Read Sony DSX-M50BT Service Manual online
SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
DSX-M50BT
SPECIFICATIONS
9-893-910-01
2013K33-1
©
2013.11
US Model
Canadian Model
Ver. 1.0 2013.11
• This model is not equipped with a mechanism deck.
FOR THE CUSTOMERS IN THE USA. NOT
APPLICABLE IN CANADA, INCLUDING IN
THE PROVINCE OF QUEBEC.
APPLICABLE IN CANADA, INCLUDING IN
THE PROVINCE OF QUEBEC.
POUR LES CLIENTS AUX ÉTATS-UNIS. NON
APPLICABLE AU CANADA, Y COMPRIS LA
PROVINCE DE QUÉBEC.
APPLICABLE AU CANADA, Y COMPRIS LA
PROVINCE DE QUÉBEC.
AUDIO POWER SPECIFICATIONS
CEA2006 Standard
Power Output: 17 Watts RMS × 4 at
4 Ohms < 1% THD+N
SN Ratio: 80 dBA
(reference: 1 Watt into 4 Ohms)
Power Output: 17 Watts RMS × 4 at
4 Ohms < 1% THD+N
SN Ratio: 80 dBA
(reference: 1 Watt into 4 Ohms)
Tuner section
FM
Tuning range:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 108.0 MHz (at 100 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
87.5 – 108.0 MHz (at 100 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
USB Player section
Interface: USB (Full-speed)
Maximum current: 1 A
The maximum number of recognizable data:
Folders (albums): 128
Files (tracks) per folder: 512
Files (tracks) per folder: 512
Corresponding codec:
MP3 (.mp3) and WMA (.wma)
Wireless Communication
Communication System:
BLUETOOTH Standard version 2.1 + EDR
Output:
BLUETOOTH Standard Power Class 2
(Max. +4 dBm)
(Max. +4 dBm)
Maximum communication range:
Line of sight approx. 10 m (33 ft)*
1
FM tuning step:
50 kHz/100 kHz/200 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 80 dB (stereo)
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz
AM
Tuning range:
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
530 – 1,710 kHz (at 10 kHz step)
AM tuning step:
9 kHz/10 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency:
9,124.5 kHz or 9,115.5 kHz/4.5 kHz (at 9 kHz
step)
9,115 kHz or 9,125 kHz/5 kHz (at 10 kHz step)
step)
9,115 kHz or 9,125 kHz/5 kHz (at 10 kHz step)
Sensitivity: 26 μV
Frequency band:
2.4 GHz band (2.4000 – 2.4835 GHz)
Modulation method: FHSS
Compatible BLUETOOTH Profiles*
2
:
A2DP (Advanced Audio Distribution Profile)
1.2
AVRCP (Audio Video Remote Control Profile)
1.3
HFP (Handsfree Profile) 1.5
PBAP (Phone Book Access Profile)
1.2
AVRCP (Audio Video Remote Control Profile)
1.3
HFP (Handsfree Profile) 1.5
PBAP (Phone Book Access Profile)
*1 The actual range will vary depending on factors
such as obstacles between devices, magnetic
fields around a microwave oven, static
electricity, reception sensitivity, antenna
(aerial)’s performance, operating system,
software application, etc.
fields around a microwave oven, static
electricity, reception sensitivity, antenna
(aerial)’s performance, operating system,
software application, etc.
*2 BLUETOOTH standard profiles indicate the
purpose of BLUETOOTH communication
between devices.
between devices.
Power amplifier section
Output: Speaker outputs
Speaker impedance: 4 – 8 ohms
Maximum power output: 55 W × 4 (at 4 ohms)
General
Outputs:
Audio outputs terminal (front, rear)
Power antenna (aerial)/Power amplifier
control terminal (REM OUT)
Power antenna (aerial)/Power amplifier
control terminal (REM OUT)
Inputs:
Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
USB port
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
USB port
Power requirements: 12 V DC boat battery
(negative ground (earth))
Dimensions:
Approx. 178 mm × 50 mm × 120 mm
(7
(7
1
/
8
in × 2 in × 4
7
/
8
in) (w/h/d)
Mounting dimensions:
Approx. 182 mm × 53 mm × 103 mm
(7
(7
1
/
4
in × 2
1
/
8
in × 4
1
/
8
in) (w/h/d)
Mass: Approx. 0.7 kg (1 lb 9 oz)
Package contents:
Remote commander (1): RM-X231
Parts for installation and connections (1 set)
Parts for installation and connections (1 set)
Design and specifications are subject to
change without notice.
change without notice.
