InFocus ScreenPlay 7205 Service Manual
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InFocus ScreenPlay 7205 Service Manual

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ScreenPlay 7205 Service Guide

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  • Page 1 ScreenPlay 7205 Service Guide...

  • Page 2: Table Of Contents

    Table of Contents Safety Precautions ......................3 Important Precautions ....................3 Important Safety Instructions ..................4 Parts Replacement ......................5 Removable Parts Hierarchy ....................6 Ballast ...........................7 Bottom Case .........................9 Chassis ..........................11 Remove and Replace the Color Wheel Assembly ..............14 Calibrate the Color Wheel ....................17 Controller ECA ........................21 Optical Engine........................24 Fan Assembly ........................26...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDETHE ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIRED PERSONNEL ONLY. CAUTION: Laser beam is emitted when the laser button of the remote control is pressed.

  • Page 4: 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 5: Parts Replacement

    Parts Replacement This section is designed to let you quickly access information on removal and replacement of FRUs. Go to the section for the part you want to replace. If there are other parts you must remove to access the part you want, you should go to those removal instructions.

  • Page 6: Removable Parts Hierarchy

    Removable Parts Hierarchy The flow chart below shows what parts must be removed to access each FRU in the projector. The parts on the first level (the lamp door, for example) are accessible without removing any other parts. The more levels down a part is, the more parts you need to remove.

  • Page 7: Ballast

    Ballast The ballast is located in the chassis above and forward of the power supply. The ballast steps up power from the power supply to ignite the lamp module. DANGER Do not attempt to measure the 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.
  • Page 8 Remove the two M3x8 screws that fasten the ballast to the chassis. Lift the ballast away from the chassis. Assembly Notes • Plug in the power supply/ballast cable and the lamp control cables to their connectors on the ballast. • Position the bottom of the ballast in the slots in the chassis.

  • Page 9: Bottom Case

    Bottom Case The bottom case encloses the bottom half of the projector. When you replace a bottom case, you also need to adhere a new certification label. Remove the following items: Lamp door and lamp module (page 35) Outer handle (page 37) Rear bezel (page 42) Top case (page 47) Inner handle and front vent (page 31)
  • Page 10 Assembly Notes • Adhere a new certification label to the bottom case. Then adhere the original serial number label in the serial number box. • Adhere one of the old rubber feet to the foot at the rear of the bottom case. Adhere the other rubber foot to the center of the leveling foot knob.

  • Page 11: Chassis

    Chassis The metal chassis provides the necessary rigidity for the projector’s internal components, yet it adds very little to the overall weight. The power supply, ballast, rear IR receiver, lamp connector retainer and safety switch fasten to the chassis. The ballast/power supply insulator provides electrical insulation between the chassis and components inside it.
  • Page 12 Remove the M3x8 Torx screw from the side of the chassis above the power supply ground terminal. Remove the two M3x6 Torx screws from the lamp connector retainer on the front of the chassis. The lamp connector and lamp connector retainer remove with the chassis. Lift the chassis from the bottom case.
  • Page 13 Place the chassis on the bench and remove the following parts: Safety switch (page 45) Power supply (page 39) Ballast (page 7) Remove the ballast/power supply insulator. To do this, tilt the insulator away from the front wall of the chassis and the ballast mounting standoffs. Then lift the insulator out of the projector. You are left with the bare chassis.

  • Page 14: Remove And Replace The Color Wheel Assembly

    Remove and Replace the Color Wheel Assembly The color wheel assembly includes the glass color wheel, a motor and an ECA. The assembly mounts to the side of the metal optical engine. The color wheel ECA connects to the controller ECA via a removable color wheel cable and by a ribbon cable that is hardwired to the color wheel ECA.
  • Page 15 Remove the M3x8 Torx screw with washer that fastens the color wheel bracket to the engine. Once you remove the screw, all that is holding the color wheel to the engine are two alignment pins that insert into two matching holes on the color wheel bracket. Remove the color wheel from the engine.
  • Page 16 Handle the new color wheel only by the heatsink and bracket. Do not touch the glass or flex the color wheel. Bearing damage could occur. • Torque the color wheel and color wheel shroud screws to 6 in/lbs (.67 Nm). InFocus recommends that you use a calibrated driver to avoid stripping the threads in the aluminum engine. •...

