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Sony WALKMAN WM-702 User Manual

Sony WALKMAN WM-702
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TOTAL
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Note:
.
All
capacitors
are
in
u
F
unless
otherwise
noted.
pF:
uu
F
SOWV
or
less
are
not
indicated
except
for
electroiytics
and
tantalums.
All
resistors
are
in
@
and
%W
or
less
unless
otherwise
specified.
-
ERR:
8+
Line
.
Cc]
:
adjustment
for
repair.
Total
current
is
measured
with
no
cassette
installed.
Power
voltage
is
dc
1.3V
and
fed
with
regulated
dc
power
supply
from
battery
terminal.
Voltage
and
waveforms
are
dc
with
respect
to
graund
in
playback
mode.
%
no
mark
:
FWD
Voltages
are
taken
with
a
VOM
(Input
impedance
10M
®).
Voltage
variations
may
be
noted
due
to
normal
produc-
tion
tolerances.
Signal
path.
=>
=:
RADIO
SD
:PB
4-4.1C
BLOCK
DIAGRAMS
IC101
TA?795FN
NFB-A
QUT-A
DRV-A
GND
DRV-B
QUT-B
NFB-B
W/N
FWD/REY,
LED.
METAL/NORMAL
CONTROLLER
yCC
FIN-A
RIN-A
YREF
FIN-B
RIN-B-
TC
F/R
B-IN
EK-IN
QUT-A
SC-IN
A A
IC702
CXA1405M
IN
HPIN
GND
Vref
Vcomp
Vcc
wa)
po
01
02
STARTER
IC601
TLP326
1C104
TA8145FN
TIMING
CONTROL
©)
(6)
@)
(8)
GNO
—14—
B
B
B
B-!N
EK-!N QUT-B
SC-IN
1C103
NJM2106
V
REF
SAW
“—\—"
“—y—_
BUFF
soBUFF
PULSE
IV-IN-
-OUT
-IN
VI-IN
{V-OUT
IC102
TA7793FN
HPF-B
LPF-B
SW
YCC
HPF-A
LPF-A
=
VREF
GND
A
OuT
(A)
LPF DET
MUTE
VREF
VCC
POWER
SWITCH
ed
HPF
BOOST
wGTF
wWGTOUT
GND
C
SOFT2
——~_—
ACK
ELECTROMOTIVE
pee
eg
Gan
STOP
SIGNAL
bey
OET
tHe
VIN
(25)
W
IN
P—18AC
ae
a
OUTPUT
Vv
||
sort
miei
WITCHING
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bs
H—+—1
BUFFE
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P
GND
WB
VB
UB

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Sony WALKMAN WM-702 Specifications

General IconGeneral
BrandSony
ModelWALKMAN WM-702
CategoryCassette Player
LanguageEnglish

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