Sony VPL-S900U Service Manual page 26

Troubleshooting
If the projector appears to be operating erratically, try to diagnose and correct the problem, using the following
guide. If the problem still persists, consult with qualified Sony personnel.
Symptom Cause
The power is not turned on. The power has been turned off and on
with the I / u key at a short interval.
The lamp cover is detached.
The air filter cover is detached.
No picture and no sound. Cable is disconnected.
Wrong connection.
Input selection is incorrect.
No picture or no sound. Either the picture or the sound is cut off.
No picture. The computer signal is not set to output
to external monitor.
The computer signal is set to output to
both the LCD of the computer and
external monitor.
The picture is noisy. Noise may appear on the background
depending on the combination of the
numbers of dot input from the connector
and numbers of pixel on the LCD panel.
When inputting sound through Monaural sound is being input through
INPUT A/B connector, sound the INPUT A/B connector.
comes through one channel only.
The picture from INPUT A/B
Setting for INPUT-A/INPUT-B in the SET
connector is colored strange. SETTING menu is incorrect.
"Please check INPUT-A in Setting for INPUT-A in the SET
SET SETTING." appears in SETTING menu is incorrect.
spite of inputting the correct
signal from INPUT A.
"Please check INPUT-B in Setting for INPUT-B in the SET
SET SETTING." appears in SETTING menu is incorrect.
spite of inputting the correct
signal from INPUT B.
No display appears though The RGB IN/OUT select switch is set to
the correct signal is input from OUT.
INPUT B.
"NO INPUT" appears when The sync signal is incorrect.
15k RGB or component signal
is input.
On-screen displays do not STATUS in the SET SETTING menu has
appear. been set to OFF.
Color balance is incorrect. Picture has not been adjusted properly.
Projector is set to wrong color system.
The picture is too dark. Contrast or brightness has not been
adjusted properly.
The picture is not clear. Picture is out of focus.
Condensation has occurred on the lens.
38
(EN)
Remedy
Wait for about one minute before turning on the
power (see page 22 (EN)) .
Close the lamp cover securely.
Close the air filter cover securely (see page 37 (EN)) .
Check that the proper connections have been
made (see pages 18 (EN) to 21 (EN)) .
Check that the proper connections have been
made (see pages 18 (EN) to 21 (EN)) .
Select the input source correctly using the INPUT
key (see page 22 (EN)) .
Press the MUTING keys to release the muting
function (see page 23 (EN)).
Set the computer signal to output to external
monitor (see page 18 (EN)).
Set the computer signal to output only to external
monitor (see page 18 (EN)).
Change the desktop pattern on the connected
computer.
Input stereo sound.
Select RGB or COMPONENT for INPUT-A or
INPUT-B in the SET SETTING menu according to
the input signal (see page 31 (EN)) .
Select RGB or COMPONENT for INPUT-A in the
SET SETTING menu according to the input signal
(see page 31 (EN)) .
Select RGB or COMPONENT for INPUT-B in the
SET SETTING menu according to the input signal
(see page 31 (EN)) .
Set the switch to IN (see page 14 (EN)) .
Input the correct sync signal (composite sync or
sync on G signal (sync on Y for component
signal)).
Set STATUS in the SET SETTING menu to ON
(see page 31 (EN)) .
Adjust the picture (see pages 26 (EN) and 27 (EN)).
Set COLOR SYS in the PICTURE CTRL menu to
match the color system being input (see page 27 (EN)) .
Adjust the contrast or brightness in the PICTURE
CTRL menu properly (see page 26 (EN)) .
Adjust the focus (see page 23 (EN)) .
Leave the projector for about two hours with the
power on (see page 35 (EN)) .
Symptom Cause
The lamp cover or the air filter cover is
The LAMP/COVER indicator
detached.
flashes.
The LAMP/COVER indicator The lamp has reached the end of its life.
lights up.
The fan is broken.
The TEMP/FAN indicator
flashes.
The TEMP/FAN indicator The internal temperature is unusually
high.
lights up.
The Remote Commander batteries are
The Remote Commander
dead.
does not work.
The COMMANDER ON/OFF switch is
set to the OFF position.
You are using the Remote Commander
as a wireless Remote Commander, and
it is connected to the projector.
The front/rear remote commander
detector is near the fluorescent lamp.
The batteries are dead.
The laser pointer is not
emitted.
The Remote Commander is used as
wired without batteries.
The joystick, R CLICK, or L The mouse port on the computer does
CLICK key does not function. not recognize the mouse cable.
Warning messages
Use the list below to check the meaning of the messages displayed on the screen.
Message Meaning
Internal temperature is too high.
High Temperature!
Power off in 1 min.
This input signal cannot be projected as
Frequency is out of range!
the frequency is out of the acceptable
range of the projector.
The resolution setting of the output
signal of a computer is too high.
You have input RGB signal from the
Please check INPUT-A in SET
SETTING. computer when INPUT-A in the SET
SETTING menu is set to COMPONENT.
You have input RGB signal from the
Please check INPUT-B in SET
computer when INPUT-B in the SET
SETTING.
SETTING menu is set to COMPONENT.
Caution messages
Use the list below to check the meaning of the messages displayed on the screen.
Message Meaning
NO INPUT No input signal
Not applicable! You have pressed the wrong key.
Remedy
Attach the cover securely (see page 37 (EN)) .
Replace the lamp (see page 37 (EN)) .
Consult with qualified Sony personnel.
Check to see if nothing is blocking the ventilation
holes.
Replace with new batteries (see page 16 (EN)) .
Set the switch to ON position (see page 16 (EN)) .
Disconnect the cable.
Change the setting of SIRCS RECEIVER in the
SET SETTING menu (see page 32 (EN)) .
Replace with new batteries (see page 16 (EN)) .
Install batteries (see page 16 (EN)) .
Restart the computer.
Remedy
Turn off the power.
Check to see if nothing is blocking the ventilation
holes.
Input a signal that is within the range of the
frequency.
Set the setting of output to the SVGA.
Set INPUT-A correctly.
Set INPUT-B correctly.
Remedy
Check connections.
Press the appropriate key.
39
(EN)