CMT-HX30R, HCD-HX30R - Sony Audio Service Manual (repair manual)

cmt-hx30r, hcd-hx30r service manual
Model
CMT-HX30R HCD-HX30R
Pages
68
Size
5.12 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-hx30r-hcd-hx30r.pdf
Date

Read Sony CMT-HX30R / HCD-HX30R Service Manual online

SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
HCD-HX30R
COMPACT DISC RECEIVER
9-889-157-01
2008E05-1
© 
2008.05
Ver. 1.0  2008.05
SPECIFICATIONS
Russian Model
Model Name Using Similar Mechanism
HCD-HX3
Base Unit Name
BU-K6BD91UR-WOD
Optical Pick-up Block Name
KSM-213DCP
•  HCD-HX30R is the amplifi er, USB, CD player and 
tuner section in CMT-HX30R.
“WALKMAN” and “WALKMAN”
logo are registered trademarks of Sony
Corporation.
MICROVAULT is a trademark of Sony
Corporation.
MPEG Layer-3 audio coding 
technology and patents licensed from
Fraunhofer IIS and Thomson.
Amplifier section
DIN power output (rated):
40 + 40 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output
(reference): 50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference): 50 + 
50 watts (6 ohms at 1 kHz, 10% THD)
Inputs:
AUDIO IN (stereo mini jack):
voltage 250 mV, impedance 
47 kilohms
 (USB) port: Type A, maximum
current 500 mA
Outputs:
PHONES (stereo mini jack): accepts 
headphones of 8 ohms or more
SPEAKER: accepts impedance of 
6 ohms
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32
 320 kbps, VBR
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
 (USB) port
USB-A (Full Speed)
CD player section
System: Compact disc and digital audio
system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6μW
* 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
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tuner section
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:
531
 1,602 kHz (with 9 kHz tuning
interval)
Antenna: AM loop antenna, external
antenna terminal
Intermediate frequency: 450 kHz
General
Power requirements:
220
 240 V AC, 50/60 Hz
Power consumption: 40 watts
Dimensions (w/h/d) (excl. speakers): 
Approx. 285 × 120 × 215 mm
Mass (excl. speakers): Approx. 2.6 kg
Design and specifications are subject to
change without notice.
HCD-HX30R
2
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.
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 
 
WHOSE  PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  
MANUAL  OR  IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
This appliance is classifi ed as a CLASS 1 
LASER product. This marking is located
on the rear exterior.
1. 
SERVICING  NOTES
  .............................................   3
2. GENERAL
  ..................................................................   4
3. DISASSEMBLY
3-1. Disassembly 
Flow 
...........................................................   6
3-2. Panel 
(Top) 
......................................................................   7
3-3.  Front Panel Block ...........................................................   7
3-4. MAIN 
Board 
...................................................................   8
3-5.  SWITCHING POWER Board/SUB POWER Board ......   8
3-6.  Loading Mechanism Block .............................................   9
3-7. Base 
Unit 
.........................................................................   9
3-8. Belt 
..................................................................................  10
3-9.  OP Base Assy (KSM-213D) ...........................................   10
4. 
TEST  MODE 
 ............................................................   11
5. 
ELECTRICAL  CHECKS 
 ......................................   13
6. DIAGRAMS
6-1.  Block Diagram - CD SERVO Section - ..........................   15
6-2.  Block Diagram - MAIN Section - ...................................   16
6-3.  Block Diagram - AMP Section - .....................................   17
6-4. Block 
Diagram 
 