  • Page 17: Calibrate The Color Wheel

    Service menu. • The XGA Color Ramp screen, which is available on the SP7205 ASC page (www.infocus.com/service/sp7205/asc-resources.asp). Connect the projector and computer. Display the computer image. The projector must be five feet from the projection screen.
  • Page 18 If the color ramp you project shows uneven progression from black to color, the color wheel requires calibration. Depending on how much out of calibration the color wheel is, the screen may look better or worse than the one below. Go to the next step.
  • Page 19 Below is an illustration showing the sequence of keys to press on the remote. On the Hidden Service menu, select Color Wheel Index. The color wheel index slider bar appears to the right of the menu. Both appear on top of the color ramp screen.
  • Page 20 Use the Up and Down keys on the remote control to adjust the color uniformity on the color ramp screen. When you finish, press the Menu button to close the Hidden Service menu and accept the changes. NOTE As long as the projector remains powered up, you do not need to re-enter the password to open the Hidden Service menu.

  • Page 21: Controller Eca

    Controller ECA The controller ECA mounts to the top of the metal chassis above the optical engine and power supply. It fastens to the chassis with seven screws and connects to the DMD ECA through a direct connector on the bottom of the controller. A new controller ECA includes a new I/O shield over the input and output ports.
  • Page 22 Unplug the controller/power supply cable from the controller ECA. Squeeze the latch on the bottom of the connector to release it. Remove the seven M3x8 Torx screws that fasten the controller ECA to the chassis. Lift the controller ECA over the optical engine to release the DMD/controller connector. Lift the controller out of the projector.
  • Page 23 Assembly Notes • Align the controller/DMD connector, then press the controller down firmly. You will feel the connector halves engage. • Use a T-10 driver to install the seven M3x8 Torx screws. Torque the screws to 6 in-lbs (.68 Nm). •...

  • Page 24: Optical Engine

    Optical Engine The optical engine fastens to the bottom case. The body of the engine fastens to the optical engine mounting bracket, while the light tunnel fastens directly to the bottom case near the lamp house. The engine comprises all parts in the light path including the: •...
  • Page 25 Remove the four M3x8 Torx screws that fasten the optical engine to the mounting bracket. Grasp the engine around the projection lens barrel. Then lift the engine up out of the case. Place the engine on a static-free surface or in an ESD-protected container. Assembly Note •...

  • Page 26: Fan Assembly

    Fan Assembly The fan assembly is comprised of two fans and the fan bracket. The two fans provide all the cooling air necessary for the projector. Remove the following items: Outer handle (page 37) Rear bezel (page 42) Top case (page 47) Unplug the left IR receiver cable from connector J508 and the fan cables from connectors J506 and J517 on the controller ECA.

  • Page 27: Focus And Zoom Rings

    Focus and Zoom Rings The focus ring fits around the front of the projection lens. The zoom ring is behind the focus ring. The lens cap snaps onto the focus ring. Both the focus ring and the zoom ring snap into place on the lens barrel. They can be replaced without removing any other projector parts.
  • Page 28 Gently pull forward on the zoom ring and repeat step 3 for the other two retainer tabs. When you release all 3 retainer tabs, grasp the zoom ring and pull it off of the lens barrel. SP7205 Service Manual...
  • Page 29 Assembly Notes • Align the three tabs on the zoom ring with the three holes on the lens barrel. Push the ring onto the lens barrel. The lens barrel should fit snugly against the collar inside the zoom ring. Rotate the zoom ring to ensure that the tabs properly engage the holes.

  • Page 30: Front Ir Receiver And Cable

    Front IR Receiver and cable The front IR receiver and cable is located behind the front IR lens in the inner handle. It consists of the IR ECA and a cable that connects to the controller ECA. The receiver works with others at the rear and both sides of the projector to provide omni-directional reception of commands from the remote control.

