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0424
K-SaW
KSA
BLOCK DIAGRAM
ADJUSTMENT
INPUT
OUTPUT
CASSETTE TAPE
ALIGNNENT
aa
eee
|
ITEM
SETTINGS
SETTINGS
DECK SETTINGS
POINTS
ALIGN FOR
CASSETTE DECK SECTION
TAPES NORMAL, DOLBY: OFF, INPUT? LINE
0dBs =0,775V
]_REC/PLAY HEAD
POWER: OFF
Demagnetize
the REC/PLAY
{ 1] | DEMAGNETIZATION
Remove the
REC/PLAY
head with a head
cassette door.
head
demagnetizer.
[2]
REC/PLAY
Clean the REC/PLAY head
head
erase heads capstan and
CLEANING
erase head;
pinch roller using a cotton
capstan:
swab slightly damped
pinch roller.
with alcohol,
O
k
! SYN
C.
MECHA
A
a
Q6I3 MECHA
A DRIVER
Q6l4
MECHA
B ORIVER
(vg)
Nap',
(©) OUPUT
ts oi
=
2
Azimuth
re 7 c
Pa
°
9
AZIMUTH
NTT-256
(B)
PLAY
adjustment
Maximum output,
3
i)
® S 8
©
4
10kHz,-20dB
+ i446
S
3
TPC BOARD
8
fe)
fe]
Connect a jumper
Adjust the tape speed so
MLS:
TAPE SPEED
between GND
A DECK: R654
that a 6kHz signal
is
(1)
(HI SPEED)
(B)
and TP-HISP
B DECK: R643
produced at the center
=
of the tape,
<q
;
Adjust the tape speed so
TAPE SPEED
eae
|
A DECK: R655
that a 3kHz signal
is
(2)
(NORMAL)
MTT-111
(B)
PLAY
B DECK: R644
produced at the center
9
of the tape,
&
A DECK: R423 (L)
2
PLAYBACK
R424 (R)
Output level? -3,8dBs
°
(3)
LEVEL
B DECK: R457 (L)
(500mv)
R458 (R)
Connect a
a
3
Frequency
=
x
3
(4)
counter
REC/PAUSE
a
ames
beteween
TAPES METAL
oe
2
w
GND and TP10.
oo
Adjust REC LEVEL
a9
so that the REC so-
Record 1kHz and 12,5kHz
in
:
nitor output
becomes
alternation
and adjust
the
cas
(A)
-27dBs at 1kHz,
R453 (L)
variable resistors which
us
- =
(5)
BIAS CURRENT
1kHz,-37, 5dBs
(B)
then record and
R454 (R)
control
the bias current
he
318
S
@
12. 5kHz,-37. 5dBs
reproduce signal
so that the same playback
Ne)
4
2
of 1kHz and 12, 5kHz
level is obtained,
DS
ra
oC)
in alternation,
ae g
-
Record and
Co)
-
-
&
reproduce a ikHz
Adjust
the variable
en
§ fe
¢
(6)
RECORD LEVEL
(A)
signal under the
R505 (L)
resistors so that a
Sz
S| tg
g
ikHz,-17,. 5dBs
conditions set
R506 (R)
playback level of -7dBs
fe] 2a
i
in (5),
is obtained,
fo)
2
Connect a DC
iw
o
voltmeter
<
Jo
between
A DECK: R804
3
4} |
(7)
QUICK SENSOR
TP4 and TP5,
B DECK: R806
°
fe)
B DECK:
:
TP4 and TP6,
«
|
g
SYSTEM CONNECTIONS
KX-94W
Azimuth adjustment screw
fe
Ss
38
'
.
qe
Ve
T1lOa
a
Sls
AC voltmeter
AG
Sie
AC voltmeter
is
Ki]
at
~
8
Voltmétre CA
GEnérateur
aud
:
Voltmétre CA
3
g{ ee
O18,
See Ae Syl parate
Grctonape
een
)
fe}
=
mm
Oszilloskop
4
Frequency eourtor
=
4
5
ety
4
L.
2 ©-*
z
St
Nh
. é
ss
i! <=
2
oan
REVERSE
2
x
x
:
se
\
ae
\
& \x
aes
cope
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