JVC MC-8100U User manual

SERVICE MANUAL
MC-8100U
No. 6124
Jan. 2001
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
SPECIFICATIONS
Printed in Japan
MC-8100U
MC-8100U No. 6124
CD/DVD LIBRARY
R
VICTOR COMPANY OF JAPAN, LIMITED
is a registered Trademark owned by VICTOR COMPANY OF JAPAN, LTD.
is a registered Trademark in Japan, the U.S.A., the U.K. and many other countries.
R
R
R
100% recycled paper
: 100
: 2
: Temperature: 5°C-35°C (41°F-95°F)
Humidity: 10%-80% (no condensation)
: AC120 V - 240 V
: 50 Hz / 60 Hz
: 1.4 A - 0.8 A (max. value),
1.1 A - 0.6 A (4 Drives are loaded)
: 105 W (Reference value,
4 DVD-RAM drives are loaded)
: SCSI-2 (Amphenol 50-pin full size)
: 4
: 12 cm discs
Number of stored discs
Number of magazines
Operating environment
Rated power voltage
Rated power frequency
Rated current
Power Consumption
Interface
Drive slots rack bays
Media size
Availabel drives Compatible discs
: DVD-RAM drive
MC-R400U Rec/Play DVD-RAM with4.7 GBytes/side
and 2.6 GBytes/side
Play DVD-ROM, CD-ROM/R, etc.
MC-R200U Rec/Play DVD-RAM with 2.6 GBytes/side
Play DVD-ROM, CD-ROM/R, etc.
DVD-ROM drive
MC-D104U Play DVD-ROM, CD-ROM/R, etc.
CD-ROM drive
MC-D32U Play CD-ROM/R, etc.
MC-D18U
CD-R drive
MC-R18U Rec/Play
CD-R, CD-RW (Records with MC-R18U only)
MC-R14U CD-ROM/R, etc.
MC-R12U Play
For the specifications of the drives, refer to their relevant instruction manuals.
For other drives, consult your dealer or nearest JVC service center.
: Double-sided disc compatible carrier: MC-CF10U
: Magazine set: MC-M25U (B)
: Compatible with color disc printer (MC-AP30U)
: 42 kg(Excluding the discs and optional equipment)
Applicable options
Drives
Carrier
Magazine
Printer
Weight

