Sony WALKMAN WM-F31 User Manual

“1
WM-F31 /F41/F41SS
WM-F31 /F41 /F41SS__
3-2. SCHEMATIC DIAGRAM .
1 2 3
(MAIN BOARD)
C3 TA7370P
FM MPX
ICl 7358AP
FM FRONT END
IC2 TASIIOP
iF DET
I DI 1SS123
PROTECT
Ql 2sceris
$301
|
NORMAL Cr02/METAL
aa OCAL) | S502
$301-1 S301 2 | $302-2
tin)
$301-2 $301-1
102
riz MONO-*ST = NORMAL weray
100
HP3OI
NORMAL CrO2/METAL |
aa
as _o C102/
DX LOCAL NORMAL-~ METAL
R-CH —» hi
aan
A
iL
OT
||
Leer
ete
ees
:
eee
.
CNP3OI(I/2)
5
TIMEIE
—
_
5
ee
9
|
|
YY?
9?
FEN
ss0u/2)
——_———————
-
cei
|
[AUDIO
=
0.00)
20
'
(C601 ANGESOLF jk
MOTOR DRIVE
A 5303
.. MOTOR
AY
AAN y
M301
ie DC MOTOR
POWER SW
SF
we
64
.
Q303_
FMWI
fe
POWER SW DC IN
3V
IC301_LA4570
STREO PRE/POWER AMP
oviee
DRY BATTERY
“AA”
2pcs. 3
- : =
PANKNS
WS AU
? (LEC re R6)
Note:
@ All capacitors are in wF unless otherwise noted. pF: uur
50 WV or less are not indicated except for electrolytics
A and tantalums.
e@ All resistors are in 2 and 3/;,W or less unless otherwise
specified.
e A _: internal component.
@ Switch
B TAPE, ATT (WM-F41) NORMAL (DX)
7 NORMAL
TAPE, ST/MONO (WM-F31) (STEREO)
FUNCTION TAPE
MOTOR OFF
e [___] : adjustment for repair.
Cc @ Signal path
: TAPE (L-CH)
TAPE (R-CH)
: FM RF
: AM RF
>: FM MPX
: FM (L-CH)
: FM (R-CH)
: B+ bus.
Voltages are dc with respect to ground unless otherwise
noted.
e@
Readings
are
taken
under
no-signal
(detuned)
conditions
with
a VOM
(50
kQ/V).
Wy
=
ep
=>.
: TAPE
( ): AM
E < >:FM
( —)) : TAPE (when botton is pressed)
F
G
H
i

Sony WALKMAN WM-F31 Specifications

General

Brand	Sony
Model	WALKMAN WM-F31
Category	Cassette Player
Language	English