Adjustment Procedures (Display) - Sharp LC-37AD1E Service Manual

ADJUSTMENT PROCEDURES (Display)

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. Preparation
Note that the unit should be replaced when the receiver IC (IC2206), HDCP key ROM (IC2208) or microprocessor
(IC2004) is replaced.
Applicable unit: DKEYHC016FE52
2. Adjusting procedure
Entering the adjustment process mode → VLS BIAS (15V) voltage adjustment → GRAY LEVEL (14.5V) voltage
adjustment → COM BIAS adjustment → Background adjustment
3. How to enter the adjustment process mode
(1) When the AVC System is not connected
• Turn OFF the monitor main power. Turning ON the monitor main power while pressing the "INPUT" key
and "VOL (–)" key on the top face of the monitor main body together will establish the "Monitor Process"
mode.
(2) When the AVC System is connected
• Turn OFF the monitor main power. Turning ON the monitor main power while pressing the "CH (Ù)" key
and "VOL (+)" key on the top face of the monitor main body together will establish "Monitor Process"
mode.
In each case of (1) and (2), "<K>" is displayed in the upper left portion of the screen.
Then, pressing any key will bring you to the first page of the "Monitor Adjustment" mode.
~ To exit the adjustment process mode, turn OFF the main power.
4. 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)
ENTER Test pattern off
INPUT Moving to the next page
CH (ù) Moving down by one item or moving to the next
page (when at the bottom)
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)
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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LC-37AD1E