User Guide

7
7DN-D4000
SERVICE PROGRAM
Required Measuring Implement
1. Reference disc (TCD784 or CO-74176)
1. What is Service Program
Service program is a special program intended for confirming servo functions etc.
2. Contents of Service Program
Switch on the power while pushing the CD1’s PITCH BEND + button and CD2’s OPEN/CLOSE button at the same
time. After actuating the servo program, select an aiming process number with the SELECT knob, A1 button, or A3 button.
Press the SELECT knob to execute the selected process, the process number is then displayed on the track indicator of the
display. To exit from the service program, just switch off the power.
Function
(Character-display)
Contents
μcom Version check
(Version No.)
“SysVerXXXX”
Check Version with JOG dial.
1. System μcom version No.:
2. RC μ
com version No.: “RC_VerXXXX”
Error Code Check
(Error Data)
Turn the JOG dial to display the logging error codes in the occurred order.
“ErrXX_E
* * *
” XX : occurred order E
* * *
: error code
10 error logs are memorized at maximum.
Kinds of Error Code, displayed
Error Code Table
Pressing SELECT knob enters to data erase mode. (“Err Clear?” is displayed.)
If the SELECT knob is pushed again, the memorized error data are cleared.
Total Running Time
(Total_Time)
Total time span of servo function that counted by the hour is displayed.
“R.Tim XXXXH”
Note: No time is counted if disc tray is opened within 59 minutes.
Pressing SELECT knob enters to data erase mode. (“Time Clear?” is displayed.)
If the SELECT knob is pushed again, the memorized time data are cleared.
SELECT knob
Automatic
Servo Adjustment
call
Starts automatic servo adjustment when the SELECT knob is pushed, and after
completing the adjustment, sort of the used disc is indicated. Data is selectable with
the JOG dial.
“Servo_Data”
1. Focus gain data
2. Focus balance data
3. Focus offset data
4. Tracking gain data
5. Tracking balance data
6. Tracking offset data