CD-DV600W
2 – 2
[3] DVD/CD section
1. DVD SECTION
•
Adjustment
Since this DVD system incorporates the following automatic adjust-
ment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
Items adjusted automatically
1) Offset adjustment (The offset voltage between the head amplifier
output and the VREF reference voltage is compensated inside the
IC.)
* Focus offset adjustment
* Tracking offset adjustment
2) Tracking balance adjustment
3) Gain adjustment (The gain is compensated inside the IC so that the
loop gain at the gain crossover frequency will be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
DVD/CD Error code description
* 'CHECKING'
If Error is detected, 'CHECKING' will be displayed instead of 'ER-
CD**'. 'ER-CD**' display will only be displayed when error had been
detected for the 5th times.
Error
Explanation
10*
CAM error. Can't detect CAM switch when CAM is moving.
11*
When it detect cam operation error during initialize pro-
cess.
20*
TRAY error. Can't detect TRAY switch when TRAY is mov-
ing.
21*
When it detect TRAY operation error during initialize pro-
cess.
30
When it change to DVD/CD function, DVD cannot read ini-
tial data.
