Sharp Projector Pg C20xu User Manual

							E-40
Maintenance &
Troubleshooting
Replacing the Projection Lamp
ON/OFF
or
Ta b
46Remove the air filter.5Replace the air filter.
13Turn off the power.2Disconnect the power
cord.
Unplug the power cord from the
AC socket.
Remove the filter cover.
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. 1Remove the air filter stopper.
2Remove the air filter.
Turn over the projector. Press the
tab and remove the filter cover in
the direction of the arrow.Press ON/OFFon the projector
orPOWER on the remote
control. Wait until the cooling
fan stops.
1Put the new air filter into
position.
2Put the air filter stopper back
into position.
 


 

   
 

Ta b
It is recommended that the lamp be replaced after approximately 900 cumulative hours of use or when you notice
a significant deterioration of the picture and color quality. Carefully change the lamp by following the steps below.
If the new lamp does not light after replacement, take your projector to the nearest Authorized Sharp Industrial
LCD Products Dealer or Service Center for repair. Purchase a replacement lamp unit (lamp/cage module) of the
current type BQC-PGC20X//1 from your nearest Authorized Sharp Industrial LCD Products Dealer or Service
Center. Then carefully change the lamp by following the instructions below. If you wish, you may have the lamp
replaced at your nearest Authorized Sharp Industrial LCD Products Dealer or Service Center.
IMPORTANT NOTE TO U.S. CUSTOMERS:
The lamp included with this projector is backed by a 90-day parts and labor limited warranty. All service of this
projector under warranty, including lamp replacement, must be obtained through an Authorized Sharp Industrial LCD
Products Dealer or Service Center. For the name of the nearest Authorized Sharp Industrial LCD Products Dealer or
Service Center, please call toll-free: 1-888-GO-SHARP (1-888-467-4277).
U.S.A. ONLY
Removing and installing the lamp unit
CAUTION
• Be sure to remove the lamp cage by the handle. Be sure not to touch the glass surface of the lamp cage or the inside of
the projector.
• To avoid injury to yourself and damage to the lamp, be sure to carefully follow the steps below.
• Be sure to change the air filter during lamp replacement. The air filter comes packaged with the lamp unit.
CAUTION:
•Potential hazard of glass particles if lamp ruptures. Please have Authorized Sharp Industrial LCD
Products Dealer or Service Center replace lamp if rupture occurs.
•Do not remove the lamp cage directly after operation of the projector. The lamp may be extremely
hot. Wait at least one hour after the power cord is disconnected to allow the surface of the lamp cage
to fully cool before removing the lamp cage. 
						

							E-41
Maintenance &
Troubleshooting
Replacing the Projection Lamp
7Remove the lamp cage cover.
Turn over the projector and loosen the user service
screw that secures the lamp cage cover. Then lift
open the cover in the direction of the arrow.
910Insert the new lamp cage.Attach the lamp cage cover.
Slide the lamp cage cover in the direction of the
arrow. Then tighten the user service screw. Press the lamp cage firmly into the lamp cage
compartment. Fasten the securing screws.
8Remove the lamp cage.
Loosen the securing screws on the lamp cage.
Hold the lamp cage by the handle and pull it
towards you.
1Connect the power
cord.Reset the lamp timer.
1Press KEYSTONE∂ and
KEYSTONEƒ on the projector at
the same time.
2Press INPUT and AUTO SYNC on
the projector at the same time.
3Press AUTO SYNC and MENU on
the projector at the same time. Plug the power cord into the AC
socket of the projector.
Resetting the lamp timer
“LAMP 0000H” is
displayed, indicating that
the lamp timer is reset.
2
INPUT
BACK ENTER MENUAUTO SYNC
1
3 2
• Reset the lamp timer only after replacing the lamp. 
						

