View Sony CMT-EH45DAB / HCD-EH45DAB Service Manual online
SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
HCD-EH45DAB
SPECIFICATIONS
COMPACT DISC DECK RECEIVER
9-889-088-01
2008D05-1
©
2008.04
UK Model
Ver. 1.0 2008.04
• HCD-EH45DAB is the amplifi er, CD player, tape
deck and tuner section in CMT-EH45DAB.
CD
Section
Section
Model Name Using Similar Mechanism
HCD-EH15
Base Unit Name
BU-K8BD90-WOD
Optical Pick-up Name
KSM-213CDP
Tape
Section
Section
Model Name Using Similar Mechanism
HCD-EH15
Tape Transport Mechanism Type
MF-EH10
Main unit
Amplifier section
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
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
8 ohms or more
SPEAKER: Accepts impedance of 4 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* This output is the value measurement at a distance of 200 mm from the
Laser Output*: Less than 44.6μW
* This output is the value measurement at a distance of 200 mm from the
objective lens surface on the Optical Pick-up Block with 7 mm aperture.
Frequency response: 20 Hz
20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Dynamic range: More than 90 dB
Tape deck section
Recording system: 4-track 2-channel, stereo
Tuner section
FM/DAB stereo tuner
Antenna:
Antenna:
FM/DAB lead antenna
FM tuner section:
Tuning range: 87.5 108.0 MHz (50 kHz step)
Intermediate frequency: 10.7 MHz
Intermediate frequency: 10.7 MHz
DAB tuner section:
Frequency range
Band-III: 174.928 (5A) 239.200 (13F) MHz
* For details, see “DAB frequency table” below.
Band-III: 174.928 (5A) 239.200 (13F) MHz
* For details, see “DAB frequency table” below.
DAB frequency table (Band-III)
Frequency
Label
Frequency
Label
174.928 MHz
5A
209.936 MHz
10A
176.640 MHz
5B
211.648 MHz
10B
178.352 MHz
5C
213.360 MHz
10C
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.
General
Power requirements: AC 230 V, 50/60 Hz
Power consumption: 25 W
Dimensions (w/h/d) (excl. speakers): Approx. 155 × 241 × 224.6 mm
Mass (excl. speakers): Approx. 2.2 kg
Power consumption: 25 W
Dimensions (w/h/d) (excl. speakers): Approx. 155 × 241 × 224.6 mm
Mass (excl. speakers): Approx. 2.2 kg
Design and specifications are subject to change without notice.
HCD-EH45DAB
2
1.
SERVICING NOTES
.............................................
3
2. GENERAL
..................................................................
4
3. DISASSEMBLY
3-1. Disassembly
Flow
........................................................... 6
3-2. Rear Cabinet Block ......................................................... 6
3-3. Front Cabinet Block, Top Cabinet Block,
MAIN
3-3. Front Cabinet Block, Top Cabinet Block,
MAIN
Board
...................................................................
7
3-4. MF-EH10 (Tape Mechanism Deck), Cassette Lid .......... 7
3-5. Base Unit Block (BU-K8BD90-WOD) .......................... 8
3-6. Optical Pick-up Block (KSM-213CDP) ......................... 8
3-5. Base Unit Block (BU-K8BD90-WOD) .......................... 8
3-6. Optical Pick-up Block (KSM-213CDP) ......................... 8
4.
TEST MODE
............................................................
9
5. MECHANICAL
ADJUSTMENTS
...................... 10
6. ELECTRICAL
ADJUSTMENTS
........................ 10
7. DIAGRAMS
7-1. Printed Wiring Board - CD Board - ................................ 14
7-2. Schematic Diagram - CD Board - ................................... 15
7-3. Printed Wiring Board - PANEL Board - ......................... 16
7-4. Schematic Diagram - PANEL Board - ............................ 17
7-5. Schematic Diagram - MAIN Section (1/2) - ................... 18
7-6. Schematic Diagram - MAIN Section (2/2) - ................... 19
7-7. Printed Wiring Boards - MAIN Section - ....................... 20
7-2. Schematic Diagram - CD Board - ................................... 15
7-3. Printed Wiring Board - PANEL Board - ......................... 16
7-4. Schematic Diagram - PANEL Board - ............................ 17
7-5. Schematic Diagram - MAIN Section (1/2) - ................... 18
7-6. Schematic Diagram - MAIN Section (2/2) - ................... 19
7-7. Printed Wiring Boards - MAIN Section - ....................... 20
8.
EXPLODED VIEWS
8-1. Overall
Section
............................................................... 26
8-2. Front Cabinet Section ..................................................... 27
8-3. Top Cabinet Section ........................................................ 28
8-4. Base Unit Section (BU-K8BD90-WOD) ........................ 29
8-3. Top Cabinet Section ........................................................ 28
8-4. Base Unit Section (BU-K8BD90-WOD) ........................ 29
9.
ELECTRICAL PARTS LIST
.............................. 30
TABLE OF CONTENTS
Notes on chip component replacement
•
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
This appliance is classified
as a CLASS 1 LASER
product. This marking
is located on the rear
exterior.
as a CLASS 1 LASER
product. This marking
is located on the rear
exterior.
