HP 5245L Service Manual

Section III
Table
3-2
Table
3-2. In-Cabinet Performance
Check
(cont'd)
2. TIME
BASE-Output-FRONT
PANEL:
0.
1
Hz to
1
MHz
in
decade
stepsl
1V
peak-to-peak. (See
specifications
Table
1-1.
)
a.
Set Counter
controls
as follows:
SAMPLE
RATE slightly
clockwise
out of
POWER
OFF
TIME
BASE
to 1
prs
FUNCTION
to
FREQUENCY
b.
Connect
Oscilloscope
to EXT
input
jack.
c. Oscilloscope
should
display
1
MHz rectangular wave of
1V
peak-to-peak.
Record on test
card
the
frequency and
amplitude
of
the
TIME BASE
output.
d.
Set the TIME BASE
switch to
each
position,
10
ps
through
10s. The displayed frequency
should
decrease
by
a
factor
of
10
for
each
successive setting of the TIME
BASE. The amplitude
should
be
lV
peak-to-peak
for
all
settings.
Record
on
test
card frequency
and amplitude
of TIME BASE
output for
each
successive
setting.
3.
TIME
BASE-Output-REAR
PANEL:
0.
1
Hz to
10
MHz in
decade
steps 5V
peak-to-peak
rectangular
wave with
1000-Q source at
1
MHz
and lower;
1V
rms
sine
wave
with
1000-Q source
impedance
only
at
10
MHz.
(see
specifications
Table
1-1.)
a. Set
Counter
controls
as follows:
SAMPLE
RATE
slightly cloclsvise
out of POWER
OFF
MODE
(rear
panel)
to
INT
STD
FREQ
OUTPUT
(rear
panel)
to
10
MHz
10
b.
Connect
Oscilloscope
to the
OUTPUT connector
(,15)
on the rear
panel.
c. Oscilloscope
should
display
10
MHz
at
1V
rms.
Record
the frequency
and
amplitude
on test
card.
d.
Set the OUTPUT
switch
to
each
position,
1
MHz
102 through
. 1
Hz
109.
The
displayed
frequency
should decrease
by a factor
of
10
for
each
successive
setting
of the OUTPUT
switch.
INPUT ATTENUATION
1. Range:
Three ranges
0.1,
1.0,
and
10 volts.
a. Set
Counter
controls
as
follows:
SENSITIVIIYto.IVOLT
SAMPLE
RATE slightty clockwise
out
of
POWER
OFF
TIME
BASE
to
. 1s
FUNCTION
to
FREQUENCY
-
LEVEL
+
to
PRESET
b.
Connect
Oscillator
to
Counter
DC
SIGNAL
INPUT.
Set Oscillator
for
100
kHz
at 100 mV
(.
1V) rms. Counter
should
count
and
display
100
kHz.
c.
Change
Counter
SENSITryITY
to
1.
0
volt.
Increase
Oscillator
output
to 100
kHz
at
1V rms.
The
Counter
should
count
and display
100
kHz.
Record
results
on test
card.
d.
Change
Counter
SENSITIVITY
to
10 volts.
Increase
Osciltator
output to
100
kHz
at 10V rms.
The
Counter
should
count
and
display
100
kHz. Record
results
on test
card.
DISPTAY
STORAGE
a.
Set Counter
controls
as follows:
SENSITIVIIY
to CHECK
SAMPLE
RATE
slightly clockwise
out of
POWER
OFF
TIME
BASE to
.1s
FUNCTION
to FREQUENCY
STORAGE
(rear
panel)
to OFF
-
LEVEL
+
to
PRESET
Model
5245L
3-8
02349-1

HP 5245L Specifications

General

Brand	HP
Model	5245L
Category	Cash Counter
Language	English