Kenwood CT 2050 HU Service Manual

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CTiZOB/KXFillOMHK) COVER( 98.4.250:05PM y [W 3 EI\

CT-203/2050/KXF-W4010/W6010

CONTENTS / ACCESSORIES / CAUTIONS

Contents
CONTENTS / ACCESSORIES / CAUTIONS ............. 2 SCHEMATIC DIAGRAM ............................................ 9
CONTROLS .. 3 EXPLODED VIEW 16
ADJUSTMENT .. 5 PARTS LIST ......... 18
PC BOARD ................................................................ 7 SPECIFICATIONS ................................................... 23
Accessories
Audio cord .. .. System control cord Except for USA, Mexico, Canada,
(E30-0505-05) (E30-2816-05) U.K., Europe and Australia

AC plug adaptor ....... 1
(E03-0115-05)

Note : CT-203 and CT-2050 is for USA and Canada market.

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
(l)key on desk B.

0 Please note that resetting microcomputer clears contentsstroed
in and returns it to the condition when it left the factory.

Cautions

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:

I When the unit is brought from a cold place to a warm place,
and there is a large temperature difference.

0 When a heater starts operating.

0 When the unit is brought from an air-conditioned place to a
place of high temperature with high humidity.

0 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.

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CT-203/2050/KXF-W4010/W6010

SPECIFICATIONS

[MODEL: CT-2050/KXF- W6010]

Track System ....... .4 track, 2 channel stereo
Recording System .AC bias (Frequency: 105 kHz)
Heads ....................................... A DECK
Playback/recording heads ..1
Erasing head .. ...1
B DECK
Playback/recording heads ..1
Erasing head ...................... 1
Motors ....................................... A DECK ............. DC motor x 1
B DECK ............. DC motorx1
Wow and Flutter ....................... $0.17 % (IEC)
£0.28 % (DIN)
0.1 % (W.R,M.S)
Fast Winding Time ................... Approx. 110 seconds (C-60

tape)
Frequency Response

TYPE I tape .. 30 HZ to 18,000 Hz. :3 dB

TYPE 11 tape .. 30 Hzto19,000 Hz, :3 dB
Signal to Noise Ratio

Dolby NR OFF ........................ 56 dB

(IEC, 250 nWb/m, TYPE 11 tape)

Dolby NR OFF ........................ 59 dB

Dolby B NR ON ..

Dolby C NR ON ..

(3rd, H,D., 3 °/o, TYPE 11 tape)
Harmonic Distortion .................. Less than 1.2 /6

(at 315 Hz, 3rd H.D., 250 nWb/m, TYPE 11 tape)
Input sensitivity/Impedance

LINE IN ................................... 122.8 mV/47 k9
Output Level/Impedance
LINE OUT ............................... 775 mV/1.0 kQ
Headphones ........................... 0.5 mW/32 Q
[General]
Power Consumption 30W
Dimensions... W : 440 mm (15-3/4")
H ; 134 mm (5-9/16")
D ; 367 mm (15-3/8")
Weight (Net) ............................. 4.6 kg (10.6 lb)

KENWOOD follows a policy at continuous advancements in development. For
this reason specifications may be changed without notice.

[MODEL: CT-203/KXF-W4010]

Track System ...4 track, 2 channel stereo
Recording System. ...AC bias (Frequency: 105 kHz)
Heads ....................................... A DECK
Playback head .................... 1
B DECK
Playback/recording heads ..1
Erasing head... ...1
Motors ...................................... A DECK DC motorx 1
B DECK ...DC motorx1
Wow and Flutter ....................... :017 % (IEC)
i028 % (DIN)
0.1 % (W.FI.M.S)
Fast Winding Time ................... Approx. 110 seconds (C-GO

tape)
Frequency Response

TYPE I tape 30 Hz to 18,000 Hz, :3 dB

TYPE 11 tape .. ...30 Hz to 19,000 Hz, i3 dB
Signal to Noise Ratio

Dolby NR OFF ........................ 56 dB

(IEC. 250 nWb/m. TYPE 11 tape)

Dolby NR OFF. ...59 dB

Dolby B NR ON .. 68 dB

Dolby C NR ON ...................... 75 dB
(3rd, H,D., 3 %, TYPE 11 tape)

Harmonic Distortion.. ...Less than 1.2 %
(at 315 Hz, 3rd H.D., 250 nWb/m, TYPE 11 tape)

Input sensitivity/Impedance @
LINE IN ................................... 122.8 mV/47 k9
Output Level/Impedance
LINE OUT .....
Headphones.
[General]
Power Consumption.
Dimensions ............... ...W : 440 mm (15-3/4")
H : 134 mm (5-9/16")
D : 367 mm (15-3/8")
Weight (Net) ............................. 4.6 kg (10.6 lb)

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