Panasonic AJ-YA120AG, Руководство по обслуживанию

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MECH-24
1-34. LISTA Sensitivity Adjustment and Detection (DV)
TP
TP402 : ATF ERR PBR13
(RF/EQ Board: Slot 1)
TP2 : R/P R HSW (DV)
(RF/EQ Board: Slot 1)
ADJ.
(ATF GAIN)
Service menu: A12: RPR GAIN DV
MODE
PLAY
LISTA
AJ-HD1500 [50M: 9000rpm]
TAPE
VFM3000EDS (DV LISTA)
SPEC.
150 ± 30 mV/um
<Sensitivity Adjustment Procedure>
1. Select the AJ-HD1500 [50M: 9000rpm] on the
LISTA software.
2. Connect the LISTA cable to the Test Points.
3. Open the SERVO ADJUST menu and select
A12: RPR GAIN DV menu
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.
<Sensitivity Detection Procedure>
1. Open the SERVO ADJUST menu.
2. Select A12: RPR GAIN DV.
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.
5. Confirm the sensitivity value is within the
specification, when the message <<Sensitivity
Measurement Finish>> and “Sensitivity =
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.
To be changed
<<< 50M Mode ATF Error Signal Waveform >>>
<<< Differential Data >>>
Sens. Value: 150.61 mV/um
Sens. L1: 149.43 mV/um
Sens. L2: 151.78 mV/um
Cancel: Hit any key
<< Sensitivity Measurement Finish >>
Sensitivity (100M) 150.00 (mV/um)
Sens. L1
149.50 (mV/um)
Sens. L2 150.50 (mV/um)
Measurement Result