CAUTION
Use of controls or adjustments or performance of procedures other than
those specifi ed herein may result in hazardous radiation exposure.
Use of controls or adjustments or performance of procedures other than
those specifi ed herein may result in hazardous radiation exposure.
HCD-EH45DAB
3
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
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
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)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
• 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.
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
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 viscous (sticky, less prone to fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
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.
also be added to ordinary solder.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostat-
ic 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 fl exible board is easily damaged and should be handled with
care.
ic 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 fl exible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
The laser beam on this model is concentrated so as to be focused
on the disc refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
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.
• Method
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the SW750 as shown in Fig.1.
CHECK
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.
• Method
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the SW750 as shown in Fig.1.
Note: Do not push the detection lever strongly, or it may be bent or
damaged.
3. Check the object lens for confi rming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
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.
SW750
Fig.1 Method to push the SW750
HCD-EH45DAB
4
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Basic Operations
Open the tape
section lid.
section lid.
This manual mainly explains operations using the
remote, but the same operations can also be performed
using the buttons on the unit having the same or similar
names.
remote, but the same operations can also be performed
using the buttons on the unit having the same or similar
names.
Before using the system
To use the remote
Slide and remove the battery compartment lid
Slide and remove the battery compartment lid
, and
insert the two R6 (size AA) batteries (not supplied),
side first, matching the polarities shown below.
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.
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.
To set the clock
Use buttons on the remote to set the clock.
Use buttons on the remote to set the clock.
1
Turn on the system.
Press
Press
(on/standby)
.
2
Select the clock set mode.
Press CLOCK/TIMER SET
Press CLOCK/TIMER SET
. If the current mode
appears, press
/
repeatedly to select
“CLOCK,” and then press ENTER
.
3
Set the time.
Press
Press
/
repeatedly to set the hour, and
then press ENTER
. 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.
The clock settings are lost when you disconnect the
power cord or if a power failure occurs.
To run the DAB Automatic Scan
When you turn on the system for the first time after
you purchase the system, DAB Automatic Scan starts
automatically and creates a list of available services. If
you want to run the DAB Automatic Scan again, perform
the procedure below.
When you turn on the system for the first time after
you purchase the system, DAB Automatic Scan starts
automatically and creates a list of available services. If
you want to run the DAB Automatic Scan again, perform
the procedure below.
1
Press DAB AUTO SCAN
on the unit.
“DAB SCAN” and “PUSH DAB” appear.
2
Press DAB
on the unit.
Scanning begins. The scanning progress is indicated
by advancing asterisks. Depending on the DAB
services available in your area, scanning may take a
few minutes.
by advancing asterisks. Depending on the DAB
services available in your area, scanning may take a
few minutes.
When scanning is complete, a list of available services
is created.
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
Automatic Scan. If scanning is interrupted, run the DAB Automatic
Scan again.
If you move to another area, repeat this procedure to store the
stations for your new area.
This procedure clears all previously stored presets.
Before unplugging the DAB antenna, make sure the system is turned
off to preserve your own DAB settings.
This tuner does not support data services.
“NO SERV” appears.
Do not press any button on the unit or the remote during DAB
Automatic Scan. If scanning is interrupted, run the DAB Automatic
Scan again.
If you move to another area, repeat this procedure to store the
stations for your new area.
This procedure clears all previously stored presets.
Before unplugging the DAB antenna, make sure the system is turned
off to preserve your own DAB settings.
This tuner does not support data services.
Selecting a music source
Press the following buttons (or press FUNCTION
repeatedly).
repeatedly).
To select
Press
CD
CD
.
Tuner
TUNER/BAND
.
DAB
DAB
on the unit.
Tape
FUNCTION
repeatedly until “TAPE”
appears.
repeatedly until “TAPE”
appears.
Component* (connected
using an audio cord)
using an audio cord)
AUDIO IN
.
* If the component has the AVLS (Automatic Volume Limiter System)
or BASS BOOST function, turn off the function to avoid distorted
sound from the speakers.
sound from the speakers.
Adjusting the sound
To adjust the volume
Press VOLUME +/ (or turn the VOLUME control on
the unit)
Press VOLUME +/ (or turn the VOLUME control on
the unit)
.
To add a sound effect
To
Press
Generate a more dynamic
sound (Dynamic Sound
Generator X-tra)
sound (Dynamic Sound
Generator X-tra)
DSGX
on the unit.
Set the sound effect
EQ
.
Playing a CD/MP3 disc
1
Select the CD function.
Press CD (or FUNCTION repeatedly)
Press CD (or FUNCTION repeatedly)
.
2
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
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
3
Start playback.
Press
Press
(play) (or CD/
(play/pause) on the unit)
.
To
Press
Pause playback
(pause) (or CD/
on the
unit)
. To resume play, press
it again.
Stop playback
(stop)
.
Select a folder on an
MP3 disc
MP3 disc
+/ (select folder)
.
