Panasonic RF-2200BS - Block Diagram Overview; Alignment Points Identification; Radio Alignment Procedures; Tuning, Meter, and Marker Adjustment

MI BLOCK DIAGRAM
= eat yk
2é7 ZNNA
a FM OSC FM DET OUT
—
|
es
‘wn
CERAMIC CERAMIC
FILTER FILTER
=
-
FM
RF
HF
FM
IF
FM
IF
.
ronan
IU
it
~
——
—
a
Ye mm
1
“MW GYRO ANTENNA
=
—I
MW
MIX/SW
2nd
MIX
MW OSC/SW
| DOUBLE TUNE aed oe
%
MW/SW
SW
Ist
SW
Ist
o.
AMP
5 AGC D. AGC
| RF GAIN SW Ist
CONTROL OSC
IC
% %
E DIVIDER ; DIVIDER
@ (6)
125kHz 500kHz
DET : - DET
DOUBLE TUNE
$3-1
CERAMIC
FILTER
DC 5V
tt ut?
ast
NAH
TUN/BATT/MARKER
METER INDICATOR
g
DE-EMPHASIS
DOUBLE TUNE $10-2
VOLUME
BASS TREBLE EP/EXT SP
REC OUT |
Fig. 20
M@ ALIGNMENT POINTS
MW ANT
550kHz
SWs ANT SWa ANT SW3 ANT SW2ANT SW: ANT = SWs OSC SW3 OSC
Snae 2g — Tae — gMHz 24Minz, — 1GMii2
ee i Ea Cas Cas Cus
2 zoe a eee
She UT
Zit Marker
=o Dae ©
Sie SN Oks ANT SW1 ANT SWs OSC Pot
22 re SWe ANT SW3 ANT — a 4MHz 20MHz 1S | eet AM3rd AM 2nd
Ta di as eater [Lal : scot 456KHz
til low [6] ii * Ta
| io! SW: OSC
| 8MHz 4MHz SW 2nd IF
we tT | SW 2nd IF [¢
Ercaes
|
eangoso
[Ls
Selb
co)
(a)
le
|
le]
2
;
2
MWOSC
AM4th
AMIst
ee | [Lis] 550kHz 455kHz 455kHz
1S | SWand iF
| rai a
: z 455kHz
|
oa [‘S)
|
ae
[S)
ontrol (P) (S)
; FM 2nd FM 2nd q
| sa ia Bat Bi :
' Ts T
FM ANT 7 _ ts
106MHz g
BFO (Rea)
le 7 S| 455kHz
L30
FM xe
(a) ah 9M
FM Ist ae FM OSC!
10.7MHz FM OSC eu
[tT] Ee ai ©, [C20]
Fig. 21.
Me
TUNING/BATTERY/MARKER
METER
ADJUSTMENT
1.
RADIO
RECEIVER
SETTING
2.
REMARKS
- Set bane switch to MW.
- Set volume control to MIN.
- Set power source voltage to DC 6V. fig. 22.
- Adjust Rs4 so that the pointer of
level meter stays as shown in
TUNING
BATTERY
Pointer
Fig. 22
RF-2200BS@