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Model
CMT-DH3 CMT-DH5BT CMT-DH7BT HCD-DH3 HCD-DH5BT HCD-DH7BT
Pages
111
Size
8.57 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-dh3-cmt-dh5bt-cmt-dh7bt-hcd-dh3-hcd-dh5bt-hcd-.pdf
Date

Sony CMT-DH3 / CMT-DH5BT / CMT-DH7BT / HCD-DH3 / HCD-DH5BT / HCD-DH7BT Service Manual ▷ View online

5
HCD-DH3/DH5BT/DH7BT
SECTION  1
SERVICING  NOTES
MODEL  IDENTIFICATION
– Back Panel –
MODEL
PART No.
DH3: Singapore
2-892-818-0[]
DH3: Australian
2-892-818-1[]
DH3: Korean
2-892-818-3[]
DH3: Thai
2-892-818-6[]
DH3: Chinese
2-892-818-7[]
DH3: AEP
2-892-818-8[]
DH3: Russian
2-892-818-9[]
DH7BT
2-892-844-0[]
DH5BT: Canadian
2-892-844-1[]
DH5BT: AEP
2-892-844-2[]
DH5BT: Singapore
2-892-844-3[]
DH5BT: Australian
2-892-844-4[]
DH5BT: Korean
2-892-844-6[]
DH5BT: Taiwan
2-892-844-8[]
DH5BT: Thai
2-892-844-9[]
DH5BT: Russian
2-892-845-0[]
DH5BT: Chinese
2-892-845-1[]
DH3: Taiwan
2-892-845-2[]
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
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.
NOTES  ON  LASER  DIODE  EMISSION  CHECK
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.
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
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
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.
RELEASING  THE  DISC  ANTITHEFT
The disc lock function for the antitheft of an demonstration disc in
the store is equipped.
Releasing Procedure :
1. Press the  
I
/1
  button to turn on the system.
2. Press the  
DVD
 
 button to select the “DVD”.
3. While pressing the
x
button, press the  
Z
 
button until
“UNLOCKED” displayed on the fluorescent indicator tube
(around 5 seconds).
Note:
When “LOCKED” is displayed, the disc lock is not released by
turning power on/off with the
I/
1
button.
NOTES  ON  REPLACEMENT  OF  THE  DMB15  BOARD
New part of EEPROM (IC103) on the DMB15 board cannot be
used. Therefore, if the mounted DMB15 board is replaced, exchange
new EEPROM with that used before the replacement.
PART No.
Ver. 1.4
6
HCD-DH3/DH5BT/DH7BT
Playable discs
Type
Characteristics
Icon used in 
this manual
Logo
DVD VIDEO
DVD VIDEO
DVD-R
*
/-RW
*
/+R/+RW
in DVD VIDEO format
*
also in video mode
VR mode
DVD-R/-RW
in VR (Video Recording) mode
VIDEO CD
VIDEO CD
Super VCD
*
CD-ROM
*
/-R
*
/-RW
*
*
in VIDEO CD or Super VCD format
CD
AUDIO CD
*
CD-R
*
/-RW
*
*
in AUDIO CD format
DATA CD
CD-ROM/-R/-RW
in DATA CD format, containing 
MP3 audio tracks
1)
, JPEG image 
2)
3)
, and 
conforming to ISO 9660
4)
 Level 
1 or Level 2, or Joliet (expansion 
format).
Type
Characteristics
Icon used in 
this manual
Logo
DATA DVD
DVD-ROM/-R/-RW/+R/+RW
in DATA DVD format containing 
MP3 audio tracks
1)
, JPEG image 
2)
3)
, and 
conforming to UDF (Universal Disk 
Format).
1)
data. MP3 audio tracks must be in MPEG 1 Audio Layer 3 format.
2)
File System”: Image standards for digital cameras regulated by Japan Electronics and Information 
Technology Industries Association (JEITA)).
3)
4)
Standardization).
“DVD+RW,” “DVD-RW,” “DVD+R,” “DVD VIDEO,” and the “CD” logos are trademarks.
(Except US and Canadian models)
7
HCD-DH3/DH5BT/DH7BT
Discs that cannot be played
CD-ROMs recorded in PHOTO CD 
format
DATA CDs recorded in MP3 PRO 
format
Data part of CD-Extras
1)
Data part of Mixed CDs
2)
Super Audio CDs
DVD Audio discs
DVD-RAMs
code.
A disc that has a non-standard shape 
(e.g., heart, square, star).
A disc that has the adhesive cellophane 
1)
(AUDIO CD data) on the tracks in session 1 
and data on the tracks in session 2.
2)
on the second and subsequent tracks of a 
session.
Region code of DVD VIDEOs you 
can play back on this system
Your system has a region code printed 
on the back of the unit and will only 
play back DVD VIDEOs labeled with 
identical region code.
DVD VIDEOs labeled 
 will also be 
played back on this system.
If you try to play back any other region 
code DVD VIDEO, the message 
“Playback prohibited by area limitations.” 
will appear on the TV screen. Depending 
on the DVD VIDEO, no region code 
indication may be labeled even though 
playing the DVD VIDEO is prohibited by 
area restrictions.
Note on DualDiscs
ADualDisc is a two sided disc product  
which mates DVD recorded material on 
one side with digital audio material on 
the other side. However, since the audio 
material side does not conform to the 
Compact Disc (CD) standard, playback 
on this product is not guaranteed.




