Panasonic RX-1950 User Manual

RX-1950 RX-1950
SCHEMATIC DIAGRAM MODEL RX-1950
IC1 IC2 arg Ic3 pe Notes:
AN7213 MA15OFV 2 1. $1: Band selector switch in “FM” Position.
FM
FRONT
END
“
2sK160
anne
Goan
2801623
RVDPR24340
RVILA3365
—_OA90_
(...FM,
3...AM).
a
\
IC}
Steg
a
co
ee
_
Fess
ta
2.
S2-1~S2-4:
Function
switch
in
“Tape”
Position.
(2...Tape, 3...Radio)
3. S3-1, S3-2: Mode switch in ‘‘Stereo” Position.
(2...Stereo, 3... Mono)
4. S4-1, S4-2: Tape selector switch in “Normal” Position.
(2...Normal, 3...Metal)
5. S5-1~S5-8: R/P switch in ““PLayback”’ Position.
(2...Playback, 3...Record)
e 4'] on Cee
6. S6: Motor switch.
7. VR1...... Balance control, VR2...... Voume control
(4)
VT1......VCO
Adjustment,
VT2......Bias
current
a Lt, Adjustment
|
8. DC voltage measurement are taken with electronics volt-
meter from negative terminal of battery.
[ ]...FM position, ( )...AM position
9. Battery current, NoSignal ...........c.cccceeceeceeeeeceees 47MA
Maximum Output (Radio) ecdcatuncios 65mA
C1K{00P
Maximum
Output
(Tape)
...............
152mA
BOTTOM VIEW
Sf (ood)
213213
CO) 3 |
: Turse] YT] DC IN SeSr[seesee S2-2
|
S6
part
=
§
?
Seals
000000
|S?2.-4
| (6V) =
T s2[ 208
Ss
64 344 000
S4 oy. (eee
$5-2_S5-3 S5-4
TEEERERSE
S5-5 $5-6 $5-7 S5-8
ty ae)
Cq10V 220
Sh 390
Ro)J270
ELECTRONIC
GOVERNOR
$5
= IC BLOCK DIAGRAM
RVDPR2434D IC3 RVILA3365
ESTE IND
10
RVDPR2434D ©
REC IND
D11
R109
470
|
REGULA
aa
pari
Ses
Q4.5
Q10~12
Q6~9
D4,
5
D6,
7
Q13,
16
Q14,
17
Q15,
18
Q20
Q21
@
2801623
2801623
2501623
MAt
193
MA27WB
28C1623
2SD601
2S8B709
2801623
MA27WB
280945
REC
AMP
AGC
DRIVER
POWER
AMP
POWERAMP
~~
SWITCHING
AOC
BIAS
OSC
Ic2
AN7220A
AMIE FM IF
Vian
ee
|
Cathode
SD
SS
ie
Anode S
:
Anoce
|
Cathode
OD
IC1
Ql,
3~20
D1,
11,6,
7,9
02
D4,
5
Q2

Panasonic RX-1950 Specifications

General

Type	Stereo Receiver
Tuning range	FM, MW
Power output	12 watts per channel into 8Ω (stereo)
Frequency response	30Hz to 16kHz
Total harmonic distortion	0.8%
Dimensions	430 x 136 x 248mm
Weight	5.8kg
Input sensitivity	2.5mV (MM)
Speaker load impedance	8 ohms