LG HDR688X, Service Manual

Page: 82 / 175

4-21
Inner Disc Test Zone : fo r performing OPC procedures.
Inner Disc Count Zone : For counting the nu mber of OPC algorithm performed in IDT Zone.
Outer Disc Test Zone :
for performing OPC procedures.
Outer Disc Count Zone :
For counting t he number of OPC algorithm perf ormed in IDT Zone.
2) Layout of DVD+R disc
1) Layout of DVD-ROM disc
Inform ation Zone
Center
hole
Clamping
Zone
Diameter 120 mm
Diameter 15mm
Data Zone Lead-in Zone Lead-out Zone
Read Only Disc
Disc Center
Diameter 16mm
Diameter 22mm
3th tra nsition
area
Diameter 33mm
Diameter 44mm
1th tra nsition area
2th transition area
Rim
area
Data Zone
Lead-in
Zone
In ner Drive
Area
Unrecorded Disc
Outer Drive
Area
Inner Disc
Test Zone
in
27080H 28480H
Inform ation Zone
Center
hole
Clamping
Zone
Diameter 120 mm
Diameter 15mm
Disc Center
Diameter 16mm
Diameter 22mm
3th tra nsition
area
Diameter 33mm
Diameter 44mm
1th tra nsition area
2th transition area
Rim
area
Lead-out
Zone
23080H PSN :
Inner Disc
Count Zone
27480H 2A480H 30000H
out
Outer Disc
Test Zone
261940H
263940H
260540H
Outer Disc
Count Zone
262940H
267940H
4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA,
LEAD-IN ZONE AND LEAD-OUT ZONE