TABLE OF CONTENTS
Section Title Page Section Title Page
Important Safety Precautions
INSTRUCTIONS
1. CIRCUIT BOARD COMPATIBILITY ............................. 1-1
2. PRODUCT SPECIFIC SERVICE ITEMS
2.1 REMOVAL OF MAJOR PARTS ............................. 2-1
2.1.1 REPLACEMENT OF FUSES AND BATTERIES ...... 2-1
2.1.2
OPENING/CLOSING THE DOOR AND PANEL REMOVAL ....... 2-2
2.1.3 REMOVING THE MAGAZINE ............................... 2-3
2.1.4 REMOVING THE DRIVE ....................................... 2-4
2.1.5 REMOVING THE SIDE STAY R ............................. 2-4
2.1.6 REMOVING THE CARRIER MECHANISM ........... 2-5
2.1.7 REMOVING THE SIDE PANEL L .......................... 2-6
2.1.8 REMOVING THE SIDE PANEL R .......................... 2-6
2.1.9 REMOVING THE REAR PANEL ............................ 2-6
2.1.10 REMOVING THE POWER SUPPLY UNIT ............. 2-6
2.1.11 REMOVING THE CHASSIS PCB ........................... 2-7
2.1.12 REMOVING THE SCSI PCB .................................. 2-7
2.1.13 REMOVING THE MAIL SLOT ............................... 2-8
2.1.14 REMOVING THE TOP PANEL .............................. 2-8
2.1.15 REMOVING THE U/D MOTOR .............................. 2-9
2.1.16
HOW TO OPERATE WITH THE DOOR OPEN (FOR SERVICING) ... 2-9
2.2 SPECIAL OPERATION MODE ............................ 2-10
2.2.1 RUNNING MODES ............................................. 2-10
2.2.2 ACCESS COUNTER CLEARANCE ...................... 2-12
2.2.3 MANUAL OPERATION ....................................... 2-12
2.2.4 PACKING MODE ................................................ 2-14
2.2.5 TRAY AUTO RETURN MODE ............................. 2-14
2.2.6 MEMORY CLEAR MODE ................................... 2-14
2.2.7 DISC/TRAY CHECK MODE ................................. 2-15
2.2.8 AUTO CHECK MODE ......................................... 2-15
2.2.9 DRIVE DETECTION MODE ................................. 2-15
2.2.10 AUTO DISC/TRAY CHECK ON/OFF SETTING ..... 2-16
2.3 SELF-DIAGNOSTIC DISPLAY .............................. 2-16
2.3.1 DISPLAYING TROUBLE HISTORY ...................... 2-16
2.3.2 DISPLAY WHEN TROUBLE OCCURS ................ 2-17
2.3.3 ERASING THE TROUBLE HISTORY ................... 2-18
2.3.4 ERROR CODE LIST ............................................ 2-18
2.4 MAINTENANCE MODE ...................................... 2-19
2.4.1 OUTLINE ............................................................. 2-19
2.4.2 ELECTRICAL SPECIFICATIONS .......................... 2-19
2.4.3 MAINTENANCE TYPES AND CONDITIONS ....... 2-19
2.4.4 ACTIVATING THE MAINTENANCE MODE ......... 2-19
2.4.5 MAINTENANCE PROGRAM ............................... 2-19
2.5 MAINTENANCE AND PERIODICAL CHECK ....... 2-20
2.6 COUNTERMEASURES AGAINST
MECHANICAL TROUBLE (FOR MC-R400U) ...... 2-21
2.7 COUNTERMEASURES AGAINST
MECHANICAL TROUBLE (FOR MC-R200U) ...... 2-22
3. DIAGRAMS AND CIRCUIT BOARDS
3.1 CD/DVD LIBRARY BLOCK DIAGRAM .................. 3-1
3.2 CHASSIS BLOCK DIAGRAM ................................ 3-2
3.3 OVERALL WIRING DIAGRAM .............................. 3-3
3.4 CHASSIS SCHEMATIC DIAGRAM ........................ 3-4
3.5 CHASSIS CIRCUIT BOARD .................................. 3-5
3.6 SCSI SCHEMATIC DIAGRAM ............................... 3-6
3.7 SCSI CIRCUIT BOARD .......................................... 3-7
3.8 CARRIER SCHEMATIC DIAGRAM ....................... 3-8
3.9 CARRIER CIRCUIT BOARD .................................. 3-9
3.10 MAIL SLOT SCHEMATIC DIAGRAM .................. 3-10
3.11 MAIL SLOT CIRCUIT BOARD ............................. 3-11
3.12 S. MOT SCHEMATIC DIAGRAM ........................ 3-12
3.13 S. MOT CIRCUIT BOARD ................................... 3-13
3.14 DISPLAY SCHEMATIC DIAGRAM ...................... 3-14
3.15
DISPLAY CIRCUIT BOARD AND OTHER BOARD ....... 3-15
3.16 BLOCK DIAGRAMS OF IC’S ............................... 3-16
4. EXPLODED VIEW AND PARTS LIST
4.1 FINAL ASSEMBLY M1......................................... 4-1
4.2 FINAL ASSEMBLY PARTS LIST M1..................... 4-2
4.3 CARRIER MECHANISM ASSEMBLY M2 ............ 4-5
4.4
CARRIER MECHANISM ASSEMBLY PARTS LIST M2.... 4-6
4.5 MAIL SLOT ASSEMBLY M3................................ 4-7
4.6 MAIL SLOT ASSEMBLY PARTS LIST M3............ 4-8
4.7 MAGAZINE ASSEMBLY M4 ................................ 4-9
4.8 MAGAZINE ASSEMBLY PARTS LIST M4............ 4-9
4.9 IL BRACKET ASSEMBLY M5............................. 4-10
4.10 IL BRACKET ASSEMBLY PARTS LIST M5......... 4-10
4.11 U/D MECHANISM ASSEMBLY M6 .................. 4-11
4.12
U/D MECHANISM ASSEMBLY PARTS LIST M6 ..... 4-12
5. ELECTRICAL PARTS LIST
5.1
CHASSIS BOARD ASSEMBLY PARTS LIST 01 ........... 5-2
5.2
CONNECTOR BOARD ASSEMBLY PARTS LIST 02 .... 5-5
5.3 RS232C BOARD ASSEMBLY PARTS LIST 03.... 5-5
5.4
S.MOT BOARD ASSEMBLY PARTS LIST 04 .......... 5-5
5.5 SCSI BOARD ASSEMBLY PARTS LIST 05 ......... 5-6
5.6 DISPLAY BOARD ASSEMBLY PARTS LIST 06... 5-7
5.7
MAIL CN BOARD ASSEMBLY PARTS LIST 07 ... 5-7
5.8
ROT SENSOR BOARD ASSEMBLY PARTS LIST 08 ... 5-7
5.9
MG SENSOR BOARD ASSEMBLY PARTS LIST 09 .... 5-7
5.10
CARRIER MEC BOARD ASSEMBLY PARTS LIST 10 ... 5-8
5.11
R CATCH BOARD ASSEMBLY PARTS LIST 11 ........... 5-8
5.12
L CATCH BOARD ASSEMBLY PARTS LIST 12 ........... 5-8
5.13
LOADING BOARD ASSEMBLY PARTS LIST 13 .......... 5-9
5.14
TRAY LOCK BOARD ASSEMBLY PARTS LIST 14 ....... 5-9
5.15
LANE2 SEN BOARD ASSEMBLY PARTS LIST 15 ....... 5-9
5.16
L ADD SEN BOARD ASSEMBLY PARTS LIST 16 ....... 5-9
5.17
R ADD SEN BOARD ASSEMBLY PARTS LIST 17 ....... 5-9
5.18
DISK SEN R BOARD ASSEMBLY PARTS LIST 18 ....... 5-9
5.19
DISK SEN T BOARD ASSEMBLY PARTS LIST 19 .... 5-10
5.20
MAIL SLOT BOARD ASSEMBLY PARTS LIST 20 .... 5-10
5.21
SENSOR BOARD ASSEMBLY PARTS LIST 21 ......... 5-10
5.22
POSI IN BOARD ASSEMBLY PARTS LIST 22 .......... 5-10
6. PACKING ..................................................................... 6-1

