Diagrams; Block Diagram - Sony Walkman WM-FX141 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
4-1.

BLOCK DIAGRAM

S303(2/2)
DX → LOCAL
E,MX,EE,AEP MODEL
LPF
CP1
1
FM RF IN
CV1
AM CT1
TRACKING
24
AM RF IN
L1
FM MIX
CV2
FM
CT2
TRACKING
L2 23 FM RF OUT
CV3
AM MIX
FM
FREQ.
CT3
COVER
21
L3 FM OSC
CV4
AM CT4
FREQ.
COVER
L4
T E
L 1 3 9 4 2 2 9 6 5 1 3 20 AM OSC
VCC1
22
w w w
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SECTION 4
DIAGRAM
IC1
FM/AM,RF/AF AMP
19 18
DET OUT MPX IN
L OUT
CF2
3 8
FM IF IN
R OUT
T1
CF1
7
AM IF IN
4
VCO QUAD VCC2 LP2
15 12 6 16
AM IF
X1 X2
19kHz 10.7MHz
x a o u 1 6 3
y
i
— 9 —
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8
14
HP901
13
PLAYBACK
HEAD
JC2
28
L
E,MX,EE,AEP
MODEL
2
R
Q Q
3 7 6 3 1
16
+
RV601
M
TAPE SPEED
–
13
M901
REEL/CAPSTAN
MOTOR
S303(1/2)
(TAPE SEL)
CrO2/METAL ← NORM
.
2 4
9 9 8
IC301
AUDIO AMP
MOTOR DRIVE
25 24
RV301
VOLUME
5 6
5 1 5 0 8 9 2 4
23 22 17 20
Q301
SWITCH
S304
(FUNCTION)
FM → AM → TAPE
POWER
m
c o
— 10 —
WM-FX141
2
9 9
J302
18
PHONES
2
↓ S305
1
9
AVLS
↓
OFF
8
9 8 2 9 9
19
J301
S302
DC IN 3V
• Signal path
: FM
: AM
E : PB
• Abbreviation
EE : East European model
MX : Mexican model