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"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
(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.
Wy
=
ep
=>.
: TAPE
(
): AM
E
<
>:FM
(
—)) : TAPE (when botton is pressed)
F
G
H
i
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