Jvc KDMK 88 Service Manual

Page 1

Contents
lSafety Precaution ..
Ilnstructions ........... 3
mLocaiion of main parts ...................................... 13
@Removal of main parts

IExternal case sections ................................. 15

IMechanism sections ...... 16

INoie when assembly 18
@Main adjustment .............................................. 21
ElTroubleshooting chart of

CD player section ............................................. 24

KD'M K88 AIB/C/E/G/GE/GllJ/U

Lfilfigffi

DIGITAL AUDIO

Area Sufllx

"Australia

.....U.K.
Canada
Continental Europe
.......... Germany
Eastern Europe
Ausiria and Switzland
..... ltaly
..U.S.A.
.oiner areas

[EDescripllon of pin function .4
[EBlock diagram ..................... . ..
EWiring connections ............................................... 33
@Slandard schematic diagram .
@Location of p.c.board parts .....
@Exploded view of
enclosure component ..
fijExploded View of
mechanism component parts ........
@Packing llluslralion and parts list...

COPYRIGHT 197 1997 VICTOR COMPANY OF JAPAN, LTD.

No.4941 7
January 1997

Page 2

M K88 AIBchEIGIGEIGiIJIU

lSafety Precautions

J (USA) Only
Important for Laser Products

1. CLASS 1 LASER PRODUCT

2. DANGER: invisible laser radiation when open and in-
terlock failed or defeated. Avoid direct exposure to beam.

3. CAUTION: Do not open the bottom cover. There are no
user serviceable parts inside the unit; leave all servicing
to qualified service personnel.

4. CAUTION: The compact disc player uses invisible laser
radiation and is equipped with safety switches which pre-
vent emission of radiation when unloading cartridge and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.

5. CAUTION: Use of controls of adjustments or perfor-
mance of procedures other than those specified herein
may result in hazardous radiation exposure.

6. CAUTION: The laser is able to function, if safety swit-
ches are out of function. The laser light is invisible. avoid
exposure, do not disassemble the laser unit, but replace
the complete unit.

B/E/G Only
important for Laser Products

1. CLASS 1 LASER PRODUCT

2. DANGER: invisible laser radiation when open and in-
terlock failed or defeated. Avoid direct exposure to beam.

3. CAUTION: Do not open the bottom cover. There are no
user serviceable parts inside the unit: leave all servicing
to qualified service personnel.

4. CAUTION: The compact disc player uses invisible laser
radiation and is equipped with safety switches which pre-
vent emission of radiation when unloading cartridge and
the safety interlocks have failed or are defeated. it is
dangerous to defeat the safety switches.

5. CAUTION: Use of controls of adjustments or perfor-
mance of procedures other than those specified herein
may result in hazardous radiation exposure.

Identification And Certification Labels
NAME/RATING PLATE
L o ' o

O 0
Rear panel of the unit

us JVC CORP. 4| SLATER DRIVE
ELMWOOD PARK. NJ. 07407
MANUFACTURED AT_

MADE lN _'~_'
Product camel-us wnn DHHS Rules 21
CFR Subchaptor J in effect at date of
manufacture
MANUFACTURED

'1

Notes

'1 The date of manufacture.

'2 The iD code of manufacturing plant.
'3 Marking of country origin.

Position And Reproduction 0f Labels
NAME/RAiiING PLATE

Rear panel of the unit

CLASS
LASER

1
PRODUCT

Gas:
Appalalen innehaller laser-
komponent av hogre laserkiass

an kiass 1.
Top panel of lhe unit

,. ......... . Geralaoberseite
ADVERSEL: Usynliq laseratrdling ved éhning. nér sik- i _________ i Panneau superior 6 rm
korhedsafbrydere er ude of funktion. Undga [r
udsattelse for stréling. i
VAROITUS: Varmuuskytitirnen oliesaa pols pa'aita kun
laite evataan. sieilib kehittyy nikym'atobta lasersateili.
All pane itseisi sateilyn altiikei.
VARNING: Osynlig Iaserstéining uppstAr vid kom-
nonentans awning nér sékerhetshrvtmn iv warn: lmsoll later mm an mum: Osyilio m» Vitamin»-
frénslagen. mammalian-mid :1le m, is running mama an mama
ADVARSEL: Usvniing laserstrhling ved apning nar siit- m [magnum a W. 1: :Wémm in: at m m
kerhetsbryteren er ude sf funktion Unnqa utsettelse mm m I'm (a; M (ii M ill
for stifling.

2 (No.49417)

C

a
E
a

Page 20

-MK88 (warmest/m

2. Insert into the uppermost position.

9 Installing the Lifter and Rear Panel

1. Check the gear position of magazine plate.

2. Press the lifter into the hook. then install the lifters front
side to the uppermost position.

. Install the lifter sensor flexible wire onto the motor PCB,

. Set the rear panel slider to the direction of arrow.

. Use your finger to fix the rear panel ass'y slider.

0')ka

.Engage the lifter at the uppermost position of rear panel
assy.
7. Install the rear panel and check that the end of slider gear

and gear mark are aligned.

Front rith side

20 (No.49417)

3. install into the motor P.C,B.ass'y

6. Insert the panel into the uppermost
position of rear panel,

5.!nsert your index finger
and fix the slider in the

moved position.

Align the lirst groove ol slider to me marked posmon.

Fig. 2 - t7

\

5