Sony BMZ-K11 / CX-BK11 Service Manual ▷ View online
SERVICE MANUAL
COMPACT DISC RECEIVER
AEP Model
UK Model
CX-BK11
Ver 1.0 2004.07
SPECIFICATIONS
9-877-954-01
2004G05-1
© 2004.07
© 2004.07
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
Published by Sony Engineering Corporation
•
CX-BK11 is the amplifier, CD player and tuner
section in BMZ-K11.
section in BMZ-K11.
Model Name Using Similar Mechanism
CX-BK33
CD Mechanism Type
CDM69BV-30CBD64NS
Base Unit Name
BU-30CBD64NS
Optical Pick-up Name
A-MAX.3
Amplifier section
DIN power output (rated): 80 + 80 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
100 + 100 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference):
220 + 220 W
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
Inputs
MD (AUX) IN L/R (phono jacks):
MD (AUX) IN L/R (phono jacks):
Sensitivity 1 V,
impedance 47 kilohms
impedance 47 kilohms
LINE IN AUDIO L/R (phono jacks):
Voltage 250 mV,
impedance 47 kilohms
impedance 47 kilohms
LINE IN VIDEO (phono jack):
1Vp-p, 75 ohms
Outputs
PHONES (stereo mini jack):
PHONES (stereo mini jack):
Accepts headphones with
an impedance of 32 ohms
or more
an impedance of 32 ohms
or more
SPEAKER:
Accepts impedance of
6 ohms
6 ohms
MD (AUX) OUT L/R (phono jacks):
Voltage 250 mV,
impedance 1 kilohm
impedance 1 kilohm
VIDEO OUT (phono jack):
Max. output level 1Vp-p,
unbalanced, Sync
negative, load impedance
75 ohms
unbalanced, Sync
negative, load impedance
75 ohms
DIGITAL OUT :
Sampling frequencies:
44.1 kHz
Wavelength: 660 nm
44.1 kHz
Wavelength: 660 nm
CD player section
System
Compact disc and digital
audio system
audio system
Laser
Semiconductor laser
(
(
λ
=780 nm)
Emission duration:
continuous
continuous
Frequency response
2 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)
(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 the tuning interval
set at 9 kHz)
(with the tuning interval
set at 9 kHz)
Antenna
AM loop antenna, external
antenna terminal
antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
230 V AC, 50/60 Hz
Power consumption
110 W
0.3 W (in Power Saving
mode)
0.3 W (in Power Saving
mode)
Dimensions (w/h/d) incl. projecting parts and controls
Amplifier/Tuner/CD section:
Amplifier/Tuner/CD section:
Approx. 207
×
391
×
439 mm
Mass
Approx. 8.2 kg
Design and specifications are subject to change
without notice.
without notice.
CX-BK11
2
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.
Flexible Circuit Board Repairing
•
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
other than those specified herein may result in hazardous radiation
exposure.
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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
This appliance is
classified as a CLASS 1
LASER product. This
marking is located on the
rear exterior.
classified as a CLASS 1
LASER product. This
marking is located on the
rear exterior.
The following caution label is located inside the
apparatus.
apparatus.
CX-BK11
3
You can play back the following discs on this
system. Other discs cannot be played back.
system. Other discs cannot be played back.
List of playable discs
Discs that this system cannot
play
play
• An 8 cm disc
• An 8 cm disc converted to a standard disc
• An 8 cm disc converted to a standard disc
using an adaptor
• CD-ROMs
• CD-Rs/CD-RWs other than those recorded in
• CD-Rs/CD-RWs other than those recorded in
the following formats:
– music CD format
– MP3 format that conforms to ISO9660
– music CD format
– MP3 format that conforms to ISO9660
1)
Level 1/Level 2, Joliet or Multi Session
2)
• A disc that has a non-standard shape (e.g.,
card, heart).
• A disc with paper or stickers on it.
• A disc that has the adhesive, cellophane tape,
• A disc that has the adhesive, cellophane tape,
or a sticker still left on it.