							E-42
Maintenance &
Troubleshooting
Using the Kensington Lock
This projector has a Kensington Security Standard
connector for use with a Kensington MicroSaver Security
System. Refer to the information that came with the
system for instructions on how to use it to secure the
projector.
Kensington Security
Standard connector
Check
• Projector power cord is not plugged into the wall outlet.
• The filter cover is not securely installed.
• Selected input is wrong. (See page 17.)
• Cables incorrectly connected to side and rear panels of the projector. (See pages 12–15.)
• Remote control batteries have run down. (See page 9.)
• Cables incorrectly connected to side and rear panels of the projector. (See pages 12–15.)
• “Contrast” and “Bright” adjustments are set to minimum position. (See page 27.)
• “Color” and “Tint” adjustments are not correct. (See page 27.)
• Adjust the focus. (See page 17.)
• Projection distance is too long or too short to allow for proper focus. (See page 18.)
• Cables incorrectly connected to side and rear panels of the projector. (See pages 12–15.)
• Volume is set to minimum. (See page 17.)
• If the picture is normal, the sound is due to cabinet shrinkage caused by temperature changes.
This will not affect operation or performance.
• Refer to “Lamp/Maintenance Indicators” on page 39.
• Adjust the “Phase” setting. (See page 29.)
• Set the resolution mode to 480P. (See page 36.) Problem
No picture and no sound.
Sound is heard but no picture
appears.
Color is faded or poor.
Picture is blurred.
Picture appears but no sound is
heard.
An unusual sound is occasionally
heard from the cabinet.
Maintenance indicator illuminates.
Picture noise appears.
480P images do not appear.
Troubleshooting 
						

							E-43
Appendix
Appendix
Attaching the Lens Cap
Put on the lens cap to prevent damage to the lens when transporting the projector. A lens cap strap is provided
to prevent the loss of the lens cap.
1Attach the lens cap
strap to the lens cap.2Attach the lens cap
strap to the projector.3Attach the lens cap to
the projector with the
lens cap eyelet facing
up.
CAUTION
• Do not lift or carry the projector by the lens or the lens cap as this may damage the lens.
• You can also use the end of a mechanical pencil or other pointed object to feed the lens cap strap through the openings. 
						

							E-44
Appendix
Connection Pin Assignments
COMPUTER INPUT 1 Port: 15-pin mini D-sub female connector
Computer Input
Analog
1. Video input (red)
2. Video input
(green/sync on green)
3. Video input (blue)
4. Not connected
5. Composite sync
6. GND (red)
7. GND (green/sync on green)
8. GND (blue)9. Not connected
10. Not connected
11. GND
12. Bi-directional data
13. Horizontal sync signal
14. Vertical sync signal
15. Data clock
1
155
6
11 10
Pin No. Signal Name I/O Reference
1 Not connected
2 RD Receive Data Input Connected to internal circuit
3 SD Send Data Output Connected to internal circuit
4 Not connected
5 SG Signal Ground Connected to internal circuit
6 Not connected
7 Not connected
8 Not connected
9 Not connected
Pin No. Signal Name I/O Reference
1 Not connected
2 RD Receive Data Input Connected to internal circuit
3 SD Send Data Output Connected to internal circuit
4 Not connected
5 SG Signal Ground Connected to internal circuit
6 Not connected
7 Not connected
8 Not connected
9 Not connected
RS-232C Terminal: 9-pin Mini DIN female connector
68
4 97
3
5
21
RS-232C Port: 9-pin D-sub male connector of the DIN-D-sub RS-232C cable
15
6
9 
						

							E-45
Appendix
PC control
A computer can be used to control the projector by connecting an RS-232C cable (null modem, cross type, sold
separately) to the projector. (See page 15 for connection.)
Communication conditions
Set the serial port settings of the computer to match that of the table.
Signal format: Conforms to RS-232C standard.
Baud rate: 9,600 bps
Data length: 8 bits
Parity bit: NON
Stop bit: 1 bit
Flow control: None
Basic format
Commands from the computer are sent in the following order: command, parameter, and return code. After the
projector processes the command from the computer, it sends a response code to the computer.
RS-232C Port Specifications
Return code (0DH)
C1    C2    C3   C4    P1    P2    P3    P4
Response code format
Normal response
O      KReturn code (0DH)
Problem response (Failure due to incorrect command/parameter or the other communication errors)
E      R      R
Return code (0DH) Command 4-digits
Parameter 4-digits
Command format
When more than one code is being sent, send each command only after the OK response code for the previous
command from the projector is verified.
• When using the computer control function of the projector, the projector operating status cannot be read to the computer.
Therefore, confirm the status by transmitting the display commands for each adjustment menu and checking the status with
the On-screen Display. If the projector receives a command other than a menu display command, it will execute the com-
mand without displaying the On-screen Display. 
						

