Sharp LC26GD7E Service Manual page 9

The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become
improper or an adjustment is required due to part replacement, make an adjustment according to the following
procedure.
1. Display adjustment procedure
1. Adjustment procedure
Enter the display process mode and then adjust COM BIAS.
Caution: Use due care in handling the infomation described here lest your users should know how
to enter the adjustment process mode. If the settings are tampered in this mode,
unrecoverable system damage may result.
2. Adjustment process mode key operation table
Key Function 1 (when on the left side of a page)
Cursor UP
Moving up by one item or moving to the
previous page (when at the top)
Cursor DOWN Moving down by one item or moving to the next
page (when at the bottom)
Cursor RIGHT
Moving to the right by one item or moving to
another page (in the case of the initial page)
Cursor LEFT
Moving to the left by one item or moving to
another page (in the case of the initial page)
OK Test pattern off
INPUT
Moving to the next page
mark of the R/C
(caution required)
CH (ù)
Moving up by one item or moving to the
previous page (when at the top)
CH (Ù)
Moving down by one item or moving to the next
page (when at the bottom)
VOL (+) Moving to the right by one item or moving to
another page (in the case of the initial page)
VOL (–)
Moving to the left by one item or moving to
another page (in the case of the initial page)
3. COM BIAS adjustment
Shift to the [COM BIAS] item with the cursor UP/DOWN key and select a numeric value with the cursor
RIGHT/LEFT key.
Changing the numeric value with the cursor UP/DOWN key will make appear the test pattern. Make an
adjustment so that the flicker near the center of the screen is minimized.
ADJUSTMENT PROCEDURES
Function 2 (when changing a numeric value)
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item
Moving to the left by one item
Executing the item (in the case of W or R
items)
Moving to the next page
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item
Moving to the left by one item
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