RXD-M55-H/M55-N/M55-S/M55E-H/M55E-N/M55E-S
16
ADJUSTMENT
No.
1
ITEM
INPUT
SETTING
OUTPUT
SETTING
PLAYER
SETTING
ALIGNMENT
POINT
ALIGN FOR
FIG.
LASER
CURRENT
Test disc
Type 4
Connect the DC
voltmeter to
CN23(#1 and #2) in
X29
Press the "PLAY" key
to check that the dis-
play is "03" or "05"
–
220mV to 550mV
Note:
Type 4disc :SONY YEDS-18 Test Disc or equivalent. (KTD-02)
LPF : Around 47k
Ω
+ 390pF or so.
CD player adjustment
Insert the AC cord to AC wall outlet while holding down the [CD PLAY/PAUSE] key.
No
< 1 >
< 2 >
< 3 >
< 1 >
ITEM
Demagneti-
zation and
cleaning
Azimuth of
the
REC/PLAY
head
TAPE SPEED
(NORMAL)
BIAS
CURRENT
INPUT
SETTING
–
SCC-1727
TCC
−
153
MTT
−
114
10kHz,
−
10dB
TCC
−
110
MTT
−
111
SCC
−
1727
3kHz
(B)
Connect the
AG to jack.
1kHz:
-30dBs
10kHz:
-30dBs
OUTPUT
SETTING
–
(A)
(A)
(A)
DECK
SETTING
Demagneti-
zation:
POWER OFF
Cleaning:
PLAY
PLAY
PLAY
REC and
PLAY
ALIGNMENT
POINT
Recording
head, erase
head,capstan
pinch roller
RVS FWD
Trimming pot
in the motor.
VR 1 (L)
VR 2 (R)
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.
Fig.1
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.
FIG.
ø
. CASSETTE MECHANISM UNIT
¿
. PC BOARD ADJUSTMENT
Cassette Deck adjustment
DIGITAL
OUT
OPTICAL
AUX
INPUT
L
R
FRONT
SPEAKERS
(6-16
Ω
)
L
-
+
R
(TAPE Lch),3 pin
X28 CN1
(TAPE Rch),5 pin
{
(A)
(B)
Fig.1
AC voltmeter
AG
Oscilloscope
AC voltmeter
Frequency counter
SYSTEM CONNECTIONS
0dBs=0.775V
