.-''-_s_.{r-Ť--
.,t
.
.::
I
I
|
.
.l
f
SCHEMATIC
DIAGRAM (parts
rtston
pases
16-18)
fl'his
schematic
diagram may be r"iin.a
"i"ny
iime witn ne
development of new tecinology.)
Notes:
oS701
: Power source switch in
"oÍl''
position.
oS901-910:
Presettunings,witches.
íssot:
CHl,
5902: CH2' 5903: CH3,
5904: cH4)
I
ssos, cHS, s9o6: cHs, st[7: cH7,
sgoo: cHB,
I
l-ssos,
cH9, S91o: cHo
)
oS911-S913:
Band
selector
switches.
(5911:
FM,
5912:
MW,
5913: LW)
oS914:
Memory
setswitch.
oS915:
FM
mods
selector switch.
S916,
S917: Tuning
sritches.
(S916:
down,5917:
UP)
olndicated
voltage values
are
the
standard
values
for
the
unit
measured by
the
oC electronic círcuit tester
(high-impedance)
with
the
chassís
taken
as standard.
Therefore, there
may
exist
some
erorc
in the voltage volues,
depending on the intemal
impedance
oÍthe
DC cirilittester.
(
):
AM voltage,[--i: MUTINGvoltage
.
-
Positive
vollage
lins5
.-
Negative voltage
line
ctrtrtrD'
FM
OSC
rrrr)
AMOSC r+
AM
signal
.:\Ťr*a_$&!i!'}.
AF signal
lines
o
l
mportant
saÍety
notice
Components identified by
A
marX have
specialcharacteristics
important Íor
safety.
When replacing
any
oÍ
these
components,
use only
manufacture/s
specified
parS.
.Cautlonl
lC and
LSI are
sensitive to
static electricity.
Secondary
trouble
can
be
preventd
by taking
care during repair.
.Cover
the
parts
boxes made
oÍ olastics with
aluminum coil.
.Ground
tha soldering iron.
.
Put
a
conductive
mat
on
the work
table-
.Do
not
touch the legs
oÍ lC
or
LSl
with
the fingers
directly.
r
TERMINAL
GUIDE OF IC'S,
TRANSISTORS
AND
DIODES
oUse
oÍ ceramlc
Íllterc
in
pairs
The
ceramic
filters
(CF201'
cF202) for
FM-lF
circuit are available ín
three
ranks. For
this orcuit.
be sure to use the
ceramics
of the
same
rank in a
pair.
At repairing and
replacement,
pay
closa attention to
the
resistors
(B907,
R908)
Íor
use as difÍerent resistors must
be used
depending
on
each
rank
oÍ the ceramic
Íilters.
Color
making
(Red,
Blue
or Orange)
RANK
(coloÍ'
8908 R907
cENŤER
FBEOUEI{CY
Orange
o
x
10.72 MHz
Rcd
x
x
10.70MH2
Blue
x
o
10.67 MHz
Nolr:
O
mert:
Resisloris
used.
x
mart:
Resistor
is
rxrt
used.
2SA933SQFISTA
2SC1740SOSTA
DTAI 14YSTP
DTCI 14YSTP
DTAI44ESTP
DTC124ESTP
DTC144ESTP
2SC2787LTA
2SO14s0RSTTA
25C3940AQSTA
a
v
ecá
1SS254TA
rss291TA
1
SR35200TB
MA4O51MTA
MA4O62MTA
LO
,/
Cothode
-4Ž
A
.<{
Anode
LN031441P
tq
víT/
oti(,."
-11-
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