Sharp QA1150 Operation Manual page 22

PHASE adjustment
Adjust the PHASE if the display flickers. Select the PHASE adjustment mode with the
MODE SELECT button, then press the MODE ADJ buttons (A or V_) as necessary
to eliminate flicker from the display.
4: Increases PHASE.
V : Decreases PHASE.
H-POS adjustment
Adjust the H-POS if you need to change horizontal positioning of the image. Select the
H-POS adjustment mode with the MODE SELECT button, then press the MODE ADJ
buttons ( A or V ) to adjust positioning as desired.
A: Shifts the image to the right.
V : Shifts the image to the left.
V-POS adjustment
Adjust the V-POS if you need to change vertical positioning of the image. Select the
V-POS adjustment mode with the MODE SELECT button, then press the MODE ADJ
buttons ( Aor V) to adjust positioning as desired.
A : Shifts the image upward.
V : Shifts the image downward.
FREQ adjustment
This adjustment allows you to change the display data frequency to match the frequency
of the connected computer. Select the FREQ adjustment mode with the MODE SELECT
button, then press the MODE ADJ buttons ( A or V ) to adjust the frequency.
A : Increases the frequency.
V : Decreases the frequency.
CONTRAST adjustment
Use the contrast adjustment function to adjust the contrast of the projected image.
Use the MODE SELECT button to select the CONTRAST adjustment mode, then press
the MODE ADJ buttons ( A or V_) to adjust the contrast.
A: Increases the contrast
V : Decreases the contrast
NOTES
If the projected image flickers, try using the contrast adjustment to reduce the flicker.
In some cases, however, there may be residual flicker which it is not possible to
remove.
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