Important Safety Precautions
Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes
of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the
following precautions when a set is being serviced.
Fig.1
1. Locations requiring special caution are denoted by labels and
inscriptions on the cabinet, chassis and certain parts of the
product. When performing service, be sure to read and com-
ply with these and other cautionary notices appearing in the
operation and service manuals.
2. Parts identified by the symbol and shaded ( ) parts are
critical for safety.
Replace only with specified part numbers.
Note: Parts in this category also include those specified to com-
ply with X-ray emission standards for products using
cathode ray tubes and those specified for compliance
with various regulations regarding spurious radiation
emission.
3. Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as specified.
4. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
5. Use specified insulating materials for hazardous live parts.
Note especially:
1) Insulation Tape 3) Spacers 5) Barrier
2) PVC tubing 4) Insulation sheets for transistors
6. When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
Power cord
Fig.2
10. Also check areas surrounding repaired locations.
11. Products using cathode ray tubes (CRTs)
In regard to such products, the cathode ray tubes themselves,
the high voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the cath-
ode ray tubes and other parts with only the specified parts.
Under no circumstances attempt to modify these circuits.
Unauthorized modification can increase the high voltage value
and cause X-ray emission from the cathode ray tube.
12. Crimp type wire connector
In such cases as when replacing the power transformer in sets
where the connections between the power cord and power
transformer primary lead wires are performed using crimp type
connectors, if replacing the connectors is unavoidable, in or-
der to prevent safety hazards, perform carefully and precisely
according to the following steps.
1) Connector part number : E03830-001
2) Required tool : Connector crimping tool of the proper type
which will not damage insulated parts.
3) Replacement procedure
(1) Remove the old connector by cutting the wires at a point
close to the connector.
Important : Do not reuse a connector (discard it).
Fig.7
cut close to connector
Fig.3
(2) Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands to
avoid frayed conductors.
15 mm
Fig.4
(3) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Connector
Metal sleeve
Fig.5
(4) As shown in Fig.6, use the crimping tool to crimp the
metal sleeve at the center position. Be sure to crimp fully
to the complete closure of the tool.
1
Precautions during Servicing
7. Observe that wires do not contact heat producing parts
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
8. Check that replaced wires do not contact sharp edged or
pointed parts.
9. When a power cord has been replaced, check that 10-15 kg of
force in any direction will not loosen it.
1.25
2.0
5.5
Crimping tool
Fig.6
(5) Check the four points noted in Fig.7.
Not easily pulled free Crimped at approx. center
of metal sleeve
Conductors extended
Wire insulation recessed
more than 4 mm

 Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compli-
ance with safety standards.
1. Insulation resistance test
Confirm the specified insulation resistance or greater between power cord plug prongs and
externally exposed parts of the set (RF terminals, antenna terminals, video and audio input
and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
2. Dielectric strength test
Confirm specified dielectric strength or greater between power cord plug prongs and exposed
accessible parts of the set (RF terminals, antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
3. Clearance distance
When replacing primary circuit components, confirm specified clearance distance (d), (d’) be-
tween soldered terminals, and between terminals and surrounding metallic parts. See table 1
below.
4. Leakage current test
Confirm specified or lower leakage current between earth ground/power cord plug prongs
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug prongs and externally exposed accessi-
ble parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and
following table 2.
5. Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in,
Video out, Audio in, Audio out or Fixing screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.
d'
d
Chassis
Power cord,
primary wire
Region
USA & Canada
Europe & Australia
Grounding Impedance (Z)
Z 0.1 ohm
Z 0.5 ohm
≤
≤
AC inlet
Earth pin
Exposed accessible part
Milli ohm meter
Grounding Specifications
Fig. 10
ab
c
V
A
Externally
exposed
accessible
p
art
Z
Fig. 9
Fig. 8
Clearance Distance (d), (d')
d, d' 3 mm
d, d' 4 mm
d, d' 3.2 mm
–
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 miute
AC 900 V 1 minute
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
Japan R 1 MΩ/500 V DC
USA & Canada
Europe & Australia R 10 MΩ/500 V DC
Region
Insulation Resistance (R)
≤
≤
≤
≤
≤
≤
≤
≤
AC 3 kV 1 minute
(Class 2)
AC 1.5 kV 1 minute
(Class 1)
d 4 mm
d' 8 mm (Power cord)
d' 6 mm (Primary wire)
Table 1 Specifications for each region
a, b, cLeakage Current (i)AC Line Voltage
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Japan
USA & Canada
i 1 mA rms Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
Europe & Australia
Region Load Z
≤
≤
≤
≤
≤
≤
1 kΩ
2 kΩ
1.5 kΩ
0.15 µF
50 kΩ
Table 2 Leakage current specifications for each region
Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
2

MC-8100U
SS961554-002
INSTRUCTIONS
CD/DVD LIBRARY
BEDIENUGSANLEITUNG : CD/DVD-BIBLIOTHEK
MANUEL D’INSTRUCTIONS : BIBLIOTHEQUE CD/DVD
MC-8100U
ENGLISHDEUTSCHFRANÇAIS
CD/DVD
This instruction book is made from 100% recycled paper.
For Customer Use:
Enter below the Model No. and Serial
No. which is located on the side of the
cabinet. Retain this information for
future reference.
Serial No.
MC-8100U
Model No.

