SHARP XV-Z90U - DT200 - DLP PROJECTOR - DISASSEMBLE PROCEDURE

REMOVING THE SWIVEL STAND AND LAMP BOX  [Click on image to Enlarge]

• Remove lock lever, and remove the swivel stand.
• Loosen 1 scrwew, and remove the lamp door .
• Loosen 3 screws, and take out a lamp box.

REMOVING THE SIDE COVER AND TOP BODY

• Push front end of the side cover from bottom, and remove a hook.
• Pull the side cover in the direction of the arrow, and remove it.
• Remove 6 screws and 1 connector, and remove a top body.

REMOVING MAIN PWB

• Remove 6 screws.
• Remove each connector on the main PWB.

REMOVING POWER UNIT

• Remove each connector on the power PWB.
• Remove 2 screws, and remove the power unit fan.
• Remove 3 screws, and take out the power unit assembly.
• Remove 4 screws, and remove power shield.

REMOVING BALLAST UNIT

• Remove lens shift knob.
• Remove 2 screws, and remove the ballast socket.
• Remove 3 screws, and remove the ballast unit.
• Remove shielding plate, and remove 2 connectors on the ballast PWB.
• Remove 2 screws, and remove ballast PWB.

REMOVING OPTIC MECHANISM

• Remove a connector.
• Remove 6 screws, and remove the optic mechanism unit.

REMOVING EACH OTHER PWBs

• Remove 1 screw, and remove front R/C receiver PWB unit .
• Remove 1 screw, and remove LED PWB unit.
• Remove 1 screw, and remove a terminal-2 PWB unit.
• Remove 2 screws, and remove an AC socket.
• Remove 1 screw, and remove rear R/C receiver PWB unit.
• Remove 1 screw, and remove DVI-TAN1 PWB unit.

REMOVING THE FORMATTER PWB

• Remove 1 screws, and remove the angle.
• Remove 2 screws, and remove the blower fan unit.
• Remove 2 screws, and remove the heat sink.
• Remove 4 screws and two connectors, and remove the formatter PWB.

• Precautions in replacing the DMD chip

Note: Be careful not to allow dust and fingerprint on the cover glass of DMD chip and prism surface of optical engine.

1.When you fix 4screws of backer plate assembly, press backer plate to formatter PWB and fix by cross multiply step by step.

2.If something shade appears on the projection screen like Fig, release 2 screws on mirror adjusting plate and move that plate to adjust illumination area of DMD chip.

• Precautions in setting up the DMD (Digital Micromirror Device) unit

Before connecting the formatter PWB to the optical engine, take the following steps. Look at the voltage rank marking that is on the DMD itself. Referring to this marking, set the DIP switches on the formatter PWB. And connect this PWB to the optical engine. Wrong settings will adversely affect the system performance.