Assembly Notes

Ensure that the ground spring is in proper position on the chassis to provide ground continuity to the optical engine. Place the chassis into the projector, then slide the chassis forward to engage the ground spring against the bottom side of the DMD heat shield on the optical engine. Press down on the chassis to position it over the two 15-pin D-sub connectors on the I O panel. Replace the four jack screws and torque them to 2 in-lbs (.226 Nm). Replace and tighten the seven M3x10 Plastite...

Remove and Replace the Bottom EMI Shield

The bottom EMI shield (330-0965-xx) lies in the bottom case. It provides ground continuity between the optical engine and the chassis. 1. Remove the following items Lamp module (page 42) Focus ring (page 30) Zoom ring (page 30) Front bezel (page 32) Rear bezel (page 49) Top case (page 52) Ballast power supply ECA (page 6) Chassis (page 12) Controller ECA (page 19) Color wheel shield (page 17) Optical engine (page 24) 2. Lift the bottom EMI shield away from the bottom case.

Remove and Replace the Chassis

The metal chassis (330-0963-xx) provides the necessary rigidity for the projector's internal components without adding much overall weight. The ballast power supply ECA fastens to the chassis. The ground spring (321-0218-xx) attaches to the chassis and provides ground continuity to the optical engine. The ballast power supply insulator (329-0433-xx) also fastens to the chassis. It provides electrical insulation between the chassis and components on the ECA. Two retainer studs (340-1115-xx)...

Remove and Replace the Focus and Zoom Rings

The focus ring (340-1117-xx) fits around the front of the projection lens. The zoom ring (340-1116-xx) is behind the focus ring. The lens cap (505-1247-xx) 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. Three retainer tabs inside the zoom ring engage the outside of the lens. Three retainer tabs on the focus ring engage the inner lens barrel. 1. Place the projector right side up...

Remove and Replace the IO ECA

The I O ECA (510-1800-xx) contains the connectors for interfacing the projector with external devices. Ribbon cables carry the I O signals into and out of the controller ECA where all signal processing takes place. The I O ECA is located at the backside of the projector behind the controller ECA 1. Remove the following items Lamp module (page 42) Focus ring (page 30) Zoom ring (page 30) Front bezel (page 32) Rear bezel (page 49) Top case (page 52) Ballast power supply ECA (page 6) Chassis (page...

Remove and Replace the Io Emi Shield

The I O EMI shield (330-0964-xx) fits over the I O connectors on the rear of the I O ECA. The shield lies behind the chassis. The I O EMI shield and chassis fasten to the I O ECA with four jack screws. 1. Remove the following items Lamp module (see page 42) Focus ring (see page 30) Zoom ring (see page 30) Front bezel (see page 32) Rear bezel (see page 49) Top case (see page 52) Ballast power supply ECA (see page 6) Chassis (see page 12) 2. Pull the I O EMI shield off of the connectors on the I...

Remove and Replace the Lamphouse

The lamphouse (505-1514-xx) fastens to the bottom case. It provides an alignment mechanism for the lamp module to ensure precise beam focus into the optical path. The lamphouse includes the safety switch and thermal switch. Two cooling fans fasten to the rear side of the lamphouse. If you need to replace a fan, refer to Remove and Replace the Cooling Fans on page 27. If you're removing the lamphouse to access another FRU, you don't need to remove the fans. 1. Remove the following items Lamp...

Remove the Ballast Power Supply Insulator

Place the chassis upside down on the work surface. 2. Squeeze the tabs on each of the two retainer studs that secure the ballast power supply insulator to the chassis. Remove the studs from the chassis. 3. Turn the chassis over. Then lift the insulator away from the chassis. Assembly Notes Place the triangular hole in the ballast power supply insulator over the mounting tab on the chassis. Then lay the insulator flat against the chassis. Insert the two retainer studs into the chassis slots....

Remove the Chassis and Ground Spring

Remove the seven M3x10 Plastite Phillips screws that fasten the chassis to the bottom case. You need to lift the ballast power supply insulator to reach the two screws near the center of the chassis. 3. Remove the four 4-40 jack screws that fasten the chassis around the 15-pin D-sub connectors on the I O panel. 4. Lift the chassis near the rear of the projector, then slide the chassis rearward to disengage the ground spring from the bottom side of the DMD heat shield on the optical engine. 5....

Remove the Elevator Shaft

Lamp module (page 42) Focus ring (page 30) Zoom ring (page 30) Front bezel (page 32) Rear bezel (page 22) Top case (page 52) 2. Fully extend the elevator shaft. Then use a small flat-blade screwdriver to gently depress the stop on the elevator shaft. This allows the elevator shaft to pass through the housing and out of the bottom case. 3. Depress the elevator actuator as you pull the elevator shaft out from the bottom side of the projector.