Notes on CD-R/-RW and 
DVD-R/-RW/+R/+RW
In some cases, CD-Rs/-RWs and 
DVD-Rs/-RWs/+Rs/+RWs cannot be 
played back on this system due to the 
recording quality or physical condition 
of the disc, or the characteristics of 
the recording device and authoring 
back if it has not been correctly 
the operation instructions for the 
recording device.
Note that some playback functions 
may not work with some DVD+Rs/
+RWs, even if they have been correctly 
normal playback.
A disc created in Packet Write format 
cannot be played back.
Note on playback operations of 
DVD VIDEOs and VIDEO CDs
Some playback operations of DVD 
VIDEOs and VIDEO CDs may be 
Since this system play back DVD 
VIDEOs and VIDEO CDs according to 
designed, some playback features may 
not be available. Also, refer to the 
instructions supplied with the DVD 
VIDEOs or VIDEO CDs.
Music discs encoded with 
copyright protection technologies
discs that conform to the Compact Disc 
(CD) standard. Recently, various music 
discs encoded with copyright protection 
technologies are marketed by some 
record companies. Please be aware that 
among those discs, there are some that 
do not conform to the CD standard and 
may not be playable by this product.
Notes on Multi Session disc
Session discs when an MP3 audio 
session. Any subsequent MP3 audio 
recorded in later sessions can also be 
played back.
AUDIO CD or VIDEO CD format, 
back.
Session disc as an AUDIO CD if there 
is a session recorded in AUDIO CD 
format on the disc. However, the 
system will only play back the disc if 
CD format.
With DATA CD or DATA DVD, the 
system will only play back DivX video 
(Except US and Canadian models)
8
HCD-DH3/DH5BT/DH7BT
SECTION  2
GENERAL
This section is extracted from
instruction manual.
Front panel
Top panel
Remote control (RM-SCD31)
Unit: 
?/1
 (on/standby)
Remote: TV 
?/1
 
1)
 (on/standby) 
Press to turn on the system.
Press to turn on the TV.
STANDBY indicator
Lights up when the system is turned off.
USB MEMORY indicator
Lights up when an optional USB device 
(Digital music player or USB storage 
media) is connected.
Z
 