2
IMPORTANT
The wires in this mains lead are coloured in accordance with
the following code:
GREEN - and - YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
As the colours of the wires in the mains lead of this apparatus
may not correspond with the coloured markings identifying
the terminals in your plug. proceed as follows.The wire which
is coloured GREEN-AND-YELLOW must be connected to the
terminal in the plug which is marked with the letter E or the
safety earth symbol or coloured GREEN or GREEN-AND
YELLOW.The wire which is coloured BLUE must be connected
to the terminal which is marked with the letter N or which is
coloured BLACK. The wire which is coloured BROWN must
be connected to the terminal which is marked with the letter L
or coloured RED.
For Europe
IMPORTANT FOR LASER PRODUCT
1. CLASS 1 LASER PRODUCT
2. DANGER : Invisible laser radiation when open and interlock
failed or defeated. Avoid direct exposure to beam.
3. CAUTION : Do not open the top cover.There are no user serv-
iceable parts inside the unit: leave all servicing to qualified
service personnel.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in
hazardous radiation exposure.
Note
Place a cover on the terminal when not in use.
Static may cause a malfunction or failure of the unit.
WARNING–THIS APPARATUS
MUST BE EARTHED
The lightning flash with arrowhead symbol, within
an equilateral triangle is intended to alert the
user to the presence of uninsulated “dangerous
voltage” within the product's enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.
WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS UNIT TO RAIN OR MOISTURE.
CAUTION
Do not put your hand in. The hand may be trapped and injured as a result.
REPRODUCTION OF LABELS
CLASSIFICATION LABEL, PLACED ON
REAR ENCLOSURE.
(Except for the U.S.A. and Canada)
CLASS 1
LASER PRODUCT
Note : Classaification Label is placed on rear panel.
For North America
Information for USA
NOTE: This equipment has been tested and found to comply
with the limits for a Class A digital device,pursuant to
Part 15 of the FCC Rules.
These limits are designed to provide reasonable pro-
tection against harmful interference when the equip-
ment is operated in a commercial environment.
This equipment generates,uses,and can radiate radio
frequency energy and,if not installed and used in ac-
cordance with the instruction manual,may cause harmful
interference to radio communications.Operation of this
equipment in a residential area is likely to cause harm-
ful interference in which case the user will be required
to correct the interference at his own expense.
Information for Canada
This product complies with D.O.C limits (C.R.C., C. 1374)
pertaining to class A digital apparatus.
Informations pour le Canada
Ce produit est en conformité avec les normes D.O.C (C.R.C.,
C. 1374) concernant les appareils numériques de classe A.
Warning
This is a Class A product. In a domestic en-
vironment this product may cause radio in-
terference in which case the user may be
required to take adequate measures.

3
ENGLISH
Thank you for purchasing the JVC MC-8100U CD/DVD Library
•Large capacity
Up to 100 optical discs*1(12 cm discs) can be accom-
modated.
•Double-sided disc compatibility
DVD-RAM double-sided discs may also be accommo-
dated, by adding an optional carrier*3.
*1 Media compatible with the library varies depending on the installed drive types. For details, refer to the instruction
manuals of the relevant drives.
*2 For the compatible optional drives, see Specifications on page 31.
*3 MC-CF10U: Optional Carrier.
Special Features
The MC-8100U CD/DVD Library is a highly reliable and durable disc changer equipped with large capacity and high
access speed to cope with the ever-changing needs of the rapidly developing information network age. This model is
suitable for business as well as home use.
CAUTION
The magazines and trays used with the MC-1000/2000 series CD-ROM Library (MC-M15U) and MC-7000 series
DVD-RAM (MC-M25U) are not compatible with those used with the MC-8000 series CD/DVD Library. Do not inter-
change the magazines and trays between these models, as this will damage the equipment.
•Four drive bay slots
Four drive bay slots are provided so up to 4 drives*2
can be installed.
The following table shows the items provided in the package. Always check thoroughly that all the items are present when
unpacking.
CAUTION
This equipment is supplied with an internal mechanism lock and protective materials.The lock should be opened
and the protective materials removed before use.
Be sure to perform the unlocking and removal operations in accordance with the corresponding information in
this manual. (APage 10,11,12)
PACKAGED ITEMS
Item Qty
Main unit 1
Door opening/closing keys 2
Main unit power cord (2.5 m) 2
Clamp filters (with belt) 2
Instructions (this manual) 1
CAUTION
This product does not include drives. Optional drives should be purchased and installed before using the prod-
uct. After installing, adding or replacing drives, be sure to execute the automatic drive detection mode as de-
scribed on page 22. Malfunctions may occur if this procedure is not performed.
CAUTION
If a media that is not compatible with any of the installed drives is used in the library, malfunctions will result.To
prevent this happening, be sure to check the instruction manuals of the optional drives in order to confirm that
the media to be accommodated is compatible with the drive.

