TABLE
OF
CONTENTS
Features
©
FM
stereo/SW/MW/LW
portable
receiver
with
worldwide
band
coverage
Section
Title
Page
*
Quartz-controlled
PLL
(Phase
Locked
Loop)
synthesizer
system
using
a
microcomputer
for
rape?
easy
pinpoint
tuning
Specifications
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1
¢
Presetting
of
up
to
20
stations
for
quick
tuning
Servicing
Notes::+++t+ss+ssssseseseesseedeesssseesesesceesersesseeesesseens
2
*
Dual
timer
standby
function
to
receive
your
favorite
broadcast
at
thé
desired
time
:
*
Sleep
timer
to
turn
the
radio
off
automatically
1.
GENERAL
after
a
specified
number
of
minutes
"Location
of
Controls
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3
*
FM
stereo
reception
through
stereo
headphones
° :
(not
supplied)
Operating
the
Radio-s++++sss+ssssssseseeessssseeesceeevensenseeneenens
4
Setting
the
Standby
Ce
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Peer
Pere
rere
rere
5
Setting
the
Sleep
Timer
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6
Using
Other
Functions
«++++++++ssss+ssseseeseeeeteesenseneseneesesens
6
Setting
the
Clock
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6
2.
DISASSEMBLY
2-1.
Cabinet
(Rear)
Removal
ss++++++ssrseeeessssesesscseeeeessseees
7
2-2.
Key
Board
and
Main
Board
Removal
+++++++++++++r+ss+eeee
We
3.
ELECTRICAL
ADJUSTMENTS
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8
4.
EXPLANATION
OF
IC
TERMINALS
°---+-+-+----ee2eeeeeee
11
5.
DIAGRAMS
5-1.
Printed
Wiring
Boards
+++++++s++esseeeseeereeeseteetensneeens
13
5-2.
Schematic
Diagram
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17
6.
EXPLODED
VIEW
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Sesdseutdevasoosderesee
22
7,
ELECTRICAL
PARTS
LIST
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23
SERVICING
NOTE
Flexible
Circuit
Board
Repairing
e
Keep
the
temperature
of
the
soldering
iron
around
270°C
during
repairing.
e
Do
not
touch
the
soldering
iron
on
the
same
con-
ductor
of
the
circuit
board
(within
3
times).
e@
Be
careful
not
to
apply
force
on
the
conductor
when
soldering
or
unsoldering.
Notes
on
chip
component
replacement
®
Never
reuse
a
disconnected
chip
component.
@
Notice
that
the
minus
side
of
a
tantalum
capacitor
may
be
damaged
by
heat.
@
HOW
TO
CHANGE
THE
CERAMIC
FILTERS
This
model
is
used
two
ceramic
filters
of
CF2,
CF4.
You
must
use
same
type
of
color
marked
ceramic
filters
in
order
to
meet
same
specifications.
Therefore,
the
ceramic
filter
must
change
two
pieces
together
since
it’s
supply
two
pieces
in
one
package
as
a
spare
parts.
orange
Center
frequency
10.70MHz
10.67MHz
10.73MHz
10.64MHz
10.76MHz
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