Diagrams; Block Diagram - Sony WALKMAN WM-EX910 Service Manual

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

BLOCK DIAGRAM

AUDIO MASTER AMP
HP901 IC301-1
(PLAYBACK)
FWD
PRE
IN-L
L-CH 1 OUT-L
PREAMP
7
5
FWD
REV
IN-L
R-CH R-CH
R-CH
L-CH
REV
R-CH R-CH
MTL
DRV-R
METAL
9
CONTROL
44 46
S704-2
(ATS)
S704-1
(TAPE DETECT)
9 5
T E
L 1 3 9 4 2 2 9 6 5 1 3
PM701
(PLUNGER)
PLUNGER
DRIVE 17 PM CTL
Q701
M601
CAPSTAIN/REEL
MOTOR
U
V
W
CAPSTAIN/REEL
MOTOR CONTROL
Q603-1
TU
CAPSTAIN/REEL
TV
MOTOR CONTROL
TW
Q603-2
w w w
COM
.
CAPSTAIN/REEL
MOTOR SWITCH
Q601
05
SECTION 6

DIAGRAMS

PRE OUT
CONTROL
Q315
R-CH
R-CH
METAL EQ VOLUME MAX VOLUME MIN
DOLBY NR AMP
AMP CONTROL SWITCH
IC303
Q305 Q311
4 IN-L OUL-L 5
METAL
VCC
SWITCH
14
Q306
MAX MID MIN
S301
DDC B+
VOL, AVLS
DDC B+
B+
SWITCH
Q316
S701
(DIRECTION)
FWD STOP REV
2 3 4 20
40
CAPSTAN/REEL
MOTOR SERVO
IC601
10
MC
ENTER P-SIG
∆/∆t
19 COMPARATOR PULSE
ENCODER
UOUT
34
BUFFER
VOUT
32
WOUT
31
VI BUFFER COMPARATOR
POWER
US
35
VS
36
WS
1
SOFT
CLIP
UT
28
VT
29
WT
30
x a o
y
2
i
BATT B+
– 13 –
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8
AUDIO MASTER AMP
IC301-2
PW
POWER AMP
IN-L
28
PW
NF-L
R-CH
29
EQ-L
30
MUTING
SWITCH
Q317
Q315
R-CH POWER AMP
PW IN-C
32
BASS BOOST
BST AMP
OUT
33
AMS
IN
12 AMS
AMS OUT
40 43
R-CH
REVIVE/ MEGA BASS/
GROOVE GROOVE
SWITCHING SWITCHING
Q304 Q302
1 Q Q 7 8 39 10
3 7 6 3
SYSTEM CONTROLLER
IC705
41 18 47 46 45
PW
13
VC
14
CAPSTAN/REEL
IV
MOTOR
15
START SWITCH
Q602
VI1
16
VI2
17
ICI1
21
RV601
TAPE SPEED
UIN U
4
VIN V
DECODER 5
WIN W
6
DR
9
CTRL1 CTRL1
CONTROL 7
CTRL2 CTRL2
u 1 6 3 BLOCK
8
.
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2 4
9 9 8
RIPPLE FILTER
BATT B+
Q309
J301
17 18 19
PW
OUT-L R-CH
+
20
R-CH
BEEP
BATT B+
PW
OUT-C
21
V/I
R-CH
AGC
IN
AGC DET 35
REW/FF
PUSH Y/x
JOG LEVER
41 42 39 & SWITCH
S703
M/N
CONTROL
X701
Q301
32.768kHz
12 36 6 16 28
1 5 1 5 0 8 9 2 4
42 44 43 19 37 38 11 15
PHOTO REFLECTOR
SWITCH & BUFFER
Q703
DDC DDC
B+ B+
ROTATION ROTATION
DETECT SENSOR DETECT SENSOR
(S REEL) (T REEL)
PH701 PH702
m
DDC B+
c o
– 14 –
WM-EX910
2
9 9
i
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: PLAY
VCC
DATA
REMO
GND
29
9 8 2 9 9
35
BATT B+
RESET SIGNAL
GENERATOR
IC704
STOP VOLTAGE
SWITCH DETECT
Q702 IC702
VOLTAGE DETECT
IC703
1 OUT1
2 OUT2
3 OUT3
4 OUT4 VCC 8
7
DC/DC
CONVERTER
RECHARGEABLE
IC701
BATTERY
NC-6WM
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
1PC. 1.5V
BATTERY
CASE