Pioneer DVR-233-S Service Manual page 57

5
2. ATA/ATAPI Debug Screen (Second screen)
[Purposes]
To be used as a rough guide to judge
whether the pickup unit is all right or not
• Dirt on the pickup lens
• Degradation of the laser diodes for
reading CDs and reading/writing to/from
DVDs
[How to enter]
• While the User Operation display is displayed, press the ESC , DISP , then 2 keys, in that order.
[How to quit]
Press the ESC key.
LD degration judgement of ATA/ATAPI DEBUG OSD
• For correct measurement of items 1 to 4 indicated in the display below, leave the unit at room
[Notes]
temperature (25°C) for a while before turning it on, and do not load a disc.
[Procedures] To update the value for each item, press the SEARCH key while the screen is displayed.
For details on each item and the conditions of updating the values, see Table 1 below.
A T A / A T A P I - LD Degrade
1 C D : 0 0 6 C
2 D V D : 0 0 6 9
3 T M P : 0 0 A 9
4 A D J : 0 0 8 C
Table 1: Description of each item and conditions for updating data
No. Item
Degradation judgment of LD for CD. Regarded as NG when the value
1
CD
is 120% or higher (same standard as for the PC drive)
Degradation judgment of LD for DVD. Regarded as NG when the
2
DVD
value is 120% or higher (same standard as for the PC drive)
3
TMP Current temperature inside the Writer
4
ADJ Temperature (approx. 25°C) inside the Writer during adjustment
If the results of degradation of the LDs for CDs and DVDs are both NG, replace the drive.
5
6
1 0 2 % O K
1 0 1 % O K
4 2 °C
3 5 °C
Description
6
7
[Tools to be used]
Remote control unit for servicing
(GGF1381)
DVR-231-S
7
8
Aluminum-coated test disc
(GGV1025)
Conditions for updating by
pressing the SEARCH key
No disc inserted in the disc tray
No disc inserted in the disc tray
No disc inserted in the disc tray
No disc inserted in the disc tray
8
A
B
C
D
E
F
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