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CONTENTS/CONTROLS & INDICATORS
Contents
DISASSEMBLY FOR REPAIR ..........:0:0:ccccssseccseeeeseeteeeeees 4
CIRCUIT DESCRIPTION
DESCRIPTION OF COMPONENTS ...........0:::cccceeeeeeenees 6
CIRCUIT DESCRIPTION ............ccccsccecceesceeeeeeteeneeenees 8
BA3708F GAP DETECTION IC ..........ccccecssceceeeeeeeseeeees 8
uPD75108G-604-1B MICROPROCESSOR IC...........46+5 11
MECHANISM DESCRIPTION .......--cce0ecceeeeeeseeeeeereeeeeeees 18
ADJUSTMENT..........ccccceceeeceeceeeseeeceeseeseeeeeeeeenneseees 23
REGUAGES save
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Controls & indicators
ol:
T.P.C, (Theft Prevention Chassis)
indicator
When
inserting
the
unit
mto
the
detachable case, this indicator lights
as a warning that the unit is not set
correctly
This indicator goes off when the unit
ts set correctly
Power ON/OFF switch
(Volume)
Fast
Tuning switch
in Tape Play mode, Each switch per-
mits Fast Forward or Rewind opera-
tons.
in Tuner mode. when this switch is
pressed
with
the
Auto/Manuai
switch
set
to
Auto,
the
unit
automatically
seeks the frequency,
and stops when a marginal broad-
cast is received.
In Manual
mode.
press this switch once to change the
receiving frequency
by one
step
When
this switch is kept pressed,
the frequency changes continuously
PC BOARD (1/2)
PC BOARD (2/2)
CIRCUIT DIAGRAM
Digital display
Displays the trequency being received
Lit when SK brosdcast
is
Lt
when
the
Auto/
Indicates
the
Preset
Stetion
Swatch
No.
Preset Scan/Eject
Pressing
this switch
during
tuner
operation
will activate
the Preset
Scan mode.
This will provide a § se-
cond sampling of each preset from
the current listening memory bank
When
desired
station
is reached,
press Preset Scan switch again or
corresponding Preset station switch
to end Preset Scan mode. When this
Switch
«s
pressed
during
tape
playback, the cassette 1s ejected.
Manuel
switch = set to
Auto.
Preset Seek switch
if this
switch
is pressed
during
playback,
the
tape
diwection
1s
reversed.
If this switch is pressed
during
Fast
Forward
or
Rewind
mode, the Fast Forward or Rewind
mode is released and the unit enters
Play mode
In Tuner mode, when this switch is
tapped once, the preset stations will
each be received sequentially, When
it 1s kept pressed,
Auto
memory
operation will be activated
Preset station switches (1 - 0}
In Tuner
mode,
one
switch
can
memonze
of each FM1,
FM2
and
one of either MW or LW.
FM. MW. LW selector/indicators
Selects reception band. Indicates the
current receiving band
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