HCD-HX9 — Sony Audio Service Manual (repair manual)

Model
HCD-HX9
Pages
73
Size
5.53 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-hx9.pdf
Date

View Sony HCD-HX9 Service Manual online

SERVICE MANUAL
COMPACT DISC RECEIVER
SPECIFICATIONS
HCD-HX9
Ver. 1.1  2007.07
Model Name Using Similar Mechanism
HCD-HX5
Base Unit Name
BU-K6BD90U-WOD
Optical Pick-up Block Name
KSM-213DCP
9-887-697-02
2007G05-1
© 2007.07
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
UK Model
HCD-HX9 is the amplifier, USB, CD player
and tuner section in CMT-HX9DAB.
“WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corporation.
MICROVAULT is a trademark of Sony Corporation.
ATRAC, ATRAC3, ATRAC3plus and their logos are trademarks of Sony Corporation.
U.S. and foreign patents licensed from Dolby Laboratories.
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
ATRAC: 48 – 352 kbps
(ATRAC3plus), 66/105/132 kbps
(ATRAC3)
WMA: 32 – 192 kbps, VBR
AAC: 48 – 320 kbps
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
ATRAC: 44.1 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6 
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.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tuner section
DAB tuner section:
Frequency range*
Band-III: 174.928 (5A) – 239.200 (13F) MHz
* For details, see “DAB frequency table”.
Antenna: FM/DAB lead antenna
Antenna terminal: 75 ohms, F female
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
DABfrequency 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
General
Power requirements: 220 – 240 V AC, 50/60 Hz
Power consumption: 40 watts
Dimensions (w/h/d) (excl. speakers):
Approx. 285 
×
 120 
×
 235 mm
Mass (excl. speakers): Approx. 2.7 kg
Design and specifications are subject to change without
notice.
2
HCD-HX9
Notes on chip component replacement
Never reuse a disconnected chip component.
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
This appliance is classified as a CLASS 1 
LASER product. This marking is located 
on the rear exterior.
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
1.
SERVICING  NOTES
...............................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
6
3-2.
Panel (TOP) .....................................................................
7
3-3.
Module (DAB Tuner), DAB POWER Board ..................
7
3-4.
Front Panel Block ............................................................
8
3-5.
MAIN Board ....................................................................
8
3-6.
SWITCHING POWER Board, SUB POWER Board .....
9
3-7.
D. C. Fan (50 Square) ......................................................
9
3-8.
Loading Mechanism Block ............................................. 10
3-9.
Base Unit ......................................................................... 10
3-10. Belt .................................................................................. 11
3-11. Op Base Assy (KSM-213D), CD Board .......................... 11
4.
TEST  MODE
.............................................................. 12
5.
ELECTRICAL  CHECKS
........................................ 14
6.
DIAGRAMS
6-1.
Block Diagram – CD SERVO Section – ......................... 15
6-2.
Block Diagram – MAIN Section – .................................. 16
6-3.
Block Diagram – AMP/USB 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 Board – DAB TUNER Section – ............ 22
6-8.
Schematic Diagram – DAB TUNER 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 – USB Section – ......................... 32
6-18. Schematic Diagram – USB Section – .............................. 33
6-19. Printed Wiring Boards – PANEL Section – ..................... 34
6-20. Schematic Diagram – PANEL Section – ......................... 35
6-21. Printed Wiring Boards – POWER SUPPLY Section – .... 36
6-22. Schematic Diagram – POWER SUPPLY Section – ........ 37
7.
EXPLODED  VIEWS
7-1.
Panel Section ................................................................... 52
7-2.
Chassis (Top) Section ...................................................... 53
7-3.
Panel Key Section ............................................................ 54
7-4.
Front Panel Section ......................................................... 55
7-5.
Main Section .................................................................... 56
7-6.
Chassis Section ................................................................ 57
7-7.
Loading Mechanism Section ........................................... 58
7-8.
Base Unit Section (BU-K6BD90U-WOD) ..................... 59
8.
ELECTRICAL  PARTS  LIST
................................ 60
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
3
HCD-HX9
SECTION  1
SERVICING  NOTES
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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
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  ANTITHEFT  LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure :
1. Press the  
I
/1
  button to turn the power on.
2. While pressing the
x/
CANCEL
button, press the
Z
button
until “UNLOCKED” displayed on the fluorescent indicator
tube (around 5 seconds).
Note:
When “LOCKED” is displayed, the antitheft lock is not released by
turning power on/off with the
I/
1
button.
4
HCD-HX9
SECTION  2
GENERAL
This section is extracted from
instruction manual.
Front panel
Top panel
Remote
1
`/1
 (power) button
Press to turn on the system.
2
STANDBY indicator
Lights up when the system is turned off.
3
USB MEMORY indicator
Lights up when an optional USB device 
(Digital music player or USB storage 
media) is connected.
4
Remote sensor
5
Unit: VOLUME control
Remote: VOLUME +/– button 
Turn or press to adjust the volume.
6
AUDIO IN jack
Connect to an optional audio 
component.
7
PHONES jack
Connect the headphones.
8
Z
 (open/close) button
Press to open or close the disc tray.
9
 (USB) port
Connect to an optional USB device 
(Digital music player or USB storage 
media).
q;
Playback buttons and function 
buttons
Unit: USB 
NX
 (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 
NX
 (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: 
N
 (play) button, 
x
 (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.
qa
Unit: 
x
/CANCEL (stop/cancel) 
button
Remote: 
x
 (stop) button
Press to stop playback. 
Press to cancel search.
qs
SEARCH button
Press to enter or exit search mode.
qd
ENTER button
Press to enter the settings.
qf
.
/
>
 (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.
m
/
M
 (rewind/fast forward) 
button
Press to nd a point in a track or file.
qg
DAB AUTO SCAN button
Press to run the DAB Automatic Scan.
qh
Sound buttons
Unit: DSGX button
Remote: EQ button
Press to select the sound effect.
qj
DISPLAY button
Press to change the information on the 
display.
qk
CLOCK/TIMER SELECT button 
CLOCK/TIMER SET button
Press to set the clock and the Play Timer.
ql
REPEAT/FM MODE button
Press to listen to a disc, a single track or 
file repeatedly.
Press to select the FM reception mode 
(monaural or stereo).
w;
Battery compartment lid 
wa
CLEAR button
Press to delete a pre-programmed track 
or file.
ws
TUNER MEMORY button
Press to preset the radio station.
wd
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.
wf
SLEEP button
Press to set the Sleep Timer.
Page of 73
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  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).