Hitachi PJ-TX300 Service Manual page 26

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6-8 Notice of AUTO adjustment
Use of AUTO adjustment with the image through RGB input optimizes V_POSI, H_POSI, H_SIZE and
H_PHASE automatically.
In case that projected image has dark tone around its peripheral, AUTO operation sometimes makes artifacts
in the image, shifts capture area and so on. Those failures are caused by period of image data is not exactly
distinguished to period of blanking on signal processing.
To avoid such phenomena, AUTO function should be used with the full size picture that has bright tone on its
peripheral.
Image when AUTO operates correctly
Note
1) The phenomenon at the failure of AUTO adjustment depends on resolution of input source, scene of pic-
ture etc.
2) There is no failure above in AUTO with video source through VIDEO, S-VIDEO or COMPONENT input. The
reason is why recognition of input signal's standard does not need to search the capture range from input
signal itself.
6-9 Related Messages
When the unit's power is on, messages such as those shown below may be displayed. When any such message
is displayed on the screen, please respond as 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
ON ***
SYNC IS OUT OF RANGE
ON *** fH *****kHz fV *****Hz
CHECK THE AIR FLOW
CLEAN THE AIR FILTER
POWER OFF FIRST,
THEN CLEAN THE AIR
FILTER.
AFTER CLEANING THE AIR
FILTER,
RESET THE FILTER TIMER.
PJ-TX300(C11H2)
There is no input signal.
Please confirm the signal input connection, and the status of the signal source.
The horizontal or vertical wavelength of the inputted signal is outside of the
response parameters of this unit.
Please confirm the specs for this unit or the signal source specs.
The internal portion temperature is rising.
Please turn the power OFF, and allow the unit to cool down at least 20 minutes.
After having confirmed the following items, please turn the power ON again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 35°C?
• If the same indication is after the treatment, please set the HIGH at FAN SPEED
of the item SERVICE of the OPTION menu.
A note of precaution when cleaning the air filter.
Please immediately turn the power OFF, and clean or change the air filter by
referring to the "Air Filter" section of this manual. After you have cleaned or
changed the air filter, please be sure to reset the filter timer.
26
Image when AUTO fails.
Noting image of top or bottom lines.
Shift of the image to East or West.
Artifacts on image. Etc.
Description

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