- PANEL/POWER SUPPLY Section - ............................   18
6-5.  Printed Wiring Boards - CD Section - ............................   20
6-6.  Schematic Diagram - CD Section - .................................   21
6-7.  Printed Wiring Boards - USB Section - ..........................   22
6-8.  Schematic Diagram - USB Section - ..............................   23
6-9.  Printed Wiring Board - MAIN Section - .........................   24
6-10.  Schematic Diagram - MAIN Section (1/3) - ...................   25
6-11.  Schematic Diagram - MAIN Section (2/3) - ...................   26
6-12.  Schematic Diagram - MAIN Section (3/3) - ...................   27
6-13.  Printed Wiring Board - AMP Section - ...........................   28
6-14.  Schematic Diagram - AMP Section - ..............................   29
6-15.  Printed Wiring Boards - OUTPUT Section - ..................   30
6-16.  Schematic Diagram - OUTPUT Section - ......................   30
6-17.  Printed Wiring Boards - PANEL Section - .....................   32
6-18.  Schematic Diagram - PANEL Section - ..........................   33
6-19.  Printed Wiring Boards - POWER SUPPLY Section - ....   34
6-20.  Schematic Diagram - POWER SUPPLY Section - .........   35
7. 
EXPLODED  VIEWS
7-1. Panel 
Section 
...................................................................  48
7-2. Chassis 
(Top) 
Section 
.....................................................  49
7-3.  Panel Key Section ...........................................................   50
7-4.  Front Panel Section .........................................................   51
7-5. Main 
Section 
...................................................................  52
7-6. Chassis 
Section 
...............................................................  53
7-7.  Loading Mechanism Section  .........................................   54
7-8.  Base Unit Section (BU-K6BD91UR-WOD)  .................   55
8. 
ELECTRICAL  PARTS  LIST
  ..............................   56
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
HCD-HX30R
3
SECTION  1
SERVICING  NOTES
NOTES  ON  HANDLING  THE OPTICAL  PICK-UP  
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.
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.
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.
RELEASING  THE  ANTITHEFT  LOCK
The disc tray lock function for the antitheft of an demonstration 
disc in the store is equipped.
Releasing Procedure:
1.  Press the [
?/1
] button to turn the power on.
2.  While pressing the [
x
/CANCEL] button, press the [
Z
] but-
ton unit “UNLOCKED” displayed on the fl uorescent indicator 
tube (around 5 seconds) .
Note: When “UNLOCKED” is displayed, the tray lock is not released by 
turning power on/off with the [
?/1
] button.
HOW  TO  OPEN  THE  TRAY  WHEN  POWER  SWITCH  
TURN  OFF
Note: Please resolve it to the state of the fi gure below referring to 3-2.
 
  Panel (Top) and 3-3. Front Panel Block of DISASSEMBLY.
 Slide the boss.
mechanism deck
USB board
HCD-HX30R
4
SECTION  2
GENERAL
Unit
Front panel
Top panel
Remote
/
 (power) button
Press to turn on the system.
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.
Remote sensor
Unit: VOLUME control
Remote: VOLUME +/  button 
Turn or press to adjust the volume.
AUDIO IN jack
Connect to an optional audio
component.
PHONES jack
Connect the headphones.
 (open/close) button
Press to open or close the disc tray.
 (USB) port
Connect to an optional USB device
(Digital music player or USB storage 
media).
Playback buttons and function
buttons
Unit: USB
 (play/pause) 
button
Press to select the USB function.
Press to start or pause playback of an
optional USB device (Digital music 
player or USB storage media).
Remote: USB button
Press to select the USB function.
Unit: CD 
 (play/pause) 
button
Press to select the CD function.
Press to start or pause playback of a disc.
Remote: CD button
Press to select the CD function.
Remote:
 (play) button, 
 (pause) button 
Press to start or pause playback.
TUNER/BAND button
Press to select the TUNER function.
Press to select FM or AM reception
mode.
Unit: AUDIO IN button
Press to select the AUDIO IN function.
FUNCTION button
Press to select the function.
ENTER button
Press to enter the settings.
/
 (go back/go forward)
button
Press to select a track or file.
Unit: TUNE +/  (tuning) button 
Remote: +/  (tuning) button 
Press to tune in the desired station.
 +/  (select folder) button 
Press to select a folder.
/
 (rewind/fast forward)
button
Press to find a point in a track or file.
CD-USB SYNC/REC1 button
Press to record from a disc onto the 
connected optional USB device (Digital
music player or USB storage media).
ERASE button
Press to erase MP3 files and folders 
from the connected optional USB device
(Digital music player or USB storage 
media).
Sound buttons
Unit: DSGX button
Remote: EQ button
Press to select the sound effect.
CLOCK/TIMER SELECT button 
CLOCK/TIMER SET button
Press to set the clock and the Play Timer.
REPEAT/FM MODE button
Press to listen to a disc, an USB device, a 
single track or file repeatedly.
Press to select the FM reception mode
(monaural or stereo).
Battery compartment lid 
CLEAR button
Press to delete a pre-programmed track 
or file.
TUNER MEMORY button
Press to preset the radio station.
PLAY MODE/TUNING MODE 
button
Press to select the play mode of a CD,
MP3 disc or an optional USB device
(Digital music player or USB storage 
media).
Press to select the tuning mode.
DISPLAY button
Press to change the information on the 
display.
SLEEP button
Press to set the Sleep Timer.
Unit:
/CANCEL (stop/cancel) 
button
Remote:
 (stop) button
Press to stop playback.
Press to cancel search.
SEARCH button
Press to enter or exit search mode.
Page of 68
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