CMT-DF1, HCD-DF1 - Sony Audio Service Manual (repair manual)

2007J05-1
© 2007.10

•

HCD-DF1 is the amplifier, disc player, tape deck
and tuner section in CMT-DF1.

DVD

Model Name Using Similar Mechanism

NEW

Section

Optical Pick-up Block Name

KHM-313AHC

Tape deck

Model Name Using Similar Mechanism

NEW

Section

Tape Transport Mechanism Type

H-21

– Continued on next page –

• 

This system incorporates Dolby

1)

 Digital and DTS

2)

Surround System.

1)

Manufactured under license from Dolby Laboratories. 
“Dolby” and the double-D symbol are trademarks of Dolby 
Laboratories.

2)

Manufactured under license from Digital Theater Systems, Inc. 
“DTS” and “DTS 2.0 + Digital Out” are trademarks of Digital 
Theater Systems, Inc.

• 

MPEG Layer-3 audio coding technology and patents licensed 

from Fraunhofer IIS and Thomson.

• 

DivX   is a video file compression technology, developed by 

®

developed by DivX, Inc. 
DivX, DivX Certified, and associated logos are trademarks of 
DivX, Inc. and are used under license.

Digital 

DIN power output (rated): 3.6 + 3.6 watts (4 ohms 

at 1kHz, DIN)

Continuous RMS power output (reference):

5 + 5 watts (4 ohms at 
1 kHz, 10% THD)

Music power output (reference):

8 + 8 watts (4 ohms at 
1 kHz, 10% THD)

The following measured at AC 120 V, 220 V, 
240 V, 50/60 Hz
DIN power output (rated): 3.6 + 3.6 watts

(4 ohms at 1 kHz, DIN)

Continuous RMS power output (reference):

5 + 5 watts
(4 ohms at 1 kHz, 10% 
THD)

Inputs
MIC (monaural mini jack): sensitivity 1.5 mV, 

impedance 10 kilohms

Outputs
VIDEO OUT (phono jack):

max. output level 
1 Vp-p, unbalanced, 
Sync negative, load 
impedance 75 ohms

S VIDEO OUT (4-pin/mini-DIN jack):

Y: 1 Vp-p, unbalanced, 
Sync negative,
C: 0.286 Vp-p, load 
impedance 75 ohms

COMPONENT VIDEO OUT:

Y: 1 Vp-p, 75 ohms
P

B

, P

R

: 0.7 Vp-p, 

75 ohms

DIGITAL OUT (OPTICAL) (Square optical 
connector jack, rear panel)
Wavelength

660 nm

PHONES (stereo mini jack):

accepts headphones of 
8 ohms or more

SPEAKER:

accepts impedance of 
4 ohms

System

Compact disc and 
digital audio and video 
system

Laser

Laser Diode Properties

•

 Emission duration: 

continuous

•

 Laser Output*: 

Less than 1,000 

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. 

Semiconductor laser 
(DVD: 

λ

=650 nm, 

CD: 

λ

=790 nm)

AEP Model

E Model

Australian Model

2

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

3

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

5

3-1.

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

6

3-2.

Panel Left, Panel Right ....................................................

6

3-3.

Cabinet Rear Block .........................................................

7

3-4.

Cabinet Front Block ........................................................

7

3-5.

Mech Deck (H-21), DECK Board ...................................

8

3-6.

MAIN Board ....................................................................

8

3-7.

OP Assy (KHM-313AHC) ..............................................

9

.............................................................. 10

....................... 10

............................ 11

7-1.

Block Diagram – MAIN Section – .................................. 13

7-2.

Block Diagram
– PANEL/POWER SUPPLY Section – ........................... 14

7-3.

Printed Wiring Board – DECK Board – .......................... 16

7-4.

Schematic Diagram – DECK Board – ............................. 17

7-5.

Printed Wiring Board – MICROPHONE Board – ........... 18

7-6.

Schematic Diagram – MICROPHONE Board – ............. 18

7-7.

Printed Wiring Board – MAIN Board – .......................... 19

7-8.

Schematic Diagram – MAIN Board (1/4) – .................... 20

7-9.

Schematic Diagram – MAIN Board (2/4) – .................... 21

7-10. Schematic Diagram – MAIN Board (3/4) – .................... 22
7-11. Schematic Diagram – MAIN Board (4/4) – .................... 23
7-12. Printed Wiring Board – PANEL Board – ........................ 24
7-13. Schematic Diagram – PANEL Board – ........................... 25
7-14. Printed Wiring Boards – POWER SUPPLY Section – .... 26
7-15. Schematic Diagram – POWER SUPPLY Section – ........ 27

8-1.

PANEL Section ............................................................... 31

8-2.

PANEL Board Section ..................................................... 32

8-3.

Tape Deck Section ........................................................... 33

8-4.

DVD Section ................................................................... 34

8-5.

Cabinet Rear Section ....................................................... 35

................................ 36

•

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.

