Sony Projector VPL-CH375 User Manual

51Playing Video and Audio using USB Connection
Playing Video and Audio using USB Connection
BPlaying Video and Audio using USB Connection
Playing Video and Audio using USB 
Connection
You can also play video and audio simply by connecting the projector and computer with a 
USB A-B cable (not supplied).
Playing video and audio using USB connection requires to start USB Display. 
System requirements for using the application are as follows.
OS
Windows XP: Home/Professional
Windows Vista: Home...

52Playing Video and Audio using USB Connection
For Mac:
ItemsFunctions
Start audio/video 
playback.
Pause audio/video 
playback.
Stop audio/video playback 
(the screen turns black).
Display information about 
USB Display. 

53Indicators
Others
BOthers
Indicators
The indicators allow checking the status and notify you of abnormal operation of the projector.
If the projector exhibits abnormal status, address the problem in accordance with the table 
below.
ON/STANDBY indicator
LAMP/COVER indicator
StatusMeaning/Remedies
Lights in red The projector is in Standby mode.
Flashes in green  The projector is ready to operate after having been turned on. 
 The lamp cools after the projector is turned off.
Lights in green The...

54Messages List
Messages List
When any of the messages listed below appears on the projected image, address the problem in 
accordance with the table below.
MessagesMeaning/RemedyPage
High temp.! Lamp off in 
1 min.Check the items below.
 Check if nothing is blocking the ventilation holes.
 Check if the air filter is not clogged.
 Check if the Installation Attitude in the Installation menu is 
set correctly.4, 34, 
60
Frequency is out of 
range!Change the output setting of the connected equipment to one...

55Troubleshooting
Others
Troubleshooting
Before asking to have the projector repaired, try to diagnose the problem, following the 
instructions below.
SymptomsRemedyPage
The power is not turned 
on.Check if the AC power cord is firmly connected. –
When the “Control Key Lock” is set to “On,” you cannot turn 
on the projector using the ?/1 key on the projector.30
If the lamp or lamp cover is not attached securely, the projector 
cannot be turned on.58
No image. Check if the connecting cable is connected to...

56Troubleshooting
The image is dark/too 
bright.The settings for “Brightness,” “Contrast,” and “Lamp Mode” 
affect brightness of the image. Check if the value is 
appropriate.25, 31
The image will be dark when the lamp is burnt out. Check 
“Lamp Timer,” and replace the lamp with a new one if 
necessary.36, 58
“With Static Signal” is set to “On.”  32
During picture muting, the lamp is dimmed to reduce power 
consumption. 32
When video signal is not input, the lamp is dimmed to reduce 
power consumption.–...

57Troubleshooting
Others
The image is not 
projected properly when 
the projector is 
connected via the 
HDBaseT connector and 
the cables are inserted or 
removed from other 
connectors. Change the input connector to project the image properly. –
SymptomsRemedyPage 

58Replacing the Lamp
Replacing the Lamp
Replace the lamp with a new one if a message displayed on the projected image (pages 53, 54).
Use an LMP-C281/C250 projector lamp (not supplied) for replacement.
 The lamp remains hot after the projector is 
turned off. If you touch the lamp, you may 
burn your finger. When you replace the 
lamp, wait for at least an hour after 
turning off the projector for the lamp to 
cool sufficiently.
 Do not allow any metallic or inflammable 
objects into the lamp replacement...

59Replacing the Lamp
Others
3Loosen the 3 screws on the lamp (1) 
then pull out the lamp by its grab (
2).
4Insert the new lamp all the way in until 
it is securely in place (
1). Tighten the 
3 screws (
2).
5Close the lamp cover and tighten the 
3 screws.
Be sure to install the lamp and Lamp cover 
securely as it was. If not, the projector 
cannot be turned on.
6Connect the AC power cord to a wall 
outlet and turn on the projector.
7Reset the lamp timer for notification of 
the next replacement time....

60Cleaning the Air Filter
Cleaning the Air Filter
When a message appears on the projected image, clean the air filter (page 54).
If the dust cannot be removed from the air filter even after cleaning, replace the air filter with 
a new one. For details on a new air filter, consult with qualified Sony personnel.
If you neglect to clean the air filter, dust may accumulate, clogging it. As a result, the 
temperature may rise inside the unit, leading to a possible malfunction or fire.
1Turn off the projector,...