Panasonic RF-2200BS - General Alignment Instructions; MW and SW Band Alignment; BFO and MW-RF Alignment; SW IF and OSC Alignment

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— nr TOCSY
M@ ALIGNMENT INSTRUCTIONS
Ai
READ
CAREFULLY
BEFORE
ATTEMPTING
ALIGNMENT
8.
Set
FM
AFC/Band
width
switch
to
narrow,
OFF
position
for
the
BFO
and
FM
adjustment,
and
to
wide
ON
position
for
other
adjustment.
9. Set X-TAL Marker switch to OFF.
10. Set BFO switch to ON position for BFO adjustment, and
to OFF position for other adjustment.
11. Output of signal generator should be no higher than
necessary to obtain an output reading.
. Set volume control to maximum.
. Set power switch to ON.
. Set bass and treble control to maximum.
. Set band switch to MW, SW or FM.
. Set SW band switch to SW:1, SW2, SW3, SWa, SWs or
SWe.
Set MW/SW REF gain control to high.
Set power source voltage to DC 6V.
HM MW, SW ALIGNMEMT
SIGNAL GENERATOR or
SWEEP GENERATOR
CONNECTIONS FREQUENCY
On Bm Oh —
aS
INDICATOR
RADIO DIAL
(VTVM or SCOPE)
Bene
SETTING
AM-IF ALIGNMENT
Fashion loop of
several turns of
(1)
wire
and
radiate
signal
into
loop
of
receiver.
Point of non-
interference.
455 kHz
30% Mod.
at 400 Hz
Output meter across
voice coil.
BFO ALIGNMENT
| ‘Audio output from
| 550 kHz Output meter
" pee ANZ {Refer to Mae) Sess ot
1500 kH
(4)
|
MW
”
1500
kHz
”
(Refer to fig.30)
ADJUSTMENT
Ts (AM 1st IFT)
Ta (AM 2nd IFT)
Ts (AM 3rd IFT)
Ts (AM 4th IFT)
T7 (AM 5th IFT)
L30 (BFO OSC Coil)
Ls (MW OSC Goil)
Ls (MW ANT Coil)
C2s (MW OSC
Trimmer)
Ce1 (MW ANT
~ Trimmer)
| SW-1st IF and 2nd OSC ALIGNMENT
Connect to test point .
(5)
through
ceramic
1.985
MHz
Point
of
non-
,
capacitor
(10PF).
.
interference.
Negative
side
to
point[E]
|
M@ PADDING ALIGNMENT
-
When
you
change
variable
capacitor
please
adjust
as
follows.
La (2nd OSC Coil)
Lis (SW 1st IF Coil)
Lia (SW 1st IF Coil)
1.
Solder
padding
capacitors
at
the
position,
as
shown
in
fig.
25
according
to
the
following
table.
27 PF, SOWV, +5%, Mica
10 PF, 50WV, +10%, Ceramic
C210 (SW3 ECMS05270JH
C211 (SWs) ECCD1H100KC
2, Adjust the RF circuit of SW:1, SW3 and SWs.
3.
Set
125
marker
switch
to
ON
position
and
then
check
zero
beat
as
following
frequencies.
Radio
Dial
Setting
Turn spread dial two times from 4 MHz position and set it to 0 kHz.
Turn spread dial two times from 12 MHz position and set it to 0 kHz.
Turn spread dial two times from 20 MHz position and set it to 0 kHz.
Capacitor.
Spread Dial Part No.
less than 960 kHz ECQS05821JZ
Ci 960~~980 kHz CQS05102JZ
mym
o*
CMS05152JZ
ECQS05182JZ
| ECCE1H100KC
a
SW:
ECMS05220JH
C
one en 20~40 kHz
SWs
ECMS05330JH
more than 40 kHz | ECMS05470JH
ECCD1H040C
tee ECCD1H070DC
|
me
ECMS05150JH
RF-2200BS@
Cii7
(SW1)
ECQS05122JZ
1200
PF,
50
WV,
+5%,
Styrol
)
4.
lf
there
is
difference
between
spread
dial
indication
and
the
frequency
of
following
table,
please
change
proper
Description
820 PF, 50WV, +5% Styrol
1000PF, 50WV, +5%, Styrol
1500PF, 50WV, +5%, Mica
1800PF, 50WV, +5%, Styrol
1OPF, 50WV, +10%, Ceramic .
22PF, 50WV, +5%, Mica
33PF, 50WV, +5%, Mica
47PF, 50WV, +5%, Mica
4PF, 50WV, +0.25PF, Ceramic
7PF, 50W
15PF, 50WV, +5%, Mica
18PF, 50WV, +5%, Mica
V, +0.5PF, Ceramic
REMARKS
| 1. Set band width switch
to narrow and adjust for
maximum output.
2. Set band width switch
to wide.
3. Adjust for maximum
output.
Adjust for zero
beat.
Adjust for maximum
output.
Adjust for maximum
output.
Repeat steps (3)
and (4).
Adjust for maximum
output.