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

 0

0

Frequency response

DVD (PCM 48 kHz):
2 Hz 

−

 22 kHz (

±

1 dB)

CD: 2 Hz 

−

 20 kHz (

±

1 dB)

Recording system

4-track 2-channel stereo

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range

87.5 

−

 108.0 MHz (50 kHz step)

Antenna

FM lead antenna

Antenna terminals

75 ohms unbalanced

Intermediate frequency

10.7 MHz 

AM tuner section

Tuning range
Canadian model:

530 

−

 1,710 kHz

Other models:

531 

−

 1,602 kHz

Antenna

AM loop antenna

Antenna terminals

External antenna terminal

Intermediate frequency

450 kHz

Power requirements
European and Russian models:

230 V AC, 50/60 Hz

Australian model:

230 

−

 240 V AC, 50/60 Hz

Korean model:

220 V AC, 60 Hz

Taiwan model:

120 V AC, 50/60 Hz

Other models:

120 V, 220 V, 230 

−

 240V 

AC, 50/60 Hz
Adjustable with voltage selector

Power consumption:

30 watts

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

Approx. 169 

×

 218 

×

 201 mm

Mass (excl. speakers)

Approx. 2.6 kg

Design and specifications are subject to change 
without notice.

This appliance is 
classified as a CLASS 1 
LASER product. This 
marking is located on the 
rear exterior.

3

Part No.

Model

2-896-838-0[] SP2

Singapore model

2-898-848-0[] CEL

AEP model

2-898-850-0[] AU1

Australian model

2-898-852-0[] HK2

Hong Kong model

2-898-853-0[] TW2

Taiwan model

2-898-854-0[] E3

E model

3-217-804-0[] KR2

Korean model

3-268-765-0[] RU1

Russian model

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.

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.

PART No.

4

You can play back the following discs on this 
system. Other discs cannot be played back.

“DVD VIDEO,” “DVD-R” and “DVD-RW” logos are 
trademarks.

DVD VIDEOs

DVD-RWs/
DVD-Rs

DVD+RWs/
DVD+Rs

VIDEO CDs

Audio CDs

CD-Rs/CD-RWs

Your system has a region code printed on the 
back of the unit and will only play DVDs labeled 
with identical region code.

DVDs labeled 

 will also be played on this 

system.
If you try to play any other DVD, the message 
“Wrong Region” will appear on the TV screen. 
Depending on the DVD, no region code 
indication may be labeled even though playing 
the DVD is prohibited by area restrictions.

•  

CD-ROMs (except for extension “.MP3”, 

“.JPG” or “.JPEG”)

•  

CD-Rs/CD-RWs other than those recorded in 

the following formats:

−

  music CD format

−

  video CD format

−

  MP3 (MPEG1 Audio Layer-3)/JPEG/DivX 

format that conforms to ISO9660*Level 1/
Level 2 or Joliet

•  

CD-ROMs recorded in PHOTO CD format.

•  

Data part of CD-Extras

•  

Super Audio CDs

•  

DVD-ROMs/DVD-Rs/DVD-RWs/DVD+Rs/

DVD+RWs other than those recorded in 
DivX format conforming to Universal Disk 
Format (UDF).

•  

DVD-ROMs/DVD-Rs/DVD-RWs/DVD+Rs/

DVD+RWs recorded in Multi Session

•  

DVD-RAMs

•  

DVD Audio discs

•  

A DVD with a different region code.

•  

DVD+R DL (Double layer) discs

•  

DVD+Rs/DVD+RWs recorded in VR (Video 

Recording) mode

•  

Photo-movies created after shooting on a 

DVD camcorder in VR (Video Recording 
format) mode

•  

Discs with non-standard shapes (e.g., heart, 

square, star) cannot be played on this unit. 
Attempting to do so may damage the unit. Do 
not use such discs.

•  

A disc with paper or stickers on it.

•  

A disc that has the adhesive, cellophane tape, 

or a sticker still left on it.

*  A logical format of files and folders on a 

CD-ROMs, defined by ISO (International 
Organization for standardization).

•  

In some cases, CD-Rs, CD-RWs, DVD-Rs, 

DVD-RWs (Video mode) (DVD-RWs 
created in video mode have the same format 
as a DVD VIDEO), DVD+R or DVD+RW 
cannot be played on this system depending 
upon the recording quality or physical 
condition of the disc, or the characteristics of 
the recording device. Furthermore, the disc 
will not play if it has not been correctly 
finalized. For more information, see the 
operating instructions for the recording 
device. Note that some playback functions 
may not work with some DVD+RWs/
DVD+Rs, even if they have been correctly 
finalized.

•  

A disc recorded in packet write format cannot 

be played.

Some playback operations of DVDs and VIDEO 
CDs may be intentionally set by software 
producers. Since this system plays DVDs and 
VIDEO CDs according to the disc contents the 
software producers designed, some playback 
features may not be available. Also, refer to the 
instructions supplied with the DVDs or VIDEO 
CDs.

This product is designed to playback 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.

A DualDisc 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.

•  

This system can play Multi Session CDs 

when an M P 3 file (JPEG file) is contained in 
the first session. Any subsequent MP3 files 
(JPEG files) recorded in later sessions can 
also be played back.

•  

If audio tracks and images in music CD 

format or video CD format are recorded in the 
first session, only the first session will be 
played back.

•  

When playing a disc which contains audio 

tracks in music CD format, MP3 files and 
JPEG files, only the audio tracks in music CD 
format can be played back.

•  

CD-R and CD-RW discs recorded in multi-

session that have not ended by “closing the 
session” are not supported.

•  

With CD-ROMs/CD-Rs/CD-RWs that 

contain DivX files in addition to MP3 files or 
JPEG files, the system plays only the DivX 
files.