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280-7254-00

12 DISC CD CHANGER
Owner’s manual

Thank you for purchasing the CDC1255z/RDC1255z sys-
tem. The CDC1255z/RDC1255z is designed incorporat-
ing the latest digital technologies, while featuring a newly
developed CD mechanism to achieve excellent perform-
ance and good reliability.

Please read this owner’s manual entirely before proceed-
ing with installation.

1

FEATURES

2

PRECAUTIONS

1. This unit does not operate independently. The unit must be used with a source unit that has a cable connec-

tion for CeNET wire bound (sold separately).

2. When playing 3" (8cm) CDs, use an adapter that conforms to the recommended CD standards or the adapter

included with the  

  mark. Refer to the adapter instruction manual concerning operation and loading 3"

(8cm) CDs in the adapter.

3.

The pickup, the heart of a player, is built in deep behind the door. Do not leave this door open for extended
periods to prevent dust adhering to the pickup.

When the inside of the car is very cold and the player is used soon after switching on the heater, dew may
form on the disc or optical parts of the player and proper playback may not be possible. If dew forms on the
disc, wipe it with a soft cloth. If dew forms on the optical parts of  the player do not use the player for about
one hour and the condensation will disappear naturally to allow normal operation.

4. While the system is in play, do not plug or unplug the cables as this will cause damage.

5. Do not expose the magazine to direct sunlight, the car heater or other sources of strong heat. Replace the

CD magazine (CAA-122) with a new one if bent or otherwise damaged.

4

IDENTIFICATION OF PARTS

1

Installation selector levers

2

Eject button

Press the eject button for ejecting the magazine.

3

Sliding door

4

CeNET terminal for input and output
(13-pin)

5

Digital optical fiber output terminal

6

Address switch

When connecting an CD changer and MD changer
by CeNET, no more than 2 units can be connected.
When both of them are CD, the address switch needs
to be reset so that the address switch number is not
the same for each.

<How to change the address switch>

1. Rotate and change the switch using a fine-tipped

screwdriver.

2. Rotate the switch until it clicks into position.

6

Installation Procedure

1. Use the double seamed hexagonal bolts to fix the

lead clamp and installation bracket to the unit (on
both sides) in the desired direction fo installation.

Example

(Vertical Position)

9

TROUBLESHOOTING

Loss of power
Connection with
the source unit is
not recognized.

Magazine cannot
be loaded.

“No Disc” sign
appears when
searching for
discs.

Noise, skipping

Mechanism does
not function.

Symptom

Bad connection.

The length of the CeNET
cable wiring is more than
65.62 ft (20m).

Address switch num-
bers are the same.

Magazine inserted
wrongly.

A magazine is already
in the player.

Distorted magazine.

There is no CD in the
magazine.

The installation selec-
tor levers are set to dif-
ferent positions on both
sides.

The unit installation di-
rection and the instal-
lation selector lever po-
sitions do not match.

Disc bent or badly
damaged.

Disc is very dirty.

Mechanical error.

Cause

Check connections. Connect the cable again.

Rewire the connection so that the length of cable is less than 65.62 ft
(20m).

When the 2 CD changers are connected, set the address switch so
that they do not have the same address number. Refer to the “Exam-
ple of address switch setting” in the section titled “IDENTIFICATION
OF PARTS”.

Insert correctly.

Eject the magazine and insert the other.

Buy New Magazine CAA-122.

After inserting a CD into the magazine, reload into the CD changer.

Set the installation selector levers to the same position on both sides.

Set the unit installation direction and the installation selector lever
positions to match each other. When installed at an angle, change the
installation selector lever to a position (H, 45, V) not prone to noise or
sound loss.

Compare with another disc. If bad, discard the damaged disc.

Clean the disc.

1. Referring to section “INSTALLATION”, check the three angle of in-

stallation selector levers are properly set. If not, set them at the
proper position for the angle of installation.

2. Check whether the CD magazine can be ejected by pressing the

CD magazine eject button, then insert a new CD magazine.

