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5-5. SCHEMATIC
DIAGRAM
— System
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Note on Schematic Diagram:
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All capacitors are in uF unless otherwise
noted.
pF: BuF
50
WV
or
less are
not indicated
except
for electrolytics
and tantalums.
All resistors
are
in Q
and
%
W
or less
unless
otherwise
specified.
A
: internal component.
wt
: fusible resistor.
Note:
The components
identified
by mark A\ or dotted line
with mark A\ are critical for
safety.
Replace
only
with
part
number specified.
Note:
Les
composants
identifiés
par
une
marque
/\ sont
critiques
pour la sécurité.
Ne ies remplacer que par une
piece portant le numéro
spéci-
fié,
Voltages and waveforms
are dc with respect to ground
under
: B+ Line.
.B— | : B—
Line.
Cc)
; adjustment for repair.
no-signal conditions.
no mark : STOP
(
): PLAY
<
>: REC
|
> NORMAL
TAPE
1}
=: CrO, TAPE
IV 9; METAL TAPE
Voltages are taken with a VOM
(impedance 10 MQ).
Voltage variations
may
be noted due to normal
production
tolerances.
Wavefroms are taken with a oscilloscope.
Voltage
variations
may
be noted
due
to normal
production
tolerances.
Signal path.
>
: PB
>») : REC
K570 : TC-K570
K670 : TC-K670
KB77ES : TC-K677ES
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