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2006G05-1
© 2006.07

AEP Model

UK Model

•

HCD-EH20DAB is the amplifier, CD player, tape deck
and tuner section in CMT-EH20DAB.

Model Name Using Similar Mechanism

NEW

CD Section

Base Unit Name

BU-K8BD83S2-WOD

Optical Pick-up Block Name

KSM-213CDP

TAPE Section

Model Name Using Similar Mechanism

HCD-EH10

Tape Transport Mechanism Type

H-21SB

DIN power output (rated): 4 + 4 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 10% 
THD)
Music power output (reference): 7 + 7 W
Inputs

AUDIO IN (stereo mini jack): Sensitivity 800 mV, impedance 47 kilohms

Outputs

PHONES (stereo mini jack): Accepts headphones with an impedance of 8 
ohms or more
SPEAKER: Accepts impedance of 4 ohms

System: Compact disc and digital audio system
Laser Diode Properties

Emission duration: continuous
Laser Output*: Less than 44.6

µ

W

* This output is the value measurement at a distance of 200mm from the 

 

objective lens surface on the Optical Pick-up Block with 7mm aperture.

Frequency response: 20 Hz – 20 kHz

Recording system: 4-track 2-channel, stereo

FM/DAB stereo tuner
Antenna: FM/DAB lead antenna

FM tuner section:

Tuning range: 87.5 – 108.0 MHz (50 kHz step)

DAB tuner section:

Frequency range
Band-III: 174.928 (5A) – 239.200 (13F) MHz
* For details, see “DAB frequency table” below.

180.064 MHz

5D

215.072 MHz

10D

181.936 MHz

6A

216.928 MHz

11A

183.648 MHz

6B

218.640 MHz

11B

185.360 MHz

6C

220.352 MHz

11C

187.072 MHz

6D

222.064 MHz

11D

188.928 MHz

7A

223.936 MHz

12A

190.640 MHz

7B

225.648 MHz

12B

192.352 MHz

7C

227.360 MHz

12C

194.064 MHz

7D

229.072 MHz

12D

195.936 MHz

8A

230.784 MHz

13A

197.648 MHz

8B

232.496 MHz

13B

199.360 MHz

8C

234.208 MHz

13C

201.072 MHz

8D

235.776 MHz

13D

202.928 MHz

9A

237.488 MHz

13E

204.640 MHz

9B

239.200 MHz

13F

206.352 MHz

9C

208.064 MHz

9D

* Frequencies are displayed to two decimal places on this system.

Power requirements: AC 230 V, 50/60 Hz
Power consumption: 25 W

1.0 W (in Power off )

Dimensions (w/h/d) (excl. speakers): Approx. 158 

×

 241.5 

×

 233 mm

Mass (excl. speakers): Approx. 2.4 kg

Design and specications are subject to change without notice.

174.928 MHz

5A

209.936 MHz

10A

176.640 MHz

5B

211.648 MHz

10B

178.352 MHz

5C

213.360 MHz

10C

2

•

Never reuse a disconnected chip component.

•

Notice that the minus side of a tantalum capacitor may be

damaged by heat.

•

Keep the temperature of the soldering iron around 270 ˚C

during repairing.

•

Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

•

Be careful not to apply force on the conductor when soldering

or unsoldering.

...............................................

3

...................................................................

4

3-1.

Disassembly Flow ...........................................................

6

3-2.

Rear Cabinet Section .......................................................

6

3-3.

Front Cabinet Section, Top Cabinet Section and
MAIN Board ....................................................................

7

3-4.

Mechanical Deck (H-21SB) ............................................

7

3-5.

Base Unit Section (BU-K8BD83S2-WOD) ....................

8

3-6.

Optical Pick-up Block (KSM-213CDP) ..........................

8

..............................................................

9

....................... 10

......................... 10

7-1.

Block Diagram
– CD SERVO, DAB TUNER Section – .......................... 13

7-2.

Block Diagram – MAIN Section – .................................. 14

7-3.

Printed Wiring Board – CD Board – ............................... 16

7-4.

Schematic Diagram – CD Board – .................................. 17

7-5.

Printed Wiring Boards – MAIN Section – ...................... 19

7-6.

Schematic Diagram – MAIN Section (1/2) – .................. 20

7-7.

Schematic Diagram – MAIN Section (2/2) – .................. 21

7-8.

Printed Wiring Boards – DAB Section – ......................... 22

7-9.

Schematic Diagram – DAB Section – ............................. 23

7-10. Printed Wiring Board – PANEL Board – ........................ 24
7-11. Schematic Diagram – PANEL Board – ........................... 25

8-1.

Overall Section ................................................................ 32

8-2.

Front Cabinet Section ...................................................... 33

8-3.

Top Cabinet Section ........................................................ 34

8-4.

Base Unit Section (BU-K8BD83S2-WOD) .................... 35

................................ 36

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

 0

0

The following caution label is located inside the unit.

