Heathkit GR-54 - Initial Test; Control Settings; Power-On Procedure; Alignment Without Instruments

Hany difficulty is encountered in the following
steps, turn the Receiver off immediately and
refer to the In Case Of Difficulty section of the
manual,
Set the front panel controls to the following po-
sitions:
BANDSPREAD, ,...,.Adjusttothe SET position
on the Bandspread dial,
AF GAIN, ,.cccscesessecvcceseees OFF,
RF GAIN ..........2..... full clockwise,
ANT TRIM aoaeetsepepenoesupteeeaeneest full clockwise,
MODES 6 so siie Gea teceviese:& ates ee doce eee ele MS
BAND og: ia. oo té: calc waeaece: oe elena Scene elece wee
MAIN TUNING, eee 8 #@ ee ee Oe . - 1000 KC,
AU
AVG aie ceo as ei ee ee eucale bla ara a wae ON,
AND Sg asd: hice! & se eiece we eens. esi ae a OFF,
OPR
ptieie Ol tel
( ) Plug the line cord into a 105-125 volt, 50/60
eps AC electrical outlet,
( ) Turn the Receiver on with the AF GAIN
control, Both aes ae ae light and
21
the filaments
ALIGNMENT WITHOUT
Refer to Figure 2 (fold-out from Page 47),
The alignment of this Receiver without test
instruments is accomplished by using signals of
known frequencies from radio stations, For best
results, an external antenna should be used, If
te wmaneee nee itiathl -~ —
an antenna is not already available, refer to
Antenna
Installation
on
Page
51,
If
a
VTVM
is
available,
it
can
be
used
in
place
of
the
tuning
meter,
Sat
the
VTYM
to
read
_1n0
to
-15
volts
DC,
Connect
the
common
test
lead
to
the
chassis
and
the
DC
test
lead
to
point
X
on
the
IF
-audio.
circuit
board,
During
alignment,
refer
to
the
VTVM
reading
in
place
of
the
tun-
ing
meter,
ir
Ww Oo Warm up for at ieast
5 minutes before aligning to allow the tubes
and components to stabilize,
+ oh RT a
( } Turn the AF GAIN control clockwise and
listen for background noise from the speaker,
( ) If an external antenna is available, plug
the lead-in from the antenna into the ANT
socket, Refer to Page 50 for piug wiring,
Numerous stations should be heard as the
MAIN TTINTN YS? Ilnah ie tuens
RTA SRR ER BAF LL LL eg
{ ) Unplug the antenna lead-in,
( ) Set the BAND switch to C.
( } Make sure the AVC switch is ON and the
RF GA control is fully clockwise,
( ) Turn the METER ADJUST control (located
on the rear panei) with a screwdriver untii
the tuning meter (located on the front panel)
reads zero
Aa cia Ue
This completes the Initial Test. If a vacuum
tube voltmeter and signal generator are avail-
able, proceed tothe Alignment With Instruments,
on Page 43, If these instruments are not avail-
able, refer to the section of the manual titled
Zo. wk TH2it. 4 TW.
Alignment ¥¥ LLHLOUL Instruments,
INSTRUMENTS
alignment tool will be used to adjust the
slugs inside the coils, Use the short end
of the tool, The tape will show how fara
Slug has been turned,
TAPE
Figure 3
Set the front panel controls as follows:
BANDSPREAD ,..... .adjust for a SET (0
position) indication on the Bandspread dial,
AF GAIN, « e+ ee emidposition (adjust
; uring alignment).
RF GAIN eso @#teeseeteteeteatrenes full clockwise,
ANT TRIM ses rseseseseeresersas et full clockwise,
MODE, es ¢ 8 # # 8 #8 eb 9g elesate See tae ele ee As
BANDS se oc fe. wg Bi ae ertetenaterae ive eue. aw ave De
AVC wide hoe aoe a ane we ob Seca ONS
ANL, e@ete@#estepeeteteee ee epteese epee epaees OFF,
OPT ome ia. a: a dle le aa ere eee aE cle ae Ps
External antenna plugged in,