Read Sony MEX-1HD (serv.man2) Service Manual online
SERVICE MANUAL
AUDIO LIBRARY SYSTEM
SPECIFICATIONS
MEX-1HD
Model Name Using Similar Mechanism
NEW
CD Drive Mechanism Type
MG-550D-156
Optical Block Name
CDM-3021EBG
Optical Pick-up Name
DAX-21EG
AEP Model
UK Model
Hong Kong Model
Ver. 1.4 2007.08
9-874-167-05
Sony Corporation
2007H05-1
eVehicle Division
© 2007.08
Published by Sony Techno Create Corporation
CD Player section
Signal-to-noise ratio
90 dB
Frequency response
10 – 20,000 Hz
“MG Memory Stick” section
Signal-to-noise ratio
90 dB
Frequency response
10 – 20,000 Hz
Recording time (when using the 64MB “MagicGate
Memory Stick”)
Memory Stick”)
Approx. 60 min. (132kbps)
Approx. 80 min. (105kbps)
Approx. 80 min. (105kbps)
Recording format
Adaptive Transform
Acoustic Coding 3
(ATRAC3)
Acoustic Coding 3
(ATRAC3)
HDD section
Capacity 16 GB
Recording format
Recording format
Adaptive Transform
Acoustic Coding 3
(ATRAC3)
Acoustic Coding 3
(ATRAC3)
Frequency response
10 to 20,000 Hz
(single signal measurement)
(single signal measurement)
Tuner section
FM
Tuning range
87.5 – 108.0 MHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz/450 kHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
66 dB (stereo),
72 dB (mono)
72 dB (mono)
Harmonic distortion at 1 kHz
0.6 % (stereo),
0.3 % (mono)
0.3 % (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
MW/LW
Tuning range
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
LW: 153 – 279 kHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz/450 kHz
Sensitivity
MW: 30
µV
LW: 40
µV
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
(sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output
45 W
× 4 (at 4 ohms)
General
Outputs
Audio outputs (front/rear)
Subwoofer output (mono)
Power aerial relay control
terminal
Power amplifier control
terminal
Subwoofer output (mono)
Power aerial relay control
terminal
Power amplifier control
terminal
Inputs
Telephone ATT control
terminal
Illumination control
terminal
AUX IN terminal
Aerial input terminal
terminal
Illumination control
terminal
AUX IN terminal
Aerial input terminal
Tone controls
Bass
±8 dB at 100 Hz
Treble
±8 dB at 10 kHz
Loudness
+8 dB at 100 Hz
+2 dB at 10 kHz
+2 dB at 10 kHz
Power requirements
12 V DC car battery
(negative earth)
(negative earth)
Dimensions
Approx. 178
× 50 × 182 mm
(w/h/d)
Mounting dimensions
Approx. 182
× 53 × 161 mm
(w/h/d)
Mass
Approx. 2.0 kg
Supplied accessories
Parts for installation and
connections (1 set)
Front panel case (1)
Cleaning cloth (1)
Digital I/O cable (1)
CDDB Install CD-ROM (1)
connections (1 set)
Front panel case (1)
Cleaning cloth (1)
Digital I/O cable (1)
CDDB Install CD-ROM (1)
Note
This unit cannot be connected to a digital preamplifier
or an equaliser.
This unit cannot be connected to a digital preamplifier
or an equaliser.
Design and specifications are subject to change
without notice.
without notice.
2
MEX-1HD
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 PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
This label is located on the bottom of the
chassis.
chassis.
CAUTION
INVISIBLE
DO NOT STARE INTO BEAM OR
VIEW DIRECTLY WITH OPTICAL INSTRUMENTS
LASER RADIATION WHEN OPEN
This label is located on the drive unit’s internal
chassis.
chassis.
Notes on CD-Rs (recordable CDs)/CD-
RWs (rewritable CDs)
RWs (rewritable CDs)
This unit can play the following discs:
• Some CD-Rs/CD-RWs (depending on the
equipment used for its recording or the
condition of the disc) may not play on this unit.
condition of the disc) may not play on this unit.
• You cannot play a CD-R/CD-RW that is not
finalized*.