1)
ISO9660 Format
The most common international standard for the
logical format of files and folders on a CD-ROM.
There are several specification levels. In Level 1,
file names must be in the 8.3 format (no more than
eight characters in the name, no more than three
characters in the extension “.MP3”) and in capital
letters. Folder names can be no longer than eight
characters. There can be no more than eight nested
folder levels. Level 2 specifications allow file
names and folder names up to 31 characters long.
Each folder can have up to 8 trees.
For Joliet in the expansion format (file and folder
names can have up to 32 characters), make sure of
the contents of the writing software, etc.
The most common international standard for the
logical format of files and folders on a CD-ROM.
There are several specification levels. In Level 1,
file names must be in the 8.3 format (no more than
eight characters in the name, no more than three
characters in the extension “.MP3”) and in capital
letters. Folder names can be no longer than eight
characters. There can be no more than eight nested
folder levels. Level 2 specifications allow file
names and folder names up to 31 characters long.
Each folder can have up to 8 trees.
For Joliet in the expansion format (file and folder
names can have up to 32 characters), make sure of
the contents of the writing software, etc.
2)
Multi Session
This is a recording method that enables adding of
data using the Track-At-Once method.
Conventional CDs begin at a CD control area called
the Lead-in and end at an area called Lead-out. A
Multi Session CD is a CD having multiple sessions,
with each segment from Lead-in to Lead-out
regarded as a single session.
This is a recording method that enables adding of
data using the Track-At-Once method.
Conventional CDs begin at a CD control area called
the Lead-in and end at an area called Lead-out. A
Multi Session CD is a CD having multiple sessions,
with each segment from Lead-in to Lead-out
regarded as a single session.
Playable discs
Format of discs
Disc logo
Audio CDs
CD-R/CD-RW
(audio data/MP3 files)
(audio data/MP3 files)
Notes on CD-R and CD-RW
• Some CD-Rs or CD-RWs 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.
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.
• Discs recorded on CD-R/CD-RW drives may
not be played back because of scratches, dirt,
recording condition or the driver’s
characteristics.
recording condition or the driver’s
characteristics.
• CD-R and CD-RW discs recorded in multi-
session that have not ended by “closing the
session” are not supported.
session” are not supported.
• The system may be unable to play MP3
format files that do not have the “.MP3”
extension.
extension.
• Attempting to play non-MP3 format files that
have the “.MP3” extension may result in noise
or malfunction.
or malfunction.
• With formats other than ISO9660 level 1 and
2, folder names or file names may not be
displayed correctly.
displayed correctly.
• The following discs take a longer time to start
playback.
– a disc recorded with complicated tree
structure.
– a disc recorded in Multi Session.
– a disc to which data can be added (non-
finalized disc).
Music discs encoded with
copyright protection
technologies
copyright protection
technologies
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.
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.
Cautions when playing a disc
that is recorded in Multi
Session
that is recorded in Multi
Session
• If the disc begins with a CD-DA session, it is
recognized as a CD-DA (audio) disc, and only
the first session will be played back.
the first session will be played back.
• If the disc begins with an MP3 session, it is
recognized as an MP3 disc, and playback
continues until a CD-DA (audio) session is
encountered.
continues until a CD-DA (audio) session is
encountered.
• The playback range of an MP3 disc is
determined by the tree structure of files
produced by analyzing of the disc.
produced by analyzing of the disc.
• A disc with a mixed CD format will be
recognized as a CD-DA (audio) disc.
• Data part of CD-Extras
1)
• Audio part of Mixed CDs
2)
1)
CD-Extra: This format records audio (audio CD
data) on the tracks in session 1 and data on the tracks
in session 2.
data) on the tracks in session 1 and data on the tracks
in session 2.
2)
Mixed CD: This format records data on the first
track and audio (audio CD data) on the second and
subsequent tracks of a session.
track and audio (audio CD data) on the second and
subsequent tracks of a session.
CX-BK11
4
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
5
2.
GENERAL
Location of Controls ........................................................
7
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
9
3-2.
