NW-E10, NW-E7 - Sony Audio Service Manual (repair manual)

Model
NW-E10 NW-E7
Pages
25
Size
2.03 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
nw-e10-nw-e7.pdf
Date

View Sony NW-E10 / NW-E7 Service Manual online

NW-E7/E10
SERVICE MANUAL
NETWORK WALKMAN
SPECIFICATIONS
AEP Model
UK Model
E Model
Recording time
NW-E7: Approx. 60 min. (132kbps)
Approx. 80 min. (105kbps)
Approx. 120 min. (66kbps)
NW-E10: Approx. 120min. (132kbps)
Approx. 160 min. (105kbps)
Approx. 240 min. (66kbps)
Sampling frequency response
44.1kHz
Recording format
ATRAC3
MP3; Bit rate*: 32–256 kbps
Sampling rate: 32/44.1/48 kHz
* Variable bit rate files are not supported. Bit rate
higher than 128 kbps is not guaranteed when
you select the sampling rate 32 or 48 kHz.
Frequency response
20 to 20,000 Hz (single signal measurement)
Output
Earphone: stereo mini-jack
Signal-to-noise ratio (S/N)
More than 80dB (excluding 66 kbps)
Dynamic range
More than 85dB (excluding 66 kbps)
Operating temperature
5
°C to 35°C (-41°F to 95°F)
Power source
• DC IN 1.2V (internal nickel metal hydride battery)
• DC IN 4.5V (supplied AC power adaptor)
Battery life
Approx. 11 hours
Dimensions (approx.)
27.8 
× 92.4 × 13.3mm (1 
1
/
8
 
× 3 
3
/
 
× 
17
/
32
  inches)
(w/h/d, projecting parts not included)
30.9 
× 92.4 × 14.7mm (1 
1
/
4
 
