65: ...ile that contains the upgrade files Double click the file to extract the contents The filename P4v30 exe means that this is version 3 0 of the system software for the TDP P4 The version number changes each time the software is updated 3 The WinZip Self Extractor dialog box appears Leave the folder choice as c WinZip extracts the files to several locations NOTE If you can t find the file use the Wi...

Page 66: ...nd must have an available USB connector Connect the projector to the computer with the M1 A cable 5 Plug the M1 A cable into the projector and computer as shown in the illustration below You don t need to plug in the monitor cable 6 Plug the power cord into the projector and into a power source Now you re ready to upgrade the software Upgrade the software 1 Open Windows Explorer navigate to the ba...

Page 67: ... Service Manual 67 The FlashUSB dialog box opens ready to begin the upgrade process 2 Click the Select Files button in the FlashUSB dialog box 3 In the Open dialog box select all the HEX files then click Open ...

Page 68: ...sync buttons 5 While holding the buttons down power up the projector NOTE If you re upgrading a TDP P4 for the first time you may see Windows 98 New Hardware Wizard Follow the instructions then continue with this procedure 6 Hold the keys down firmly after you power up the projector The projector should go to load state where the fans are running and the green LED glows but the lamp does not light...

Page 69: ...dialog box click the Download button The software begins downloading to the projector The process takes several minutes When the download is complete the FlashUSB dialog box closes and the projector lamp lights The Toshiba splash screen appears ...

Page 70: ...r in the example above The version number is really a list of the HEX files version numbers See the illustration in step 7 The version numbers are listed with the selected HEX files in the File List box in the FlashUSB dialog box In the illustration above 23 boot code v2 3 23 data configuration v2 3 26 GUI code v2 6 30 ROM code v3 0 The version number you see should match the series of version num...

Page 71: ...reproduce colors better and project sharper images The least preferable is a VCR If you must use a VCR make sure you use a commercially produced recording not one recorded from a broadcast source The VCR must include an S video connector in addition to a composite connector Commercially produced video You ll need the video in DVD laser disc or video cassette format Toshiba strongly suggests you us...

Page 72: ...such as an anti static mat when running the tests Connect the following to the I O panel on the projector Video player through Composite Video and S video ports Computer through M1A cable Perform the following tests Test Verification Power Up Connect AC power and turn the unit on Verify that the proper splash logo screen appears Verify image quality Cosmetics and mechanicals Adjust the projector s...

Page 73: ...n Navigate to the Status menu Check the software version 2 Navigate to the Display menu Select Reset All 3 Press the Standby button on the keypad Verify software version Verify the keys are not sticky Verify unit goes in and out of standby mode The next step is to observe 3 computer images These will confirm that the computer input works properly and will test image quality Press the Computer butt...

Page 74: ...argest image then repeat the focus tests Verify that all four corner icons have clear resolution Verify that the white space is visible on all 5 bar line icon areas between green Verify that the image focuses through the full zoom range Verify that the image remains in focus when the Image Shift knob is turned Image 2 Color Ramp Project the Color Ramp image Verify there are no missing parts of the...

Page 75: ...ting columns or other general image abnormalities present On the keypad press Menu On the Display menu select Reset All Verify that the image synchronizes 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 ...

Page 76: ... the projector a Power problems page 77 b Image problems page 82 c Remote problems page 86 d Keypad problems page 87 e No menu page 88 A system controller ECA block diagram page 89 Voltage check points on the controller ECA page 90 Powering up the projector with the top case removed page 91 Checking fan operation page 93 ...

Page 77: ...s The projector will not power up only partially powers up or will not remain powered up No lamp Fans are running No signs of power No fans no LED What is the problem Lamp or projector shuts off after running a short period of time page 78 page 79 page 81 ...

Page 78: ...TDP P4 Service Manual 78 No signs of power No fans no LED Use a known good power cord Does the projector power up Yes No Replace power cord Replace power supply page 55 ...

Page 79: ...uptures no bulges no cracks in reflector A good lamp can be substituted if you want to be absolutely certain the lamp is not the problem Replace the lamp module Go to next page Confirm that the color wheel cable is connected If the color wheel cable is disconnected the lamp will light and the fans will start briefly before shutting down page 95 ...

Page 80: ...an assembly Lamp Fan Front Fan Engine Blower Note The color wheel must also be running for a good lamp enable signal Color wheel failure is almost always due to bad voltage from the controller board Yes No No Yes No Yes No Yes All fans have a feedback sensor line that disables the ballast and lamp When one or more fans are not running the projector will power up for 60 seconds and then shut down D...

Page 81: ...Note This is a thermal issue One of the following conditions most likely exists 1 A component in the low voltage power supply or on the controller ECA is faulty and malfunctions when it gets hot 2 The thermal switch is faulty and opens at too low a temperature very rare Does the projector run properly Yes Replace the power supply No Does the projector run properly Yes Replace the controller ECA No...

