Panasonic RX-1950 - Block Diagram

m FM MPX ADJUSTMENT
FM SIGNAL
GENERATOR
EQUIPMENT
CONNECTION
SOURCE ELECTRONIC
ADJUSTMENT
CONNECTION COUNTER
Adjustment
V
...(+)
side
3
MEASUREMENT
ADJUSTMENT
|
INPUT
POINT
SPECIFICATION
POINT
REMARKS
sea
|
|
Record
mode.
eee
ala
54.0kHz+0.2kHz
|
L10
Stereo
mode.
Vv.
|
Tape
Selector
Normal
Bias
current
—
VT2
|
DIAL THREADING
SPECIFICATION
REMARKS
Adjust VR1 for 19kHz
(+150 Hz) reading on
electronics counter.
Record mode.
4.0+0.3mV
Tape
Selector
Normal
4JALIGNMENT POINTS
Note:
Please
refer
to
Circuit
Board
and
Wiring
Connection
Diagram
in
which
test
point
are
located.
AM
ANT
AM
ANT
AM
OSC
AM
OSC
FM
TUNE
550kHz
1500kHz
511kHz
1650kHz
90MHz
[ers | [15 | [ota] [ita _
FM 1st
10.7MHz
to
OF
ASD
ie
ca
hr
__\_/
2
—
r / hoy FM TUNE
WD) Gy | 106MHz QQ
fj
O
FM MPX a ®
==
KL
FM
OSC
|
|
se
Q
©
NN
ed
g
109.2MHz
>
WV
CT2
AM
IFT
i
“el
vy
|
72
|
D
Bias
OSC
FMOSC
B
FM
2nd
87.2MHz
éareni
Frequency
10.7MHz
|
110
|
Ps
|
|
Pp
:
|
£
:
[Fig.
17]
[Fig.
16]
RX-1950 | RX-1950 4.
BLOCK DIAGRAM
[RADID}
TELESCOPIC ANTENNA
IC1 CF2
IC2
T Q1
CONV IC3 PLL MPX
1) (6) (5) Rech
L_| ly 3
Mf
|
¥
MG
7
D3
STEREO
IND(Q)
-
ig am ea | 5 $32
CF1
o~
:
[AUDI9]
.
(RECORDING)
nee RADIO
MIC
JACK
a4
S2-3
Q6,
7
VOLUME
ao
‘a.
HEADPHONES
M
tee
HEADPHONE
AMP
Q10,
11
Leh
BALANCE VR
BUILT IN MIC
me Q21 Lch
Rech | : BIAS OSC
o>
v
6 $3-2
R/P
HEAD
Q20
O
+B
.
BEAT
PROOF
-
¢
Lech
(PLAY :3ACK) RADIO
Q4
RiP
HEAD
HEADPHONES
Q13, 14, 15 |
HEADPHONE |
AMP aaa
ee ANT
Lch
[POWER SUPPLY]
DC IN S6
( ) C ) e
|
Q19
Le
eee
POWER
IND
C ) a :
T
e
;
‘Batt
[924
|
MOTOR
©
aw
+B
@y
us
CONTROL
.
[
C4
|
\
= &
[Fig. 18]