Kenwood DPJ 1070 Service Manual

Page 1

MULTIPLE COMPACT DISC PLAYER

IP=J695/JiO70/J207O

SERVICE MANUAL

KENWOOD

©1995-8 PRINTED IN KOREA
B51<5071-00 (K) 4010

DP-J695/J1070
KENWOOD badge Metallic cabinet
(343-0287-04) (A01 -3260-01)

Dressing panel

Front glass Knob (OPEN)
(B (Am-185604)

10-) (K27-2165-04)

Knob(POWEFt) Foot
(K29-e134-03) (J02-)

Slide switch(AC VOLTAGE SEL)
(331-3010-05)

Dressing plate Panel
(B03-2939-03) (A29-)

Knob(SKlF') Panel Knob
(K29-6134~03) (A60-) (K296084433)

Miniature phone jack(2P) Miniature phone jack(2P)
S CONT

(RELAY) .
(E1 1-0273-05) E1 1-0133-05)

AC Power cord' Power cord bushing
(530-) (J42-0083-05)

In compliance with Federal Regulations. following are reproductions of labels
on, or inside the product relating to laser product safety.

KENWOOD-Corp. cerlilies this equipment conlorms to DHHS Regulations
No.21 CFR 1040. 10, Chapter 1. Subchapter J.

DANGER : Laser radiation when open and interlock defeated.

AVOID DIRECT EXPOSURE TO BEAM.

Slide switch(FIEMO~CON MODE) Phono jack(4P)
(862-0037-05) (AUDIO)
(E63-0149-05)

Photo is DP-J1070.
*Refer to parts list on page 39.

Page 2

DP-J695/J1070/J207O

CONTENTS I ACCESSORIES

EXTERNAL VIEW(DP- J2070) ......
CONTROLS ...............
REMOTE CONTROL OPERATION
DISASSEMBLY FOR REPAIR ...........
BLOCK DIAGRAM ...........
CIRCUIT DESCRIPTION.
MECHANISM OPERATION DESCRIPTION ..

.20

ADJUSTMENT.
PC BOARD ..
SCHEMATIC DIAGRAM .
EXPLODED VIEW(MECHANISM)
EXPLODED VIEW(UNIT)...
PARTS LIST ...........
SPECIFICATIONS

Refer to the following service manual, if detailed description about items in the table below is needed.

Ref No. IC Name Reference SIM Page *1
rcr ch173230 DP.ME9 9,10 RC-P0201 A70-1013-15 DP-J207O KPYXTEG
rc2 CXDZSOOBQ DP-MA5/MA9 17,13 RC-F0201 A70-1040-05 DP-J2070 M
m cxozsrzAQ DP-Rso7o 7,8 Fro-P0100 A70-1014~15 DP-J695/J1070 KRPYX
FtC-POtOO A70~1041~05 DP-J695/J1070 M
Accessories
r V

7 riflnernoteAfiieA 7 7 7 77 fifAAAA
(wo1-oa79-05)

KENWOOD

Remote control unit (1)

l I ll

Battery cover : (A09-0303-08)

AATudio cord(1)
(E30-0505-05)

SfitEm control cordfi l.
(530-2733-05)

AC Plug adaptor (1)
(ens-011505) M type only

Removing the transport screws

Before using the unit, remove the 5 red transport screws
(long x 2, medium x 2, short x 1) on the rear panel.

The screws can be removed by rotating in the directions of the arrows.
After removing, be sure to retain the screws in a plastic bag. etc. They will
be required the next time the unit is transported.

Before transporting the unit again, remove all discs from the rack, switch
the power OFF and attach screws to their respective transport fixing
holes.

' This unit incorporates precision mechanisms. Avoid
applying shock to the unit after the transport screws have

Note been removed. Shock may cause malfunction of the
mechanisms.

Screwdriver
or coin

Transport screws
imediuml

Transport
screws
(long)

screw
Isholll

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 as it is for
several hours.)

Be especially careful in the following conditions:

0 When the unit is brought from a cold place to warm place. and there
is a large temperature diflarence.

I When a heater starts operating,

I When the unit is brought from an airconditioned place to a place of
high temperature with high humidity.

o when there is a large difference between the internal temperature of
the unit and the ambient temperature, or in conditions where
condensation occurs easily.

Page 36

DP-J695/J1 070/J2070

SPECIFICATIONS

Format

System ..
Laser
Number 0 c annels..
Playing rotation .........

. Compact disc digital audio system
. Semiconductor laser

. 2 channels

. 200 rpm ~ 500 rpm (CLV)

D/A Converters

DIA conversion... . 1 Bit
Oversampling ..... . 8 is (3528 kHz)
Audio

Frequency response ..
Signal to noise ratio ..
Dynamic range ......
Total harmonic distortion ..
Channel separation
Wow & flutter .....
_._Output.le.v.ell. p, ance

. 4 Hz ~ 20 kHz, 11.0 dB

. More than 98 dB

. More than 95 dB

. Less than 0.005 % (at 1 kHz)
. More than 85 dB (at 1 kHz)

. Unmeasurable Limit

Fixed 2.0 V/3.2 kn

General

Power consumption .. . 15 W

Dimensions ............ .. W: 440 mm (17-5/16'i
H : 185 mm (7-5/16')
D : 415 mm (165/169

Weight (Net) .................................................................. 10.8 kg (23.8 lb)

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

Note:

Component and circuity are subject to modification to insure best operation
under differing local conditions. This manual is based on the U.S.A. (K)
standard, and provides inlormation on regional circuit modification through use
of alternate schematic diagrams, and information on regional component
variations through use of parts list.

KENWOOD CORPORATION

14'6.Dogenzaka 1Wme, Shibuya»ku, Tokyo. 150 Japan

KENWOOD SERVICE CORPORATION

PO BOX W45, 2201 East Dominguez St. Long Beam, CA Kim-6745, USA
KENWOOD ELECTRONICS CANADA INC.
somKestrelRoadMssimugaomariofiamdaLsTlss

KENWOOD ELECTRONICS LATIN AMERICA S.A.
P.OBOX55-2791,Rsofima0iase,(147medehGualchPanalmR$lflc$Panama
TRIO-KENWOOD U.K. LIMITED

KENWOODHouse, DNightRoad, Walfotd, Hens..WDl BEE. Unitedlflngdom
KENWOOD ELECTRONICS BENELUX N.V.
moaeimmmgm

KENWOOD ELECTRONICS DEUTSCHLAND GMBH
malswmmcm

TRIO-KENWOOD FRANCE S.A.

WNW, 75018Parhfiame

KENWOOD ELECTRONICS ITALIA S. p. A.

VIaG. SiIlDrL7BZOIZS. Minna, IN]

KENWOOD IBERICA S. A.

WWW Spa'n

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD. (AQN. 001499 074)
P.050x504, BFigtreemve, maliacerme, Hum. N.&W.2140,Ausimlla
KENWOOD & LEE ELECTRONICS, LTD.

Um37123724. M37 Tonerl. WMMMMKWFGQNT lh'ngmg

KENWOOD ELECTRONICS SINGAPORE IPTE LTD.
NulGenlmg Lane/moo KENWOOD

KENWOOD ELECTRONICS (WALATSIW IA) SDN BHD
lOthFloor, BlodtB WmSeinantan,No.12JanlanGelenggang.BuldlDammara.50490
KualaLumpunMalays'a