							E-46
Appendix
CONTROL ITEMCOMMAND
C1
S
S
A
A
T
T
P
P
I
I
I
I
I
I
I
R
R
R
R
R
V
V
V
V
V
V
V
V
V
R
R
R
R
R
R
R
R
RP
P
P
P
H
H
O
O
R
R
V
V
C
M
M
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
AM
M
O
O
M
M
W
W
G
G
E
E
H
B
B
P
B
R
B
R
P
B
R
B
R
C
T
S
R
P
B
R
B
R
C
T
S
RD
D
W
W
D
D
R
R
B
B
D
D
K
K
K
I
R
D
E
E
I
R
D
E
E
O
I
H
E
I
R
D
E
E
O
I
H
E_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
__
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
_
*
*
*
*
_
*
*
_
_
*
*
*
*
_
*
*
_
__
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
_
*
*
*
*
_
*
*
_
_
*
*
*
*
_
*
*
_
_0
1
0
1
0
1
0
1
1
2
1
2
0
0
1
*
*
*
*
1
*
*
*
*
1
*
*
*
2
*
*
*
*
1
*
*
*
2640
480
480P
AUTO POWER OFF (OFF)
AUTO POWER OFF (ON)
POWER SAVE MODE OFF
POWER SAVE MODE ON
POWER OFF (STANDBY)
POWER ON
INPUT1 (RGB)
INPUT1 (COMPONENT)
INPUT2 (S-VIDEO)
INPUT3 (VIDEO)
INPUT CHECK
AV MUTE OFF
AV MUTE ON
CONTRAST (30 –30)
BRIGHT (30 –30)
RED (30 –30)
BLUE (30 –30)
RESET
CONTRAST (30 –30)
BRIGHT (30 –30)
RED (30 –30)
BLUE (30 –30)
RESET
COLOR (30 –30)
TINT (30 –30)
SHARPNESS (0 – 7)
RESET
CONTRAST (30 –30)
BRIGHT (30 –30)
RED (30 –30)
BLUE (30 –30)
RESET
COLOR (30 –30)
TINT (30 –30)
SHARPNESS (0 – 7)
RESETKEYSTONE
(127 –127) C2 C3 C4 P1 P2 P3 P4PARAMETER
CONTROL
CONTENTS
INPUT SWITCHING POWER SETTING AUTO POWER OFF
POWER SAVE MODE SPECIAL MODE
KEYSTONE
ADJUSTMENT AV MUTE
E KYS***
*VOLUME (00 – 60) VOLUME
ADJUSTMENTO VLA__*
*
AUTO SYNC START INPUT AUTO
SYNCHRONIZATIOND AJS___
1 INPUT CHECK
INPUT2(S-VIDEO)/
INPUT3(VIDEO)
IMAGE
ADJUSTMENT 1
INPUT1
(COMPONENT)
IMAGE
ADJUSTMENT 1
INPUT1
(COMPONENT)
IMAGE
ADJUSTMENT 2 INPUT2(S-VIDEO)/
INPUT3(VIDEO)
IMAGE
ADJUSTMENT 2INPUT1
(RGB)
IMAGE
ADJUSTMENTCONTROL ITEMCOMMAND
C1 C2 C3 C4 P1 P2 P3 P4PARAMETER
CONTROL
CONTENTS
M
M
M
M
M
M
M
M
I
I
M
M
M
M
M
M
M
M
M
M
M
G
G
G
G
G
G
G
G
G
R
R
R
R
R
R
R
R
I
I
I
IE
E
E
E
E
E
E
E
M
M
E
E
E
E
E
E
E
E
E
E
E
A
A
A
A
A
A
A
A
A
B
B
A
A
A
A
A
A
M
M
M
MS
S
S
S
S
S
S
S
B
B
L
L
L
L
L
L
L
L
L
L
L
M
M
M
M
M
M
M
M
M
S
S
S
S
S
S
S
S
R
R
I
IY
Y
Y
Y
Y
Y
Y
Y
G
G
A
A
A
A
A
A
A
A
A
A
A
R
R
R
V
V
V
V
V
V
R
R
V
V
V
R
R
R
E
E
N
N_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
__
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
__
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
1
1
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_1
2
3
4
5
6
7
8
3
4
1
2
3
4
5
6
7
8
9
0
1
1
2
3
1
2
3
1
2
3
1
2
1
2
3
1
2
3
0
1
0
1AUTO
PAL
NTSC 3.58
SECAM
NTSC 4.43
PAL (M)
PAL (N)
PAL (60 Hz)
BLUE
NONE
ENGLISH
DEUTSCH
ESPAÑOL
NEDERLANDS
FRANÇAIS
ITALIANO
SVENSKA
PORTUGUÊS
STANDARD
GAMMA1
GAMMA2
STANDARD
GAMMA1
GAMMA2
STANDARD
GAMMA1
GAMMA2
NORMAL
DOT BY DOT
NORMAL
STRETCH
BORDER
NORMAL
STRETCH
BORDER
REVERSE OFF
REVERSE ON
INVERT OFF
INVERT ON VIDEO
SYSTEM
SELECTION
BACKGROUND
SELECTION
INPUT1 (RGB)
RESIZE LANGUAGE
SELECTION
INPUT1
(RGB)
GAMMA
SELECTION
INPUT2(S-VIDEO)/
INPUT3(VIDEO)
GAMMA
SELECTION
INPUT2(S-VIDEO)/
INPUT3(VIDEO)
RESIZE
INPUT1
(COMPONENT)
RESIZE
SCREEN SETTING INPUT1
(COMPONENT)
GAMMA
SELECTION
RS-232C Port Specifications
Commands
EXAMPLE
• When “BRIGHT” of INPUT 1 (RGB) IMAGE ADJUSTMENT is set to 10.
→
←RABR 1 0_OK
Projector Computer
• If an underbar (_)  appears in the parameter column, enter a space. If an asterisk (*) appears, enter a value in the range
indicated in brackets under CONTROL CONTENTS. 
						

