PG-M20S (serv.man8). Removing of major parts - Sharp Projector Service Manual (repair manual)

pg-m20s (serv.man8) service manual
Model
PG-M20S (serv.man8)
Pages
6
Size
315.02 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Removing of major parts
File
pg-m20s-sm8.pdf
Date

Read Sharp PG-M20S (serv.man8) Service Manual online

13
PG-M20S
PG-M20X
REMOVING OF MAJOR PARTS
1. Removing the top panel
1-1. Detach the terminal block cover.
1-2. Remove the five lock screws from the top panel.
1-3. Press the right side of the bottom body to undo the hook.
1-4. Press the left side of the bottom body to undo the hook.
1-5. Press the front of the bottom body to undo the hook. Get the top panel loose from the bottom body.
1-6. Slightly raise the front of the top panel and disconnect the speaker connector.
2. Removing the PC I/F PWB and cooling fan
2-1. Disconnect the connector.
2-2. Remove the three lock screws from the PC I/F PWB and then the two hex support screws.
2-3. Disconnect the connector and take out the cooling fan.
Top panel
Terminal block cover
1-2
1-1
1-2
1-2
1-2
1-6
1-2
1-5
1-4
1-3
2-2
2-1
PC I/F PWB unit
2-3
2-3
Cooling fan
2-2
14
PG-M20S
PG-M20X
3. Removing the operation PWB
3-1. Remove the two lock screws from the operation PWB and slightly raise this PWB.
3-2. Disconnect the connectors.
4. Removing the optical mechanism
4-1. Remove the two lock screws from the lamp socket.
4-2. Raise the two lamp socket lead fixtures.
4-3. Disconnect the connectors.
4-4. Remove the six lock screws from the optical mechanism.
3-2
3-1
3-1
Operation PWB unit
4-4
4-3
4-1
Optical mechanism
4-2
15
PG-M20S
PG-M20X
5. Removing the other PWBs
5-1. Disconnect the connectors.
5-2. Remove the four lock screws from the power PWB.
5-3. Remove the lock screw from the ballast PWB unit.
5-4. Remove the three hex support screws from the input PWB.
5-5. Remove the lock screw from the terminal block cover.
5-6. Remove the three lock screws from the PFC PWB.
5-3
Bottom body
Ballast PWB unit
5-6
5-2
5-1
5-1
5-1
PFC PWB unit
Power PWB unit
Input PWB unit
5-4
5-5
16
PG-M20S
PG-M20X
6. Removing the formatter PWB
6-1. Disconnect the connector.
6-2. Remove the two lock screws from the heat sink.
6-3. Remove the four lock screws from the backer plate assembly, and detach the formatter PWB.
Note: The DMD (Digital Micromirror Device) unit is easily affected by static electricity. In handling this unit, be sure
to wear a wristband or take other anti-static measure.
6-2
6-1
6-3
Formatter PWB unit
Backer plate assembly
DMD (Digital Micromirror 
Device) unit
Heat sink
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.
Formatter PWB unit
Backer plate assembly
DMD (Digital Micromirror 
Device) chip
+Outer Frame
+C-spring
Heat sink
Prism surface
Mirror adjusting plate
Fig.1
Shade
Page of 6

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Here you can read online and download Sharp PG-M20S (serv.man8) Service Manual in PDF. PG-M20S (serv.man8) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp PG-M20S (serv.man8) Projector. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.