Pioneer PDR-04 - Manual (Page 83)

PDR-04
(10) Tracking Gain Adjustment Timing Chart
Optimum TEPP value : 2.494V ± 0.103V (2.372 to 2.649V)
1) Example of increasing gain to maximum after disc gain
became low
SSEL
TEPP 7 STEP I 13 STEP
Approx. 200ms \ \ Approx. 200ms
Optimum
TEPP
value
IT
2) Example of increasing gain after disc gain became low
Optimum
--------------------1^^ TEPP
TEPP
SSEL
7 STEP
I
9 STEP
Approx. 200ms r* ^Prox. 200ms ^
value
j IT
3) Example of decreasing gain to minimum after disc gain
became high
TEPP
SSEL
7 STEP 7 STEP
Optimum
TEPP
value
“*_Approx. 200ms Approx. 200ms
if
(11) Loading Control for Turn Table
Open/Close control and SW states
The following shows the chart of the loading-related
input/output pins.
Loading state
(input pin)
XCLMP
During loading
(Output pin)
LIN
LOUT
During open
(Output pin)
LIN
LOUT
Open
Time
♦
I
Loading
request
Middle Close
Time
t
Open
request
(12) Spindle Servo Mode Selection During CD-R, STOP PLAY Search Operations
500mS/div.
TER
Spindle
rotating
speed
CLV/CAV
EFM/
WOBBLE
Mode
LI
r_T
STOP] CAV |W| |W|EFMCLV|CAV|'^°fv‘-^ | EFM CLV |CAV
WOBBLi
CLV
I I I I
J___ -J_____ L
EFM CLV CAV STOP
I Spindle
acceleration
Focus
Search end
ON Track 1 search start
I Н М М
Search end Search end
STOP end
Track 10 1 search start Track 1 search start STO P start
SETUP TRACK 1 PLAY TRACK 10 PLAY TRACK 1 PLAY STOP
83