User Guide

6
6
DN-C615
SERVICE PROGRAM
1. REQUIRED MEASURING IMPLEMENT
• Reference disc (TCD784 or CO-74176)
1.1. What is Service Program
Service program is a special program intended for confirming servo functions etc.
1.2. µcom Version Check
• Refer to "Preset Functions and Operations" of the instruction manual.
• You can check the
µ
com version.
1.3. B.E.R. Checks and Automatic Servo Adjustment Call
• Switch on the power while pushing the 5 button and 6 button at the same time. And Loading a disc
by OPEN/CLOSE button.
(1) Block Error Rate
Press the PLAY button. B.E.R. is displayed.
01Tr **m XXXX XXXX: Block Error Rate
You can select the track by the 、 button.
(2) Tracking balance and Focus balance data
Press the 2 button. Tracking balance and Focus balance data is displayed.
2
±
XXX
±
@@@ XXX: Tracking balance
@@@: Focus balance
(3) Focus gain data
Press the 3 button. Focus gain data is displayed.
3 XXXX XXXX: Focus gain
(4) Tracking gain data
Press the 4 button. Tracking gain data is displayed.
4 XXXX XXXX: Tracking gain
(5) Tracking offset and Focus offset data
Press the 5 button. Tracking offset and Focus offset data is displayed.
5
±
XXX
±
@@@ XXX: Tracking offset
@@@: Focus offset
(6) Press the 1 button to select the Block Error Rate data.
(7) To stop the B.E.R. Check and Automatic Servo Adjustment Call mode, please turn off the POWER switch.
Adjustment Item Adjustment Value indicator
1 Tracking Balance -025 ~ +025
2 Focus Balance -030 ~ +030
3 Focus Gain 0576 ~ 2304
4 Tracking Gain 0392 ~ 1569
5 Tracking Offset -005 ~ +005
6 Focus Offset -005 ~ +005