Select a track or file
/
(go back/go forward)
(
/
on the unit)
.
Find a point in a
track or file
track or file
Hold down
/
(rewind/
fast forward)
during playback,
and release it at the desired point.
Select Repeat Play
REPEAT
repeatedly until
“REP” or “REP1” appears.
To change the play mode
Press PLAY MODE
Press PLAY MODE
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 disc are played repeatedly up to five times.
“REP1” indicates that a single track or file is repeated until you stop
it.
Notes on playing MP3 discs
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.
MP3 files are played back in the order that they are recorded onto
the disc.
The system can only play MP3 files that have a file extension of
“.MP3”.
If there are files on the disc that have the “.MP3” file extension,
but that are not MP3 files, the unit may produce noise or may
malfunction.
The maximum number of:
disc that has MP3 files.
Folders that have no MP3 files are skipped.
MP3 files are played back in the order that they are recorded onto
the disc.
The system can only play MP3 files that have a file extension of
“.MP3”.
If there are files on the disc that have the “.MP3” file extension,
but that are not MP3 files, the unit may produce noise or may
malfunction.
The maximum number of:
folders is 150 (including the root folder).
MP3 files is 255.
MP3 files and folders that can be contained on a single disc is 256.
folder levels (the tree structure of files) is 8.
MP3 files is 255.
MP3 files and folders that can be contained on a single disc is 256.
folder levels (the tree structure of files) is 8.
Compatibility with all MP3 encoding/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.
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.
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.
Listening to the radio
Before you can receive DAB, you must complete the
DAB Automatic Scan procedure (see “Before using the
system”).
DAB Automatic Scan procedure (see “Before using the
system”).
1
Select “DAB” or “FM.”
Press TUNER/BAND
Press TUNER/BAND
repeatedly. You can also
select DAB directly by pressing DAB
on the unit.
2
Select the tuning mode.
Press TUNING MODE
Press TUNING MODE
repeatedly until “AUTO”
appears.
3
Tune in the desired station.
Press +/ (or TUNING +/
Press +/ (or TUNING +/
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.
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.
Tip
Press (stop)
to stop automatic scanning (FM band only).
To tune in a station with a weak signal
(FM band only)
Press TUNING MODE
Press TUNING MODE
repeatedly until “MANUAL”
appears, and then press +/ (or TUNING +/
on the
unit)
repeatedly to tune in the desired station.
To reduce static noise on a weak FM stereo
station
Press FM MODE
Press FM MODE
repeatedly until “MONO” appears
to turn off stereo reception.
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.
hear any sound.
Primary service is automatically received when secondary service
ends.
Playing a tape
Use buttons on the unit to play a tape.
1
Select the tape function.
Press FUNCTION
Press FUNCTION
repeatedly.
2
Insert a tape.
Press
Press
(stop/eject)
, 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.
to avoid damaging the tape or the tape deck.
3
Start playback.
Press
Press
(play)
.
To
Press
Pause playback
(pause)
. To resume play, press
it again.
Stop playback
(stop/eject)
.
Rewind or fast
forward*
forward*
/
(rewind/fast forward)
.
* Be sure to press
(stop/eject)
after the tape has been wound
or rewound to the end.
Note
Do not turn off the system during playback or recording.
Changing the display
To change
Press
Information on
the display
the display
1)
DISPLAY
repeatedly when the
system is on.
Display mode
(Clock)
(Clock)
DISPLAY
when the system is
off
2)
. The clock is displayed for eight
seconds.
1)
For example, you can view:
CD/MP3 disc information such as the track or file number, folder
name during normal play, or the total play time while the player is
stopped.
DAB station information such as the service name, channel label,
DLS (Dynamic Label Segment), or ensemble label.
name during normal play, or the total play time while the player is
stopped.
DAB station information such as the service name, channel label,
DLS (Dynamic Label Segment), or ensemble label.
2)
The STANDBY indicator
lights up when the system is turned off.
Notes on the display information
The following are not displayed;
total playing time for a CD-DA disc depending on the play mode.
total playing time for an MP3 disc.
remaining playing time for a track and an MP3 file.
total playing time for an MP3 disc.
remaining playing time for a track and an MP3 file.
The following are not displayed correctly;
elapsed playing time of an MP3 file encoded using VBR (variable
bit rate).
folder and file names that do not follow either ISO9660 Level 1,
Level 2 or Joliet in the expansion format.
bit rate).
folder and file names that do not follow either ISO9660 Level 1,
Level 2 or Joliet in the expansion format.
The following are displayed;
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 (" $ % ’ ( ) * + , – . / < = > @ [ \ ] _ ` { | } ! ? ^).
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 (" $ % ’ ( ) * + , – . / < = > @ [ \ ] _ ` { | } ! ? ^).
Using optional audio components
To connect an optional headphones
Connect headphones to the PHONES jack
Connect headphones to the PHONES jack
on the
unit.
To connect an optional component
Connect additional audio source component to the
AUDIO IN jack
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.
system, and then select the AUDIO IN function.
