ViewSonic VS1045 Service Manual page 30

6-10 Related Messages
When the projector's power is on, messages such as those shown below may be displayed. When any such
message is displayed on the screen, please follow the instructions described below.
Although these messages will be automatically disappeared around several minutes, it will be reappeared
every time the power is turned on.
Message
NO INPUT IS DETECTED
SYNC IS OUT OF RANGE
fH kHz fV
CHECK THE AIR FLOW
REMINDER
*** HRS PASSED AFTER THE LAST
FILTER CHECK.
FILTER MAINTENANCE IS ESSENTIAL
TO REMOVE WARNING MESSAGE,
RESET FILTER TIMER.
SEE MANUAL FURTHER INFO.
ViewSonic Corporation
There is no input signal.
Please confi rm the signal input connection, and the status of the signal source.
The horizontal or vertical frequency of the input signal is not within the
specifi ed range.
Hz
Please confi rm the specs for your projector or the signal source specs.
The internal temperature is rising.
Please turn the power off, and allow the projector to cool down at least 20 minutes.
After having confi rmed the following items, please turn the power ON again.
• Is there blockage of the air passage aperture?
• Is the air fi lter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, please set FAN SPEED of the
SERVICE item in the OPTION menu to HIGH.
A note of precaution when cleaning the air fi lter.
Please immediately turn the power off, and clean or change the air fi lter referring to
the "Air Filter" section of the service manual for PJ400. After you have cleaned or
changed the air fi lter, please be sure to reset the fi lter timer.
Description
Confidential - Do Not Copy
27
PJ400-2