KENWOOD CT-2050 Service Manual

Cover page of KENWOOD CT-2050 Service Manual

Service Manual for KENWOOD CT-2050, downloadable as a PDF file.

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REC
PLAY
LINEIN
LINEOUT
R
L
SYSTEM CONTROL
AC220-
240V~
AC110-
120V~
POWER
TAPE
B
1
8 PAUSE
REC/ARM
STEREO DUBLE CASSETTE DECK KX-W6080
AUTO REVERSE
REC LEVEL /BAL..
/ BIAS
MAX/R
MIN/L
MODE
REC OFF PLAY
TIMER
RESET B
AUTO BIAS
CCRS
MPX FILTER
NORM.-DUBB.-HIGH
TAPE
A
0
1
8 PAUSE
REC/ARM
AUTO REVERSE
1
1
RELAY REC
REV.MODE
DOLBY NR
RESET A
PHONES
-ON
­OFF
0
FORWARD
STOP
REVERSE
FORWARD
STOP
REVERSE
KENWOOD badge
(B43-0302-04)
Front glass
(B10-2486-04)
Knob
(K29-6935-04)
Knob
(K29-2936-04)
Panel*
(A60-)
Phono jack
(E63-0136-15)
Miniature phone jack
(E11-0188-05)
AC power cord*
(E30-)
Foot*
(J02-)
Power cord bushing
(J42-0083-05)
Cassette lid L*
(A53-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Knob (BUTTON)*
(K27-)
Phono jack
(E11-0292-05)
Slide switch
(S31-1036-05)
Front glass
(B10-2450-03)
Knob
(K29-5828-04)
Front glass
(B10-2486-04)
Cassette lid R*
(A53-)
PRECAUTIONS FOR REPAIR
Refer to KX-W4070/W6070 service manual(B51-5031-00), if you want to know more
information of CIRCUIT DESCRIPTION.
Illustration is KXF-W6010.
* Refer to parts list on page 18.
STEREO DOUBLE CASSETTE DECK
CT-203/KXF-W4010/KXF-W4010E
CT-2050/KXF-W6010/KXF-W6010E
SERVICE MANUAL
© 1998-2/B51-5413-00 (K/K) 3430
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 2
background image
REC
PLAY
LINEIN
LINEOUT
R
L
SYSTEM CONTROL
AC220-
240V~
AC110-
120V~
POWER
TAPE
B
1
8 PAUSE
REC/ARM
STEREO DUBLE CASSETTE DECK KX-W6080
AUTO REVERSE
REC LEVEL /BAL..
/ BIAS
MAX/R
MIN/L
MODE
REC OFF PLAY
TIMER
RESET B
AUTO BIAS
CCRS
MPX FILTER
NORM.-DUBB.-HIGH
TAPE
A
0
1
8 PAUSE
REC/ARM
AUTO REVERSE
1
1
RELAY REC
REV.MODE
DOLBY NR
RESET A
PHONES
-ON
­OFF
0
FORWARD
STOP
REVERSE
FORWARD
STOP
REVERSE
KENWOOD badge
(B43-0302-04)
Front glass
(B10-2486-04)
Knob
(K29-6935-04)
Knob
(K29-2936-04)
Panel*
(A60-)
Phono jack
(E63-0136-15)
Miniature phone jack
(E11-0188-05)
AC power cord*
(E30-)
Foot*
(J02-)
Power cord bushing
(J42-0083-05)
Cassette lid L*
(A53-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Knob (BUTTON)*
(K27-)
Phono jack
(E11-0292-05)
Slide switch
(S31-1036-05)
Front glass
(B10-2450-03)
Knob
(K29-5828-04)
Front glass
(B10-2486-04)
Cassette lid R*
(A53-)
PRECAUTIONS FOR REPAIR
Refer to KX-W4070/W6070 service manual(B51-5031-00), if you want to know more
information of CIRCUIT DESCRIPTION.
Illustration is KXF-W6010.
* Refer to parts list on page 18.
STEREO DOUBLE CASSETTE DECK
CT-203/KXF-W4010/KXF-W4010E
CT-2050/KXF-W6010/KXF-W6010E
SERVICE MANUAL
© 1998-2/B51-5413-00 (K/K) 3430
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 2
background image
CT-203/2050/KXF-W4010/W6010
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS............. 2
CONTROLS ............................................................... 3
ADJUSTMENT ........................................................... 5
PC BOARD ................................................................ 7
SCHEMATIC DIAGRAM ............................................ 9
EXPLODED VIEW ................................................... 16
PARTS LIST............................................................. 18
SPECIFICATIONS ................................................... 23
Beware of condensation
When water vapor comes into contact with the surface of cold
material, water drops are produced. If condensation occurs, cor-
rect 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:
q
When the unit is brought from a cold place to a warm place,
and there is a large temperature difference.
q
When a heater starts operating.
q
When the unit is brought from an air-conditioned place to a
