PT 5201
PTV
Operating Instructions
Operating Manual
Revision 2
6-9
6.5.2.3.5
System
The System menu enables you to calibrate the main oscillator using this PC Remote Control.
Also all video outputs can be set to the same TV system (NTSC/PAL) during a Factory Reset.
Performing a Factory Reset replace all current settings with the settings the unit has from
factory and will not affect any of the four user presets.
Factory Reset:
Factory Reset overwrites all current settings with the settings the unit has
from factory.
The reset is selectable between:
NTSC 7.5%
,
NTSC 0%
or
PAL
The factory settings are listed in 11.4 Reset Configuration.
Note:
Factory Reset will not affect the memory of any of the four user presets.
Calibration:
The calibration menu enables you to calibrate the unit without taking it out
of a rack and out of service. The unit is calibrated using this PC Remote
Control and a general-purpose counter connected to the BB1 terminal.
This adjustment will affect the frequency of the main oscillator only; no
other circuits needs frequent calibration. To secure the factory calibration
the unit is secured with a calibration lock function
Calibration procedure:
1. Turn on the unit and connect it to a PC running the PC Remote Control program.
2. Connect a general purpose counter (better than 0.1ppm in tolerance) to the Black Burst
output.
3. Unlock the calibration mode in Files/Properties/System and enter the calibration menu at
Edit/System/Calibration
4. Click on Unlock and expect a TTL clock at 4.5 MHz on the BB1 connector. There is now
access to calibrate the main oscillator and using the up/down buttons to calibrate the BB1
outputs to 4,500,000 Hz.
5. The calibration is stored in the unit by clicking on Save. By clicking on Cancel at any time
before clicking on Save the calibration mode will be terminated and the unit will hold the
present calibration.
Note
: Make sure to lock the calibration mode in Files/Properties/System to ensure no calibration
is made by mistake.
6.5.2.4
View Menu
6.5.2.4.1
System Status:
The System Status window will expand the Front Panel window and provide a view of settings
of all outputs.
Besides information on timing, pattern and audio types and tones, the System Status gives
information on instrument serial no., SW release, Preset Status and serial communication
(SCPI) status.
Editing of the settings is accessible by double click on each generator. By double click on a
generator the corresponding generator window opens and enables editing.
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