Kenwood KXW 4080 Service Manual

Page 1

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STEREO DOUBLE CASSETTE DECK

KX-W4080NV6080

SERVICE MANAL
I 5,. 31%

KENWOOD

Illustration is KX-W6080.

F roni glass Knob (EJECT) Panel * Knob (EJECT) Front glass Cassette lid
(B1 0-21 73-04) (K29-6257-O4) (A60-) (K29-6258-04) (BI 0-21 73-04) (A53-)
KENWOOD
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'32! E
Knob (BU'ITON) Knob
(K27-2175-04) (K29-5828-04)
Cassette lid * Knob Knob " Knob Knob Knob
(A53-) (K294525603) (K29-) (K29-6253-03) (K29-6253»03) (K29-6256-03)
Slide swiich
Phono jack Miniature phone jack (2P) (POWEH TYPE) Power cord bushing

(E63-0136-15) (E1 1-0188-05)

(S31 -21 31-05) (J42-0083-05)

r 355.531. (32:3 1
'5? s©i 7H:
. : . : -
E =9: 5:5-
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Foot AC power cord
(J02-1148-13 ) (Eso- )

* Refer to parts list on page 21.

PRECAUTIONS FOR REPAIR

Refer to KX-W4070NV6070 service manual(BS1-5031-00)
information oFCIRCUIT DESCRIPTION.

, if you want to know more

Page 2

KX-W4080/W6080

CONTENTS I ACCESSORIES / CAUTIONS

Contents

CONTENTS / ACCESSORIES / CAUTIONS ............. 2
CONTROLS
ADJUSTMENT
PC BOARD ...................
SCHEMATIC DIAGRAM

Accessories

EXPLODED VIEW ................................................... 19
PARTS LIST .................. 21
PARTS DESCRIPTIONS. 25
SPECIFICATIONS ................................ BACK COVER

Audio cord ..

(530-0505-05) (E30-2816-O5)

Cautions

System control cord ..................... 1

Except for U.S.A., Mexico, Canada,
UK, Europe and Australia

AC plug adaptor ....... 1
(E03-01 15-05)

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:

0 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.

c 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.

00

KX-W4080/W6080

CONTROLS

This Illustration shows the KX-W6080 model.

Operation Indicators (Deck A)

<, > Transport Operation Indicators (Deck B)

4, > Transport

direction . . . .
, , . Peak level indicators direction
I Recording Indicator . Recording indicator
(KX'WSOBO OHIY) (Dolby NR reference level) I. Pause indicator

II Pause indicator

CCRS indicators . .
MPX Indicator

REV.MODE
[- indicators
(E, -m 45 -I0 4 4 I1 .2

7 BAL.BIAS LEVEL
indicators
(KX-W4OBO:
BAL.,LEVEL only)

Deck B counter

Deck A counter |

RELAY indicator AUTO BIAS indicator

DUBBING indicators DOLBY NR indicators
NORMAL

CD

Operation key section

Deck A: . A , A Deck B:
Playback and Recording Eject button - Eject button - Playback and
(KX

KENWOOD

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up: A

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o REC/ARM key
N PAUSE key
Fast forward key»
Fast reverse key «

II PAUSE key
0 REC/ARM key
Fast reverse key «
Fast tomard key »

POWER switch REC LEVEL/BAL. (BALANCE)/BIAS control knob
. (KX-W4080: REC LEVEL/BALonIy)
. PHONES jack MODE key
HIGH DUBBING key TIMER switch

NORMAL DUBBING key

Page 10

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KX-W6080/4080 (K)(2/2)

28A1 534A

28A992

28C1 845

2362003 3

2803246

28A1 535A

2SD2374

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DTA1 24 ES
DTC1 24ES
UN41 1 2
28A1 043
2802458

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28A1309A
2SC3311A

NJM4558D

BA1 0393
XL24C01 AP

HA12167FB

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BA17812T

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CAUTION: For continued safety, replt
components only with manufacturer's re
(refer to parts list). A indicates safety c
For continued protection against risk 0!
with same type and rating fuse(s). To
electric shock, leakage-current or resistai
shall be carried out (exposed parts are a:
from the supply circuit) before the applie
the customer.

The DC voltage is an actual reading me.
impedance type voltmeter with at ca
playback mode. The measurement
depending on the measuring instrumen
product Bias circuit DC voltage is mea
record mode.

DOLBY and the double-D symbol are tr:
Laboratories Licensing Corporation. Nois
made under license from Dolby Labor
Corporation.

UPC7812AHF

Y26-4100-10

KX-W4080/V