× 3 
3
/
 
× 
19
/
32
  inches)
(including projecting parts)
Mass (approx.)
55g (1.9 oz) (battery included)
Memory capacity
NW-E7: 64MB (including the system software)
NW-E10: 128MB (including the system software)
Supplied accessories
USB cradle (1)
Earphones (1)
USB cable (1)
AC power adaptor (for the supplied USB cradle) (1)
Carrying pouch (1)
CD-ROM (OpenMG Jukebox installation disc) (1)
NW-E7/E10 Operating Instructions (1)
OpenMG Jukebox Operating Instructions (1)
Design and specifications are subject to change without notice.
Ver 1.3  2002.11
9-873-343-04
2002K0200-1
© 2002.11
Photo : NW-E7
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
2
NW-E7/E10
Specifications ............................................................................... 1
1. SERVICING NOTES
....................................................... 3
2. GENERAL
.......................................................................... 9
3. DISASSEMBLY
3-1. Case ............................................................................... 11
3-2. Battery, Nickel Hydrogen ............................................. 12
3-3. Main Board ................................................................... 12
4. DIAGRAMS
4-1. Block Diagrams ............................................................ 13
4-2. Printed Wiring Boards (Main Section) ......................... 14
4-3. Schematic Diagram (Main Section (1/2)) ..................... 15
4-4. Schematic Diagram (Main Section (2/2)) ..................... 16
5. EXPLODED VIEW
5-1. Main Section ................................................................. 19
5-2. Case Section .................................................................. 20
6. ELECTRICAL PARTS LIST
....................................... 21
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.
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.
TABLE OF CONTENTS
• Replacement of TMS320DA150GGU120 (IC601) used in the set requires
a special tool.
z
  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
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.
z
  USABLE FORMAT
Use ISO9660 Level 1 format.
Ver 1.1  2002.01
3
NW-E7/E10
Ver 1.1  2002.01
SECTION 1
SERVICING NOTES
1-1. INTRODUCTION
This document describes the “operation check for inspection (Test mode)” and “adjustment after board replacement for repair”.
In performing these works, connect this set to the PC via a USB cable and use the following tool.
Tool List
1-2. BOARD REPAIR
1. In performing the work, the set should be in a complete state (all components assembled).
2. Install the “OpenMG Jukebox” and “WMP7 Plug-in” (CD-ROM) in the PC in advance.
3. Do not start up other applications in the PC.
4. This set has the Test mode, and various functions can be checked by using exclusive application (Service Tool) on the PC side.
5. Be sure to replace the MAIN board, if any part listed in Table 1-1 is faulty.
6. The data in Table 1-2 have been written to the MAIN board.
7. In repairing other than above parts, repair as usual.
Ref. No
1
Tool name
Service tool 9140 (FD)
Part code
J-2507-037-1
Application
Board check (Test mode) and readjustment after board replacement
Board name
MAIN board
Ref. No
IC601, IC602, IC603, IC901
Board name
MAIN board
Stored date
Music date, Equalizer initial values, CODEC programs, and ID/IK codes
Table 1-1
Table 1-2
1-3. OPERATION CHECK FOR INSPECTION (TEST MODE) PRECAUTIONS
1. Be sure to remove the battery from this set. (The power is supplied via USB cable) Operating the set in the Test mode with the battery
loaded could clear necessary information.
2. If operation check was performed for inspection, execute “Play Info Initialize” in qd (see page 7) to return respective functions to
initial positions (see Table 1-5 on page 7). In such a case, record current position of each function before executing “Play Info
Initialize” in qd , if necessary.
4
NW-E7/E10
Ver 1.1  2002.01
Work Procedure
Preparation:
1. Make sure that no battery is loaded in the set.
2. Start up the test mode “appllo_service. exe” of the service tool (J-2507-037-1 ) from the PC, and check that the following screen
    appears.
3. Connect PC to this set with a USB cable. Check that the block 1 of the following screen “open”, and “1PC” is displayed on
the LCD of the set. (The block 1 will “close” if the set is disconnected again) At this time, a sine wave is outputted from the
headphone. Also, the model name is displayed in the block qd of the screen.
Note: If the block 1 does not “open”, the circuits in MAIN board will be faulty. Audio signals are outputted from
    the reference signal in  the DSP of the set.
5
NW-E7/E10
Ver 1.1  2002.01
1. Audio Block Function Check
Clicking the UP or Down button in block 2 of the screen allows you to check with various output frequencies. Also, clicking the UP
or Down button in block 3 can check variations of volume. Clicking the L, Stereo, R, or Mute button in block 4 can change audio
output status.
2. Battery Threshold Value Check
Connect PC to this set with a USB cable, and the threshold values of battery residual capacity (voltage-converted values) written to the
set at the shipment are displayed in the block 5 .
Check that the displayed values are same as listed in Table 1-3.
Operational Description Of Test Mode
3. LCD Test
Clicking FULL (full lit), COL1 (column 1), COL2 (column 2), or OFF (full off) in block 8 results in all ON, column 1 ON, column 2
ON, or all OFF of the LCD on the set respectively.
4. CODEC Info Check