CLASS 1 LASER PRODUCT

LUOKAN 1 LASER LAITE

KLASS 1 LASER APPARA

T

This appliance is classified
as a CLASS 1 LASER
product.

This label is located on the
rear exterior.

3

Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.

•

Unleaded solder melts at a temperature about 40 ˚C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

•

Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

•

Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

SW750

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the SW750. (push switch type)
The following checking method for the laser diode is operable.

•

1. Open the upper lid.
2. Push the SW750 as shown in Fig.1.

Do not push the detection lever strongly, or it may be bent or damaged.

3. Press the

CD 

u

button.

4. Check the object lens for confirming normal emission of the

laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.

In this operation, the object lens will move up and down 2

times along with inward motion for the focus search.

4

This section is extracted from
instruction manual.

Open the tape 
section lid.

Slide and remove the battery compartment lid qj, and 
insert the two R6 (size AA) batteries (not supplied), 
side first, matching the polarities shown below.

Notes on using the remote
• With normal use, the batteries should last for about six months.
• Do not mix an old battery with a new one or mix different types of
   batteries.
• If you do not use the remote for a long period of time, remove the 

batteries to avoid damage from battery leakage and corrosion.

Turn on the system.

Press 

 (power) 

.

Select the clock set mode.

Press CLOCK/TIMER SET 

 on the remote. If the 

current mode appears on the display, press 

/

 on the remote repeatedly to select “CLOCK,” and 

then press ENTER 

 on the remote.

Set the time.

Press 

/

 on the remote repeatedly to set 

the hour, and then press ENTER 

 on the remote. 

Use the same procedure to set the minutes.
The clock settings are lost when you disconnect the
power cord or if a power failure occurs.

you purchase the system, DAB Automatic Scan starts 

When you turn on the system for the first time after 

automatically and creates a list of available services.
If you want to run the DAB Automatic Scan again, 
perform the procedure below.

Press DAB AUTO SCAN 

5

 on the unit.

“DAB SCAN” and “PUSH DAB” appear.

Press DAB 

5

.

by advancing asterisks. Depending on the DAB 

Scanning begins. The scanning progress is indicated

services available in your area, scanning may take a 
few minutes.

When scanning is complete, a list of available services 
is created.

Notes
• If your country or region does not support DAB broadcast, “NO 

SERV” appears.

• Do not press any button on the unit or the remote during DAB 

• This procedure clears all previously stored presets. 

• This tuner does not support data services. 

Automatic Scan. Scanning is interrupted and service list may not be 
created properly. In this case, run the DAB Automatic Scan again.

• If you move to another area, repeat this procedure to store the 

stations for your new area.

off to preserve your own DAB settings.

• Before unplugging the DAB antenna, make sure the system is turned 

Press the following buttons (or press FUNCTION 
repeatedly).

CD

CD

 on the remote.

Tuner

TUNER/BAND 

.

DAB

DAB 5.

Tape

TAPE 

 on the remote.

Component* (connected 
using an audio cord)

FUNCTION 
repeatedly until “AUDIO 
IN” appears.

* If the component has the AVLS (Automatic Volume Limiter System) 

sound from the speakers.

or BASS BOST function, turn off the function to avoid distorted

To adjust the volume

Press VOLUME +/– on the remote (or turn the 
VOLUME control on the unit) 

.

Generate a more dynamic 
sound (Dynamic Sound 
Generator X-tra)

Set the sound effect

DSGX

 on the unit.

EQ qk on the remote.

Select the CD function.

Press CD on the remote (or FUNCTION repeatedly) 

.

Place a disc.

Press  PUSH OPEN/CLOSE on the unit, and place a 
disc with the label side up on the CD compartment.  
To close the CD compartment, press 

PUSH OPEN/

CLOSE on the unit.

PUSH OPEN/CLOSE

Start playback.

Press 

 (play) 

 on the remote (or CD/

 (play/

pause) 

 on the unit).

Pause playback

 (pause) 

 on the remote (or 

CD/

 (play/pause) 

 on the 

unit). To resume play, press it 
again.

Stop playback

 (stop) 

.

Select a folder on an 
MP3 disc

Select s track or file

 +/– qh  on the remote.

 (go back/go forward) 

on the remote (

/

 on the 

unit) 

.

Find a point in a 
track or file

Hold down 

/

 (rewind/

fast forward) 

 during playback, 

and release it at the desired point.

Select Repeat Play

REPEAT 

 on the remote 

repeatedly until “REP” appears.

Press PLAY MODE 

 on the remote repeatedly while 

the player is stopped. You can select normal play (“
for all MP3 files in the folder on the disc), shuffle play

”

(“SHUF” or “

 SHUF*”), or program play (“PGM”).

*When playing a CD-DA disc, 

 (SHUF) Play performs the same 

operation as SHUF Play.

Notes on Repeat Play
• All tracks or files on a dis are played repearedly up to five times.

• 

“REP1” 

indicates that a single track or file is repeated until you stop

   it.