  • Page 31: Handle

    Handle The handle is comprised of the curved plastic handle and a vent. It provides rigidity to the front of the projector. Remove the following items: Outer handle (page 37) Rear bezel (page 42) Top case (page 47) Front IR receiver (page 30) Lift the handle from the side of the projector opposite the lens.

  • Page 32: I/O Emi Shield

    I/O EMI Shield The I/O EMI shield fits over the I/O connectors on the rear of the controller ECA. It fastens to the controller with eight jack screws. Remove the following items: Outer handle (page 37) Rear bezel (page 42) Top case (page 47) Remove the six 4-40 jack screws and the two Phillips screws that fasten the EMI shield to connectors on the controller ECA.

  • Page 33: Keypad

    Keypad The keypad fastens to the inside of the top case. The keypad consists of the keypad ECA, the rubber key set. Both parts are available separately. Remove the following items: Rear bezel (page 42) Outer handle (page 37) Top case (page 47) Place the top case face down on a soft work surface.
  • Page 34 Assembly Notes • The keypad ECA and the key set fit only one way in the top case. Make sure that the alignment holes in the keypad ECA fit over the pins in the top case. • Make sure that the collar on each key fits flush against its hole in the top case. •...

  • Page 35: Lamp Door And Lamp Module

    Lamp Door and Lamp Module The lamp door fits over the lamp cavity in the projector. It includes a tab that closes the interlock switch when the door is shut. The lamp module consists of a metal housing and enclosed reflector assembly and arc tube. A blower on the side of the lamp module provides cooling air to the arc tube and reflector inside of the housing.
  • Page 36 Assembly Notes • The lamp must be seated properly to fully ignite. Make sure the two alignment pins on the lamp module engage the holes inside the lamp cavity. • Make sure the bail on the lamp module is folded down in storage position. It snaps into position. NOTE If the lamp door does not fit flush in the door opening, it is probably because the bail is not completely folded down.

  • Page 37: Outer Handle

    Outer Handle The outer handle covers the front of the projector and helps to secure the top case to the bottom case. Pins on the handle fit into holes through tabs on the top and bottom cases. When the pins engage the holes, the top and bottom cases lock together at the front of the projector and hold the outer handle in place.
  • Page 38 Remove the front IR lens and save it for use with the replacement outer handle. Press on one of the tabs on the lens to disengage it from its slot on the outer handle. Assembly Notes • Align the two tabs on the front IR lens with the slots on the outer handle. Press the lens into place to secure it.

  • Page 39: Power Supply

    Power Supply The power supply fastens to the chassis. It converts 100-240 VAC supply voltage to various low voltage DC levels required internally by the projector. The power supply interfaces with the ballast through the lamp control cable to control lamp strike and operation, and through the power supply/ballast cable to provide DC power.
  • Page 40 Remove the M3x8 Torx screw that fastens the ground terminal to the side of the chassis. Use a Torx T-10 screwdriver to remove the seven M3x8 screws that fasten the power supply to the chassis. Lift the forward side of the power supply to allow the AC line connector to pass through the hole in the chassis.
  • Page 41 Assembly Notes • Insert the power supply into the chassis with the forward side up to allow the AC line connector to pass through the hole in the chassis. • Torque the six M3x8 Torx screws to 6 in-lbs (.68 Nm). •...

  • Page 42: Rear Ir Receiver

    Rear IR Receiver The rear IR receiver fastens to the chassis. It includes the cable that connects to the controller ECA. NOTE To replace the rear IR lens, see Rear Bezel on page 42 for information. Remove the following items: Outer handle (page 37) Rear bezel (page 42) Top case (page 47)

  • Page 43: Rear Bezel

    Rear Bezel The rear bezel fastens to the rear of the projector and surrounds the I/O ports. The I/O panel label adheres to the outside of the rear bezel. The rear IR lens fastens to the inside of the rear bezel. If you replace the rear bezel, you need a replacement I/O panel label.
  • Page 44 Assembly Notes • When you install a new rear bezel, affix the new I/O panel label to the outside of the bezel. • Torque the two M3x8 Torx screws to 6 in/lbs (.68 Nm) SP7205 Service Manual...