The CODEC programs and their versions written to the set can be checked. (block 9 )
The CODEC programs written to the set at the shipment are “MP3”, “ATRAC3”, and “WMA” and their versions are as listed below.
(Versions will vary if updated)
Capacity 1 
t2
1.25V
 368
Capacity 2 
t3
1.27V
 400
Capacity 3 
t4
1.29V
432
OFF
1.00V
 320
Condition
Voltage set value
Converted value (ref.)
Name
MP3
AT3
blank
blank
Program No.
 CODEC1
CODEC2
CODEC3
CODEC4
Version
80
80
0
0
6
NW-E7/E10
Ver 1.1  2002.01
5. Firmware Info Check
The DSP program version and the flash memory capacity can be checked. (blockq;)
The version at the shipment is as follows. (Versions will vary if updated)
6. Sub-CPU Info Check
The Sub-CPU program version can be checked. (block qa )
The version at the shipment is as follows. (Versions will vary if updated)
Version
19
7. Key Check
Click the block qs while pressing a key on the set, and “ON” is displayed in the block associated with the pressed key, so that the key
operation can be checked.
1-4. REQUIRED SYSTEM CONFIGURATION
• IBM 
®
 PC/AT 
®
 and compatibles
CPU: MMX • Pentium • 233 MHz and above (Pentium II 400 MHz and above recommended)
Hard disk drive space:20 MB and above (Free space is required, depending on the version of Windows 98 and the size of the audio
data you are using.)
RAM:64 MB and above
CD-ROM drive
Sound Board:Creative SoundBlaster 16 compatible
Default built-in USB port
• Operating system:The default installation of Windows
®
 98 English version (The product does not work on Windows 95/3.1 or
Windows
NT. Not assured trouble-free if you use an upgrade version from Windows 95/3.1 to Windows 98.)
• Display:SVGA (800 x 600 pixel)(supports High Color (16 bit) and above)
• Internet access
1-5. ACTION IF MAIN BOARD WAS REPLACED
If the MAIN board was replaced, perform “1. Execution of Play Info Initialize” in work procedure provided below.
When the MAIN board was replaced, the set status is as listed in Table 1-4.
Precautions
1. Do not disconnect the USB cable in the midway of work.
2. If the operation on the PC side is not accepted during work, disconnect the USB cable and close the “appollo_service. exe” file,
then restart from the beginning.
Board name
MAIN board
Set status after board replacement
Music data and music information data stored in the set are cleared and not restored.
Table 1-4
Model name
 Version
Flash memory size
NW-E7
104
64094208
NW-E10
104
 129564672
7
NW-E7/E10
Ver 1.1  2002.01
Operational Procedure
1.  Readjustment of battery voltage threshold value Readjust the voltage with the following procedure.
(1) Start up the service tool (J-2507-037-1) test mode “appollo_service.exe” on the PC and connect the main block to the PC using the
USB cable. The following screen will be displayed.
At this time the remaining battery setting voltage threshold value written into the circuit board will be displayed on block 5.
(2) Provide the regulation setting voltage in table 5 from a DC regulated power supply to the battery terminal.
Next, when block 6 is clicked, the conversion value (threshold value) of the voltage value provided will be displayed.
Clicking block 7 in this condition will write a new conversion value (threshold value) to block 5’s “AD Level”.
(3) Provide the regulation setting voltage and write the conversion value (threshold value) for each step in table 1-5.
Capacity 1 
t2
1.25V
 368
Capacity 2 
t3
1.27V
 400
Capacity 3 
t4
1.29V
432
OFF
1.00V
320
Condition
Voltage set value
Converted value (ref.)
Table 1-5
Caution: The threshold value (the conversion value corresponding to the voltage value) will be different for each set.
Precautions:
1. Apply a voltage accuracy of within 
±
0.01V with minimum ripple for the voltage of DC regulated power supply.
2. Use a proofed (calibrated) measuring instrument to measure the voltage applied.
3. Do not apply solder directly on the battery terminal when applying voltage to the battery terminal. Use clips, etc.,
to connect to the battery terminal.
8
NW-E7/E10
Ver 1.1  2002.01
Work procedure
2. Execution of Play Info Initialize
If the MAIN board was replaced for repair, execute “Play Info Initialize” in block qd to return respective functions to initial positions
(see Table 1-6).
Note: In executing the “Play Info Initialize”, set the slide switches to the following positions.
AVLS switch ..... NORM
HOLD switch .... OFF
3. Check after Work
(1) After work, check that the set operates normally through the operation in 1-3. “Operation Check for Inspection (Test Mode)” (see
page 3).
(2) Make sure that the check-out and check-in can be made using the PC applications “OpenMG Jukebox” (CODEC programs “MP3”
and “ATRAC3”) and “Windows Media Player 7” (CODEC program “WMA”). Also, make sure that the checked out data can be
played normally.
Note: Do not start up the “OpenMG Jukebox” and the “Windows Media Player 7” simultaneously.
(3) For an installation and acquisition method of “Windows Media Player 7” (CODEC program “WMA”), refer to the following
instruction.
Table 1-6
Position
Head of first music
25
OFF
OFF
OFF
Function
 Play position
VOL level
MEGA BASS
AVLS
PLAY MODE
3
NW-E7/E10
SECTION 2
GENERAL
LOCATION AND FUNCTION OF CONTROLS
This section is extracted from
instruction manual.
(front)
(rear)
1 i (Headphones/earphones) jack
2 Display
3 PLAY MODE button
4 Jog lever
5 VOLUME+/– button
6 MEGA BASS/AVLS button
7 Access lamp
8 HOLD switch
9 Strap hole for attaching the strap
0 Reset button
qa Connection part for the USB cradle
1
2
3
5
6
7
8
9
0
4
  
