Sony WALKMAN WM-F31 User Manual

WM-F31
/F41/F41S5
3. Phase Check
Mode : playback
Function: tape
Screw pattern
ee
QO@OO@OOD
test
tape
.
P-4-A063
oscilloscope
Wild
cabtonic
=
eo
.
2
O",
135°
180",
(6.3
kHz,
—10
dB)
L-CH
good
wrong
V
E
HEADPHONES
Setting
Function:
FM
.
ATT.
-
LOCAL
(WM-F41
only)
Main
board
(conductor
side)
FM RF signal generator
22.5
kHz
frequency
deviation
by
400
Hz
signal
VTVM
(0.5 ~ 5 V AC range)
HEADPHONES
F
oo
2
VCO Adjustment
Main board (component side)
Procedure:
FMRE signal
generator
audio board
O
set
.
(\)
i
NS
OD
1
( FM antenna
terminal
Carrier frequency: 98 MHz
Modulation: 1 kHz deviation
(30
%)
nae
|
frequency
counter
Tune
the
set
to
98
MHz.
|
Adjust
RV1
for
38
kHz
+200
Hz
on
the
counter.
er ee

Sony WALKMAN WM-F31 Specifications

General

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