Sony WM-FX483 - BLOCK DIAGRAM

WM-FX483/FX485/FX487
— 14 —— 13 —
5-1. BLOCK DIAGRAM
BATT IN
38
BATT DET
42
FUNCTION
KEY
S701
BAND
59
POWER
CONT
Q708
FL1
B.P.F
FM/AM RF,IF
IC1
LOCAL/DX MODEL
DC/DC
CONV.
Q401,T401
SWITCH
Q1,2
DC MOTOR
M901
BATT +B
T1
AM IFT
CF2
10.7MHz
CF1
450kHz
TUNER
VCC
450kHz
D401
D1
D3
CT1
D2
CT2
L1
FM RF
L2
FM OSC
L4
BAR ANT
L3
AM OSC
FM RF IN
2
MIX OUT
4
FM IF IN
7
AM IF IN
6
FM RF
24
FM OSC
21
AM OSC
20
AM RF
22
LPF1
14
LPF2
13
IF REQ
17
L.P.F
Q704,705
VCO
BUFFER
Q4
VCO
BUFFER
Q703
OSC OUT
19
L OUT
12
R OUT
11
QUAD
10
R CH
X1
107MHz
R CH
R CH
FWD
REV
L
L
R
R
REF
FWD
28
NF
31
26
25
FWD/REV
11
SYS CONT
REC MUTE
10
PRE MUTE
9
MUTE
Q305
MUTE
Q306
Q101
5
54
13
ON/OFF
DOLBY NR
IC331
FX485/487 MODEL
AUDIO
POWER AMP
IC301
REV
20
19
MIX
HP
LB GAIN
15
MB ON/OFF
14
SW
Q301
34 1
VOLUME
RV301
PWR
AVLS
Q310
4
COM
6
3
VCC
7
REF DC
Q311
12
DET
B+
FX483
MODEL
R CH
GND
REMO
DATA
VCC
COM
L CH
Q305
Q304
TUNER
VCC
S702-715
FWD
FF
REW
RVS
OFF
ON
HOLD
REG
IC702
MD
CONT
S601
SW
Q706
FM MODE
31
VCO(FM)
70
EO
65
IF REQ
61
IF IN
64
TAPE SELECT
32
VCO(AM)
71
FWD/REV
28
MUTE
62
DOLBY
27
GROOVE
48
AD IN2
43
MEGA BASS
47
AVLS
30
BEEP
49
AD IN3
44
HOLD SENS
40
HOLD
41
FWD
58
FF
57
REW
56
REV
55
RIPPLE
FILTER
Q52,53
RADIO +B
SWITCH
Q51
BATT +B
VCC
5
RADIO ON
60
TUNER
VCC
AMP CTL
46
SYSTEM CONTROL
IC701
POWER
SWITCH
Q707
OPEN DET
39
OPEN
DET
S301
3 1
POWER
AMP SW
Q307
AMP
CONT
Q308
AD REF
45
L701
D701
VDD
72
RESET
73
BATT +B
+B
MOTOR BRK
52
AMP
Q701
PHOTO
RIFLECTOR
Q702
PH701
PHOTO CTL
53
PHOTO IN
54
BRAKE
SWITCH
Q602-604
MOTOR
STSRT SW
Q608
MOTOR
SPEED SW
Q605
MOTOR
DIRECTION
Q609
TAPE
SPEED
TAPE
RV601
Q607
Q606
Q610
MOTOR CTL
51
MOTOR SPEED
25
MOTOR DIR
50
START
13
IN
15
V REF
14
DIR
3
MOTOR SERVO
IC601
U
4
V
5
W
6
Q601
5
22
X IN
75
X OUT
74
X701
75kHz
14
COM1 COM4
S1
S18
16
ND701
LCD
PHONES
J301
: FM
• Signal Path
• RCH is omitted
: PB
: AM
J302
DC IN
DRY BATT
SIZE "AA"
(IEC DESIGNATION R6)
2PCS 3V