							E-47
Appendix
Horizontal Frequency: 15–80 kHz
Vertical Frequency: 43–85 Hz
Pixel Clock: 12–108 MHz
Compatible with sync on green and composite sync signals
SXGA (1,280 
 1,024) compatible in intelligent compression
Computer Compatibility Chart
• This projector may not be able to display images from notebook computers in simultaneous (CRT/LCD) mode. Should this
occur, turn off the LCD display on the notebook computer and output the display data in “CRT only” mode. Details on how
to change display modes can be found in your notebook computer’s operation manual.
• This projector can receive 640 
 350 VESA format VGA signals, however, “640
 400” will appear on the screen.
PC/
MAC/
WSHorizontal
Frequency
(kHz)Vertical
Frequency
(Hz)
VGA
PCPC
SVGA
XGAVESA
Standard

 


 








 


 
 






 Resolution
640
 350
1,152
 864
1,152
 882
1,280
1,024 720
 350
640
 400
720
 400
640
 480
800
 600
1,024
 768Display
Upscale
True 27.0 60
27.0 60
27.0 60
60 31.5 70
31.5 70
31.5
70
31.5
60
34.7
70
37.9
72
37.5
75
43.3
85
31.3 50
35.1 56
37.9 60
44.5 70
48.1 72
46.9 75
53.7 85



 
 31.5 70
37.9 85
37.9
27.085
37.9
85
26.2
50PC/
MAC/
WSHorizontal
Frequency
(kHz)Vertical
Frequency
(Hz) Resolution Display
Intelligent
Compression 55.0 60
67.5 75
65.9 72 54.8 60
64.0 60VESA
Standard
SXGA



MAC 16"
MAC 21"PC/
MAC 13"
PC/
MAC 19"640
 480
832
 624Upscale
Intelligent
Compression 35.0
1,152
 870
68.767
60.0 1,024
 768 VGA
SVGA
SXGA
 

