CMT-DX400, CMT-DX400A, HCD-DX400 - Sony Audio Service Manual (repair manual)

cmt-dx400, cmt-dx400a, hcd-dx400 service manual
Model
CMT-DX400 CMT-DX400A HCD-DX400
Pages
30
Size
6.68 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-dx400-cmt-dx400a-hcd-dx400.pdf
Date

Read Sony CMT-DX400 / CMT-DX400A / HCD-DX400 Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
HCD-DX400/DX400A
SPECIFICATIONS
DVD RECIEVER
9-889-852-07
2012D33-1
© 
2012.04
AEP Model
E Model
HCD-DX400/DX400A
Australian Model
HCD-DX400
Chinese Model
HCD-DX400A
Ver. 1.6  2012.04
•  HCD-DX400 is the amplifi er, disc player, USB and 
tuner section in CMT-DX400.
•  HCD-DX400A is the amplifi er, disc player, USB and 
tuner section in CMT-DX400A.
Model Name Using Similar Mechanism
NEW
DVD Mechanism Type
CDM85 (MB)
Optical Pick-up Block Name
KHM-313CAA
Amplifi er section
Power output (rated):  20 + 20 watts (6 ohm at 1 kHz, 
1% THD) (Except Chinese model)
 
18 + 18 watts (6 ohm at 1 kHz, 
1% THD) (Chinese model)
Continuous RMS power output (reference):
 
25 + 25 watts (6 ohm at 1 kHz, 10% 
THD) (Except Chinese model)
 
22.5 + 22.5 watts (6 ohm at 1 kHz, 
10% THD) (Chinese model)
The following measured at 220 V – 240 V AC, 
 
50/60 Hz (AEP, Russian, Saudi 
Arabia, Singapore, Thai, Indian, 
Australian and Chinese models)
 
110 V – 120 V/220 V – 240 V AC, 
50/60 Hz (Chilean and Peruvian 
models)
 
120 V AC, 60 Hz (Mexican model)
 
120 V AC, 50/60 Hz (Taiwan 
model)
 
220 V – 240 V -, 60 Hz (Korean 
model)
* The system is not support C-Load testing.
Inputs
Audio In (3.5mm stereo jack):
 
sensitivity 700 mV,
 
impedance 10 kilohms
MIC (monaural mini jack) (Russian, Saudi Arabia, Singa-
pore, Taiwan, Korean, Thai, Indian 
and Australian models):
 
sensitivity 4 mV,
 
impedance 10 kilohms
Outputs
VIDEO OUT (RCA jack):
 
max. output level 1 Vp-p, 
 
unbalanced, Sync negative,
 
load impedance 75 ohm
COMPONENT VIDEO OUT:
 
Y: 1 Vp-p, 75 ohm
 
P
B
, P
R
: 0.7 Vp-p, 75 ohm
PHONES (stereo 
3.5 mm jack):
 
accepts headphones of 32 ohm
SPEAKER: 
accepts impedance of 6 ohm
Disc player section
System: 
Compact disc and digital
 
audio and video system
Laser: 
Laser Diode Properties
 
•  Emission duration: continuous
 • 
Laser 
Output*:
 
  Less than 1000 
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: 
=650 nm,
 CD: 
=790 nm)
Frequency response:  DVD (PCM 48 kHz):
 
20 Hz – 20 kHz (±1 dB)
 
CD: 20 Hz – 20 kHz (±1 dB)
USB section
Supported bit rate
MP3(MPEG/Audio Layer–3):
 
32 kbps – 320 kbps
WMA: 
48 kbps – 192 kbps
Sampling frequencies
MP3(MPEG/Audio Layer–3):
 32/44.1/48 
kHz
WMA: 44.1 
kHz
USB port (maximum current):
 5V 
500mA
Tuner section
FM stereo, FM superheterodyne tuner
FM tuner section
Tuning range: 
87.5 MHz – 108.0 MHz
 
