Panasonic AJ-HDC27VP, Руководство по обслуживанию

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MECH-30
6. After finish the Linearity Adjustment, measure the numerical value of linearity and waving.
Waving Measurement Procedures
1. Press “SPACE” key to perform the Peak Hold in 30 seconds when linearity is displayed.
2. After finish the Peak Hold, press “SHIFT” and “ } ” key simultaneously on the Key Board, then the numerical
values of “Linearity” and “Waving” is displayed on left lower portion of screen. And confirm the numerical values
are in the specification. Also confirm the waving is same level from entrance side to exit side. If the “Linearity”
and “Waving” are out of specification and also it caused by insufficient limit of entrance or exit side of envelope,
adjust height of S1 and T1 post.
3. After this measurement is finished, press the ESC key to return to the main menu.
Information : How to save the LISTA Data
Linearity waveform data and measurement value of linearity and waving can be saved as one file data to PC.
1. Basically this operation should be performed after linearity and waving measurement is finished.
2. Select the item “<3> Data Save/Load” on the LISTA main menu, and select the item “<1> Save”.
3. The linearity waveform as Peak Hold is displayed on the screen, and message “File Name?” appears on the
screen. Then entry the File Name less than 8 letters. And after message “Comment?” appears on the screen,
then entry the Comment less than 20 letters. As comment, entry the Serial Number, Model Number, Head
Rotation Hours etc to use them for management of each VTR’s linearity data.
4. After completion of saving, select the item “<2> Load” of the item “<3> Data Save/Load”, then the saved File
Name appears on the screen. And select previously saved file to confirm the waveform and numerical value is
displayed correctly. By pressing “SHIFT” and “ } ” key simultaneously on the Key Board, the numerical values of
“Linearity” and “Waving” is displayed on left lower portion of screen.
POINT :
The part of left side of waveform (entrance side) is adjusted by height of S1 post and part of right side of
waveform (exit side) is adjusted by height of T1 post.
Lower part of above waveform of figure is displayed lead of Cylinder.
When the post driver is removed from upper part of post, linearity waveform may be changed.
After finish this adjustment, eject the tape and insert the tape again to confirm the shape of linearity waveform
isn’t changed.
Confirm this value