(A) Azimuth Adjustment - Kenwood CT-401 Service Manual

INPUT
ITEM
SETTINGS
SETTE DECK SECTION
C/PLAY HEAD
DEMAGNET-
–
IZATION
CLEANING –
(A)
AZIMUTH MTT·114, TCC-153
0 kHz, -10 dB
C BOARD
(A)
TAPE SPEED MTT-111, TCC-110
3 kHz
C BOARD
MTT-150
PLAYBACK
400 Hz (200 nWb)
LEVEL
RECORD (A)
LEVEL 1 kHz, -20 dBs
(A)
BIAS
1 kHz, -20 dBs
CURRENT
10 kHz, -20 dBs
REC BIAS
OSC
–
FREQUENCY
EM CONNECTIONS
SYSTEM CONTROL
REC PLAY
L
R
LINE IN LINE OUT
AG
(B)
(A)
IMUTH ADJUSTMENT
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ADJUSTMENT
OUTPUT CASSETTE DECK
SETTINGS SETTINGS
TAPE: NORMAL, DOLBY: OFF, INPUT: LINE IN
POWER OFF
–
Remove the cassette door.
– PLAY
(B) PLAY
(B)
PLAY
(B)
PLAY
Record 1kHz and 10kHz in
(B)
alternation and playback.
Record and playback at
(B)
maximum REC volume
position.
– Recording
AC voltmeter
Oscilloscope
Frequency counter
KXF-W3030
ALIGNMENT
ALIGN FOR
POINT
0 dBs = 0.775 V
Demagnetize the REC/PLAY
REC/PLAY
head with a head
head
demagnetizer.
Clean the REC/PLAY head,
REC/PLAY
erase head, capstan and
head, erase
pinch roller using a cotton
head, capstan
swab slightly damped with
pinch roller
alcohol.
Azimuth
adjustment Maximum output.
screw
Adjust the tape speed so
that a 3 kHz signal is
SFR301
produced at the center of
the tape.
DECK B
Output level : ±1 dBs
SFR101 (L)
SFR102 (R)
SFR107 (L)
0 dBs ± 3 dBs
SFR108 (R)
Record 1 kHz and 10 kHz in
alternation and adjust the
SFR105 (L) variable resistors which
SFR106 (R) control the bias current so
that the playback level
is obtained 0 dBs ± 3 dBs.
105 kHz ± 3 kHz
L107

(a) AZIMUTH ADJUSTMENT

To Frequency counter
(c)
CN105
FLG.
(a)
(b)
(c)
KXF-W1030