Side Panel (L)/(R) ........................................................... 10
3-3.
Top Panel Block .............................................................. 10
3-4.
Front Panel Block ............................................................ 11
3-5.
MAIN Board .................................................................... 11
3-6.
Rear Panel Block ............................................................. 12
3-7.
Tuner (FM/AM) ............................................................... 12
3-8.
SPEAKER Board ............................................................ 13
3-9.
ACDC Board, Power Transformer .................................. 13
3-10. FRONT AMP Board Block ............................................. 14
3-11. CD Mechanism Deck (CDM69BV-30CBD64NS) .......... 14
3-12. Base Unit Section (BU-30CBD64NS) ............................ 15
3-13. OP Assy ........................................................................... 15
3-14. SW (1) Board, SW (2) Board, SW (3) Board,
3-11. CD Mechanism Deck (CDM69BV-30CBD64NS) .......... 14
3-12. Base Unit Section (BU-30CBD64NS) ............................ 15
3-13. OP Assy ........................................................................... 15
3-14. SW (1) Board, SW (2) Board, SW (3) Board,
SW (4) Board, Bracket (Top) Assy .................................. 16
3-15. RELAY Board ................................................................. 16
3-16. Motor (Stocker) Assy (Stocker) (M761) ......................... 17
3-17. Motor (Roller) Assy (Roller) (M781) .............................. 17
3-18. Motor (Mode) Assy (Mode) (M771) ............................... 18
3-19. Rubber Roller (Slider) Assy ............................................ 18
3-20. Timing Belt (Front/Rear) ................................................. 19
3-21. Cam (Gear) ...................................................................... 19
3-22. SENSOR Board ............................................................... 20
3-16. Motor (Stocker) Assy (Stocker) (M761) ......................... 17
3-17. Motor (Roller) Assy (Roller) (M781) .............................. 17
3-18. Motor (Mode) Assy (Mode) (M771) ............................... 18
3-19. Rubber Roller (Slider) Assy ............................................ 18
3-20. Timing Belt (Front/Rear) ................................................. 19
3-21. Cam (Gear) ...................................................................... 19
3-22. SENSOR Board ............................................................... 20
4.
ASSEMBLY
4-1.
How To Install The Cam (Eject Lock) ............................ 21
4-2.
How To Install The Cam (Gear) ...................................... 21
4-3.
How To Install The Gear (Mode 2) ................................. 22
4-4.
How To Install The Gear (Mode Cam) ............................ 22
4-5.
How To Install The Rotary Encoder (S702),
Gear (Stocker Communication) ....................................... 23
Gear (Stocker Communication) ....................................... 23
4-6.
How To Install The Cam (Stocker U/D) .......................... 23
4-7.
How To Install The Stocker Assy .................................... 24
4-8.
Phase Adjustment Between Pinions (Slider)
and Slider-1 To 5 (L/R) ................................................... 25
and Slider-1 To 5 (L/R) ................................................... 25
5.
TEST MODE
............................................................... 26
6.
ELECTRICAL ADJUSTMENTS
CD Section ...................................................................... 28
7.
DIAGRAMS
7-1.
Block Diagram – CD Section – ...................................... 31
7-2.
Block Diagram – TUNER/USB Section – ..................... 32
7-3.
Block Diagram – AMP Section – ................................... 33
7-4.
Block Diagram – POWER SUPPLY Section – .............. 34
7-5.
Printed Wiring Board – BD Board – .............................. 36
7-6.
Schematic Diagram – BD Board – ................................. 37
7-7.
Printed Wiring Boards – CHANGER Section – ............. 38
7-8.
Schematic Diagram – CHANGER Section – ................. 39
7-9.
