Sony ICF-SW10 - Schematic Diagram

4-2. SCHEMATIC DIAGRAM
1 2 3
|
ANT!
I
FM
TELESCOPIC
ANTENNA
C72
cT1-1 | cV1-1 0.022
C /\ ge ariel ace er cae
. ra AN A AN A A A A A
|
igh Lio$ Litt L12! L134 Lia} Lis} L16
1.22 1.82 2.72 3.32 4.72 6.82 12g 183 27
4H aH C14] gH 2 C1S| aH 7 C16) aH 7? C17] oH 7? C18] aH P C19] aH C20! oH
D 2p 5p 3p 8p Sp So 8p
| ‘ 13
0.022 tak
NA —S, 0)
Cs CC /
D1
D3
motes 188279
(32
L26 R37 ate
1ghH 330
00
|
I
I
|
,
|
|
|
.
|
Q4
25C241 2K
BAND
Sih
fy
ANY
K R2 0 A)
l 560K (-
18
27p
up C6 I ¢7 f C8 cg
St1p T5p B2p 82p
16 17 18
——~-7-------- camer.
/ / /
/ / / RB
FN-RF 4 FM OSC 7% 3.3K
4
L6
cCT1-4 C11
271p
{1.2]
Nem
ooo"
ct
(Te) cxai238m
AM/EM FRONTEND/IF AMP
neat ade ei Ne ce aa tn tat ya et ee
L17 L18 Li9 L20 i if L22 A 123 L24 L2s
21 C22 C23 C24 €25 C26 ¢27 C28 ¢29 R4
68p
56p
33p
390
24p
20p
240
20p
10p
10K
51
BAND
[Fu] = [oer] ~ [cw] ~ [sua] ~ [swe] ~[sw7] ~ [swe] ~[sws] ~ [Swe] ~[sws] ~[sw2] ~ [sw]
Rv2
Fok (VOLUME
R25
2.2K
12
CXA1522M-T4
AMP
SP901
I |sPeatts
40
- v1 |
100 i ecm
ee ee | Q
Te BIG
ream [ee
;
KI
Qs lk J
28C241 2K rs DRY BATTERY
BAND Ba {| = SIZE "AA"
SELECT (ICE DESIGNATION R6)
SWITCH ’ 2PCS.3V
e@1C Block Diagram
IC1 CXA1238M-T6
(8) PLL LPF2 (8) MPX REG
AFC
FM OSC
REG
FM RF AM RF IN
FM RF IN FE GND
a
=z
oOo
8
9 Bie
4 2 2
is Gi ? 2a
FM =a
ceed 2
AM FRONT-END a
FM_JF/
E DISCR
M
a
Mf
ee bx < <
f
e
/
| COUNTER i AUTOBLEND TUNING
INDICATOR
BAND PASS
MUTE
- FN ENK (a - Oo a = N a (=)
uw wh wuagaos > > o ww oO o 2 2
0 a0 aa 2w ° o > e uw . oO =
a jt-—x _ <= <
im nd o x= x = w
4 Oo ° od oO o w o oO 2
a | a no a 3 o} o eo)
a > = Qo , w < < i
a. a > =
oa
a
a
Note:
e All capacitors are in uF unless otherwise noted. pF: wuF
50WV or less are not indicated except for electrolytics
and tantalums.
e All resistors are in Q and '/,W or less unless otherwise
specified.
e 4A: internal component.
r : B+ Line
no mark: FM
( ): MW
< >:Ssw
f }: LW
e Voltages are taken with a VOM (Input impedance 10M 2).
Voltage variations may be noted due to normal produc-
tion tolerances.
@ Signal path.
> :FM
FM IF IN GG)
AM IF IN G)
BAND SELECT (G)
ICF-SW10