XGA48.4 60
75
49.7 75
75 66.2 70
35.5 43
40.3 50
60.0 75
68.7 85 56.5 70
 48.4 60 
						

							E-48
Appendix
Specifications
Product type
Model
Video system
Display method
LCD panel
Lens
Projection lamp
Contrast ratio
Video input signal
S-video input signal
Horizontal resolution
Audio output
Computer RGB input signal
Pixel clock
Vertical frequency
Horizontal frequency
Computer control signal
Speaker system
Rated voltage
Input current
Rated frequency
Power consumption
Operating temperature
Storage temperature
Cabinet
I/R carrier frequency
Dimensions (approx.)
Weight (approx.)
Supplied accessories
Replacement partsLCD Projector
PG-C20XU
PAL/PAL 60/PAL-M/PAL-N/SECAM/NTSC 3.58/NTSC 4.43/DTV 480P
LCD panel 
 3, RGB optical shutter method
Panel size: 0.9 (13.9 [H] 
 18.5 [W] mm)
Display method: Translucent TN liquid crystal panel
Drive method: TFT (Thin Film Transistor) Active Matrix panel
No. of dots: 786,432 dots (1,024 [H] 
 768 [V])
1–1.2
 zoom lens, F2.3–2.6, f 
 36.0–43.2 mm
DC 150 W lamp
500:1
RCA Connector: VIDEO, composite video, 1.0 Vp-p, sync negative, 75 Ω terminated
RCA Connector: AUDIO, 0.5 Vrms more than 22 kΩ (stereo)
4-pin Mini DIN connector
Y (luminance signal): 1.0 Vp-p, sync negative, 75 Ω terminated
C (chrominance signal): Burst 0.286 Vp-p, 75 Ω terminated
580 TV lines (video input)
1.0 W (monaural)
15-
PIN MINI D-SUB CONNECTOR (COMPUTER INPUT 1 port, COMPUTER OUTPUT port):
RGB separate/composite sync/sync on green type analog input: 0–0.7 Vp-p, positive,
75Ω terminated
S
TEREO MINIJACK: AUDIO, 0.5 Vrms, more than 22 kΩ (stereo)
HORIZONTAL SYNC.SIGNAL: TTL level (positive/negative) or composite sync (Apple only)
VERTICAL SYNC.SIGNAL: Same as above
12–108 MHz
43–85 Hz
15–80 kHz
9-pin Mini DIN female connector (RS-232C port)
1
7⁄64 (2.8 cm) round
AC 100–240 V
2.6 A
50/60 Hz
230 W (Selecting “OFF“ in the “Power Save Mode”.)
200 W (Selecting “ON” in the ”Power Save Mode”.)
41°F to 95°F (5°C to 35°C)
4°F to 140°F (20°C to 60°C)
Plastic
38 kHz
10
15⁄64 (W) 
 229⁄32 (H) 
 85⁄32 (D) (260 
 74 
 207 mm) (main body only)
1015⁄64 (W) 
 315⁄64 (H) 
 85⁄32 (D) (260 
 82 
 207 mm) (including
adjustment feet and projecting parts)
5.73 lbs. (2.6 kg)
Remote control, Two AAA size batteries, Power cord (11 10, 3.6 m), Computer RGB
cable (9 10, 3 m), Computer audio cable (9 10, 3 m), PS/2 mouse control cable (3 3, 1
m), USB mouse control cable (4 11, 1.5 m), DIN-D-sub RS-232C cable (6
45⁄64, 15 cm),
Remote mouse receiver, Extra air filter, Lens cap (attached), Lens cap strap, CD-ROM,
LCD projector operation manual, LCD projector quick reference guide
Lamp unit (Lamp/cage module) (BQC-PGC20X//1), Remote control (RRMCG1613CESA),
AAA size batteries, Power cord (CACCU5013DE01), Computer RGB cable
(QCNWG0002CEZZ), Computer audio cable (QCNW-4870CEZZ), PS/2 mouse control
cable (QCNW-5113CEZZ), USB mouse control cable (QCNW-5680CEZZ), DIN-D-sub RS-
232C cable (QCNW-5288CEZZ), Remote mouse receiver (RUNTK0694CEZZ), Air filter
(PFILD0123CEZZ), Lens cap (PCOVZ1095CEKA), Lens cap strap (UBNDT0013CEZZ),
CD-ROM (UDSKA0029CEN1), LCD projector operation manual (TINS-7204CEZZ), LCD
projector quick reference guide (TINS-7205CEZZ)
This unit has some inactive TFTs within acceptable tolerances which
may result in illuminated or inactive dots on the picture screen. This
will not affect the picture quality or the life expectancy of the unit.
If you have any questions about this matter, please call toll free 1-888-
GO-SHARP (1-888-467-4277). 
U.S.A. ONLY
This SHARP projector uses LCD (Liquid Crystal Display) panels. These
very sophisticated panels contain 786,432 pixels (
 RGB) TFTs (Thin
Film Transistors). As with any high technology electronic equipment
such as large screen TVs, video systems and video cameras, there
are certain acceptable tolerances that the equipment must conform
to.
Specifications are subject to change without notice. 
						

							E-49
Appendix
ON/OFF
POWERLAMP
TEMP.
KEYSTONE
INPUT
BACK ENTER MENUAUTO SYNC FOCUS
ZOOM
100-240VCOMPUTER COMPUTER AUDIO AUDIOOUTPUT(INPUT 1)INPUT 1RS-232C
LRAUDIO INPUT INPUT 3 INPUT 2
S-VIDEO VIDEO
(S-VIDEO, VIDEO INPUT)
643/64 (169.5) 3
15/64 (82)8
5/32 (207)
121/32 (42)
117/64 (32)
1015/64 (260)
2
9/32 (58) 421/32 (118)
5/16 (8)
Units: inches (mm)
Top View Rear View
Dimensions
Side View
Front View
Bottom View