(50 kHz step)
Antenna: 
FM lead antenna
Antenna terminals: 
75 ohm unbalanced
Intermediate frequency:
 10.7 
MHz
AM tuner section (Saudi Arabia model)
Tuning range:  
531 – 1,602 kHz/9 kHz
Antenna: 
AM loop antenna
Antenna terminals: 
External antenna terminal
Intermediate frequency:
 450 
kHz
AM tuner section (Mexican, Chilean and Peru-
vian models)
Tuning range: 
530 kHz – 1,710 kHz/
 
10 kHz (Default)
 
531 kHz – 1,710 kHz/9 kHz
Antenna: 
AM loop antenna
Antenna terminals: 
External antenna terminal
Intermediate frequency:
 450 
kHz
AM tuner section (Singapore, Taiwan, Korean, 
Thai, Indian and Chinese models)
Tuning range: 
531 kHz – 1,602 kHz/
 
9 kHz (Default)
 
530 kHz – 1,610 kHz/10 kHz
Antenna: 
AM loop antenna
Antenna terminals: 
External antenna terminal
Intermediate frequency: 
 450 
kHz
AM tuner section (Australian model)
Tuning range: 
531 kHz – 1,710 kHz/
 
9 kHz (Default)
 
530 kHz – 1,710 kHz/10 kHz
Antenna: 
AM loop antenna
Antenna terminals: 
External antenna terminal
Intermediate frequency: 
 450 
kHz
– Continued on next page –
Photo: HCD-DX400
HCD-DX400/DX400A
2
SAFETY-RELATED  COMPONENT  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 
 
WHOSE  PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  
MANUAL  OR  IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
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.
FLEXIBLE  CIRCUIT  BOARD  REPAIRING
•  Keep the temperature of 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.
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
This appliance is classifi ed as 
a CLASS 1 LASER product.
This marking is located on the 
rear exterior.
1. 
SERVICING  NOTES
 ..............................................   3
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   7
2-2. Cover 
(Top) 
.....................................................................   7
2-3.  Front Panel Block ...........................................................   8
2-4. Knob 
(Volume) 
...............................................................   8
2-5. DVD 
Block 
.....................................................................   9
2-6. MAIN 
Board 
...................................................................  10
2-7. FFC 
Holder 
.....................................................................  10
2-8.  Optical Pick-up Block (KHM-313CAA) ........................   11
2-9. Belt 
..................................................................................  11
3. DIAGRAMS
3-1. Block 
Diagram 
................................................................  12
3-2.  Printed Wiring Board - MAIN Board - ...........................   13
3-3.  Schematic Diagram - MAIN Board (1/2) (DX400) - .....   14
3-4.  Schematic Diagram - MAIN Board (2/2) (DX400) - .....   15
3-5.  Schematic Diagram - MAIN Board (1/2) (DX400A) - ...   16
3-6.  Schematic Diagram - MAIN Board (2/2) (DX400A) - ...   17
3-7.  Printed Wiring Board - CONTROL Board - ...................   18
3-8.  Schematic Diagram - CONTROL Board - ......................   19
4. 
EXPLODED  VIEWS
4-1. Cover 
Section 
..................................................................  25
4-2.  Front Panel Section .........................................................   26
4-3.  MAIN Board Section ......................................................   27
4-4. Chassis 
Section 
...............................................................  28
4-5.  DVD Mechanism Deck Section ......................................   29
•  This system incorporates Dolby* Digital.
  * Manufactured under license from Dolby Laboratories.
    “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
•  MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS 
and Thomson.
• DivX
®
, DivX Certifi ed
®
 and associated logos are registered trademarks of DivX, 
Inc. DivX grants licensees the right to use the DivX trademark.
  ABOUT DIVX VIDEO: DivX
®
 is a digital video format created by DivX, Inc. 
This is an offi cial DivX Certifi ed device that plays DivX video.
  Visit www.divx.com for more information and software tools to convert your fi les 
into DivX video.
  ABOUT DIVX VIDEO-ON-DEMAND: This DivX Certifi ed
®
 device must be 
registered in order to play DivX Video-on-Demand (VOD) content. To generate 
the registration code, locate the DivX VOD section in the device setup menu. Go 
to vod.divx.com with this code to complete the registration process and learn more 
about DivX VOD.
•  Windows Media is either a registered trademark or trademark of Microsoft Corpo-
ration in the United States and/or other countries.
•  This product contains technology subject to certain intellectual property rights of 
Microsoft. Use or distribution of this technology outside of this product is prohib-
ited without the appropriate license(s) from Microsoft.
•  ABOUT MPEG-4 VISUAL: THIS PRODUCT IS LICENSED UNDER THE 
MPEG-4 VISUAL PATENT PORTFOLIO LICENSE FOR THE PERSONAL 
AND NONCOMMERCIAL USE OF A CONSUMER FOR DECODING VIDEO 
IN COMPLIANCE WITH THE MPEG-4 VISUAL STANDARD (“MPEG-4 VID-
EO”) THAT WAS ENCODED BY A CONSUMER ENGAGED IN A PERSONAL 
AND ONCOMMERCIAL ACTIVITY AND/OR WAS OBTAINED FROM A 
VIDEO PROVIDER LICENSED BY MPEG LA TO PROVIDE MPEG-4 VIDEO.
  NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY OTHER 
USE. ADDITIONAL INFORMATION INCLUDING THAT RELATING TO 
PROMOTIONAL, INTERNAL AND COMMERCIAL USES AND LICENSING 
MAY BE OBTAINED FROM MPEG LA, LLC. SEE http://www.mpegla.com/
•  All other trademarks and registered trademarks are of their respective holders.
  In this manual, ™ and ® marks are not specifi ed.
General
Power requirements
Chilean and Peruvian models:
 