• You can play MP3 files recorded on CD-
ROMs, CD-Rs, and CD-RWs.
• A CD-R/CD-RW to which a session can be
added can be played.
• Contents on audio CD-Rs/CD-RWs cannot be
recorded onto the HDD of this unit due to
copyright protection.
copyright protection.
*
A process necessary for a recorded CD-R/CD-RW
disc to be played on the audio CD player.
disc to be played on the audio CD player.
Type of discs
Label on the disc
Audio CD
MP3 files
Notes
• The recorded music is limited to private use only.
• The recorded music is limited to private use only.
Use of the music beyond this limit requires
permission of the copyright holders.
permission of the copyright holders.
• Sony is not responsible for music files that are not
saved on this unit due to unsuccessful recording
from CD or music downloading.
from CD or music downloading.
• Sony is not responsible for any files that are
damaged or erased from the hard disc.
3
MEX-1HD
1.
SERVICING NOTES
................................................
5
2.
GENERAL
Location of Controls .......................................................
7
3.
DISASSEMBLY
3-1. Disassembly Flow ........................................................... 10
3-2. Cover ............................................................................... 11
3-3. Base Panel Assy .............................................................. 11
3-4. Sub Panel (CD) Assy ...................................................... 12
3-5. Mechanism Deck (MG-550D-156) ................................ 12
3-6. Motor Block Assy, Cam Block Assy .............................. 13
3-7. Motor Assy (Front Panel Open/Close) (M601),
3-2. Cover ............................................................................... 11
3-3. Base Panel Assy .............................................................. 11
3-4. Sub Panel (CD) Assy ...................................................... 12
3-5. Mechanism Deck (MG-550D-156) ................................ 12
3-6. Motor Block Assy, Cam Block Assy .............................. 13
3-7. Motor Assy (Front Panel Open/Close) (M601),
SWITCH Board ............................................................... 13
3-8. MAIN Board, POWER Board ........................................ 14
3-9. Hard Disk Drive (2.5 inch) Unit ..................................... 15
3-10. SUB Board ...................................................................... 15
3-11. Heat Sink, DC Fan (M501) ............................................. 16
3-12. Belt (L), LE Motor Assy (Tray Open/Close) (M103) .... 16
3-13. Tray (UD) Assy ............................................................... 17
3-14. OP Assy (CDM-3021EBG) ............................................ 17
3-15. SERVO Board ................................................................. 18
3-9. Hard Disk Drive (2.5 inch) Unit ..................................... 15
3-10. SUB Board ...................................................................... 15
3-11. Heat Sink, DC Fan (M501) ............................................. 16
3-12. Belt (L), LE Motor Assy (Tray Open/Close) (M103) .... 16
3-13. Tray (UD) Assy ............................................................... 17
3-14. OP Assy (CDM-3021EBG) ............................................ 17
3-15. SERVO Board ................................................................. 18
4.
ASSEMBLY
4-1. Assembly Flow ................................................................ 19
4-2. Motor Block Assy ........................................................... 19
4-3. Cam Block Assy .............................................................. 20
4-4. Phase Alignment of Motor Block Assy and
4-2. Motor Block Assy ........................................................... 19
4-3. Cam Block Assy .............................................................. 20
4-4. Phase Alignment of Motor Block Assy and
Cam Block Assy .............................................................. 20
5.
TEST MODE
.............................................................. 21
6.
