Sharp AL-2051 Service Manual download pdf (Page 106)

AL-2051 SIMULATION, TROUBLE CODES 10 - 30

63 02 Black level automatic

correction

[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 [ENTER]/[START] key is pressed, the mirror base unit scans the chart and calculates the

correction 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.

* When error is occur JAM lamp is ON.

[Operation]

12 Light quantity stabilization

wait time setting

[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 [Numeric] key 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.

13 Light quantity stabilization

band setting

[Function]

When the difference between the maximum and the minimum values of the light quantity level

sampled for 3.2sec in the cycle of 100msec in the white balance light quantity stable process is

within the range set with this simulation, it is judged as the light quantity is stable. (Note: The

magnification ratio of the AFE gain setting is automatically reflected on the stable width.)

When this simulation is executed, the currently set value is displayed.

Enter the adjustment value with [Numeric] key and press [START] key. The entered value is

stored and the machine goes into the sub code entry standby mode.

Setting range: 1 – 99 (Light quantity stable width: Complying with 1 – 99 in 4095 gradations.)

Default: 16

[Operation]

The operation is similar to simulation 9-04.

Main

code

Sub

code

Contents Details of function/operation

Chart back surface

1) Initial display

2) [ENTER]/[START] key:

Correction start

63-02 BLACK LEVEL

000

63-02 BLACK LEVEL

EXECUTING...

<During canceling - When [Clear]/[Clear All] key is

pressed->

After canceling, the machine goes into the sub

code entry standby mode.

3) After execution

3) In case of an error

THE JOB IS BEING

CANCELED.

63-02 BLACK LEVEL

*** OK

63-02 BLACK LEVEL

*** ERR

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Sharp AL-2051 Service Manual Page 106

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