Read Sharp PG-M20S Handy Guide online
Replacing the DMD Chip
Version 1.4
Issue 04/2006
Issue 04/2006
34
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
Replacing the DMD Chip
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 Fig1, release 2
screws on mirror adjusting plate and
move that plate to adjust illumination
area of 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 Fig1, 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.
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.
Voltage ranking system with the switch switches on formatter PWB
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