4
CONTENTS
1. PRECAUTIONS ..................................................................................................................................................... 5
 Installation and handling precautions ................................................................................................................. 5
 Disc handling precautions .................................................................................................................................. 5
2. NAMES AND FUNCTIONS OF PARTS ................................................................................................................. 6
2-1. Front panel, right side panel, rear panel ........................................................................................................ 6
2-2. Interior............................................................................................................................................................ 7
2-3. Magazine numbers, tray numbers, disc numbers .......................................................................................... 8
2-4. Internal SCSI cable ........................................................................................................................................ 8
3. SETUP ................................................................................................................................................................... 9
3-1. Opening the transport lock ........................................................................................................................... 10
3-2. Removing the transport protective materials ............................................................................................... 11
3-3. Removing the optional carrier transport lock screw ..................................................................................... 12
3-4. Installing drives and settings SCSI-ID No., etc. ........................................................................................... 12
3-5. Connecting the power cord and cables........................................................................................................ 13
4. CONTROL PANEL OPERATIONS AND LCD DISPLAY ..................................................................................... 14
4-1. Normal display ............................................................................................................................................. 14
4-2. Menu display ................................................................................................................................................ 14
4-3. Event display................................................................................................................................................ 15
4-4. Display and operation sequence ................................................................................................................. 16
5. DOOR OPENING/CLOSING ................................................................................................................................ 17
6. MAIL SLOT .......................................................................................................................................................... 18
6-1. Disc loading ................................................................................................................................................. 18
6-2. Import/export operation ............................................................................................................................... 19
7. DRIVE UNITS ....................................................................................................................................................... 21
7-1. Removing the panels ................................................................................................................................... 21
7-2. Installing the drive units ............................................................................................................................... 21
7-3. Setting the SCSI-ID numbers, etc. ............................................................................................................... 22
7-4. Connecting the cables ................................................................................................................................. 22
7-5. Installing the panels ..................................................................................................................................... 22
7-6. Automatic drive detection mode .................................................................................................................. 22
7-7. Drive type display......................................................................................................................................... 22
8. SETUP OF SCSI ID NUMBER OF THE MAIN UNIT ........................................................................................... 23
8-1. Display for checking the SCSI ID numbers .................................................................................................. 23
9. MAGAZINES ........................................................................................................................................................ 24
9-1. Ejecting/loading the magazines ................................................................................................................... 24
9-2. Loading/replacing the discs ......................................................................................................................... 25
9-3. Automatic disc checking function ................................................................................................................. 26
10. ERROR CODES ................................................................................................................................................... 27
10-1. Error code explanation ................................................................................................................................. 27
10-2. Error code list............................................................................................................................................... 28
10-3. How to cancel the Error "64" ........................................................................................................................ 28
10-4. Error history display ..................................................................................................................................... 29
10-5. Troubleshooting ........................................................................................................................................... 29
11. ACCESS COUNTS .............................................................................................................................................. 30
SPECIFICATIONS ..................................................................................................................................................... 31

5
ENGLISH
1. PRECAUTIONS
 Installation and handling precautions
(1) Opening the transport lock
•Make sure that the transport lock is released and all trans-
port protective materials are removed before turning on the
power. Failure to do so will result in equipment malfunction.
(2) Location of installation
•Do not install the equipment near a source of vibration such
as motor, engine or loudspeaker.They may adversely affect
the equipment performance.
•If the equipment is to have a fixed installation, we advise
you to give sufficient allowance for space so that extension
and replacement of optional units and other operations such
as replacement and maintenance can be easily performed.
For details, please consult your dealer or nearest JVC-au-
thorized service agent.
(3) Condensation
•If the equipment which has been left in a cold room for a
long period of time and is moved to a warm room or if the
temperature of the room suddenly increases, condensation
may occur on a mobile part, optical pickup or a disc inside
the equipment with a disabling effect. If this occurs, do not
use the equipment for a few hours before starting it again.
(4) Interference with reception of other devices
•When this equipment is used near a radio receiver such as
a radio, television or BS tuner, reception of radio waves on
these devices may experience interference.
(5) Use in a strong radio wave environment
The equipment may not function properly if it is used in a
strong radio wave environment, for example near an illegal
radio station or a broadcasting station. If this happens, please
consult your dealer or nearest JVC-authorized service agent.
(6) Compatible media
Media compatible with the MC-8100U varies depending on
the drive in which it is accommodated. For details, refer to
the instruction manual of the relevant drive.
 Disc handling precautions
A disc is made of plastic material which can be easily dam-
aged. If the discs are damaged or become dirty, it may lead to
malfunction such as incorrect data readout.To prevent this han-
dle the discs with care so that they will stay free of damage,
stain, dust/dirt adhesion, warping, etc.
(1) Do not touch the reflective surface (data surface) of a
disc directly with your hand. Be sure to use special care
when handling double-sided discs.
(2) Use commercially available cleaning kits such as a CD
cleaner to remove dust and/or dirt from the disc sur-
face.
•Gently wipe-clean the disc surface without scratching it.
(Make sure to wipe from the centre of the disc towards the
outer edge. Never use a circular motion.)
•Always wipe from the centre to the outer edge.
(3) Do not use chemicals for disc cleaning.
•Never use any solvents other than those included in the
cleaning kits.
•Never use analogue record cleaning fluid, benzene, alcohol
or anti-static agent.
(4) Do not damage the label surface
•Damage to the label surface also affects the data surface
immediately underneath it.
•Do not attach pieces of paper or adhesive tape to either
side of the disc.
•When you need to write on the label surface, please use a
permanent ink felt-tip pen.
Writing implements with hard tips such as ball-point pens
and pencils should not be used as they will damage the
surface.
(5) Periodical cleaning of the discs is recommended.
•Periodical disc cleaning may be required depending on the
equipment installation environment and disc handling
method.
(7) Installation environment
•This equipment has been designed with consideration for
dust protection, but its structure is not dust-proof. There-
fore, if it is used in an environment where cigarette smoke
and/or dust are present, the lens of the drive or a disc will
become dirty and stop functioning correctly. Using the equip-
ment in these conditions should be avoided. If, however, you
have to use it in a dusty environment, make sure to carry
out ‘maintenance & regular inspection’at an earlier interval.
•If the equipment is used outside of the suitable temperature
and humidity range, the drive life may become greatly short-
ened. Please make sure to use the equipment in an appro-
priate environment.
(8) Backup
•JVC cannot accept responsibility for any loss of data and/or
any other direct and indirect damage caused by the use or
malfunctioning of this equipment. We therefore strongly ad-
vise that all important data should be fully backed up in case
of unexpected loss.
•When this equipment is used with a system which runs con-
tinually for 24 hours or which cannot be turned off at all, we
recommend a redundancy design such as [a] back-up sys-
tem on the system.
(9) Never take the equipment apart.
•Fire and electric shock may result. Do not try to take apart
or modify this equipment or the drive units inside.
(10) Cleaning
•Do not use solvents (paint thinner, benzene, etc.), cleaning
products containing abrasives, anti-static agent, cloth soaked
in detergent and silicon cloth.They can cause discoloration.
•Wipe-clean using a well-squeezed cloth which has been
soaked in a neutral detergent.
* Always from the centre to outer edge

