Pioneer PDR-509 Manuale di servizio - Pagina 38

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PDR-555RW, PDR-V500, PDR-19RW, PDR-509

9.5 DISC JUDGMENT

9.5.1 Tentative Judgment Using FZC

(Distinguishing Between CD/CD-R

and CD-RW)

The judgment is made before the Focus IN operation after the disc

is inserted.

FZC (SENS)

Judged that the disc is a CD-RW

if this period is less than 200 µs.

Bringing up the focus, the range of FZC is checked at that time.

It is judged that the disc is a CD/CD-R if FZC remains "H" for more

than 200 µs.

It is judged that the disc is a CD-RW if FZC is not detected or

intermittently detected.

9.5.2 Disc Judgment with Each Type of Disc

<CD-RW>

1 : Blank Disc

1 Disc that has no RF in LIA and PMA

• Brand-new disc

• Disc after ALL Disc Erase processing

2 Disc that has RF in PMA, but not in LIA

• Disc that has only MODE2 in PMA

Disc of category 1 , calibrated once and ejected.

• Disc that has MODE0 in PMA

Disc of category 1 , with ALL Track Erase processing

executed after recording, and ejected

3 Disc of MODE0 data while it has RF in LIA and PMA

• Disc processed with only an ALL Track Erase operation after

being finalized

2: Partial Disc (Disc which has RF in PMA)

4 Disc that does not have RF in LIA

5 Disc that has RF in LIA

• Disc processed with ALL Track Erase operation and recorded

on after being finalized

3: Finalized Disc (Disc that has TOC in LIA)

6 Disc that does not have RF in PMA

• Disc finalized with synchronized recording

7 Disc that has RF in PMA

<CD-R> Orange book Ver. 2.9/3.0

1: Blank Disc

8 Disc that does not have RF in LIA and PMA

• Brand-new disc

9 Disc that has RF in PMA, but not in LIA

• Disc that has only MODE2 in PMA

Disc of category 8 , calibrated once and ejected.

2: Partial Disc (disc that has RF in PMA)

0 Disc that does not have RF in LIA

3: Finalize Disc (Disc that has TOC in LIA)

- Disc that does not have RF in PMA

• Disc finalized with synchronized recording

= Disc that has RF in PMA

<CD>

~ 12cm CD

! 8cm CD

@ CD-ROM

# CD Extra

$ CD-I

% CDV

^ Maxi-CD

& Others

Note) LIA : Lead In Area

PMA : Program Memory Area