Teac TASCAM DA-P20 Service Manual page 54

OPTIONAL TRACK
(196 BLOCKS)
Head running direction :
ATF Field
(5 Blocks) Sub-code Field
a sal Blocks)
LT
Sub-code Field
(8 Blocks) ay Field
PCM Field
(5 Blocks)
(128 Blocks)
(a) Tape Format
Figure 1
FIELD DESCRIPTION NUMBER OF BLOCK
WARGNFIELE | MARGIN ane ieee
PRE-AMBLE
SUB-FIELD 1 SUB-DATA FIELD 1
POST-AMBLE 1
IBG 1
jens AFT FIELD 1 ATF 1
RUNNING 196
DIRECTION | WAIN FIELD PRE-AMBLE BLOCKS
MAIN DATA FIELD oe
IBG3
ATF FIELD 2 ATF 2
IBG 4
PRE-AMBLE 3
SUB-DATA FIELD 2
POST AMBLE 2
(b) Detail of One Track (196 biocks)
SUB-FIELD 2
Figure 2