HP 5304A - Page 56

Model 5.J04A
Maintenance
Table 9D-5-1. In-Cabinet Perfomrance Checks (Continued)
6. Totalizing (OPEN/CLOSE A) Measurements.
Obtain the following test equipment:
HP Model 65IB Test Oscillator.
HP Model U048B 50-0hm Feed-thru
Termination.
a. Connect 651B 50-0hm output, set to
10 Hz at 100 mV rms, to 5304A Chan-
nel A INPUT connector.
b. Set Channel A ATTEN switch to X100,
AC-DC to AC; SLOPE to • and LEVEL
toPSET.
c. Set "Function" switch to OPEN/CLOSE
A.
d. Instrument gate is controlled by oper-
ator when OPEN/CLOSE A pushbutton
is pressed.
e. Press OPEN/CLOSE A switch; ft MX) A C
lamp will tum on; adjust Channel A
ATTEN to Xl; 5300A display should
accumulate.
f. To stop 5300A from accumulating, press
OPEN/CLOSE A. To continue accumu-
lation from the number displayed press
OPEN/CLOSE A, otherwise press
RESET to clear display.
90-5-19