DOWNLOAD Sharp PG-C20XE (serv.man5) Service Manual ↓ Size: 887.77 KB | Pages: 30 in PDF or view online for FREE

5-1. Remove the lock screw (yellow or silver) from the ballast cover. Peel the Teflon tape that secures the lead

wires on the ballast cover. Detach the ballast cover.

5-2. Remove the three lock screws (yellow or silver) from the ballast PWB unit. Disconnect the connectors from

the power PWB unit and detach the ballast PWB unit.

5-3. Remove the two lock screws (silver) from the cooling fan/power PWB unit and detach the cooling fan unit.
5-4. Remove the three lock screws (silver) from the AC inlet/power PWB unit. Disconnect the AC select switch

connectors and the power PWB connector (EA). Detach the AC inlet PWB unit, power PWB unit and power
PWB unit cover.

5-5. Remove the two lock screws (yellow) from the AC select switch and detach the switch, slide and spring.

Ballast cover

Note: Be careful when connecting this 
connector close to the live part of the 
ballast PWB unit.

Ballast PWB

Teflon tape

AC inlet PWB unit

Cooling fan

Power PWB unit

Power PWB unit cover

(EA)

AC select switch

5-1

5-1

5-2

5-4

5-5

5-3

B

5-4

A

(

)

Slide

Spring

❋ 

Keep the high-voltage leads ( A  and  B  in
the figure) of the lamp socket on the
ballast PWB out of contact with the cooling
fan. To do this, lay the lead  B  behind the
lead  A  and dress them up in the cooling
fan holder notch.

6-1. Remove the two lock screws (yellow) and the two supports from the connecting terminals/3-dimensional Y/

C separation PWB unit assembly. Slide the PWB unit and draw the terminals out of the bottom plate.

6-2. Disconnect the connector (EA) from the connecting terminals PWB unit.

7-1. Remove the one lock screw (yellow) from the center duct and detach the center duct.
7-2. Remove the one lock screw (yellow) from the PBS fan and detach the angle and the PBS fan.

Connecting terminals/
3-dimensional 
Y/C separation PWB 
unit assembly

6-1

7-1

6-2

7-2

Center duct

(EA)

PBS fan

Angle

1

Press KEYSTONE 

'

 and

KEYSTONE 

"

 on the projector at

the same time.

2

Press INPUT and AUTO SYNC on
the projector at the same time.

3

Press AUTO SYNC and MENU on
the projector at the same time.

Plug the power cord into the AC
socket of the projector.

LAMP 0000H

LAMP 0000H

 is

displayed, indicating that
the lamp timer is reset.

INPUT

BACK

ENTER

MENU

AUTO SYNC

1

3

2

Intense light hazard. Do not attempt to look into the aper ture and lens while the projector is operating.

As the usage environment can vary significantly, the projector lamp may not operate for 1,000 hours.
"1,000 hours" above indicates average life span and should be used for r eference only. This is different than the warranty period.
For safety, the power will not be tur ned on from the fourth times when turning on the power without changing the lamp after use  for 1,000
hours.

TEMPERATURE
WARNING
indicator

The internal
temperature is
abnormally high.

Blocked air intake.

Relocate the projector to an area with proper
ventilation.

Clean the filter.

Clogged air filter.

Cooling fan br eakdown.
Internal circuit failure.

Take the projector to your nearest Authorized
Sharp Industrial LCD Products Dealer or
Service Center for repair.

Cooling down.

Wait until the indicator stops flashing and
turns off.

The indicator flashes in
red.

LAMP
REPLACEMENT
indicator

The lamp does not
illuminate.

Burnt-out lamp.
Lamp cir cuit failure.

Carefully replace the lamp. 
Take the projector to your nearest Authorized
Sharp Industrial LCD Products Dealer or
Service Center for repair.

The lamp requires
replacement.

Lamp has been used for
over 900 hours.

The filter cover is open.

Securely install the filter cover.

The indicator flashes in
red when the projector
is on.

POWER indicator

●

Resetting the total lamp timer
When replacing the lamp, reset the total lamp timer in the procedure below.

●

Light source (lamp)
The lamp used for light source has a service life of about 1,000 hours. If the total operating time exceeds 900
hours, replace the lamp with new one (separately sold) as soon as possible. However, if the image becomes
dim or the colors get less crisp even before the total operating time does not exceeds 900 hours, also replace
the lamp. The lamp's total operating time can be checked on the screen. If noticeable color irregularities are
found after replacing the lamp, make the color irregularity correction on page 28.

●

Replacing the air filter
Just when replacing the lamp, replace also the air filter with the one that comes with the lamp replacement kit.

1

2

1

2

Unplug the power cord
from the AC socket.

Turn over the projector.
Press the tab and remove
the filter cover in the direc-
tion of the arrow.

1

Remove the air filter
stopper.

2

Remove the air filter.

1

 Put the new air filter

into position.

2

 Put the air filter stopper

back into position.

5.Replace the filter cover.
Insert the tab on the end of
the filter cover into the filter
cover opening and press
the filter cover into
position.

LCD(G)

Green

Blue

Red

Green/Blue

AL-coated mirror R

G reflector

R reflector

Relay lens 1

Mirror R, G, B

Mirror R, G, B

AL-coated mirror R,G, B

Relay lens 3

UV absorbing glass

Relay lens 2

Input polarizer G

Condencer lens G

Projection Lens

Input polarizer R

Fly-eye lens

 (Input)

Fly-eye lens (Output)

Condencer lens R

LCD(B)

LCD(R)

Input polarizer B

Cross dichroic prism

PBS

Light source

(Lamp)