110 V – 120 V/220 V – 240 V AC, 50/60Hz, Adjutable with 
voltage selector
Mexican model: 
120 V AC, 60 Hz
Taiwan model: 
120 V AC, 50/60 Hz
Korean model: 
220 V – 240 V -, 60 Hz
Other models: 
220 V – 240 V AC, 50/60 Hz
Power consumption:
On: 25 
watts
Standby: 0.5 
watts
Dimensions (w/h/d) (excl. speakers):
 
Approx. 175 × 240 × 210 mm
Mass (excl. speakers): 2.4 kg
Design and specifi cations are subject to change without notice.
Ver. 1.5
HCD-DX400/DX400A
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 
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 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.
•  Usable with ordinary solder
 
It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.
NOTES  ON  HANDLING  THE OPTICAL  PICK-UP  
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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.
NOTE  THE  EACH  BOARDS  REPAIRING
The mount parts on each boards installed in this set cannot ex-
change with single. When the each mount parts are damaged, ex-
change the entire mounted board.
Printed wiring board and schematic diagram have been described 
to this service manual is for the reference. 
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.
TRAY  LOCK/UNLOCK  MODE
Procedure:
1.  Press the [
?/1
] button to turn on the system.
2.  Press and hold the [
x
] and [OPEN/CLOSE 
Z
] buttons (around 
5 seconds).
3.  The message “LOCKED” appears on the fl uorescent indicator 
tube, and disc tray is locked.
4.  To release this mode, do the step 2 again.
5.  The message “UNLOCKED” is displayed on the fl uorescent 
indicator tube, and the disc tray is unlocked.
Ver. 1.4
HCD-DX400/DX400A
4
MODEL  IDENTIFICATION
Distinguish the model and destination by referring to the print of back panel or the model number label.
– HCD-DX400 –
Ver. 1.5
AEP model
Russian model
Asian/Australian models
Mexican model
Chilean and Peruvian models
Australian model
4-187-517-0s
Saudi Arabia model
4-188-921-0s
Singapore model
4-187-516-0s
Taiwan model
4-187-518-0s
Korean model
4-187-519-0s
Thai model
4-187-520-0s
4-207-924-0s
Indian model
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