Remove the Front Bezel

Focus ring (page 30) Zoom ring (page 30) 2. Place the projector upside down on a soft work surface. 3. Remove the two M3x10 Plastite Phillips screws that fasten the front bezel to the bottom case. 4. Turn the projector right side up on the work surface. Gently pull the top of the front bezel away from the projector. The two tabs and slotted receiver on the front bezel disengage from the projector. You may need to use a small flat-blade screwdriver to depress the slotted receivers on the top...

Remove and Replace the Leveling Foot

The leveling foot (340-1118-xx) consists of the leveling foot and shaft, and a retainer. Rotating the leveling foot extends or retracts it in the bottom case. The shaft threads through the bottom case from the outside. A circular retainer stops the leveling foot at its maximum extension. 1. Remove the following items Lamp module (page 42) Focus ring (page 30) Zoom ring (page 30) Front bezel (page 32) Rear bezel (page 49) Top case (page 52) 2. Rotate the leveling foot to fully retract it in the...

Remove and Replace the Rear Bezel

The rear bezel (505-1510-xx) fastens to the rear of the projector and surrounds the I O ports. The I O panel label (020-1775-xx) adheres to the outside of the rear bezel. If you replace the rear bezel, you need a replacement I O panel label. You cannot remove the label from the rear bezel. 1. Place the projector upside down on a soft work surface. 2. Remove the two M3x10 Plastite Phillips screws that fasten the rear bezel to the bottom case. 3. Remove the M2.6x10 Plastite Phillips screw that...

Remove and Replace the Top Case

The top case (505-1508-xx) 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 (020-1118-xx) to the top case. 1. Remove the following items Lamp module (see page 42) Focus ring (see page 30) Zoom ring (see page 30) Front bezel (see page 32) Rear bezel (see page 49) 2. Place the projector upside down on a soft work surface. Remove the four M4x18 Plastite...

Remove and Replace the Speaker

The speaker (526-0151-xx) fastens to the top case. The speaker grill (330-0967-xx) protects the speaker from damage by objects that could pass through the holes in the top case. 1. Remove the following items Lamp module (page 42) Focus ring (page 30) Zoom ring (page 30) Front bezel (page 32) Rear bezel (page 49) Top case (page 52) 2. Place the top case face down on a soft work surface. 3. Remove the three M3x10 Plastite Phillips screws that fasten the speaker to the top case. Then lift the...

Required equipment

Composite video DVD player with S-video capability Make sure the video player has an S-video Out port and cables. The player should also have a Composite video output port (RCA). InFocus strongly suggests you use a DVD player to test the video quality. DVD players 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...

Check fan operation

You can visually check the operation of the fans to see if they both work properly. Check the fans if the projector exhibits symptoms of overheating or if the red status LED indicates that a thermal issue is present. To check the fans, first prepare for projector power up with the top case removed (page 80). Then follow these steps 1. Connect the projector to AC power. CAUTION When you start the projector, there is voltage present on the controller ECA and power supply. Be very careful where...

Power and Startup Problems

Projector Ballast Repair

The projector communicates its 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. The frequency with which the status indicator blinks red indicates one of several error codes. These error codes provide crucial information about projector malfunctions. Go to the next page to begin the power diagnosis sequence. Below is a...

Remove and Replace the Color Wheel Shield

Infocus Color Wheel Repair

The color wheel shield 330-0968-xx fastens to the lamphouse and the optical engine. The shield provides protection to the fragile color wheel and bracing for the lamphouse which is otherwise open to the optical engine. 1. Remove the following items Lamp module page 42 Focus ring page 30 Zoom ring page 30 Front bezel page 32 Rear bezel page 49 Top case page 52 2. Remove the two M3x10 Plastite Phillips screws that fasten the color wheel shield to the top of the lamphouse and the optical engine....

Prepare for Power Up with Top Case Removed

Infocus Projectors Diagram

You can remove the top case and power up the projector to check fan or thermal switch operation. You also do this to check internal voltages and signals, which may require additional projector disassembly. Here's how to prepare the projector for power up with the top case removed. 1. Remove the top case page 52 NOTE The lamp must be in place and connected to start the projector with the top case removed. 2. Use vinyl electrical tape or other non-conductive means to hold the safety switch...

Remove and Replace Lamp Module

Infocus Projectors Diagram

The lamp door 505-1513-xx fits over the lamp cavity in the projector. A pin on the lamp door closes the safety switch on top of the lamphouse when the door is shut. The lamp module SP-LAMP-009 consists of a metal housing and enclosed reflector assembly and arc tube. Air flow from the 80 mm fan passes through openings on two sides of the lamp module. Screens over these openings provide air filtration and contain quartz fragments in the event of lamp rupture. CAUTION The lamp module gets very hot...

