Schematic Diagram - Sony ICF-SW20 Service Manual

3-2. SCHEMATIC DIAGRAM
10 11
12 13 14
pa araese oe
Al N B OA R D
7p (US, CANADIAN, E MODEL)
' A
12p (AEP, UK, ITALIAN, SAUDI ARABIA MODEL}
A
L14
MW FERRITE-ROD
ANT1 ANT
EM
TELESCOPIC
ANTENNA
6
R33. dy) |
33k :
R1
oy
A
2SC2223
1s8379
as
—s\ 'e
US,
E>
CANADIAN,
E MODEL B
;
1 > 2035p 4095 =p Gap 7 0.82,H &
5)
Si-1
7)
Lt
swi
ANT
L2 L3 L4 Lo L6 L7
Sw2 SW4 SW5 SW5& SW7
ANT ANT ANT ANT ANT
2$8815
SWITCHING
4.7.4/6.3V (US, CANADIAN, E MODEL)
3.3.4/35V (AEP, UK, ITALIAN, SAUDI ARABIA MODEL)
==
B+
R113
1K SADE | Rog c103
: Ik 0. 047
0 T. 0
(0)
((0))
te)
a RIO le y=
De
[SWITCH BOARD]
R103
2. 2k
C108 0. O1«
ALL
(om Kem os
a) (2.9)
CF77392NC We
CONTROLLER LED ON: 0.1
OFF RES RxO CRO TP 0.01, (US, CANADIAN, E MODEL)
0.0047, (AEP, UK, ITALIAN, SAUDI ARABIA MODEL)
Qi4
DTC 144EK
SWITCHING
Mn
01 oy
(0)
e Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark: FM
Note:
@ All capacitors are in uF unless otherwise noted. pF: wuF
SOWV or less are not indicated except for electrolytics
and tantalums. ( ): MW
@ All resistors are in 2 and '/,W or less unless otherwise ( )): SW
== specified. < >: OFF
LED ON: 0.1
$2
NEWS a MUSIC
0.022, (US, CANADIAN, E MODEL)
0.0047;,, (AEP. UK, ITALIAN, SAUDI ARABIA MODEL)
FM/AM FRONT-END/IF AMP/DET
AM AMP
US.
CANADIAN,
E MODEL
"Pac "Frac Out
(EARPHONE)
ORY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS, 3V
Voltages are taken with a VOM (50 kQ/V)..
Voltage variations may be noted due to normal: produc-
tion tolerances. | :
Signal path.
c> :FM
15