– folders is 150 (including the root folder).
– MP3 files is 255.
– MP3 files and folders that can be contained on a signal disc is 256.
– folder levels (the tree structure of files) ia eight.

• Compatibility with all P3 encodomg/writing software, recording

device, and recording media cannot be guaranteed. Incompatible 
MP3 discs may produce noise or interrupted audio or may not play 
at all.

Notes on playing multisession discs
• If the disc begins with a CD-DA (or MP3) session, it is recognized 

as a CD-DA (or MP3) disc, and playback continues until another 
session is encountered.

• A disc with a mixed CD format is recognized as a CD-DA (audio) 

disc.

Before you can receive DAB, you must complete the 
DAB Automatic Scan procedure (see “Before using the 
system”).

Select “DAB” or “FM.”

Press TUNER/BAND 

 repeatedly. You can also 

select DAB directly by pressing DAB 

.

Select the tuning mode.

Press TUNING MODE 

 on the remote repeatedly 

until “AUTO” appears. 

Tune in the desired station.

Press +/– on the remote (or TUNING + or – on the 
unit) 

. Scanning stops automatically when a station  

is tuned in, and then “TUNED” (DAB only) and 
“STEREO” (for stereo programs) appear. When you 
tune in a DAB station or an FM station that provides 
RDS services, the service name or station name 
appears on the display.

Tip

Press   (stop) 

 to stop automatic scanning (FM band only).

If the scanning does not stop, press TUNING MODE 
on the remote repeatedly until “MANUAL” appears, and 
then press +/– on the remote (or TUNING + or – on the 
unit) 

 repeatedly to tune in the desired station.

Notes on listening to DAB stations
• When tuning in a DAB station, it may take a few seconds before you 

hear any sound.

• Primary service is automatically received when secondary service 

ends.

Use buttons on the unit for the operation.

Select a tape function.

Press FUNCTION repeatedly (or TAPE on the 
remote) 

.

Insert a tape.

Press 

 (stop/eject) 

 on the unit, and insert the 

tape into the cassette holder. Make sure there is no 
slack in the tape to avoid damaging the tape or the 
tape deck.

3

Start playback.

Press 

 (play) 

 on the unit. 

Pause playback

 (pause) 

 on the unit. To 

resume play, press it again.

Stop playback

 (stop/eject) 

 on the unit.

Rewind or fast 
forward*

/

 on the unit.

* Be sure to press 

 (stop/eject) 

 on the unit after the tape has

been wound or rewound to the end.

Do not turn off the system during playback or recording.

Information on 
the display

1)

DISPLAY 

 repeatedly when the 

system is on.

Display mode 
(Clock)

DISPLAY   when the system is 

. The clock is displayed for eight

2)

seconds.

off

1)

For example, you can view:

The STANDBY indicator lights up when the system is turned off.

name (during normal play), or the total play time (while the player 
is stopped)

– DAB station information such as the service name, channel label,  

– CD/MP3 disc information such as the track or file number, folder  

DLS (Dynamic Label Segment), or ensemble label

2)

– total playing time for a disc with MP3 files.
– elapsed playing time and remaining time of an MP3 file encoded
   using a VBR (variable bit rate) when the file is played or is shifted

with fast forward or fast reverse.

– folder and file names that do not follow either the ISO9660 Level 1

or 2 standard.

– ID3 tag information for MP3 files when ID3 version 1 and version

2 tags are used. 

– up to 15 characters of ID3 tag information using uppercase letters 

(A to Z), numbers (0 to 9), and symbols (" $ % ’ ( ) 

*

 + , – . / < = > 

@ [ \ ] _ ` { | } ! ? ^).

– up to 8 characters of service name, up to 128 characters of DLS 

(Dynamic Label Segment) and up to 16 characters of ensemble 
label using uppercase letters (A to Z), numbers (0 to 9), and 
symbols (" $ % ’ ( ) 

*

 + , – . / < = > @ [ \ ] _ ` { | } ! ? ^).

Connect headphones to the PHONES jack 

 on the 

unit.

Connect additional audio source component to the 
AUDIO IN jack 

 on the unit using an audio analog 

cord (not supplied). Turn down the volume on the 
system, and then select the AUDIO IN function.

1 2 3

45

6

7

8

qs

qa

q;

9

1

qd

qf

5

7

8

qg

3

qh

4

qj

qh

qk

ql

9

7

3

6

w;

• Do not save other types of tracks or files or unnecessary folders on a
  disc that has MP3 files. 
• Folders that have no MP3 files are skipped. 

• The maximum number of:. 

• MP3 files are played back in the order that they are recorded onto
 the disc. 
• The system can only play MP3 files that have file extension of
  “MP3”. 
• If there are files on the disc that have  the “MP3” files extension, 
  but that are no MP3 files, the unit may produce noise or may 
  malfunction. 

• The following are not displayd correctly; 

• The following are displayed;