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3 7 63 1515 0
CD player adjustment
No.
ITEM
SETTING
Insert the AC cord to AC wall outlet while holding down the [CD PLAY/PAUSE] key.
Test disc
LASER
1
Type 4
CURRENT
Note:
Type 4disc :SONY YEDS-18 Test Disc or equivalent. (KTD-02)
LPF : Around 47kΩ + 390pF or so.
Cassette Deck adjustment
No
ITEM
ø. CASSETTE MECHANISM UNIT
Demagneti-
< 1 >
zation and
cleaning
Azimuth of
the
< 2 >
REC/PLAY
head
TE
L 13942296513
TAPE SPEED
< 3 >
(NORMAL)
¿. PC BOARD ADJUSTMENT
BIAS
< 1 >
CURRENT
SYSTEM CONNECTIONS
Fig.1
R
DIGITAL
OUT
OPTICAL
www
AC voltmeter
.
ADJUSTMENT
INPUT
OUTPUT
SETTING
Connect the DC
voltmeter to
CN23(#1 and #2) in
X29
INPUT
OUTPUT
SETTING
SETTING
–
POWER OFF
–
SCC-1727
TCC−153
MTT−114
(A)
10kHz,
− 10dB
TCC−110
MTT−111
(A)
SCC−1727
3kHz
(B)
Connect the
AG to jack.
1kHz:
(A)
-30dBs
10kHz:
-30dBs
-
+
L
R
FRONT
SPEAKERS
(6-16 Ω)
L
AUX
INPUT
AG
x
ao
y
i
(B)
RXD-M66/LS-M66
8
PLAYER
SETTING
Press the "PLAY" key
to check that the dis-
play is "03" or "05"
DECK
ALIGNMENT
SETTING
POINT
Demagneti-
Recording
zation:
head, erase
head,capstan
Cleaning:
pinch roller
PLAY
PLAY
RVS
FWD
Q Q
3
6 7
1 3
Trimming pot
PLAY
in the motor.
VR 1 (L)
REC and
VR 2 (R)
PLAY
(X28)
X28 CN1
Oscilloscope
u163
.
2 9
9 4
2 8
ALIGNMENT
ALIGN FOR
POINT
–
220mV to 550mV
0dBs=0.775V
ALIGN FOR
Demagnetize the REC / PLAY head
with the head eraser. Clean the REC
/ PLAY head, erase head,capstan and
pinch roller using a cotton swab
slightly damped with alcohol.
Adjust the output to maximum and
adjust the azimuth adjustment screw
for the Lissajours waveform pattern of
the oscilloscope to become close to a
45° straight line.
1 5
0 5
8
2 9
9 4
Check the tape speed so that
3kHz(±2%) is obtained at the center
of the tape.
Record 1kHz and 10kHz alternately,
and adjust the bias current adjust-
ment potentiometer for the playback
levels (-21dBs)to become the same.
(TAPE Lch),3 pin
(TAPE Rch),5 pin
m
AC voltmeter
co
Frequency counter
(A)
9 9
FIG.
FIG.
2 8
9 9
Fig.1
5
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