Block Diagram - Main Section - Sony WM-FX522 Service Manual

WM-FX522
6-2. BLOCK DIAGRAM – MAIN Section –
TUNER L-CH
B
(Page 15)
AUDIO MASTER AMP
(FWD/REV SELECT, PLAYBACK EQ AMP)
HP901
IC301 (1/3)
(PLAYBACK)
FWD
PRE
IN-L
L-CH 1 OUT-L
PREAMP
5
FWD
REV
IN-L
R-CH R-CH
MTL
DRV-L
R-CH METAL
CONTROL
L-CH
REV
44 46
R-CH R-CH
S901-2
S703
FWD
(DIRECTION)
STOP
REV
S901-1
(TAPE DETECT)
59 40 46
63 64
LIQUID CRYSTAL DISPLAY
LCD1
3 4 2
EEPROM
IC501
ROTATION DETECT
SENSOR
PH701
2.5V B+
PHOTO REFLECTOR
PHOTO IN 24 SWITCH & BUFFER
Q306
PHOTO CTL 34
PLUNGER
PM901
PM CTL 35 DRIVE
(PLUNGER)
Q701, 702
RV301
VOL
+
7
EQ
R-CH
8
AVLS CONTROL
SWITCH
Q304
+
R-CH
(ATS)
37
62 61 33 71 72
X701
75kHz
1
COMPARATOR
IN+
OUT
+
11
VSP
–
SPEED
CONTROL
M901
(CAPSTAN/REEL) U
19
MOTOR
V
1 DRIVE
W
CIRCUIT
3
U
W V
DIRECTION CONTROL
6
AUDIO MASTER AMP
(BASS BOOST AMP, AMS, POWER AMP)
IC301 (2/3)
PW
POWER AMP
IN-L
28
POWER AMP
R-CH
PW
IN-C
32
BASS BOOST POWER AMP
BST
AMP
OUT
PW
V/I
33
NF-L
29
AMS
EQ-L
AGC R-CH
30
IN
AMS
12 DET
40 43 35
44 38
SYSTEM CONTROLLER,
LIQUID CRYSTAL DISPLAY DRIVER
IC701 (2/2)
23 32 68 67 58 70
(TUNER CIRCUIT B+)
RV601
TAPE SPEED
TH601
10
9
7
VREF
SWITCH & BIAS
START
OSC
LOGIC REFERENCE 8
CIRCUIT
VOLTAGE
CIRCUIT
CAPSTAN/REEL
MOTOR DRIVER
PLL LOW-PASS FILTER
IC601
CIRCUIT B+
5
16 16
PW OUT L
+
20
PW OUT R
+
22
PW OUT C
21
BEEP
39 45 42 41
KEY MATRIX
S702, S704 – 710
36 56 51 39 22 60
S701
HOLD
HOLD SW 43
OFF
HOLD
TUNER B+ RIPPLE FILTER
B+ SWITCH
Q2 Q301
18
BASE
RFOUT
VCC
17 RIPPLE FILTER
AUDIO MASTER AMP
(RIPPLE FILTER)
IC301 (3/3)
RESET SIGNAL
GENERATOR
IC704
D802
BATTERY
DETECT
IC201
DC/DC
2 5
2.5V B+ CONVERTER
IC801
1
DC/DC
VT B+ B+ SWITCH
CONVERTER
Q401
T401, Q405
D402
ANT
A
(Page 15)
J301
• R-ch is omitted due to same as L-ch.
i
• SIGNAL PATH
: PLAYBACK
: TUNER (FM/AM)
VCC
DATA
REMOTE
GND
BATT B+
(1.5V)
19
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
1PC. 1.5V