Panasonic DP-C321, Service Handbook

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2-14
Chapter 2 Maintenance
(3) The setup value is displayed on the White Reference Setup Value screen.
<CCD Calibration>
(1) Select and execute the CCD Calibration in the Execution column.
(2) Follow the instructions on the screen, then place the Test Chart (STP5001:499T276)
on the platen and select OK.
(3) The obtained data is displayed for the CCD Calibration Setup Value box.
(4) Select [Close] to return to the Color Image Quality Adjustment screen.
<Light Axis Fluctuation Correction>
Purpose It is specified to replace the CCD in the Lens unit. This correction function to
maintain the image quality is provided because the light axis may slant depending upon
accuracy of the Frame.
The steps are included in the Disassembly/Assembly steps since it is operated after
replacing the Lens unit. (Refer to REP14. 4. 1)
ADJ1. 1. 8 DC355 Hard Disk Diag Program
Purpose To perform the diagnostics in the hard disk and setup (initialization) of each partition.
The M/C carries out the following operations:
(1) Carries out shading to stabilize the IIT state.
(2) Obtains the shading data.
(3) Performs sampling the white paper data to calculate and set the White
Reference Correction Coefficient. ( DC131 NVM (715-083) to NVM (715-
085) are set up.)
(4) Carries out shading to reflect the result of the White Reference
Adjust
ment.
Perform this correction always when replacing the Lens unit.
Performs the above servicing after the customer's approval is obtained. Check what kind
of data are stored in each partition according to the list below since some partitions store
fonts etc. that the customer has installed.
Refer to 3. 4. 4. 11 DC355 Hard Disk Diag Program for details on how to use the Diag.
Write down the information on Hard Disk in "8.3 About Hard Disk" for your reference.
Setup function is only available from customer's mode or UI-Diag mode in Partition A.