Remedy

lf the same phenomenon still occurs after checking the above, or it is impossible to remove the magazine, please
consult your local dealer.

10

SPECIFICATONS

 • The unit may not operate when both CD

changers are set to the same address switch
number.

 • Never change the address switch during op-

eration. Doing so can cause malfunction or
breakdown. Do not change the address switch
forcibly, because this may also cause
malfunciton.

 • The CeNET cable wiring must be less than

65.62 ft (20m) in length.

 • Do not use address switch numbers “3” or “4”.

1

2 3

4

Not used.

Address switch

8

INSTALLATION

Adjustment of Installation Selector Lever on
the Right Side

The installation direction can be  adjusted by using
the sharp end of a screwdriver or ballpen to insert
into the round hole.

English

Frequency Response

: 5Hz~20kHz(

±

1dB)

Signal-to-Noise Ratio

: 105dB(1kHz)IHF•A

Wow and Flutter

: Below measurement limits

Power Supply

: DC14.4V (10.8~15.6V) negative ground

Current Consumption

: Less than 1A

Unit Weight

: 7.28lb. (3.3kg)

Dimensions

: 10.6"(Width) 

×

 3.9" (Height) 

×

 6.7"(Depth)

[268mm(W) 

×

 98mm(H) 

×

 170(D)mm]

Due to improvements, the design and these specifications may be modified without prior notice.

Caution

3

CAUTIONS ON HANDLING CDs

ONLY use the magazine included with the CDC1255z or RDC1255z. For additional magazines, pur-
chase Clarion Model CAA122. Do not attempt to insert different style magazine into the CD changer
even if they fit into the magazine opening. Inserting other manufacturers’ magazines or previous
Clarion 6 Pack style magazines into  the  CDC1255z or RDC1255z will cause damage to the mecha-
nism and void the warranty.

Caution

1

2 3

4

Address switch

● 

Setting example 2

  < Example of address switch setting>

CD changer

CD changer

1

2

Address switch
number 1

Address switch
number 2

 

Important

Be sure that the CD changer 
numbers are not the same.

Source unit

CD changer

MD changer

Address switch
number 1

Do not use address switch 
numbers “3’ or “4’.

Address switch
number 1

1

1

● 

Setting example 1

CeNET wire bound

CeNET wire bound

Source unit

 Important

 Important

Adjust the installation selector levers into the correct locations. Setting the locations incorrectly or
in varied positions will cause skipping.

Do not move the installation selector levers while the unit is in use. This will cause damage to the
mechanism and the disc.

Caution

5

CD MAGAZINE

Inserting the CD

1. Load the discs with the labels facing upwards, as

shown in the diagram.

2. When the discs are loaded into the magazine  the

disc lever will move upwards in the direction of
the arrow.

Disc Lever (White color)

Magazine

Label Side

One in each slot (6 pieces)

Notes:

• Use commercially sold adapters for 3” (8cm) CDs.

• Up to two CD adapters can be used in one maga-

zine. 3 or more adapters in a magazine may cause a
trouble in ejection.

• Some adapter may be transformed by heat.

Extracting the CD

Pull the disc lever in the direction of the arrow and a
part of the disc will emerge from the magazine. Hold
carefully the edge of the disc and pull it out.

Pull

Note:

When taking out the CD do not let your fingers touch
the signal side of the CD.

Handling

New discs may have some roughness around the
edge. The set may not work or the sound may skip
if such discs are used. Use a ball-point pen, etc.,
to remove roughness from the edge of the disc.

Ball-point pen

Roughness

Never stick labels on the surface of the compact
disc or mark the surface with a pencil or pen.

Never play a compact disc with any cellophane
tape or other glue on it or with peeling off marks.
If you try to play such a compact disc, you may
not be able to get it back out of the CD player or it
may damage the CD player.

Always handle the compact disc by the edges.
Never touch the surface.

