Kenwood CT-201 Service manual

STEREO DOUBLE CASSETTE DECK
CT-201/KXF-W1010
SERVICE MANUAL
© 1998-04/B51-5423-00 (K/K) 3162
Lid glass (B03-3833-08)
KENWOOD badge (B43-0302-04)
Knob (REW) (K27-2218-08)
Knob (PLAY) (K27-2217-08)
Knob (F.F) (K27-2219-08)
Metallic cabinet (A01-3451-08)
Cassette lid (L) * (A53-)
Knob (PAUSE) (K27-2221-08)
Knob (STOP/EJECT) (K27-2220-08)
Front window (B03-3834-08)
Knob (POWER) * (K27-)
Display cover (B03-3807-08)
Knob (FUNCTION) * (K27-)
AC outlet * (E03-0351-08)
Knob (REC) (K27-2222-08)
Knob (REC LEVEL) * (K27-)
Knob (PLAY) (K27-2223-08)
Knob (REW) (K27-2218-08)
Knob (F.F) (K27-2219-08)
AC power cord bushing (J42-0083-05)
Lid glass (B03-3833-08)
Cassette lid (R) * (A53-)
Knob (STOP/EJECT) (K27-2220-08)
Knob (PAUSE) (K27-2221-08)
Phono jack (REC, PLAY) (E11-0264-08)
AC power cord * (E30-)
* Refer to parts list on page 12.
CT-201/KXF-W1010

CONTENTS/ACCESSORIES/CAUTION

Contents

CONTENTS/ACCESSORIES/CAUTION....................2
ADJUSTMENT............................................................3
PC BOARD .................................................................5
SCHEMATIC DIAGRAM.............................................7
* Please refer to KX-W594/W1060 Service Manual (B51-4924-00) if you want to know disassembly and
mechanism operation.

Accessories

EXPLODED VIEW ......................................................9
PARTS LIST..............................................................12
PARTS DESCRIPTIONS..........................................15
SPECIFICATIONS.. ....................................Back cover
Audio cord ..............................2
(E30-0615-05)
AC plug adaptor.......................1
(E03-0115-05)
(Except for Europe and Australia) For the unit with a European AC plug in areas other than Europe

Caution

Beware of condensation
When water vapor comes into contact with the surface of cold material, water drops are produced. If condensation occurs, correct operation may not be possible, or the unit may not function correct­ly. This is not a malfunction, however, and the unit should be dried. (To do this , turn the POWER switch ON and leave the unit for sev­eral hours.)
Be especially careful in the following conditions:
* When the unit is brought from a cold place to a warm place,
and there is a large temperature difference. * When a heater starts operating. * When the unit is brought from an air-conditioned place to a
place of high temperature with high humidity * When there is a large difference between the internal tempera-
ture of the unit and the ambient temperature, or in conditions
where condensation occurs easily
2
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
CASSETTE DECK
SETTINGS
ALIGNMENT
POINT
ALIGN FOR
FLG.
CASSETTE DECK SECTION
TAPE: NORMAL, DOLBY: OFF, INPUT: LINE IN
0 dBs = 0.775 V
I. REC/PLAY HEAD
[ 1 ]
DEMAGNET-
IZATION
POWER OFF
Remove the cassette door.
REC/PLAY
head
Demagnetize the REC/PLAY
head with a head
demagnetizer.
[ 2 ]
CLEANING
––PLAY
REC/PLAY
head, erase
head, capstan
pinch roller
Clean the REC/PLAY head,
erase head, capstan and pinch
roller using a cotton swab
slightly damped with alcohol.
[ 3 ]
AZIMUTH
(A)
MTT·114, TCC-153
0 kHz, -10 dB
(B)
PLAY
Azimuth

adjustment

screw
Maximum output.
(a)
II. DC BOARD
[ 1 ]
TAPE SPEED
(A)
MTT-111, TCC-110
3 kHz
(B)
PLAY
Timming
potentiometer in
the DC motor.
Adjust the tape speed so that a
3 kHz signal is produced at the
center of the tape.
(b)
III. PC BOARD
< 1 >
PLAYBACK
LEVEL
MTT-150
400 Hz (200 nWb)
(B)
PLAY
DECK A
SFR101 (L)
SFR102 (R)
Output level : -1 dBs
MTT-256
315 Hz (160 nWb)
Output level : -4 dBs
DECK B
SFR103 (L)
SFR104 (R)
MTT-256U, TCC-160
315 Hz ( 250 nWb)
Output level : 0 dBs
< 2 >
LED LEVEL
MTT-256U, TCC-160
315 Hz ( 250 nWb)
(B)
PLAY
SFR109 (L)
Adjust the variable resistros so that LED level of 0 dBs is
worked.
< 3 >
BIAS
CURRENT
(A)
1 kHz, -20 dBs
10 kHz, -20 dBs
(B)
Adjust REC level VR so that
the REC monitor output
becomes -20 dBs at 1 kHz,
then record and reproduce
signal of 1 kHz and 10 kHz in
alternation.
SFR107 (L)
SFR108 (R)
Record 1 kHz and 10 kHz in
alternation and adjust the
variable resistors which
control the bias current so that
the same playback level is
obtained.
< 4 >
RECORD
LEVEL
(A)
1 kHz, -20 dBs
(B)
Record and reproduce a
1 kHz, signal under the conditions set in < 3 >.
SFR105 (L)
SFR106 (R)
Adjust the variable resistors
so that LED level of 20 dBs is
worked.
CT-201/KXF-W1010
ADJUSTMENT
3
(A)
(B)
AC voltmeter AG
Oscilloscope
AC voltmeter
Frequency counter
L R
REC PLAY
CT-201/KXF-W1010
ADJUSTMENT
4
ACEGIBDFHJ

PC BOARD(Component side view)

1
2
3
4
5
6
7
Refer to the schematic diagram for the value of resistors and capacitors.
5 6
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