6
2. NAMES AND FUNCTIONS OF PARTS
1POWER switch ................... Turns the main unit power on/off. "I": On. "O": Off.
2Power indicator ................. Lights up when the POWER switch is on. Blinks in case of error during operation.
3LCD display ....................... Shows information using alphanumeric characters.
4MODE key .......................... Used for LCD page selection and other operations.
5SELECT key ....................... Used for switching mode displays and other operations.
6LOAD/EJECT key .............. Opens or close the mail slot.
7ENTER key ......................... Used for LCD page selection and other operations.
810-key ................................. Used for selecting tray Nos. and changer SCSI ID Nos. for import/export operations.
9Mail Slot ............................. Used for disc insertion/ejection.
0Key cylinder ....................... After completing the door opening mode, insert a key in the cylinder and turn it counterclockwise.
!Rear panel .......................... Opened and closed when installing or replacing drive units.
@SCSI connectors ............... One SCSI-2 connector port system (A: IN, B: OUT) is provided as standard.
#RS-232C connector ........... 9-pin D-sub connector (plug) for use in maintenance.
$AC inlet (main unit) ........... Insert the provided power cord in the AC inlet and plug the other end to a 120 V - 240 V,
50 Hz/60 Hz AC power outlet.
%Side panel (Drive) .............. Open and close when installing or replacing drive units.
^, &Side panel (Printer) ..... To be removed when incorporating the optional MC-AP30U color disc printer.
2-1. Front panel, right side panel, rear panel
Front panel Right side panel Rear panel
1
MODE SELECT LOAD/EJECT
POWER
ENTER
1 2 3
4 5 6
7 8 9
0
2
3
45 6 7
8
SCSI-A
SCSI-B
Control panel : the display section and the keys (
2
-
8
) will be
referred to as the control panel.
!
^
&
$
#
@
0
9
%

7
ENGLISH
2-2. Interior
Names and Functions of Parts
9Mail slot .............................. Used for disc insertion/ejection.
*Mail slot transport lock ..... Locks the mail slot during transport.
(Magazines .......................... Each magazine has 50 trays accommodating up to 50 discs.
)Drive bays .......................... Accommodation for up to 4 drive units is compatible with this product. The bays are num-
bered 1, 2, 3 and 4 from the bottom.
⁄Carrier ................................ Transports the trays (discs) between the magazines and the mail slot, drive units or printer.
¤Carrier transport lock ....... Locks the carrier during transport.
‹
Optional carrier transport lock ... To be locked before transport when the MC-CF10U Optional Carrier is installed.
›Transport lock screw storage hole
(for optional carrier) .......... Attach the transport lock screw provided with the MC-CF10U Optional Carrier to this hole.
fiCenter panel ...................... To be removed only for maintenance, etc. Do not normally remove this panel, as it provides
hazard protection to the parts inside.
●The system for transporting trays (discs) between the magazines and the mail slot, drive unit or printer using the carrier
is generically referred to as the "changer".
Right side panel
(when the door and panels are removed)
)
(
*
9
(
2
1
fi
¤
‹
›
⁄

8
Names and Functions of Parts
The internal layout of the magazine and the numbers assigned to the magazines, trays and discs are as shown below.
Magazine number ...... This is the number assigned to each of the 2 sets of magazines. The error message displayed
when a magazine is inserted incompletely refers to the magazine number.(AP.24)
Tray number............... This is the 2-digit number assigned to each of the 50 trays in each magazine. The combination of
a tray number and magazine number corresponds to a disc number. For example, disc number
070 can also be represented as the disc in tray number 20 of magazine number 2. In this way, the
disc can be located in the 20th slot from the bottom of magazine 2.
Disc number .............. This is the 3-digit number assigned serially to every disc in all magazines and trays, starting from
disc number 001 in tray 01 of magazine 1 up to disc number 100. The error messages usually refer
to the disc numbers. (AP.27)
Interior
Drive 4
Drive 3
Drive 2
Drive 1
Changer SCSI board
SCSI connectors
SCSI-F (OUT)
SCSI-E (IN)
SCSI-D (OUT)
SCSI-C (IN)
SCSI-B (OUT)
SCSI-A (IN)
Internal SCSI cable
2-3. Magazine numbers, tray numbers, disc numbers
2-4. Internal SCSI cable
The SCSI connections inside the main unit (the Changer) are explained below:
The SCSI board which controls the changer and the drive units are daisy-chain (connected by the internal SCSI cable). This
cable is approximately 1.2 m (4.9 ft)long.
2
50
41
40
31
30
21
20
11
10
01
Magazine No. : 2
Tray No. : 20
Disc No. : 070
Tray No.
2
1
050
001
100
051
Disc No.
Magazine No.
●Terminate the physical end of the SCSI bus. When using the terminator provided with one of the installed drives, read
the relevant drive instruction manual before termination.
●In order to improve the communications stability via the SCSI bus, it is recommended to use an external active terminator.

