Adjustment - Kenwood RXD-M33 Service Manual

RXD-M33/M33MD
QQ
3 7 63 1515 0
Cassette Deck adjustment
No ITEM
SETTING
ø. CASSETTE MECHANISM UNIT
Demagnetiza
< 1 > tion and
cleaning
SCC-1727
Azimuth of
TCC−153
the
< 2 > MTT−114
REC/PLAY
head
TCC−110
MTT−111
TAPE SPEED
< 3 >
SCC−1727
(NORMAL)
¿. PC BOARD ADJUSTMENT
Connect the
AG to jack.
BIAS
400Hz: -
< 1 >
CURRENT
12.5kHz: -
TE
L 13942296513
SYSTEM CONNECTIONS
Fig.1
www
.

ADJUSTMENT

INPUT OUTPUT DECK
SETTING SETTING
Demagnetizat
ion: POWER
– OFF
–
Cleaning:
PLAY
(A) PLAY
10kHz,
− 10dB
(A)
PLAY
3kHz
(B)
REC and
(A)
PLAY
20dBs
20dBs
ANTENNA
+
AM
L
-
AUX
FRONT
INPUT SPEAKERS
GND
(6-16 W)
-
L
R
FM
+
75 Ω
R
AC voltmeter AG
x ao
y
(B)
i
8
ALIGNMENT
POINT
Demagnetize the REC / PLAY head
Recording
with the head eraser. Clean the REC
head, erase
/ PLAY head, erase head,capstan and
head,capstan
pinch roller using a cotton swab
pinch roller
Adjust the output to maximum and
adjust the azimuth adjustment screw
for the Lissajours waveform pattern of
the oscilloscope to become close to a
RVS FWD
Trimming pot
3kHz(±2%) is obtained at the center
in the motor.
VR 1 (L)
current adjustment potentiometer for
VR 2 (R)
the playback levels to become the
Q Q
3 6 7 1 3
X28 CN1
(TAPE Lch),22 pin
(TAPE Rch),20 pin
u163
Oscilloscope AC voltmeter
.
2 9 9 4 2 8
0dBs=0.775V
ALIGN FOR
slightly damped with alcohol.
45° straight line.
Check the tape speed so that
of the tape.
Record 400Hz and 12.5kHz
alternately, and adjust the bias
same.
1 5 0 5 8 2 9 9 4
m
co
Frequency counter
(A)
9 9
FIG.
Fig.1
Fig.1
Fig.1
2 8 9 9
13