Fostex CR200 Service Manual page 56

CR200
(10) Tracking Gain Adjusting Timing Chart
Optimum TEPP value : 2.494V ± 0.103V (2.372 - 2.649V)
1) Example when the gain increases to the maximum
after the disc gain decreases.
TEPP
7 STEP
About 200ms
SSEL
2) Example when the gain increases after the disc
gain decreases.
TEPP
7 STEP
About 200ms
SSEL
3) Example when the gain decreases to the minimum
after the disc gain increases.
TEPP
7 STEP
About 200ms
SSEL
(12) Spindle Servo Selection in STOP
TER
Spindle
rotation
speed
CVL (H)/
CAV (L)
EFM (H)/
WOBBLE (L)
MODE STOP
Focus
ON
SETUP
56
2.26V ± 0.103V (2.157 - 2.372V)
13 STEP
About 200ms
9 STEP
About 200ms
7 STEP
About 200ms
CAV
WOBBLE CLV WOBBLE CLV
CAV EFM CLV CAV
Accelerate
Spindle
Search
completed
Start searching
Start searching
track 1 track 10
TRACK 1 PLAY
(11) Loading Control for Turntable
OPEN/CLOSE control & SW condition
The figure below indicates the relationship of loading
input/output by the timing chart.
Optimum
Loading
TEPP value
condition
XCLMP
While
Loading
Optimum
LIN
TEPP value
LOUT
While
opening
LIN
LOUT
Optimum
TEPP value
PLAY SEARCH Operation on CD-R
WOBBLE
EFM CLV CAV
CLV
Search
completed
Start searching
track 1
TRACK 10 PLAY
OPEN In between
TIME
Loading request
WOBBLE
EFM CLV CAV
CLV
Search
completed
Start
STOP procedure
TRACK 1 PLAY
CLOSE
TIME
Open request
500ms/div.
1
2
3
4
STOP
STOP procedure
completed
STOP