FM/AM DIGITAL MEDIA PLAYER
DSX-M50BT
2
1.
SERVICING NOTES
.............................................
3
2. GENERAL
..................................................................
6
3. DISASSEMBLY
3-1. Disassembly
Flow
........................................................... 8
3-2. Fuse (Blade Type) (Auto Fuse) (10A/32V) (FU101),
Cover ...............................................................................
8
3-3. Sub Panel Block .............................................................. 9
3-4. MAIN Board (with BT Board) ....................................... 10
3-5. Antenna
3-4. MAIN Board (with BT Board) ....................................... 10
3-5. Antenna
BT
..................................................................... 10
4.
TEST MODE
............................................................ 11
5. DIAGRAMS
5-1. Block Diagram - MAIN Section - ................................... 13
5-2. Block
5-2. Block
Diagram
- DISPLAY/POWER SUPPLY Section - ........................ 14
5-3. Printed Wiring Board - MAIN Section (1/2) - ................ 16
5-4. Printed Wiring Boards - MAIN Section (2/2) - .............. 17
5-5. Schematic Diagram - MAIN Section (1/3) - ................... 18
5-6. Schematic Diagram - MAIN Section (2/3) - ................... 19
5-7. Schematic Diagram - MAIN Section (3/3) - ................... 20
5-4. Printed Wiring Boards - MAIN Section (2/2) - .............. 17
5-5. Schematic Diagram - MAIN Section (1/3) - ................... 18
5-6. Schematic Diagram - MAIN Section (2/3) - ................... 19
5-7. Schematic Diagram - MAIN Section (3/3) - ................... 20
6.
EXPLODED VIEW
................................................. 27
7.
ELECTRICAL PARTS LIST
.............................. 28
Accessories are given in the last of the electrical parts list.
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.
aged by heat.
The Bluetooth® word mark and logos are owned
by the Bluetooth SIG, Inc. and any use of such
marks by Sony Corporation is under license.
Other trademarks and trade names are those of
their respective owners.
by the Bluetooth SIG, Inc. and any use of such
marks by Sony Corporation is under license.
Other trademarks and trade names are those of
their respective owners.
Windows Media is either a registered trademark
or trademark of Microsoft Corporation in the
United States and/or other countries.
or trademark of Microsoft Corporation in the
United States and/or other countries.
This product is protected by certain intellectual
property rights of Microsoft Corporation. Use or
distribution of such technology outside of this
product is prohibited without a license from
Microsoft or an authorized Microsoft subsidiary.
property rights of Microsoft Corporation. Use or
distribution of such technology outside of this
product is prohibited without a license from
Microsoft or an authorized Microsoft subsidiary.
iPhone, iPod, iPod classic, iPod nano, and iPod
touch are trademarks of Apple Inc., registered in
the U.S. and other countries.
touch are trademarks of Apple Inc., registered in
the U.S. and other countries.
MPEG Layer-3 audio coding technology and
patents licensed from Fraunhofer IIS and
Thomson.
patents licensed from Fraunhofer IIS and
Thomson.
Android is a trademark of Google Inc. Use of this
trademark is subject to Google Permissions.
trademark is subject to Google Permissions.
Copyrights
DSX-M50BT
3
Maintenance
Replacing the lithium battery of the
remote commander
remote commander
When the battery becomes weak, the range
of the remote commander becomes shorter.
Replace the battery with a new CR2025
lithium battery. Use of any other battery may
present a risk of fire or explosion.
of the remote commander becomes shorter.
Replace the battery with a new CR2025
lithium battery. Use of any other battery may
present a risk of fire or explosion.
