Wavetek 171 - Page 8

2.1
UNPACKING INSPECTION
After
carefully
unpacking
the
instrument,
inspect
the
exter-
nal
parts
for
damage
to
knobs,
dials, indicators, surface areas,
etc.
If
there
is
damage, file a claim with
the
carrier
who
transported
the
instrument.
Retain
the
shipping
container
and
packing material
for
use in case reshipment
is
required.
2.2
PREPARATION FOR
USE
Before
connecting
the
instrument
to
line power, be sure
the
rear panel
115/230V
and
HI/LO
switches are
set
to
the
value
nearest
the
line voltage
and
that
the
fuse
is
correct
for
the
switch setting.
Be
sure
that
the
plug on
the
power
cord
is
the
proper
mate
for
the
line receptacle.
AC Line
Voltage
Switch
A
Switch
B
Fuse (SB)
90
-
110
115
LO
3/8
amp
105
- 125 115
HI
3/8
amp
180
-
220
230
LO
3/16
amp
210 - 250 230
HI
3/16
amp
2.3
ELECTRICAL
ACCEPTANCE CHECK
This
checkout
procedure
verifies
the
generator
operation.
If
a
malfunction
is
found,
refer
to
the
Warranty
in
the
front
of
the
manual. An oscilloscope,
counter,
three
short
lengths
of
50Q
coax
cable, a
SQQ
feedthru
load
and
a
0
to
±2V
SECTION
2
INITIAL
PREPARATION
voltage source are
required
(figure
2-1).
Circled
numbers
index
controls
and
connectors
to
figure
3-1.
1.
Preset
the
generator
front
panel
controls
as follows:
Control
Frequency
Dial
G)
FREOMULT
Digital
Switch
©
DC
OFFSET
Waveform
Selector
AMPLITUDE
ATTENUATION
Dial/Digital
Switch
MODEL
171
0
son
OUT
....
VCG
lN
c'>
VOLTAGE
SOURCE
•
TTL
OUT
®
@
Position
1.0
X1K
1.9999
OFF
'\,
Full
cw
0
Toward
Dial
OSCILLOSCOPE
I
I
I
I
I
son
I
LOAD
I
I
...,
COUNTER
Figure 2-1.
Performance
Checkout
Setup
Table 2-1.
Performance
Checkout
Step
2
Control Position/Ope ration
Function
Adjust
the
oscilloscope for several cycles
of
sine
wave.
Waveform
Selector
"v
I
~I
DC,'\,
Amplitude
I
AMPLITUDE
Ccw
to
12
o'clock
Observe
Waveform changes from
'\,
to
"v
to
~
to
a
OV
de
level
then
'-1
.
Waveform
amplitude
reduces.
2-1