Sharp XG-C58X Service Manual page 29

Gradation 2:
Gradation 1:
Gradation 0:
For the model in question, select the name entered in (2) to start the color irregularity correction. If the
set has its optical characteristics rather different from the standard ones or if the set has some color
irregularity lines missing, do the teaching for that set in particular. Use its specified correction coeffi-
cients in making the adjustment.
No. Adjustment Items
21 Checking and
readjustment of
white balance
22 Checking color-
related perfor-
mance
23 Checking of
picture-related
performance
24 Checking of RGB
performance
25 Checking of off-
timer performance
26 Checking of
thermistor perfor-
mance
27 Automatic sync
operation
28 Vertical line level
check
29 Factory settings
1. Upper-gradation correction value to be used.
1. Upper-gradation correction value to be used.
1. Upper-gradation correction value to be used.
Adjustment Conditions
1. The adjusting conditions for each
item are as follows:
For RGB input, see Item 7.
For video input, see Item 14.
For COMPO input, see Item 17.
1. Receive the color bar signal.
1. Receive the monoscope pattern sig-
nal.
1. Receive the RGB signal.
1. Heat the thermistor with a hair dryer.
1. Receive the phase checking pattern
signal.
1. Receive the RGB signal. 10-step
gray-scale
Adjustment Procedures
1. Make sure the white balance is as
specified on the standard monitor.
For readjustment, proceed in the or-
der of RGB input, video input and
COMPO input.
1. Select L1 in the process mode.
Check the performance of Color and
Tint.
1. Select L2 in the process mode.
Check Picture, Brightness and Sharp-
ness.
1. Select L4 on the process mode.
Check Picture, Brightness, Red, Blue,
Clock, Phase, H-POS and V-POS.
1. Select OFF in the process mode.
Make sure that the off-timer starts
with 5-minute display, counts down
1 minute for 1 second, and turns off
when 0 minute is displayed.
1. Make sure the temperature is dis-
played.
1. Make sure that Clock, Phase, H-POS
and V-POS can be automatically
adjusted in the VGA/S-VGA/XGA
mode.
1. Compare with the vertical line bound-
ary sample, and it must be at the
boundary sample or less. In case that
it is bad, adjust the PSIG-L of the
item 3.
However, it must be within the range
of 190 - 200.
1. Make the following settings.
Destination
North-
American
Other
29
XG-C58X
XG-C68X
Remote
Process
controller
adjustment
settings
Factory
S4
Setting 4
Factory
S3
Setting 3