Panasonic RX-C300 - Schematic Diagram

IC2 BA4234L
AMOSC AMIN
IC1 RVITA7358P
iIC4 RVIBA328MR
PLL F
SEPARATION EEPIELER
CONTROL PLL FILTER
L OUT
R ouT (5)
LAMP FILTER
(16) vco
MONO
LAMP OUT
Ae3 RVITA7358P
fo Be8 BA4234L
CHECK (2) ‘is ceed Ce7 RVIBA1332L
+Vec De3 RVIBA328MR
mee © Be6 2SC1359B
D:8 2SA564R
Fe8 2SC1740R
E6 2SC1740R
E6 2SC1740R
Ce9 2SA564R
Be4 MA840B
Be4 MA165
Notes: BeG MA165
1. $18, S19: Band switch in ‘‘FM” position. ie ries el
(S18-1, S18-2...FM, S19-1...AM) Ess RVDOMTze6ReB
2. $22~S24: Function switch. E-8 MA165
(S22-1~S22-4... TAPE, S23-1~S23-3...PHONO,
$24-1~S24-3...LINE/CD)
3. S25-1, S25-2: FM Mode/Beat Proof switch in
“STEREO/I” position
(1... STEREO/I, 3... MONO/II)
4. VR1: VCO adjustment.
5. DC voltage measurement are taken with electronics voltmeter
from negative terminal of battery.
< >...FM,( )...AM, No mark... Phono
=== ) Voltage Line
eaaa=p FM Signal Line
c=» Tape/Phono/Radio/CD/LINE IN
Varicap Zener
Anode Anode
GND FMIFIN BYPASS AF OUT MUTE
15 DG Ore] 0] 0 ead a GL Ox10]0)
AGC
AM Vec AM MIXOUT AMIFIN BYPASS FM QUAD Vcc AMDET OUT AMAF IN GND
FM FRONT END
FM IF DET AM OSC IF
FM MPX
PHONO AMP.
FM IF AMP
MUTING
REGULATOR
BUFFER AMP
BUFFER AMP
SWITCHING
AFC
AGC
SWITCHING
TUNING IND
FM ST IND
ZENER
SWITCHING
General
Anode
TELESC
ANTENNA
SCHEMATIC DIAGRAM (Tuner
OPIC
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Pleomax
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=
3
200mV
AC,
=
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c
(47KQ..0VER)
1
ned
2
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S242
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2
-
24-3
20:
sists
3
&
|
530
53
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+
i
PHONO
EARTH
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E
Photo
Diode
NN
F
Cathode
Cathode
fit
Cathode
Anode Cathode
—12—