This equipment has been tested and found to com-
ply with the limits for a Class B digital device, pursu-
ant to Part 15 of the FCC Rules.

These limits are designed to provide reasonable pro-
tection against harmful interference in a residential
installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may
cause harmful interference to radio communications.
However, there is no guarantee that interference will
not occur in a particular installation. If this equip-
ment does cause harmful interference to radio or
television reception, which can be determined by
turning the equipment off and on, the user is en-
couraged to consult the dealer or an experienced
radio/TV technician for help.

Use only compact discs bearing the 

 mark.

Do not play heart-shaped, octagonal, or other specially shaped compact discs.

Do not use commercially available CD protection
sheets or discs equipped with stabilizers, etc.
These may get caught in the internal mechanism
and damage the disc.

Storage

Do not expose compact discs to direct sunlight or
any heat source.

Do not expose compact discs to excess humidity
or dust.

Do not expose compact discs to direct heat from
heaters.

Cleaning

To remove fingermarks and dust, use a soft cloth
and wipe in a straight line from the center of the
compact disc to the circumference.

Do not use any solvents, such as commercially
available cleaners, anti-static spray or thinner to
clean compact discs.

After using special compact disc cleaner, let the
compact disc dry off well before playing it.

CDC1255z

8-TIMES OVERSAMPLING DIGITAL FILTER
/DUAL 1-BIT  DAC  
OPTICAL DIGITAL OUTPUT

DIGITAL AUDIO/12- DISC CD CHANGER

12-Disc Capability (Two 6-Pack

 

Magazines)

CeNET with Balanced Audio Line Transmission
and Dynamic Noise Canceling

8-Times Oversampling Digital Filter

Dual 1-Bit D/A Converters

Zero-Bit Detector

 Mute Circuit

3-Beam Laser System

Spring-Loaded Silicon Oil-Dampened Suspension
System

Eject Capability While lgnition-Off

120˚ Mounting Capability

Optical Digital Output

Dimensions: 10.6" (268mm)W 

×

 3.9"(98mm)H 

×

6.7" (170mm)D

V

H

45

Adjustment of Installation Selector Lever at the
base

The installation direction can be adjusted by insert-
ing the sharp end of a small screwdriver into the
square hole which can be seen from the adjustment
hole.

H

V

45

H: Horizontal

Set the position of the installation
selector levers on the right side
and at the base of the unit to “H”.

45

H

V

V

H

45

Base

Right Side

45

H

V

V

H

45

Base

Right Side

45

H

V

V

H

45

Base

Right Side

15

°

30

°

15

°

15

°

45

°

15

°

30

°

45: Slope

Set the position of the installation
selector levers on the right side
and at the base of the unit to “45”.

V: Vertical

Set the position of the installation
selector levers on the right side
and at the base of the unit to “V”.

Prior to Installation

1. Decide on the installation place and direction.

Before shipment from the factory, the levers are normally placed in the horizontal position.

2. Adjust the installation selector levers to the desired installation position.

USE OF CONTROLS, ADJUSTMENTS, OR PER-
FORMANCE OF PROCEDURES OTHER THAN
THOSE SPECIFIED HEREIN, MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.

THE COMPACT DISC PLAYER SHOULD NOT BE
ADJUSTED OR REPAIRED BY ANYONE EXCEPT
PROPERLY QUALIFIED SERVICE PERSONNEL.

CHANGES OR MODIFICATIONS NOT EX-
PRESSLY APPROVED BY THE MANUFACTURER
FOR COMPLIANCE COULD VOID THE USER’S
AUTHORITY TO OPERATE THE EQUIPMENT.

 INFORMATION FOR USERS:

.

CHANGES OR MODIFICATIONS TO THIS PROD-
UCT NOT APPROVED BY THE MANUFACTURER
WILL VOID THE WARRANTY  AND WILL VIOLATE
FCC APPROVAL.

Inserting the Magazine

1. Slide the sliding door to the right until it is com-

pletely latched on.

