Sharp 27DV-S100 Service Manual page 20

27DV-S100
27DV-CS10
Horizontal Size Adjustment
1. Receive a good local channel or crosshatch pattern
signal.
2. Set to standard setting mode.
3. Enter the service mode and select "H-AMP".
4. Adjust the data to obtain the best horizontal size.
Caption Position Adjustment
(Horizontal)
1. Receive a good local channel.
2. Enter the service mode and select "TEXT BOX".
3. A black text box appears on the screen. (see Figure
B below)
4. Adjust the data value so that text box is positioned in
the center of the screen.
White Balance Adjustment of Com-
ponent Signal Input
1. Feed the B/W pattern signal via the component signal
input from signal generator.
2. Set "Y-MUTE" bus data to "01" to get the Y signal
mute.
3. Select a luminance-short gun, and adjust the bus data
of "R CUT-OFF", "G CUT-OFF" and "B CUT-OFF" to
have the luminance at the white level.
4. Adjust the "G GAIN" and "B GAIN" setting to obtain
the specified white level.
Sub-brightness Adjustment of Com-
ponent Signal Input
1. Feed the B/W pattern signal via the component signal
input from signal generator.
2. Make sure the customer brightness control is set to
center position.
3. Enter the service mode and select "BRIGHT".
4. Adjust the data value to obtain normal brightness
level.
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