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4-6.
SCHEMATIC
DIAGRAM
—MAIN
Section—
©See page 22 for Waveforms
and 43 for IC Block Dia
1c301 176)
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Notes on schematic
diagram:
+
All capacitors are in yF unless otherwise noted. pF: pyF 50WV
or less are not indicated except for electrolytics and tantalums.
°
All resistors are in ohms, 1/4W or less unless otherwise noted.
*
QQ:
Internal
component
*
%_:
Indicate a permissible
margin
- ne}: Nonflammable
resistor
ml
|
:
eas2|
Tae
(REC LEVEL)
"el
The components identified by mark A\ or
dotted line with mark 4\ are critical for
safety.
Replace only with part number specified.
fetaicn
Lescomposants identifiés par une marque
A sont critiques pour la sécurité.
Ne les remplacer que par une piéce por-
tant le numéro spécifié.
commen = B+
Line
*ameen:
B-
Line
*(-__]: Adjustment
for repair
+
Voltage
are
dc with
respect to ¢
conditions.
No mark:
Stop
{
)
: PLAY
((
))
: REC
<
>
: FF
<<
>>
: REW
{
J]
: MOMENTARILY
WHEN pp
{I
J]
: MUTING
*
Voltages are taken with
a VOM
Voltage
variations
may
be not
tolerances.
*
Circled
numbers
refer to wavef
*
Waveforms
are
taken
with
a os
m4
aid
CNI08
CNIOS
pubsshactactelasdon
EAP
AQDER
4
HEADPHONE
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VOL BOARD
Tc401
a
RC456000
Ie4or (172)
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0.001
oo,
2s 0
—_
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C280
RI22
1.6%
1C375
C115 100p
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—
C112 2200
R446 150K
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=
Posen, [tH
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Vist
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ti) SS
7 on Sa}
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BRS
BS 23a
23
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cg
Cn
&
se
rs
1
7
471
Voltage variations
may
be not
ay
a
zi
bet
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¥
HH
tolerances.
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——
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———.
——————__"'
SIONAL LEVEL 9€T
>>>: REC
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