Tektronix 5000 Series User Manual

4634 SCAN RATE CALIBRATION ( CONTINUED )
C
R50
CCW Vertical Field Position
R20
CW Top
Field Blanking
CWA
CCW
R11
Vertical
Size
CH
max ,
CW
CCW
R50
Left Line
Blanking
CW CCW
R40
Right
Line
Blanking
CCW
CW
R70
Horizontal
Position
R27
Horizontal
Size
CW
max .
CCW
CW
R19
Bottom Field
Blanking
Figure 2 : Effects of Controls on Copy
1 .
2 .
3 .
Remove the cabinet top to access the timing board .
Set the back
panel IMAGE switch to the " NORM " position . This allows the horizontal
and vertical intervals to appear in the margins of the copy . Connect
the interface cable , power cord and perform any other preliminaries
warranted by the installation . Allow the hardcopy unit sufficient
time
to
warm
up
.
Remove all the blanking to see the true image size .
This is
done by
turning
R19 , R20
, R40
and R50
fully clockwise
.
Before adjusting the horizontal image size , be aware of the system's
aspect
ratio
.
This determines the maximum image size on the hardcopy .
For an aspect ratio of 3 : 4 , adjust R27 for a horizontal image size of
8 inches ( 6 inch vertical : 8 inch horizontal ) . For an aspect ratio
of 1 : 2 , adjust R27 for , again , an 8 inch horizontal size ( 4 inch vert
ical : 8 inch horizontal ) . For a ratio of 1 : 1 , adjust for 6 inches
( 6 inch vertical : 6 inch horizontal ) . Other aspect ratios are similarly
accommodated within the dimension specifications given in the 4634
Instruction Manual .
a .
The horizontal size may be quickly approximated by monitoring
the d.c. voltage at TP30 while the instrument is in copy mode .
Approximate voltages for some of the more common scan rates are :
TP30
40.3V
40.6V
41.5V
86. OV
Scan
Rate
625/50
525/60
4027
Interface
1029/60
( continued on the following page )
-34
June 27 ,
1980
Issue 10-13

Tektronix 5000 Series Specifications

General

Brand	Tektronix
Model	5000 Series
Category	Test Equipment
Language	English