Page 82: ...issing tint or color Missing logo VGA composite video or S video Distorted image noisy rolling torn frozen plaid repeated or shifted image Flash or reflash the projector with the latest software Confirm that all image adjustments are set to the factory defaults On the Display menu choose Reset All Confirm that the cables and the source signals are good If in doubt feed the signal to a good project...

Page 83: ...TDP P4 Service Manual 83 No image Vertical lines Horizontal lines Sparkly picture Clusters of dark pixels Replace the controller ECA Is the image correct No Replace the optical engine page 34 page 45 ...

Page 84: ...ing startup screen VGA composite video or S video Distorted image excess noise rolling image torn image frozen image plaid image repeated single image or shifted image Make sure cables are good Is the image correct No Replace the controller ECA page 32 page 34 ...

Page 85: ...d lamp Replace the lamp Is the image brighter Yes Substitute a known good controller ECA Replace the controller ECA Is the image brighter Yes No Replace the optical engine The lamp takes about 90 seconds to achieve full brightness No page 34 page 13 page 45 ...

Page 86: ...hooting Remote Problems Infrared remote problem Does the remote work No Use known good batteries in the remote Use a known good remote with the projector Does the remote work No Yes Replace the remote Replace the controller ECA page 34 ...

Page 87: ... good controller ECA No Replace the keypad Yes Replace the controller ECA Yes Substitute the good keypad Does the projector respond to key presses No Replace the controller ECA Yes Replace the keypad Does the projector respond to key presses Remove the rear bezel and plug the good keypad in without removing the top case page 21 page 34 page 34 page 21 page 34 page 21 ...

Page 88: ...menu appear No Flash or reflash the latest software into the projector Replace the controller ECA Does the menu appear No Yes If the remote works and the keypad doesn t go to Keypad problems Try pressing the Menu button on both the remote and keypad If the keypad works and the remote doesn t go to Remote problems Yes page 87 page 86 page 34 ...

Page 89: ...TDP P4 Service Manual 89 Block Diagram ...

Page 90: ...TDP P4 Service Manual 90 Controller voltages ...

Page 91: ...ballast Be very careful where you probe and where you touch 1 Remove the following parts Front bezel see page 11 NOTE If you only want to check the interlock switch remove the front bezel then refer to the pictures below for the location of the switch Rear Bezel see page 15 Top case see page 18 Once the top case is off you have access to the interlock switch on the front of the ballast 2 Defeat th...

Page 92: ...TDP P4 Service Manual 92 3 Power up the projector ...

Page 93: ...wer do the following 1 Remove the following parts Front bezel see page 11 Rear Bezel see page 15 Top case see page 18 Lamp module see page 13 Once the top case is off you have access to the interlock switch on the front of the ballast 2 Defeat the interlock switch with a nylon screwdriver or spacer ...

Page 94: ...Manual 94 3 Plug the projector in and turn it on The fans and blower start up and run for 2 3 seconds then shut down because there is no lamp installed This is time enough to make sure the fans and blower run properly ...

Page 95: ...y inserted into its ZIF connector To check the connection hold the cable with a tweezers and gently tug on it The cable should not move If the cable moves in and out or side to side in the connector it probably is not making good contact Release the latch re insert the ribbon cable then tighten the latch ...

Page 96: ...levator Assembly 505 0906 xx Also part of bottom case Rear bezel 505 0901 xx Zoom ring 505 0921 xx Keypad 526 0089 xx Front bezel latch 505 0918 xx Also part of bottom case Front bezel 505 0814 xx Focus ring 505 0874 xx Top case 526 0811 xx Bottom case 505 0812 xx ...

Page 97: ...ne 5050920xx Ballast 526 0090 xx I O EMI shield 330 0700 xx Front fan 526 0065 xx Power supply 510 1506 xx Power supply insulator 505 0889 xx Controller ECA 510 1544 xx Engine blower 526 0071 xx Optical engine 530 0120 xx Lamp fan 526 0076 xx This item not avilable separately Order 5050920xx ...

Page 98: ... Fits between power supply and bottom case 505 0901 xx Bezel rear 505 0906 xx Elevator assembly Includes elevator shaft actuator and housing 505 0918 xx Latch front bezel 505 0920 xx Optical engine kit Includes new optical engine and controller engine gasket 505 0921 xx Ring zoom 505 0933 xx Fan lamp 50mm fan fastens to the optical engine and may be replaced separately 510 1506 xx Power supply 510...

Page 99: ...5 xx Installed in projector Analog Cable 210 0185 xx Analog M1 A to USB and VGA cable SVHS Cable 210 0125 xx MD4 to MD4 RCA Video Cable 210 0176 xx MAC Adapter 515 0045 xx Lens Cap 505 0816 xx Lens Cap Tether 321 0170 xx North American Power Cord 210 0023 xx Australian Power Cord 210 0027 xx British Power Cord 210 0028 xx European Power Cord 210 0029 xx Danish Power Cord 210 0030 xx Swiss Power Co...

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