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Modcl
35754
ADJUSTMENT
PBOCEDURES
5-37.
Panel
Meter/Analog
0utput
Adiustments.
5-38.
These adjustnrcnts
set
the
pattcl nleter
displays to
coinuide
rvith
lilc
anllog
oLrtputs.
a.
Set
A5S1
to
CAL
l.
Set
A65l
to
CAL
1.
b.
Record rcading
of
phase
panel Ineter
(right
nreter).
Reading shoukl be
approxiruately
180o.
c.
Set
A5Sl
ro
CAL
1. Set
A65l
to
CAL
L
d.
Rccord
rcading
of
phase
pancl
Ineter
(right
nreter)
next
to
recorded
rcadin.e
of
Step
b.
e.
Ad.just
422R5
oi
panel
ttreter
for
a readilg
ccrltered
bctweel tlle
readings
recordcd
in
Steps
b and
d.
l.
For
a
standard
illstrunlent
(oltc
panel
nletel)
sct
A5Sl
and
465I
to
NORI\{AL
(.1).
For
Optiorrs
001
-
003,
perform
Stcps
g
through
i.
g.
A5Sl
and
A6Sl
rcmairt
sel
lionr
Step
c.
Shorl
A9TPI
and
A
10TP1
togethcL.
h.
Adjust A22R5
ol
the
lelt
parrel
Ineter
until
rerding
is sanre as
that
ol
the right
patlel
neter.
i.
Sel
A5S
I
ard
A65
1
to
NOIiMAL
(4).
5-39. Amplitude 0ffset
Adiustmenl.
5-40.
This
adjustnlcnt
sets
tlle
dc
opcrating
point
of
the
Sunrnring
Amplifier
in the
Function
Switching Assentbll.
A8.
RECOMN,IENDED
TLST
EQUIPN'IENT:
Frecluency Synthesizer
(ip-
Model
3320B)*
DC
Digital Voltnretcr (Jrp-
Model 3.1508)
5O-Ohrn
Fccd-Thru
Ternrination
(-hp-
Modcl
1
10'18C)
a.
Conreut
50-ohnt
output
of
Frequency
Syrlthesizer,
tcrminrted
in
50-ohnr load,
to
the
chrnnel
B
input of
the
35754.
Conncct
the DC Digilal Voltnreter
to ATPl
pin
2
(Options
001
-
003:
Conrecr
DV\t
to
ANAI-OG
OUTPU'I
2).
b.
Set
the
-3575A
controls
iis
iirllo\\'s:
DISPL;\Y**.
.....ANIPLITUDT:
AMPi,ITUDEFT-]NCTIO\
.,.,,,..,..,.8
VoltageRange
.....01rnV'lV
(both cirlnnels)
FREQUEhVCY
RA\-GE . .
.
.
.
l0 llz-100ktlz
c. Set thc
Frequencl Synthesilcr amplitude
to
+
19.03 dBnr
(2
V rns/50
ohrrs)
and
frc(luenc)
to
1
kHz.
d.
Rccord the
DVM
readirtg:
mV
dc.
e.
Collnect
the DC
DiSilal
Voitnlcter
to
ANALOC
OUTPI]T
I
.
l.
Adjust
.{8R43
until
the DVM
indicatcs
the
valtLe
recorded itr Step d
10.1
mV
dc.
541.
Log
Amplif
ier
Adjustments.
5-,12.
These
adjustnrents
sc1
the dc
bils. !ain rnd
syrrlnlclr)
ol
the Log Anrpliiier
and Sytichron,rus
Rectifier
in
each
input
chlrnnel.
Thcse
are
the prinrury amplitude
accttlllcl
adjustnlellts
in
llte
i
struntcnt.
RLCONlN'IINDED TEST
t--QUIPN,lENT:
Frcqlrenc)
S)
nlhesirer
(-hp-
N'lodel
3320B)
DC
Digilal Voltmeter (Jrp-
Model
3450A)
Vrriable
AtlcnLralor
(-hp- Model
355D)
5O"Ohm
Feed-Thru
'fernriration
(Jrp-
Modcl
11048C)
NOTE
The
Jblktwitg
procetlute
is
pet.lbmrcd iirst
Jbr
clutntel B
ond
tlrc
agaitl
fitr
<ltatutel
A
Thc
tlrunncl
B
ddi6tnrcnts ate locut&l
ott
tlrc
chantcl
B
Log
Crnvcrter boartl,
A1.
Tha
charnel
A
aLljustnrcttts
urt
located
ott
tlrc
cha
ncl
A
ltry
Crttverter
boanl,13.
a.
Connect
thE
50-{)hnt
outpul
o[
the
F'rcquency
Synthcsizer
to
the
inpLrt
ol
the
Variable
Atlenurtor
(no
lelnrination
recluired).
Cotttrccl
llle outptlt of
the
Variable
Attenuator. tennirated
in
50-oltrn load,
to
the Channcl
B
input
ol
thc
3575A.
h.
Set
the
3575A controls
as
llllows:
DISPLAY*{'-
.....
A\TPLITUDE-
AMPLITUD|
FITN(ITION .
. .
.
. .
.
.
...8
Voltagc
Range
.
. . .
0.1 nr\r
-2
V
(bot1i clrannels)
FREQLILNCYRANGE
. .
...
10tlz'100kHz
PHASI:REFEIII:NCE
.
..............
A
c.
Set
the
Frecluertcy Synthesizer
anlplitude
to
+
19.03 dBnr
(l
V
rnrs/50 ohrtrs) and frcquenc.v
lo l0
kHz.
d.
Set
thc Variable
Atlcnuator
to 80
dB.
e.
Connecl
DC
Digital
Voltnleter
to
A3/A'ITP1.
i.
Adiust
Al/A2
R,10
(LOC
TPI
ADJ)
iirr
a
DVM
reading
of
0
\r
r
0.1
V
dc.
g.
Connect
DC Digital
Voltrneter
to
ATPl pin
22
(Channel
B) or
ATPl
pin
z
(Channcl
A).
Section
V
*A
Test Oscillator
such
as
the
hp-
lvlodel
65lBcanbeusedinplaceoftheFrequencySynthesizer.
**Options
001
003:
Set
the
AUPLITUDE
B/PHASE
switch to AMPLITUDE
B
5-n
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