9
ENGLISH
3. SETUP
The standard setup procedure is shown below. Set up the equipment accordingly.
Start
Unpack and check that all the attachments are included.
Open the transport lock
Remove the transport protective materials (2 places.)
Load discs in the magazines *1
Completion
Proceed to the host computer setup
P.10
P.11
Install the drive units
P.21
Mount the optional carrier *2.
Execute the automatic drive detection mode.
P.22
Connect the power cord and cables
P.13
Initial setup of SCSI-ID No., etc.
P.12
P.18, 25
A large number of discs can be loaded quickly(bulk load).
*1
Please have your dealer or nearest JVC service center perform this task.
*2
Turn the power switch on.

10
3-1. Opening the transport lock
Setup
1. Open the door by inserting the key and turning it
counterclockwise (90°) to unlock the door.
2. Open the transport lock of the mail slot.
•Using a philips screwdriver, continue to turn the lock
counterclockwise until the lock is completely disen-
gaged and moves outwards.
3. Unlock the transport lock of the carrier.
•Continue to turn the screw counterclockwise to loosen
it until the metal device retaining it is disengaged and
moves outwards.
Proceed to the operation in the next page without closing the door.
Door opening/closing
key cylinder
Unlocked
Locked
•In the case of re-transporting, lock the transport lock as follows:
1) Remove all the discs and turn off the power.
2) Turn on the power while pressing the “1”of the 10-key pad and enter the PACKING mode.
3) Turn off the power as soon as the “END”display appears on the LCD screen.
4) Fix the transport lock as described in
2 and 3 above.
5) When using the MC-CF10U Optional Carrier, read "3-3. Removing the optional carrier transport lock screw" on
page 12 before continuing on.
6) Re-attach the protective transport materials. (aSee page 11.)
Note:
When using the MC-CF10U Optional Carrier, read "3-3. Re-
moving the optional carrier transport lock screw" on page
12 before continuing on.
Lock pin

11
ENGLISH
Setup
3-2. Removing the transport protective materials
After opening the transport lock, proceed to the following steps without closing the door.
1. Remove magazine No. 1.
(aSee “9-1. Ejecting/loading the magazines”on page 24.)
2. Pull out the protective material forwards.
3. Load magazine No. 1.
(aSee “9-1. Ejecting/loading the magazines”on page 24.)
4. Repeat the same operation for magazine No. 2.
TOP
TOP
Protective material
2
•In the case of re-transporting, it is necessary to remove all the discs and re-attach the protective transport materials
using the reverse procedure to the above. When this operation is required, please consult your dealer or nearest JVC-
authorized service agent.
•Although the MC-8100U is compatible with the optional MC-AP30U color disc Printer, it should be removed from the
system before transporting it. Otherwise, the printer and its outer panel may get damaged during transport.

12
3-3. Removing the optional carrier transport lock screw
Setup
When the MC-CF10U is installed, its special transport lock should be removed in addition to its being unlocked as detailed in "3-
1. Opening the transport lock" on page 10. Use the following procedure when unlocking the optional carrier transport lock.
1. Remove the transport lock screw
(for optional carrier).
2. Insert the removed screw into
the designated storage hole for
the transport lock screw.
•If the system is transported with the MC-CF10U Optional Carrier installed, refer to "3-1. Opening the transport lock",
execute the packing mode and clamp the above-mentioned transport lock screw.
3-4. Installing drives and settings SCSI-ID No., etc.
1. Installing drives
Install the drives ( aSee "7. DRIVE UNITS" on page 21).
2. Initial setting of SCSI-ID No., etc.
The default setting of the SCSI-ID No. of the MC-8100U is "0".
Set the SCSI-ID No. according to your system.
•To change the SCSI-ID No. of the MC-8100U aRead "8. SETUP OF SCSI ID NUMBER OF THE MAIN UNIT" on
page 23.
•To set the SCSI-ID Nos. and termination of drives aRead the instruction manuals of the installed drives.
•As the MC-8100U should be turned on to allow its SCSI-ID No. to be set, read "3-5. Connecting the power cord and
cables" on page 13 and connect the power cord before proceeding.
•When using an external active terminator, set the termination settings of the installed drives to OFF.

13
ENGLISH
3-5. Connecting the power cord and cables
Setup
CAUTION
Turn OFF the power of all equipment before starting connections.
Connecting the equipment while power is ON may lead to a malfunction.
•The allowable length for the SCSI cable inside the equipment is about 1.2 meters. In the case of SCSI-2 10
Mbytes/sec. sync operation, if the total length of the SCSI cabling including those cables outside the equipment
exceeds 3 meters, a malfunction may result. However, if the SCSI-2 5 Mbytes/sec. async mode is used the total
length of the SCSI cabling should be no more than 6 meters.
•Use a shielded SCSI cable with high-impedance specifications and be sure to attach the provided clamp filter to
the cable. Using other type of cable or using a cable without a clamp filter may cause radio wave interference and
a malfunction.
To SCSI-A
To SCSI port of
host computer
Attach the provided clamp filters.
To AC IN
To AC outlet
Attaching the clamp filters
Pull strongly.
Attach a clamp filter to the end of the cable.
Tighten until the tabs are
locked completely.
Push the clamp filter against the connector
and secure it by using the provided strap.
Cut any
surplus part.
Pull hard
Always use the power cord provided by JVC. The library system has been designed to conform to
“Insulation category Class 1”. In order to assure safety at all times, be sure to ground the system
before use. If other types of power cords other than the specified cord are used, they may overheat and
burn or cause a fire.
WARNING