DIAGRAMS
6-1. Block Diagram
– SERVO, HD/MS/USB INTERFACE Section – .......... 27
6-2. Block Diagram – CPU, DISPLAY Section – ................ 28
6-3. Block Diagram – AUDIO, SYSTEM Section – ............ 29
6-4. Block Diagram – POWER SUPPLY Section – ............. 30
6-5. Note for Printed Wiring Boards and
6-3. Block Diagram – AUDIO, SYSTEM Section – ............ 29
6-4. Block Diagram – POWER SUPPLY Section – ............. 30
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 31
6-6. Printed Wiring Board – SERVO Board (Side A) – ....... 32
6-7. Printed Wiring Board – SERVO Board (Side B) – ....... 33
6-8. Schematic Diagram – SERVO Board (1/3) – ................ 34
6-9. Schematic Diagram – SERVO Board (2/3) – ................ 35
6-10. Schematic Diagram – SERVO Board (3/3) – ................ 36
6-11. Printed Wiring Board – MAIN Board (Side A) – ......... 38
6-12. Printed Wiring Board – MAIN Board (Side B) – ......... 39
6-13. Schematic Diagram – MAIN Board (1/9) – ................... 40
6-14. Schematic Diagram – MAIN Board (2/9) – ................... 41
6-15. Schematic Diagram – MAIN Board (3/9) – ................... 42
6-16. Schematic Diagram – MAIN Board (4/9) – ................... 43
6-17. Schematic Diagram – MAIN Board (5/9) – ................... 44
6-18. Schematic Diagram – MAIN Board (6/9) – ................... 45
6-19. Schematic Diagram – MAIN Board (7/9) – ................... 46
6-20. Schematic Diagram – MAIN Board (8/9) – ................... 47
6-21. Schematic Diagram – MAIN Board (9/9) – ................... 48
6-22. Schematic Diagram – SUB Board (1/5) – ...................... 49
6-23. Schematic Diagram – SUB (2/5)/SWITCH Boards – .... 50
6-24. Schematic Diagram – SUB Board (3/5) – ...................... 51
6-25. Schematic Diagram – SUB Board (4/5) – ...................... 52
6-26. Schematic Diagram – SUB Board (5/5) – ...................... 53
6-7. Printed Wiring Board – SERVO Board (Side B) – ....... 33
6-8. Schematic Diagram – SERVO Board (1/3) – ................ 34
6-9. Schematic Diagram – SERVO Board (2/3) – ................ 35
6-10. Schematic Diagram – SERVO Board (3/3) – ................ 36
6-11. Printed Wiring Board – MAIN Board (Side A) – ......... 38
6-12. Printed Wiring Board – MAIN Board (Side B) – ......... 39
6-13. Schematic Diagram – MAIN Board (1/9) – ................... 40
6-14. Schematic Diagram – MAIN Board (2/9) – ................... 41
6-15. Schematic Diagram – MAIN Board (3/9) – ................... 42
6-16. Schematic Diagram – MAIN Board (4/9) – ................... 43
6-17. Schematic Diagram – MAIN Board (5/9) – ................... 44
6-18. Schematic Diagram – MAIN Board (6/9) – ................... 45
6-19. Schematic Diagram – MAIN Board (7/9) – ................... 46
6-20. Schematic Diagram – MAIN Board (8/9) – ................... 47
6-21. Schematic Diagram – MAIN Board (9/9) – ................... 48
6-22. Schematic Diagram – SUB Board (1/5) – ...................... 49
6-23. Schematic Diagram – SUB (2/5)/SWITCH Boards – .... 50
6-24. Schematic Diagram – SUB Board (3/5) – ...................... 51
6-25. Schematic Diagram – SUB Board (4/5) – ...................... 52
6-26. Schematic Diagram – SUB Board (5/5) – ...................... 53
6-27. Printed Wiring Boards
– SUB (Component Side)/Switch Boards – ................... 54
6-28. Printed Wiring Board
– SUB Board (Conductor Side) – ................................... 55
6-29. Printed Wiring Board – POWER Board – ..................... 56
6-30. Schematic Diagram – POWER Board – ........................ 57
6-31. Printed Wiring Board – DISPLAY Board – .................. 58
6-32. Schematic Diagram – DISPLAY Board – ..................... 59
6-33. IC Pin Function Description ........................................... 69
6-30. Schematic Diagram – POWER Board – ........................ 57
6-31. Printed Wiring Board – DISPLAY Board – .................. 58
6-32. Schematic Diagram – DISPLAY Board – ..................... 59
6-33. IC Pin Function Description ........................................... 69
7.
