Sharp AL-2020 Service Manual page 121

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Contents
code code
63 02 Black level automatic
correction
12 Light quantity stabilization
wait time setting
[Function]
Used to acquire the black level target value used for the black level adjustment of white balance.
When this simulation is executed, the current correction value is displayed in 3 digits of 12bit
hexadecimal number.
Place the gray gradation chart (UKOG-0162FCZZ) used as the correction document so that the
density 10 (black side) comes on the left side and that the chart is upside down at the center of
the plate left center.
When [OK]/[START] key is pressed, the mirror base unit scans the chart and calculates the cor-
rection value.
After completion of correction, the corrected value is displayed on the LCD/display.
* Default: 0
* If the value is set to the default, operation is made with 0x60.
[Operation] (AL-2050/2060)
1) Initial display
63-02 BLACK LEVEL
2) [OK]/[START] key:
Correction start
63-02 BLACK LEVEL
EXECUTING...
[Function]
Used to set the wait time before entering the light quantity level stable evaluation process in the
light quantity stable process of white balance. (Note: The light quantity stable level in the previ-
ous light quantity stable state is used as the target. When the light quantity level reaches the
target during the wait time, the set time of this simulation is ignored and the operation enters the
stable evaluation process.)
When this simulation is executed, the currently set value is displayed.
Enter the adjustment value with [ ] [ ] key (or [Numeric] key for the AL-2050/2060) and press
[START] key. The entered value is stored and the machine goes into the sub code entry standby
mode.
Setting range: 0 – 99 (Complying with the light quantity stable wait time of 0 – 99sec.)
Default: 15 (15sec)
[Operation]
The operation is similar to simulation 9-04.
AL-2020/2035/2040/2050/2060 SIMULATION, TROUBLE CODES 10 - 31
Details of function/operation
10
Chart back surface
<During canceling - When [Clear]/[Clear All] key is
pressed->
After canceling, the machine goes into the sub
000
code entry standby mode.
THE JOB IS BEING
CANCELED.
3) After execution
63-02 BLACK LEVEL
3) In case of an error
63-02 BLACK LEVEL
*** OK
*** ERR