Heathkit GR-78 - Page 16

Page 80
"TUNE
SIGNAL
SeTBANO
|
SETRECEIVER
|
ADJUST
FOR
MAXIMUM
GENERATOR
TO:
switch
To:
|
DIAL
To:
METER
READING
O8C col wnt
ton tard
F ANTENNA tinmer
RF trimmer
{4.094 Ms mine ol
INOTE: If you do not obtain this
ok
within
one
full
rotation
in
‘thr diection, you may have the
feiator sat to an nage
frequeney. Retane the osclator
trimer eapeetor for another tone
tnd then repeat mixer ch
F ANTENNA coll
FF col
"2. Repeat sep 28 through
231 umn further
Jmpcowemant notes,
“This completes the Allgnmant With Isruments Proce to
th BFO Alignment.
BFO ALIGNMENT
ate 0 Figur 6 fr the folowing steps.
(C)-Remove the cabinet top frm the cha
() Sethe controle and etches lis:
[BANDSPREAD-Aullycountcockwis
AF GAIN-OFF.
RE GAIN=fullycockole
Rev.sTBy-RCV,
‘CAL-to postion opposite CAL,
AM-GWISSB-AM,
AVEMVC-AVC,
‘ANLOFF-OFF.
[BAND--to Band 8 potion.
(0) Me ste the speakers connected tothe chasis
1.) Turmon the Reeser
(.)
Tun
in
8
broneart
station
with
the
TUNING
conta
nt
masa
readings
indicated
on
the
meter,
|)
Pe
the
AML-CW/SSB
saith
in
the
CW/SSB
potion.
‘Aloud
tone
of
squad
should
be
heard
trom
the
speaker
NOTE: Do not rotate the sug more than one tur nether
ration when meking the fllowing alignment
> Arert the lignan to! inthe su of BF oot 401.
Showy rotate the aigumert too in one direction and
lita Yor «deen in pitch and volume of the tone.
‘the volime end piteh seer 10 increase, rotate the
‘Sgnment tol inthe oppose direction. Siwy rotate
the algnment tool unt the tone stops or sounds ike
an itrmittent grow (aro bat)