EXPLODED VIEWS
7-1. Cover Section ................................................................. 97
7-2. Front Panel Section ........................................................ 98
7-3. ARM Section .................................................................. 99
7-4. Hard Disk, POWER Board Section ............................... 100
7-5. MAIN Board Section ..................................................... 101
7-6. Chassis Section .............................................................. 102
7-7. SUB Board Section ........................................................ 103
7-8. Mechanism Deck Section (MG-550D-156) .................. 104
7-2. Front Panel Section ........................................................ 98
7-3. ARM Section .................................................................. 99
7-4. Hard Disk, POWER Board Section ............................... 100
7-5. MAIN Board Section ..................................................... 101
7-6. Chassis Section .............................................................. 102
7-7. SUB Board Section ........................................................ 103
7-8. Mechanism Deck Section (MG-550D-156) .................. 104
8.
ELECTRICAL PARTS LIST
.............................. 105
TABLE OF CONTENTS
4
MEX-1HD
Notes on MP3 files
MP3 (MPEG 1 Audio Layer-3) is a standard
technology and format for compressing a sound
sequence. The file is compressed to about 1/10 of
its original size. Sounds outside the range of
human hearing are compressed while the sounds
we can hear are not compressed.
technology and format for compressing a sound
sequence. The file is compressed to about 1/10 of
its original size. Sounds outside the range of
human hearing are compressed while the sounds
we can hear are not compressed.
Notes on discs
You can play MP3 files recorded on CD-ROMs,
CD-Rs, and CD-RWs.
The disc must be in the ISO 9660*
CD-Rs, and CD-RWs.
The disc must be in the ISO 9660*
1
level 1 or
level 2 format, or Joliet or Romeo in the
expansion format.
You can use a disc recorded in Multi Session*
expansion format.
You can use a disc recorded in Multi Session*
2
.
*
1
ISO 9660 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 8 characters in the name, no
more than 3 characters in the extension
“.MP3”) and in capital letters. Folder names
can be no longer than 8 characters. There can
be no more than 8 nested folder levels. Level
2 specifications allow file names up to 31
characters long.
Each folder can have up to 8 trees.
For Joliet or Romeo in the expansion format,
make sure of the contents of the writing
software, etc.
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 8 characters in the name, no
more than 3 characters in the extension
“.MP3”) and in capital letters. Folder names
can be no longer than 8 characters. There can
be no more than 8 nested folder levels. Level
2 specifications allow file names up to 31
characters long.
Each folder can have up to 8 trees.
For Joliet or Romeo in the expansion format,
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.
CD-Extra: The format which records audio
(audio CD data) as tracks on session 1, and
records data as tracks on session 2.
Mixed CD: In this format, data is recorded as
track, and audio (audio CD data) is recorded
as track 2.
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.
CD-Extra: The format which records audio
(audio CD data) as tracks on session 1, and
records data as tracks on session 2.
Mixed CD: In this format, data is recorded as
track, and audio (audio CD data) is recorded
as track 2.
Notes
• With formats other than ISO 9660 level 1 and level 2,
• With formats other than ISO 9660 level 1 and level 2,
folder names or file names may not be displayed
correctly.
correctly.
• When naming, be sure to add the file extension
“.MP3” to the file name.
• If you put the extension “.MP3” to a file other than
MP3, the unit cannot recognise the file properly and
will generate random noise that could damage your
speakers.
will generate random noise that could damage your
speakers.
• The following discs take a longer time to start
playback.
– a disc recorded with a complicated tree structure.
– a disc recorded in Multi Session.
– a disc to which data can be added.
– a disc recorded with a complicated tree structure.
– a disc recorded in Multi Session.
– a disc to which data can be added.
Cautions when playing a disc that is recorded in
Multi Session
• When the first track of the first session is audio CD
Multi Session
• When the first track of the first session is audio CD
data:
Only audio CD data is played back.
Only audio CD data is played back.
• When the first track of the first session is not audio
CD data:
– If an MP3 file is in the disc, only MP3 file(s) play
– If an MP3 file is in the disc, only MP3 file(s) play
back and other data is skipped. (Audio CD data is
not recognised.)
not recognised.)
– If no MP3 file is in the disc, “NO Music” is
displayed and nothing is played back. (Audio CD
data is not recognised.)
data is not recognised.)
