Sharp XV-Z90E (serv.man31) User Manual / Operation Manual ▷ View online
Maintenance &
Tr
oubleshooting
-50
Troubleshooting
Check
• Projector power cord is not plugged into the wall outlet.
• Selected input is wrong. (See page 24.)
• Cables incorrectly connected to back panel of the projector. (See pages 12–15.)
• “Contrast” and “Bright” adjustments are set to minimum position. (See page 43.)
• Selected input is wrong. (See page 24.)
• Cables incorrectly connected to back panel of the projector. (See pages 12–15.)
• “Contrast” and “Bright” adjustments are set to minimum position. (See page 43.)
• Picture adjustments are not correct. (See page 43.)
• Adjust the focus. (See page 16.)
• Projection distance is too long or too short to allow for proper focus. (See pages 21 and 22.)
• Projection distance is too long or too short to allow for proper focus. (See pages 21 and 22.)
• OSD Display is set to “OFF”, preventing to display some or all On-screen Displays. (See
page 36.)
• If the picture is normal, the sound is due to cabinet shrinkage caused by temperature
changes. This will not affect operation or performance of the projector.
• Refer to “Lamp/Maintenance Indicators” on page 44.
• Adjust the “Phase” setting. (See page 33.)
• Change the input signal type. (See page 36.)
Problem
No picture appears.
Colour is faded or poor.
Picture is blurred.
No OSD appears.
An unusual sound is occasion-
ally heard from the cabinet.
ally heard from the cabinet.
Maintenance indicator
illuminates.
illuminates.
Picture noise appears.
Image is green on INPUT 2
COMPONENT.
Image is pink (no green) on
INPUT 2 RGB.
COMPONENT.
Image is pink (no green) on
INPUT 2 RGB.
Kensington Security
Standard connector
Standard connector
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.
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.
Rear View
Using the Kensington Lock
Appendix
-51
Connecting Pin Assignments
RS-232C Port: 9-pin D-sub male connector of the DIN-D-sub RS-232C cable
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
Reserved
Connected to internal circuit
5
SG
Signal Ground
Connected to internal circuit
6
Reserved
Connected to internal circuit
7
Reserved
Connected to internal circuit
8
Reserved
Connected to internal circuit
9
Not connected
6 7 8 9
1 2 3 4 5
INPUT 2 COMPONENT/RGB Port: 15-pin Mini D-sub female connector
• RGB Input
Pin No. Signal
Pin No. Signal
1
Video input (red)
2
Video input
(green/sync on green)
(green/sync on green)
3
Video input (blue)
4
Not connected
5
Composite sync
6
Ground (red)
7
Ground (green/sync on green)
10
9
8
7
6
15
14
13
12
11
5
4
3
2
1
Pin No. Signal
8
Ground (blue)
9
Not connected
10
Ground
11
Ground
12
Bi-directional data
13
Horizontal sync signal
14
Vertical sync signal
15
Data clock
• Component Input
Pin No. Signal
Pin No. Signal
1
Video input P
R
(C
R
)
2
Video input Y
3
Video input P
B
(C
B
)
4
Not connected
5
Not connected
6
Ground (P
R
)
7
Ground (Y)
Pin No. Signal
8
Ground (P
B
)
9
Not connected
10
Not connected
11
Not connected
12
Not connected
13
Not connected
14
Not connected
15
Not connected
Appendix
-52
(RS-232C) Specifications and Command Settings
PC control
A computer can be used to control the projector by connecting an RS-232C cable (null modem, cross type,
commercially available) to the projector. (See page 14 for connection.)
commercially available) to the projector. (See page 14 for connection.)
Communication conditions
Set the serial port settings of the computer to match those of the table on the next page.
Signal format: Conforms to RS-232C standard.
Baud rate: 9,600 bps
Data length: 8 bits
Parity bit: NONE
Stop bit: 1 bit
Flow control: None
Signal format: Conforms to RS-232C standard.
Baud rate: 9,600 bps
Data length: 8 bits
Parity bit: NONE
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.
projector processes the command from the computer, it sends a response code to the computer.
Return code (0DH)
C1 C2 C3 C4 P1 P2 P3 P4
Response code format
Normal response
O K
Return code (0DH)
Problem response (communication error or incorrect command)
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.
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.
the On-screen Display.
Commands
EXAMPLE
• When power on.
→
←
P
O
W
R
1
_
O
K
Projector
Computer
_
_
Appendix
-53
(RS-232C) Specifications and Command Settings
• If an underbar (_) appears in the parameter column, enter a space.
CONTROL CONTENTS
POWER ON
POWER OFF
INPUT 1 (COMPONENT 1)
INPUT 2 (COMPONENT 2)
INPUT 3 (S-VIDEO)
INPUT 4 (VIDEO)
OK OR ERR
OK OR ERR
OK OR ERR
OK OR ERR
OK OR ERR
OK OR ERR
P
P
I
I
I
I
O
O
V
V
V
V
W
W
E
E
E
E
R
R
D
D
D
D
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
1
0
1
2
3
4
BUTTONS & REMOTE CONTROL BUTTONS
COMMAND PARAMETER
RETURN
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