Check Controller Voltages

Eca Infocus

To check voltages, you need to power up the projector with the top case removed. See page 80 for instructions on how to do this. Check Controller ECA Voltages and Signals 1. Prepare to power up the projector with the top case removed. page 80 2. Remove the chassis. page 12 3. Position the ballast power supply ECA near enough to the projector to connect the controller power supply cable from the controller ECA. You can do this if you turn the ballast power supply ECA over and connect it to the...

Remove and Replace the Keypad

Eca Infocus

The keypad fastens to the inside of the top case. The keypad consists of the keypad ECA 510-1774-xx , the key set 505-1515-xx , and the LED cover 340-1123-xx. The keypad ECA permanently connects to the front IR receiver ECA. A ribbon cable extends between them. The LED cover nests in the recess between the keypad ECA and the top case. It focuses light from the power LED on the keypad ECA through a hole in the top case. 1. Remove the following items Lamp module page 42 Focus ring page 30 Zoom...

Check Io Eca Voltages and Signals

Diagram Infocus

Prepare for projector power up with the top case removed. page 80 2. Remove the chassis. page 12 3. Position the ballast power supply ECA in or near enough to the projector to connect the controller power supply cable from the controller ECA. Be sure that there is enough space above the I O ECA to allow use of measurement probes. 4. Connect the lamp to the lamp cable connector at the side of the lamphouse. Make sure the connector fully engages the connector on the lamp module. 5. Position...

Perform the following tests

Akai Dvd Player Akd

Connect AC power, and turn the unit on. Verify that the proper splash logo screen appears. Verify image quality. Adjust the projector so that the image is square. Make sure the lens is at a 90 angle to the wall. Verify that the elevator and leveling foot are functional. Verify that the focus and zoom rings operate properly. Verify cosmetics. 1. Press the Source button on the keypad to select a video source. 2. Connect the component video adapter cable and to the projector. 3. Disconnect any...

Remove and Replace the Cooling Fans

Two fans provide all the cooling air necessary for the projector. The 80mm fan 526-0152-xx provides primary cooling for the lamp module and lamphouse. The 60mm fan 526-0153-xx cools the color wheel and optical engine. Both fans draw cool air across the electronic components in the projector and exhaust heated air through the front bezel. The fans fasten to the rear side of the lamphouse. 1. Remove the following items Lamp module page 42 Focus ring page 30 Zoom ring page 30 Front bezel page 32...

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, check the thermal switch. First, power up the projector with the top off page 80 . Let the projector run until it shuts down. Measure resistance across the terminals at the thermal switch. If...

Remove and Replace the Controller ECA

Sanyo Projectors Thermo Switch

The controller ECA 510-1773-xx mounts beneath the metal chassis and ballast power supply ECA and behind the optical engine. It fastens to the bottom case with seven screws and connects to the DMD ECA through two connectors at the front side of the controller. A new controller ECA includes the keypad and ballast power supply cables. These cables permanently connect to the controller ECA. Do not attempt to remove them. WARNING Be sure to take proper ESD precautions while working near the...

Remove and Replace the Optical Engine

Infocus Optical Engine

The optical engine 505-1506-xx fastens to the bottom case. It produces the projected image by directing focused light from the lamp module through the color wheel and onto the Digital Micromirror Device DMD . The optical engine contains a formatter ECA that processes the image signal from the controller ECA before the the signal is delivered to the DMD. It also comprises other elements in the light path, including the CAUTION The color wheel is unprotected on the side of the optical engine....

Check the Color Wheel and Reseat the Cable

Eca Infocus

If the color wheel cable is not properly seated in its connector, the color wheel will not start when the projector powers up. When the color wheel does not spin, there is no lamp enable signal, and the lamp will not strike. Normally, you hear the brief high-pitched sound when the color wheel spins up to speed. If you don't hear the sound, or if you are not sure, you can do a visual check to confirm the color wheel operation. If the color wheel does not spin, the first item to check is the...

Table of Contents

Table of Safety Important Important Safety Parts Removable Parts Remove and Replace the Ballast Power Supply Remove and Replace the Bottom EMI Remove and Replace the Remove and Replace the Color Wheel Remove and Replace the Controller Remove and Replace the Remove and Replace the Optical Remove and Replace the Cooling Remove and Replace the Focus and Zoom Remove and Replace the Front Remove and Replace the I O Remove and Replace the Remove and Replace Lamp Remove and Replace the Remove and...