14
Carrier
Drive 1
Idle Mail slot
Drive 2
Disc No.
Drive 3
Unconnected
Drive 4
[Pattern 1]
[Pattern 2]
CR : – – – MS : – – –
D1 : 0 3 6 D2 : 0 7 5
D3 : NC D4 : NC
SELECT SELECT
4. CONTROL PANEL OPERATIONS AND LCD DISPLAY
The key operation and LCD display system has three main operation and display modes as described below.
Normal display ..... This mode includes two patterns, one of which is displayed automatically when the equipment starts
up normally. The disc numbers in the drive units are displayed in real time.
Menu display ........ This mode allows you to start user operations such as SCSI ID No. checking and setting, internal
history display, access count display, disc loading by the library only, door opening, etc.
Event display ........ This mode overrides other modes in case of an event such as initialization after startup, mail slot
operations, setting up the door/panel opening mode or appearance of errors.
4-1. Normal display
Pattern 1 is displayed automatically when the startup has succeeded normally. The display changes every time the SELECT
key is pressed.
4-2. Menu display
Pressing the MODE key during normal display starts the menu display.
Select a menu by pressing the SELECT key and enter the selection by pressing the ENTER key.
1NORMAL DISPLAY
(aSee "4-1. Normal display" on this page.)
2ERROR DISPLAY
(aSee "10-4. Error history display" on page 29.)
3ID No. DISPLAY
(aSee "8-1. Display for checking the SCSI ID numbers" on page
23.)
4PANEL OPEN
(aSee the instruction manual of the optional MC-AP30U Color
Disc Printer.)
5DOOR OPEN MODE
(aSee "5. Door Opening/Closing" on page 17.)
6ID No. SET MODE
(aSee "8. Setup of SCSI ID number of the main unit" on page
23.)
7COUNT DISPLAY
(aSee "11. Access counts" on page 30.)
8IMPORT/EXPORT
(aSee "6-2. Import/export operation" on page 19.)
9DRIVE DISPLAY
(aSee "7.7. Drive type display" on page 22.)
0PRINTER MODE
(aDisplay only when the optional MC-AP30U Color Disc Printer
is installed.)
SELECT
SELECT
1. NORMA L D I SP L AY
2.ERROR DISPLAY
2.ERROR DISPLAY
3. ID No.DISPLAY
9.DRIVE DISPLAY
1 . NORMAL DI SPLAY
Cursor: Currently selected menu

15
ENGLISH
Control Panel Operations and LCD Display
4-3. Event display
1Power on
POWER ON
2During initialization
INITIALIZING
3Error occurrence (aSee “10-2. Error code list”on page 28.)
Displayed
alternately.
DISC=024
CODE =CU 04
ERROR OCCURRED !
4During door opening (aSee “5. Door Opening/Closing”on page 17.)
EXECUT I NG DOOR
OPEN PROCESS
THE DOOR
CAN BE OPENED
5When door is open (aSee “5. Door Opening/Closing”on page 17.)
Door closing
DOOR OR PANE L
IS OPEN
PUSH ENTER KEY
TO RESUME
6During mail slot operation (aSee “6. Mail Slot”on page 18.)
EXPORT DONE
PUSH LOAD KEY
When the MC-CF10U Optional Carrier is installed
INITIALIZING
FL I P CARR I ER

16
POWER ON
1. NORMAL DISPLAY
2. ERROR DISPLAY
Power On
INITIALIZING
Pattern 1
Normal display
Pattern 2
SELECT SELECT
MODE
SELECT
ENTER
Error display 1
3. ID No. DISPLAY
SELECT
SELECT
SELECT
SELECT
ENTER
4. PANEL OPEN MODE
ENTER
SCSI-ID display
Error display 2
Error display 8
SELECT
SELECT SELECT
DR1 :
DR2 :
DR4 :
SELECT
SELECT SELECT
SELECT
SELECT
5. DOOR OPEN MODE
SELECT
ENTER
PUSH SELECT
PUSH SELECT
EXECUTING ...
... CAN BE OPENED
SELECT
SELECT
6. ID No. SET MODE
7. COUNT DISPLAY
8. IMPORT/EXPORT
ENTER
ENTER
ENTER
ENTER
SELECT
9. DRIVE DISPLAY
10. PRINTER MODE
PUSH SELECT
PUSH SELECT
ID No. display
ID No. entry
SELECT
SELECT
SELECT
ENTER
Input ID No.
SELECT
SELECT
SELECT
7. DR4
SELECT
8. FL
SELECT
SELECT
SELECT
2. CR
1. TOTAL
PUSH SEL. KEY
PUSH SEL. KEY
Input the start
tray No.
Input the end
tray No.
Start accessing
ENTER
ENTER
*
1
*
2
Control Panel Operations and LCD Display
4-4. Display and operation sequence
The sequence of display and operation after turning the power on is as shown below.
•If the MODE, SELECT or ENTER key has not been pressed within 10 seconds, the current display will return to “Normal
display - Pattern 1”(except in a situation when an event is displayed or the Import/Export Tray numbers and SCSI-ID
numbers are being input).
*1. When the MC-CF10U Optional
Carrier is installed.
*2. When the optional MC-AP30U
Color Disc Printer is installed.