(eject)
Press to eject the disc.
Disc slot
 +/
Press to select an album.
 (USB) port
Connect to an optional USB device 
(Digital music player or USB storage media).
PRESET +/
Press to select the preset station.
forward)
Press to select a track or file.
Remote: TV CH +/
1)
Press to change the TV channels.
Remote: SLOW 
/
Press to watch the slow-motion play.
Remote: TUNING +/
Press to tune in the desired station.
m
/
M
 (rewind/fast forward) 
Press to find a point in a track or file.
ECHO LEVEL
Press to adjust the microphone echo.
MIC LEVEL
Press to adjust the microphone volume.
MIC jack
Connect to a microphone.
AUDIO IN jack
Connect to an optional audio 
component.
PHONES jack
Connect the headphones.
DISPLAY
Press to display the disc information or 
clock in the front panel display.
PROGRESSIVE
Press to change the output video format 
(Interlace or Progressive format).
DSGX
Press to reinforce the bass.
IR Receptor
Unit: DVD 
N
 (play)
Press to select the DVD function.
Press to start playback of a disc.
Unit: USB 
N
 (play)
Press to select the USB function.
Press to start playback an optional USB 
device (Digital music player or USB 
storage media).
Unit: TUNER/BAND
Press to select the TUNER function.
Press to switch among FM and AM band.
Unit: AUDIO IN
Press to select the AUDIO IN function.
FUNCTION +/
Press to select the function.
REPEAT/FM MODE
Press to listen to a disc, a single track or 
file repeatedly.
Press to select FM reception mode 
(monaural or stereo).
X
 (pause)
Press to stop or pause playback.
Remote: 
H
2)
 (play)
Press to start playback.
VOLUME +/
2)
Press to adjust the volume.
TV VOL +/
1)2)
Press to adjust the TV volume.
DIMMER
Press to adjust the brightness of the 
display.
PICTURE NAVI
Press to select the VIEWER format for 
searching the chapters, titles and tracks.
Press to display the thumbnail pictures.
AUDIO
Press to display the current audio signal 
on the TV screen.
SUBTITLE
Press to switch the language of the 
subtitle (DVD VIDEO).
ANGLE
Press to change the angle (DVD VIDEO 
with multi-angles only).
DVD/USB/TUNER MENU
Press to display the MENU items on the 
TV screen.
Press to preset the radio station.
Press to select the play mode when using 
an optional USB device.
EQ
Press to select the sound effect.
 DISPLAY
Press to display the Control Menu on the 
TV screen.
TV
1)
Press to operate the TV functions.
ADVANCE 
Press to advance the current scene during 
playback.
REPLAY 
Press to replay the previous scene during 
playback.
c
 STEP/ STEP 
C
Press to play one frame at a time when 
playback is paused.
O
 RETURN
Press to return to the previous menu on 
the TV screen.
V
/
v
/
B
/
b
Press to select the MENU items.
ENTER
Press to enter the settings.
DVD TOP MENU
Press to display the DVD title on the TV 
screen.
CLEAR
Press to delete a pre-programmed track 
or file.
-/--
1)
Press to enter a single digit or double 
digit number.
Numeric buttons
2)
Press to select a track or file.
Press to enter a password or passcode.
10/0
1)
Press to enter a double digit number.
KEY CONTROL 
2
/
#
 
Press to change the key to suit your vocal 
range.
SCORE
Press to select the difficulty level for 
scoring mode.
KARAOKE MODE
Press to select the Karaoke mode.
KARAOKE PON
Press to activate the KARAOKE PON 
function.
TIME/TEXT
Press to change the information in the 
front panel display.
TV/VIDEO
1)
Press to switch the input sources.
SLEEP
Press to set the Sleep Timer.
TIMER MENU
Press to set the clock and the timers.
THEATRE SYNC
Press to activate the THEATRE SYNC 
function.
1)
   This button is used to operate a Sony TV. 
For details, see “Operating a Sony TV”.
2)
   The numeric button 5, TV VOL +, 
VOLUME + ql and H qk buttons have a 
tactile dot. Use the tactile dot as a reference
when operating the system.
1
2
7
8
9
q;
qa
qs
qd
qf
qg
qh
qj
qk
ql
w;
wa
ws
wd
wf
wg
wh
wj
wk
wl
e;
ea
es
ed
ef
eg
eh
ej
ek
el
3
4
5
6
.
/
>
 (go backward/
x
 (stop)
– HCD-DH3 –
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