Notes on the lithium battery
ˎ Keep the lithium battery out of the reach of
ˎ Keep the lithium battery out of the reach of
children. Should the battery be swallowed,
immediately consult a doctor.
immediately consult a doctor.
ˎ Wipe the battery with a dry cloth to assure a good
contact.
ˎ Be sure to observe the correct polarity when
installing the battery.
ˎ Do not hold the battery with metallic tweezers,
otherwise a short-circuit may occur.
Cleaning the connectors
The unit may not function properly if the
connectors between the unit and the front
panel are not clean. In order to prevent this,
detach the front panel (page 9) and clean the
connectors with a cotton swab. Do not apply
too much force. Otherwise, the connectors
may be damaged.
connectors between the unit and the front
panel are not clean. In order to prevent this,
detach the front panel (page 9) and clean the
connectors with a cotton swab. Do not apply
too much force. Otherwise, the connectors
may be damaged.
WARNING
Battery may explode if mistreated.
Do not recharge, disassemble, or dispose
of in fire.
Do not recharge, disassemble, or dispose
of in fire.
+ side up
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
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
• 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.
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
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.
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.
also be added to ordinary solder.
ABOUT CHECKING THE OPERATION
When checking the operation of this unit, connect a USB device
to this unit.
Refer to the support site written in the operating instruction for the
details about the compatibility of a USB device.
When checking the operation of this unit, connect a USB device
to this unit.
Refer to the support site written in the operating instruction for the
details about the compatibility of a USB device.
NOTE OF REPLACING THE KEY BOARD
When the KEY board is defective, exchange the FRONT PANEL
ASSY (Ref. No. FP1).
When the KEY board is defective, exchange the FRONT PANEL
ASSY (Ref. No. FP1).
NOTE OF REPLACING THE BT BOARD
When the BT board is defective, exchange the complete mounted
board.
When the BT board is defective, exchange the complete mounted
board.
NOTE OF REPLACING THE IC603 ON THE MAIN BOARD
IC603 on the MAIN board cannot exchange with single. When this
part is damaged, exchange the complete mounted board.
IC603 on the MAIN board cannot exchange with single. When this
part is damaged, exchange the complete mounted board.
IMPORTANT NOTE OF “INITIALIZING”
The purpose of “Bluetooth Initialize” is to initialize the Bluetooth
connection history (HF/Audio Streaming). (To delete the device
information for the devices that you connected to when searching,
etc.)
When the BT board or MAIN board (including BT board) are re-
placed, it is necessary to initialize this unit.
Refer to the following, initialize this unit.
The purpose of “Bluetooth Initialize” is to initialize the Bluetooth
connection history (HF/Audio Streaming). (To delete the device
information for the devices that you connected to when searching,
etc.)
When the BT board or MAIN board (including BT board) are re-
placed, it is necessary to initialize this unit.
Refer to the following, initialize this unit.
Note: Phonebook data and dialed/received call history can be deleted by
executing “Bluetooth Initialize.”
Procedure:
1. In the state of source off (the clock is displayed), press and
1. In the state of source off (the clock is displayed), press and
hold the [PUSH ENTER/SELECT/ ] button.
2. Rotate the control dial, and select the “BT INIT”.
3. Press the [PUSH ENTER/SELECT/ ] button, and the mes-
3. Press the [PUSH ENTER/SELECT/ ] button, and the mes-
sage “INIT-NO” is displayed on the liquid crystal display.
4. Rotate the control dial clockwise, and the message “INIT-
YES” is displayed on the liquid crystal display.
5. Press the [PUSH ENTER/SELECT/ ] button, and the mes-
sage “INITIAL” is blinked on the liquid crystal display.
6. When “Bluetooth Initialize” is completed, the message
“COMPLETE” is displayed on the liquid crystal display for a
moment.
moment.
7. Press the [
/MODE] button, and return to the state of source
off (the clock is displayed) mode.
Notes
ˎ For safety, turn off the ignition before cleaning
ˎ For safety, turn off the ignition before cleaning
the connectors, and remove the key from the
ignition switch.
ignition switch.
ˎ Never touch the connectors directly with your
fingers or with any metal device.
Canceling the DEMO Mode
You can cancel the demonstration display
which appears while this unit is turned off.
which appears while this unit is turned off.
