LG RH1777, Service Manual

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4-22
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.
3) Layout of DVD+RW disc
Data Zone
Lead-in Zone
Unrecorded Disc
Lead-out Zone
Inner Disc
Test Zone
in
2A7C80H 2DC80H
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
2A480H PSN :
Inner Disc
Count Zone
30000H
out
Outer Disc
Test Zone
265940H
260540H
Outer Disc
Count Zone
262940H
266140H