4-4
IM 704420-01E
4.2
Turning ON/OFF the Equalizer
«For a functional description, see section 1.4.»
Keys
KEY
LOCK
MEAS
SET
AVE
/T
0
2
4
4
8
6
12
8
16
10
%
deg
%
20
180
us
ms
ns
MEAS
x1
3TCD
xN
3TCD
xN
BI-PHASE
SPEED
DELAY
GATE TIME
FUNC
GATE
LOCAL
DATA
SCALE
PRESET
PHASE
10
20
TRIG
CLOCK
PHASE
AUTO MAN
GP-IB
REMOTE
EQLZ
LEVEL
PLL
SHIFT
ARM
INH
DtoC
DVD
0.1s
0.5s
MAN
UTILITY
OPTION
10
5
σ
σ
Procedure
Turning ON the equalizer
Press the SHIFT+DATA (EQLZ) key. The EQLZ indicator lights and the equalizer
turns ON.
Turning OFF the equalizer
Press the SHIFT+DATA (EQLZ) key when the equalizer is ON. The EQLZ indicator
turns OFF and the equalizer turns OFF.
Explanation
When the equalizer is turned ON, you can equalize (compensate) the signal amplitude of
the high frequency region.
The signal amplitude in the high frequency region attenuates due to the frequency
characteristics of the optical pickup. By passing the RF signal that is applied to the RF
input connector through the equalizer, we can obtain a signal that has frequency
characteristics that do not attenuate up to the high frequency region (better frequency
characteristics than the optical pickup). By equalizing the RF signal, you can make more
accurate measurements.
Note
The frequency characteristics of the equalizer built into the TA120E comply with the
characteristics of the single-speed DVD specification (JIS X 6241 : 1997).