place of high temperature with high humidity.
q
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.
Cautions
Operation to reset
The microcomputer may fail into malfunction (impossibility to oper-
ate. erroneous display, etc.) When the power cord is unplugged
while this unit is ON or due to an external factor. In this case, exe-
cute the following method to reset the microcomputer and return it
to normal condition.
Turn the power switch on and off again while pressing the stop
(
7)key on desk B.
¶ Please note that resetting microcomputer clears contentsstroed
in and returns it to the condition when it left the factory.
Contents
Audio cord ................................2
(E30-0505-05)
System control cord .....................1
(E30-2816-05)
Except for U.S.A., Mexico, Canada,
U.K., Europe and Australia
AC plug adaptor.......1
(E03-0115-05)
Note : CT-203 and CT-2050 is for USA and Canada market.
Accessories
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 3
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CT-203/2050/KXF-W4010/W6010
3
POWER
TAPE
B
1
8 PAUSE
REC/ARM
STEREO DUBLE CASSETTE DECK KX-W6080
AUTO REVERSE
REC LEVEL /BAL..
/ BIAS
MAX/R
MIN/L
MODE
REC OFF PLAY
TIMER
RESET B
AUTO BIAS
CCRS
MPX FILTER
NORM.-DUBB.-HIGH
TAPE
A
0
1
8 PAUSE
REC/ARM
AUTO REVERSE
1
1
RELAY REC
REV.MODE
DOLBY NR
RESET A
PHONES
-ON
­OFF
0
FORWARD
STOP
REVERSE
FORWARD
STOP
REVERSE
Deck A:
Playback and Recording
(KXF-W4010: Playback only)
Deck B:
Playback and
Recording
Eject button
0
Eject button
0
Operation key section
Display
PAUSE key
REC/ARM key
8
8
8
Fast reverse key
Fast forward key
POWER switch
PHONES jack
PAUSE key
REC/ARM key
Fast reverse key
Fast forward key
REC LEVEL/BAL. (BALANCE)/BIAS control knob
(KXF-W4010: REC LEVEL/BAL.only)
MODE key
TIMER switch
1
¡
1
¡
HIGH
DUBBING
HIGH DUBBING key
NORMAL DUBBING key
NORMAL
DUBBING
This Illustration shows the KXF-W6010 model.
Operation Indicators (Deck A)
Transport
direction
Recording indicator
(KXF-W6010 only)
Pause indicator
(KXF-W6010 only)
2, 3
8
Operation Indicators (Deck B)
Transport
direction
Recording indicator
Pause indicator
2, 3
REV.MODE
indicators
Peak level indicators
(Dolby NR reference level)
CCRS indicators
MPX indicator
BAL.BIAS LEVEL
indicators
(KXF-W4010:
BAL.,LEVEL only)
Deck B counter
AUTO BIAS indicator
DOLBY NR indicators
DUBBING indicators
NORMAL
HIGH
RELAY indicator
Deck A counter
DUBBING NORMAL HIGH DOLBY NR
AUTO BIAS
B C
B C
CONTROLS
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 6
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CT-203/2050/KXF-W4010/W6010
4
RESET B
AUTO BIAS
CCRS
MPX FILTER
NORM.-DUBB.-HIGH
RELAY REC
REV.MODE
DOLBY NR
RESET A
FORWARD
STOP
REVERSE
FORWARD
STOP
REVERSE
RESET B
AUTO BIAS
CCRS
MPX FILTER
REV.MODE
DOLBY NR
RESET A
FORWARD
STOP
REVERSE
FORWARD
STOP
REVERSE
RESET A key
(COUNTER)
DUBBING key
NORMAL
HIGH
MPX FILTER key
REV.MODE key
CCRS key
DOLBY NR key
RELAY REC key
AUTO BIAS key
RESET B key
(COUNTER)
STOP key
STOP key
Play keys
,
(For deck A)
Play keys
,
(For deck B)
RESET A key
(COUNTER)
MPX FILTER key
REV.MODE key
CCRS key
DOLBY NR key
AUTO BIAS key
RESET B key
(COUNTER)
STOP key
STOP key
Play keys
,
(For deck A)
Play keys
,
(For deck B)
Operation key section (KXF-W4010)
Operation key section (KXF-W6010)
CONTROLS
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 7
background image
REC
PLAY
LINEIN
LINEOUT
R
L
SYSTEM CONTROL
Oscilloscope
AG
AC voltmeter
AC voltmeter
Frequency counter
(A)
(B)
V Please refer to Automatic Adjustment for Playing, Recording, BIAS level adjustment.
(a) Azimuth adjustment screw
System connections
CT-203/2050/KXF-W4010/W6010
5
ADJUSTMENT
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 10

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