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1-30. LISTA Sensitivity Adjustment and Detection (HDLP)
TP
TP405 : ATF ERR RPL/TRL
TP5
TG1
ADJ.
Service menu: A08: RPL GAIN HDL
(ATF GAIN)
MODE
PLAY
LISTA
AJ-HD1500 [100M:1800rpm]
TAPE
VFM3781KML (LISTA)
SPEC.
150 ± 15 mV/um
<<< 100M Mode ATF Error Signal Waveform >>>
<<< Differential Data >>>
<Sensitivity Detection Procedure>
1.
Open the SERVO ADJUST menu.
2.
Select A08: RPL GAIN HDL.
3.
Play Back the LISTA Alignment Tape.
4.
Select the item "<1> Sensitivity Measurement" on
the LISTA main menu, and then "1.2% Speed. . ."
appears on the screen. Press the Enter key, and
then start measurement of the sensitivity value.
(RF/EQ Board: Slot 1)
: R/P L HSW
(RF/EQ Board: Slot 1)
: GND (RF/EQ Board: Slot 1)
<< Sensitivity Measurement Finish >>
Sensitivity (100M)
Sens. L1
Sens. L2
1. Select "<3>AJ-HD1500" [100M: 1800rpm] on the
LISTA software.
2. Connect the LISTA cable to the Test Points.
3.
Open the SERVO ADJUST menu and select A08:
RPL GAIN HDL.
4.
Play back the LISTA Alignment Tape.
5.
Select the item "<6> ATF Error Signal Monitor" on
the LISTA main menu, and when message "1.2%
Speed. . ." appears, press the Enter key.
6.
Adjust EVR so that the "Sens. Value 1" on the
upper right corner of the screen is within the
specification.
7.
After the adjustment, press the ESC key to return
to the main menu.
Sens. Value: 150.61 mV/um
Sens. L1: 149.43 mV/um
Sens. L2: 151.78 mV/um
5.
Confirm the sensitivity value is within the
specification, when the message <<Sensitivity
Measurement
Sensitivity Value" are displayed on screen.
6.
If it is out of specification, repeat the step item 3,
4 and 5.
7.
If still out of specification, execute the "Sensitivity
Adjustment" again.
150.00 (mV/um)
149.50 (mV/um)
150.50 (mV/um)
MECH-19
To be changed
Cancel: Hit any key
Finish>>
and
"Sensitivity
Measurement Result
=
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