Sony WM-FX477 User Manual

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WM-FX477/FX479
Pin No. Pin Name I/O Pin Description
76 VXT — Stabilized capacitor connection of crystal oscillation power supply.
77 VLCD — LCD driver power rising pressure pin
78, 79 C1, 2 — LCD driver power rising pressure pin
80 VEE — 1.5 V constant voltage power supply for LCD driver.
5-2. BLOCK DIAGRAM
D1
D401
L OUT
R OUT
VCC
QUAD
OSC OUT
FM/AM RF, IF, MPX
IC1
12
11
FWD
58
FF
57
5
10
CF2
10.7MHz
X1
TUNER
VCC
R CH
R CH
L
HP901
PB HEAD
SWITCH
Q2
L.P.F
Q701,702
TAPE
SPEED
RV601
SYSTEM CONTROL/
LCD DRIVE
IC701
AMP
Q751
TUNER
VCC
CF1
450kHz
L1
FM RF
T1
AM IFT
BATT+B
13
DC/DC
CONV.
Q401,T401
RIPPLE
FILTER
Q51,52
RADIO+B
SWITCH
Q53
VCO
BUFFER
Q703
FWD/REV
SWITCH
Q301
NF LEVEL
SWITCH
Q101
POWER
SWITCH
Q753
POWER
AMP SW
Q304
AMP
CONT
Q305
ON/OFF
MIX
IN(L)
H.PIN(L)
FX479
FX477
DOLBY NR
IC331
MIX OUT
FM RF IN
2
4
S/S
MOTOR SERVO
IC301(2/2)
3
IN+
35
M-V REF
34
DR
43
UOUT
VOUT
WOUT
FM IF IN
7
AUDIO
POWER AMP
IC301(1/2)
REV IN(L)
FWD IN(L)
NF
SYSTEM
6
15
AM IF IN
6
FM RF
24
FM OSC
21
AM OSC
20
AM RF
22
LPF1
14
LPF2
13
IF REQ
17
FM MODE
31
IF REQ
K0-0
K03
HOLD
43
OPEN DET
48
BATT IN
38
BATT DET
42
VDD
72
RESET
73
AD REF
45
AMP CTL PHOTO CTL PHOTO IN
33
MOTOR DIR MOTOR SPEED MOTOR CTL X OUT X IN
SYS CONT
HOLD
S701
S301
(OPEN DET)
S601
(MD CONT)
US,CND,C&SA
MODEL
US,CND,C&SA
MODEL
FUNCTION
KEY
S702-715
B+
OFF
ON
B.P.F
MUTE
Q306
FL1
DC IN
3V
J302
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS, 3V
D2
L3
FM OSC
L4
AM OSC
D3
CT1
DOLBY B+
SWITCH
Q331
REW
56
REV
D731
55
FWD
FF
REW
RVS
B+
BATT+B
PH751
+B
L2
AM
FERRITE-ROD
ANTENNA
R
FWD
R CH
L
R
REV
REF
+
–
9
10 5
POWER MUTE
21
+B
DOLBY
+B
19
4 5
REG
IC702
1
30
28
L.B-SW
32
MIX
OUT(L)
VOL
RV301
24
POWER
IN(L)
PWR
R-CH
COM
L CH
R CH
22
POWER
OUT(L)
16
POWER
OUT(COM)
18
J301
38 41
522
S1
S18
X701
75kHz
Q607
BATT+B
M901
CAPSTAN/
REEL
MOTOR
14
COM1
04
ND701
LIQUID CRYSTAL
DISPLAY PANEL
COM4
K0 K3
34 37
BEEP
49
AVLS
30
MEGA BASS
47
MUTE
62
DOLBY
28
RADIO ON
60
FWD/REV
29
TAPE SELECT
32
VCO AM
71
VCO FM
70
IF IN
6461
EO
65
BAND
59
3
46
PHOTO
REFLECTOR
Q752
MOTOR
DIRECTION
Q602
MOTOR
SPEED SW
Q603
BRAKE
SWITCH
Q604-606
277475
39
41
232524
MOTOR BRK
26
40
R-CH
AVLS
CONTROL
Q303
(1/2)
L701
• RCH: same as L-CH
• Signal path
: FM
: AM
: PB
T1
AM IF
L1
FM
TRACKING
L3
FM
TUNING
VOLTAGE
L4
AM
TUNING
VOLTAGE
CT1,L2
AM
TRACKING
• Abbreviation
CND : Canadian model
C&SA : Central and South America model

Sony WM-FX477 Specifications

General

Brand	Sony
Model	WM-FX477
Category	Cassette Player
Language	English