  • Page 45: Safety Switch

    Safety Switch The safety switch interrupts power output from the power supply when the lamp door is removed from the projector. It is located on the front side of the chassis in the lamp housing. A thermal switch mounted near the safety switch monitors temperature in the projector lamp housing and cancels power supply output if the temperature rises too high.
  • Page 46 • Torque the M3x6 Torx Plastite screw to 3 in/lbs (.34 Nm). • After you install the safety switch, route the cable through the eye on the chassis. Connect the cable to J3 on the power supply. SP7205 Service Manual...

  • Page 47: Top Case

    Top Case The top case covers the top half of the half of the projector. Once you remove the top case, you have access to FRUs inside the projector. When you replace the top case, you need to adhere a new nameplate to the top case.
  • Page 48 Unplug the lamp blower contact ECA cable and the speaker cable from their connectors on the controller ECA. Then disconnect the keypad cable from the ZIF connector on the controller ECA. If you are going to replace the top case with a new one, remove the elevator button. To do this, use a small flat blade screwdriver to depress the retainer tab on the side of the elevator button.

  • Page 49: Troubleshooting

    Troubleshooting You use the Troubleshooting section to diagnose problems with the projector. In this section, you will find troubleshooting flowcharts for a variety of symptoms. Each flowchart leads you through a series of steps that will ultimately result in a solution. The solutions begin with the most simple and progress to the most complex.

  • Page 50: Power And Start-Up Problems

    Power and Start-up Problems The SP7205 communicates its power status via an LED located on the keypad. When this status LED is green, you know that the projector is working properly. When the status LED is solid red or flashing red, you know there are lamp, power or startup problems.
  • Page 51 Power Diagnostics, part 1 Plug the projector into a good power source with a known good power cord. This is the normal condition. No, the fans No, the fans Confirm that the did not Do the fans run started but keypad cable is start and briefly and the...
  • Page 52 Power Diagnostics, part 2 Note A solid green LED Press the Power button on the keypad means the projector This assumes you have plugged the is either waiting for power cord in and that the LED is solid a command or is green.
  • Page 53 Power Diagnostics, Error Codes Interpret red LED behavior Is the LED steady or flashing? Steady Flashing Red LED flashes have 2-second intervals An internal error occurred that between series of the projector cannot identify. What is the flashes. For example, Diagnose the error.
  • Page 54 LED flashes single red The lamp won't strike after five attempts. The status LED flashes a repeated red single -flash sequence. Ensure that the lamp door is present and shut. Can you hear the Replace safety safety switch open switch. and close? (page 45) Verify the repair by...
  • Page 55 LED repeats 3 flash sequence The lamp was operating but shut down . Fans are running. The status LED flashes a repeated red three-flash sequence. The top of the lamp module includes three contacts that must align with three Reinstall the lamp, matching contacts inside the projector.
  • Page 56 LED repeats 5 flash sequence This is a thermal problem . If Projector shuts down after detecting high temperature a fan isn't running it causes condition. LED flashes in repeated five -flash sequence. a power up problem because fans have a sensor line that prevents the projector from properly starting up.
  • Page 57 LED solid red LED solid red. Fans may or may not be running . Power supply Replace the power supply. voltages good? (page 39) (except lamp enable) (page 59) When you press the Power button, you should hear the brief high - pitched sound of the color wheel Is the Reseat color wheel cable.

  • Page 58: Image Problems

    Image Problems The image is not correct. The projector starts and runs normally . The menus are accessible . The lamp is lit. Flash the projector with the latest software. Select Factory Reset from Confirm that all image the Settings>Service menu. adjustments are set to the factory defaults.

  • Page 59: Keypad Problems

    Keypad Problems Keypad does not respond to key presses Does the Replace the keypad ECA Replace the controller ECA. remote control (page 33) (page 21) work? There are IR lenses on all four sides of the projector. Make sure you try the remote through at least two lenses.