Schematic Diagram – MAIN Board (1/4) – ................... 40
7-10. Schematic Diagram – MAIN Board (2/4) – ................... 41
7-11. Schematic Diagram – MAIN Board (3/4) – ................... 42
7-12. Schematic Diagram – MAIN Board (4/4) – ................... 43
7-13. Printed Wiring Board – MAIN Board – ......................... 44
7-14. Printed Wiring Board – FRONT AMP Board – ............. 45
7-15. Schematic Diagram – FRONT AMP Board (1/2) – ....... 46
7-16. Schematic Diagram – FRONT AMP Board (2/2) – ....... 47
7-17. Printed Wiring Board – USB Board – ............................ 48
7-18. Schematic Diagram – USB Board – ............................... 49
7-19. Printed Wiring Board – HEADPHONE Board – ........... 50
7-20. Schematic Diagram – HEADPHONE Board – .............. 50
7-21. Printed Wiring Board – SPEAKER Board – .................. 51
7-22. Schematic Diagram – SPEAKER Board – ..................... 51
7-23. Printed Wiring Board – LCD Board – ............................ 52
7-24. Schematic Diagram – LCD Board – ............................... 53
7-25. Printed Wiring Boards – KEY Section – ........................ 54
7-26. Schematic Diagram – KEY Section – ............................ 55
7-27. Printed Wiring Board – ACDC Board – ......................... 56
7-28. Schematic Diagram – ACDC Board – ............................ 57
7-29. Printed Wiring Board – PT76 Board – ........................... 58
7-30. Schematic Diagram – PT76 Board – .............................. 59
7-11. Schematic Diagram – MAIN Board (3/4) – ................... 42
7-12. Schematic Diagram – MAIN Board (4/4) – ................... 43
7-13. Printed Wiring Board – MAIN Board – ......................... 44
7-14. Printed Wiring Board – FRONT AMP Board – ............. 45
7-15. Schematic Diagram – FRONT AMP Board (1/2) – ....... 46
7-16. Schematic Diagram – FRONT AMP Board (2/2) – ....... 47
7-17. Printed Wiring Board – USB Board – ............................ 48
7-18. Schematic Diagram – USB Board – ............................... 49
7-19. Printed Wiring Board – HEADPHONE Board – ........... 50
7-20. Schematic Diagram – HEADPHONE Board – .............. 50
7-21. Printed Wiring Board – SPEAKER Board – .................. 51
7-22. Schematic Diagram – SPEAKER Board – ..................... 51
7-23. Printed Wiring Board – LCD Board – ............................ 52
7-24. Schematic Diagram – LCD Board – ............................... 53
7-25. Printed Wiring Boards – KEY Section – ........................ 54
7-26. Schematic Diagram – KEY Section – ............................ 55
7-27. Printed Wiring Board – ACDC Board – ......................... 56
7-28. Schematic Diagram – ACDC Board – ............................ 57
7-29. Printed Wiring Board – PT76 Board – ........................... 58
7-30. Schematic Diagram – PT76 Board – .............................. 59
8.
EXPLODED VIEWS
8-1.
Panel Section ................................................................... 72
8-2.
Front Boards Section ....................................................... 73
8-3.
Front Cabinet Section ...................................................... 74
8-4.
MAIN Board Section ....................................................... 75
8-5.
Chassis Section ................................................................ 76
8-6.
CD Mechanism Deck Section-1
(CDM69BV-30CBD64NS) ............................................. 77
(CDM69BV-30CBD64NS) ............................................. 77
8-7.
CD Mechanism Deck Section-2
(CDM69BV-30CBD64NS) ............................................. 78
(CDM69BV-30CBD64NS) ............................................. 78
8-8.
CD Mechanism Deck Section-3
(CDM69BV-30CBD64NS) ............................................. 79
(CDM69BV-30CBD64NS) ............................................. 79
8-9.
CD Mechanism Deck Section-4
(CDM69BV-30CBD64NS) ............................................. 80
(CDM69BV-30CBD64NS) ............................................. 80
8-10. CD Mechanism Deck Section-5
(CDM69BV-30CBD64NS) ............................................. 81
8-11. CD Mechanism Deck Section-6
(CDM69BV-30CBD64NS) ............................................. 82
8-12. Base Unit Section (BU-30CBD64NS) ............................ 83
9.
ELECTRICAL PARTS LIST
................................ 84