Sliding door

2. Load the magazine in the direction as shown in

the diagram. Push it in until it is locked into the
unit.

3. After the magazine has been loaded, close the

sliding door.

Extracting the Magazine

1. Open the sliding door and depress the eject but-

ton.

2. Remove the magazine when it has been ejected.

3. Close the sliding door.

Clarion Co.,Ltd.

All right Reserved. Copyright © 1998:Clarion Co., Ltd.

Printed in Japan  1998/10 (To.K)

PE-2289 / 2287B   280-7254-00

SYSTEM EXAMPLE

This unit is available for upgrade in various ways.

When you want to upgrade the system, make sure that the upgrade unit fits and wire it correctly.

Source unit

(Brack)

(Brack)

MD changer

CeNET
cable

Y-adapter

DPH7500z

CDC1255z/RDC1255z

(Gray)

(Gray)

RCA extension
cable

Ferrite
clamp

Digital optical fiber cable

7

 INSTALLATION OF CONNECTORS

Note:

Only the provided screws and brackets should be used during installation. Us-
ing screws other than those specified will cause damage.

When the CeNET cable is connected, it must be inserted fully and
securely. After connecting, fasten the cable using the cable holder or
cable clamp. After connecting, fasten the cables with cable holders,
etc.

When removing the digital optical fiber cable, rotate it to loosen it and
pull it gently while holding the slide cap (a gray color part on the source
unit).

Do not coil up the digital optical fiber cable with a radius of less than 1"
(3 cm). With a radius of less than 1", the performance of the cable will
be greatly impaired.

When installed in a glove box or console box, make sure that the source
unit cables or cords do not interfere with the opening or closing of the
slide door.

2. Use the wing nut to hold in place the installation

bracket with bolt to the installation bracket, which
is attached to the unit. Then affix the cushion rub-
ber.

(Vertical Position)

(Horizontal Position)

(Suspending Position)

3. Remove the floor carpet and decide on the place

to install. Adjust the installation bracket with bolts
to suit the place of installation.

The installation bracket with bolt may be bro-
ken off if it is bent many times at the perforated
line.

,,,

,,,

,,,

,

4. Remove the separator of the cushion rubber that

is attached to the installation bracket with bolt and
install accordingly.

5. Unfasten the wing nut and remove the unit.

6. Return the floor carpet to its original place. Use a

knife to cut into the carpet where the bolt can be
felt, and allow the bolt to protrude from the carpet.

7. Align the unit with the bolts and secure it with the

wing nuts.

,,,,,,,

,,,,,,,

,,,,,,,

,,,,,,,

,,,,,,,

For your convinience, identification marks are put
beside holes on the unit and the brackets. That is,
holes with the “RH/LH” marks are to be used for
horizontal, “RV/LV” for vertical installation and “RT/
LT” for suspending installation.

For horizontal or suspending installation, use

the attached installation screw to fix the lead
clamp.

6
5
4

3

2

1

12V       GROUND

MODEL

               Clarion Co.,Ltd. 

MADE IN JAPAN 

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDI-
TIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFER-
ENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE
RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE
UNDESIRED OPERATION. 

THIS PRODUCTION COMPLIES WITH DHHS RULES 21 CFR SUB-
CHAPTER J APPLICABLE AT DATE OF MANUFACTURE.

CLARION CO.,LTD.
50 KAMITODA, TODA-SHI, SAITAMA-KEN, JAPAN.

051  722  877

SERIAL No.

CLASS 1 

LASER PRODUCT

1.Be sure to use the screws, etc., included in the package tor installa-

tion.Using other screws could damage the set.

2.Set the selectors on both side panels to the

H

Position when 

installing the set horizontally, to the

V

Position when installing 

the set vetically.When installing at the angle of 45, set the selectors 
to the center click position.
The set may be damaged if the selectors are not set to the proper 
positions.

Screws
M5

8 W-SEMS

I S O

8

45

V

H

CAUTION

    

CeNET cable

Slide cap

Digtal optical

fiber cable

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