HP 8414A Operating And Service Manual page 27

Model 8414A
Section IV
Performance Tests
PERFORMANCE TEST
PROCEDURE:
a. If equipment was altered from previous test, repeat procedures in Paragraph 4-8 to obtain a trace
on the CRT's outer graticule circle.
b. Adjust the power supply to —5 volts. Apply —5 volts to MARKER input connector on Polar
Display and —5 volt return to chassis ground. Connect and disconnect —5 volts several times. Intensity of
CRT trace should brighten when —5 volts is applied.
c. Disconnect —5 volts from MARKER input connector and connect it to BLANKING input
connector. The trace should be blanked.
Table 4-2. Performance Test Record
Hewlett-Packard Model 8414A
Date:
Polar Display Test Performed bv:
Serial No.
Para Number
Specification Tested Measured
4-8
Error circle on CRT less than 3 mm radius.
Max. Error
4-9 Horizontal and Vertical output minimum bandwidth (3
Horiz.
dB) 10 kHz.
Bandwidth
Vert.
Bandwidth
4-10
-5V marker input intensifies CRT display.
-5V blanking input blanks CRT display.
4-5