1
Press and hold SELECT.
The setup display appears.
2
Rotate the control dial to select
[DEMO], then press it.
[DEMO], then press it.
3
Rotate the control dial to select
[DEMO-OFF], then press it.
[DEMO-OFF], then press it.
The setting is complete.
4
Press
(back).
The display returns to normal reception/
play mode.
play mode.
and clean the
DSX-M50BT
4
NOTE OF REPLACING THE COMPLETE MAIN BOARD
OR SYSTEM CONTROLLER (IC101)
When the complete MAIN board or system controller (IC101) is
replaced, the destination setting is necessary.
OR SYSTEM CONTROLLER (IC101)
When the complete MAIN board or system controller (IC101) is
replaced, the destination setting is necessary.
1. Destination
Setting
Set destination according to the procedure below.
1-1. Setting the Destination Code
1. In the state of source off (the clock is displayed), enter the
1. In the state of source off (the clock is displayed), enter the
test mode by pressing the buttons on the remote commander in
order of the [4]
order of the [4]
t [5] t [6] (press only the [6] button for two
seconds).
2. In the state in which the system controller version is displayed
on the liquid crystal display (refer to following fi gure), enter
the destination setting mode by pressing the buttons on the
main unit in order of the [SEEK+
the destination setting mode by pressing the buttons on the
main unit in order of the [SEEK+
M >
]
t [SEEK–
.
m
]
t [PUSH ENTER/SELECT/ ].
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
SHUF
System controller version
3. Input the alphanumeric character of 8 digits of “F XXXXXX”
displayed on the liquid crystal display, and execute the destina-
tion setting.
tion setting.
Note: Refer to following “1-3. Entering the Destination Code” for opera-
tion method.
4. The resetting operation is executed by pressing the [SOURCE
OFF] button for 1 second after the setting ends, and the unit
returns to the normal condition.
1-2. Display in Destination Setting Mode
Destination code
8 digit
OP5 OP4 OP3 OP2 OP1 OP0
SHUF
1-3. Entering the Destination Code
•
•
Method of operation by main unit
1. Rotate the control dial, and select the alphanumeric character
of “0 to F”.
2. The digit advances by pressing the [PUSH ENTER/SELECT/
] or [SEEK+
M >
] button.
The digit returns by pressing the [ /MODE] or [SEEK–
.
m
] button.
3. The setting is completed by pressing the [PUSH ENTER/SE-
LECT/ ] button, and the initialization operation is done.
•
Method of operation by remote commander
1. Press
the
[V] or [v] button, and select the alphanumeric char-
acter of “0 to F”.
2. The digit advances by pressing the [b] button.
The digit returns by pressing the [B] button.
3. The setting is completed by pressing the [ENTER] button, and
the initialization operation is done.
1-4. Destination Code
Destination
OP5
OP4
OP3
OP2
OP1
OP0
US, Canadian
0
0
4
2
2
0
2. Confi rmation After Destination Setting
Execute the following operation after completing the destination
setting, and confi rm a correct destination was set.
Execute the following operation after completing the destination
setting, and confi rm a correct destination was set.
Destination setting checking method:
1. In the state of source off (the clock is displayed on the liquid
1. In the state of source off (the clock is displayed on the liquid
crystal display), enter the test mode by pressing the buttons on
the remote commander in order of the [4]
the remote commander in order of the [4]
t [5] t [6] (press
only the [6] button for two seconds).
2. In the state in which the system controller version is displayed
on the liquid crystal display (refer to following fi gure), enter
the destination setting value display mode by pressing the [
the destination setting value display mode by pressing the [
SCRL DSPL] button on the main unit three times.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
SHUF
System controller version
3. Confi rm the alphanumeric character of 8 digits of in liquid
crystal display is an value correctly input.
(Displayed characters/values in the following fi gure are ex-
ample)
ample)
Destination code
8 digit
OP5 OP4 OP3 OP2 OP1 OP0
4. The resetting operation is executed by pressing the [SOURCE
OFF] button on the main unit for 1 second after the confi rm-
ing ends, and the unit returns to the normal condition.