  • Page 60: Remote Problems

    Remote Problems Infrared remote problem Use known good batteries in the remote. Does the remote work? Replace the remote. Does the remote work? Aim the remote at each of the IR receivers on the projector . There are IR receivers on all four sides of the projector . Issue a remote command to each receiver.

  • Page 61: Audio Problems

    Audio Problems No audio or sound is scratchy or distorted . Make sure the speaker cable is connected to the controller ECA. Replace the controller ECA. Is there sound? (page 21) Replace the top case. (page 47) But note: A shorted speaker can damage the stereo Is there sound audio amp on the controller ECA .

  • Page 62: Block Diagram

    Block Diagram SP7205 Service Manual...

  • Page 63: Check Controller Voltages

    Check Controller Voltages To check voltages, you need to power up the projector with the top case removed. See page 64 for instructions on how to do this. SP7205 Service Manual...

  • Page 64: Power Up With Top Case Removed To Check Fans And Voltages

    Power Up with Top Case Removed to Check Fans and Voltages You can check the three fans and the lamp blower by removing only the top case from the projector. Once the top case is removed, you can power up the projector and check internal voltages or verify whether the fans operate.
  • Page 65 Use black vinyl or other insulating tape to temporarily attach the lamp blower contact ECA to the lamp module. The lamp blower must receive power for the projector to start. Ensure that the contacts align properly. Connect the lamp blower contact ECA cable to the controller ECA at J504. Use a compatible remote control to power up the projector.
  • Page 66 To verify that a fan or blower is bad, unplug the connector for the suspect unit, then plug in a known good fan or blower. If the lamp blower fails to operate, replace the lamp module (page 35). If one of the fans fails to operate, remove the fan assembly and replace the defective fan (page 26).

  • Page 67: Check The Color Wheel And Reseat The Cable

    Check the Color Wheel and Reseat the Cable If the color wheel cable is not properly seated in its ZIF connector, the color wheel will not start when the Power button is pressed. When the color wheel does not spin, there is no lamp enable signal, and the lamp will not strike.
  • Page 68 If the color wheel is not spinning, check and reseat the color wheel cable connection. To reseat the cable, open the ZIF connector, and pull the cable out. Re-insert the cable fully, and then close the ZIF connector. SP7205 Service Manual...

  • Page 69: Check The Thermal Switch

    Check the Thermal Switch The thermal switch is designed to open when the temperature inside the projector gets too high. When the switch opens, the power supply shuts down, turning the projector off. When the projector shuts down after operating for a few minutes or when the lamp fails to strike after repeated attempts at startup, you need to check the thermal switch operation.

  • Page 70: Parts Lists

    Parts Lists Component Parts Exploded View NOTE The exploded view below shows the available parts for the SP7200. The parts in the SP7205 look identical; however, not every part is available as an FRU. Be sure to check the parts list to confirm a specific part is available.

  • Page 71: Case Parts Exploded View

    Case Parts Exploded View NOTE The exploded view below shows the available parts for the SP7200. The parts in the SP7205 look identical; however, not every part is available as an FRU. Be sure to check the parts list to confirm a specific part is available.

  • Page 72: Replaceable Parts

    Part Name Part Number Parts pricing list part name Nameplate 020-1591-xx Label top, InFocus IO Panel Label 020-1599-xx Label, I/O panel, Nighthawk Certification Label 020-2058-xx Label, Cert., SP-7205, Malasia...

  • Page 73: Fastener Kit Contents

    Fastener Kit Contents Fastener Quantity Fastens #4-40 Jack Screws I/O shield to controller ECA M3x8 Torx T-10 Plastite Keypad to top case M3x8 Torx T-10 Power supply, controller ECA, chassis M2x8 Torx T-10 Safety switch to chassis M4x10 Torx T-10 Conepoint Top and bottom cases M3x10 Torx T-10 Lamp connector retainer to chassis...

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