qa
4
NW-E7/E10
8
USB cradle
Display
Access lamp
Basic Operations
Transferring songs from the computer to
Network Walkman (Check-out)
1
    Install the supplied OpenMG Jukebox software and import digital audio files to
OpenMG Jukebox.
          For details, refer to the OpenMG Jukebox operating instructions.
Note
Before connecting the player to your computer for the first time, be sure to install "OpenMG Jukebox"
software and NW-E7/E10 driver from the supplied CD-ROM to your computer.
If you have already installed "OpenMG Jukebox" software, you also need to install NW-E7/E10 driver before
connecting the player to your computer.
2
    Connect Network Walkman to your computer.
3 Connect Network Walkman to your
computer.
Connect the small connector of the supplied
USB cable into the USB jack on the USB
cradle, then the large connector to the USB
jack of your computer.
“PC” appears in the display, and the access
lamp flashes to confirm access to the
computer.
1Attach your Network Walkman to the USB cradle.
2 Connect the AC power adaptor*.
Connect the supplied AC power adaptor to
an AC wall outlet first, then to the DC IN
jack on the USB cradle.
     
* You can use the player by only connecting the
dedicated USB cable, but the battery is not be
charged.
Note
Be sure to attach the player to the
arrow direction as illustrated below.
USB cable
(supplied)
to 
to 
USB cradle
AC power adaptor
(supplied)
to AC
wall outlet
to DC IN
9
Basic Operations
Notes
• Do not disconnect the USB cable or remove the player from the USB cradle during the access lamp is flashing.
This may cause the data being transferred to be broken.
• Do not connect more than two USB devices to your computer. Normal operation will not be guaranteed.
• Use of this player with a USB hub or a USB extension cable is not guaranteed.
• A malfunction may occur depending on the USB devices connected at any one time.
• When connecting Network Walkman to your computer for the first time, the USB driver Installer window
appears. Please follow the instructions in the Installer window.
• You cannot operate the player while it is connected to a computer.
If you place the player on the USB cradle connected to a computer during playback, playback stops and "PC"
appears on the display.
• Even if you connect the player to a computer, it is impossible to browse the contents of the built-in memory
of the player using the Windows Explorer.
3
Transfer the music file to Network Walkman (Check-out).
For details on how to operate, refer to the OpenMG Jukebox Operating Instructions.
Tip
To transfer the song back to the computer (check-in), refer to the OpenMG Jukebox software instruction
manual or the online help.
Note on playing back time-limited music
(timeout contents)
Some music data distributed via the Internet (EMD service) have playback time restriction.
When you playback a song with playback time restriction, the timeout icon (page 11) goes on.
If you try to playback a song whose playback period is already expired, the timeout icon flashes
and playback of the next song begins.
We recommended you to check-in or delete the expired song in the player to the computer using
the OpenMG Jukebox software.
OpenMG Jukebox will not playback the expired song  and the expired song will not  be available
for check-out to Network Walkman. Delete these songs as needed.
10
Listening to music with Network
Walkman
Please  charge the battery before use (see page 7).
Note
When using Network Walkman, be sure to disconnect it from the computer.
   Connect the headphones/earphones.
2
    Start playback.
to i jack
Playback stops automatically when the music
reaches the end (only when the REPEAT
mode is off).
If playback does not start
The HOLD switch may be switched on. Please
release it off (page 13).
To stop playback
Push the jog lever.
Tip
If you do not operate the player for 3 seconds while
in stop mode, the display automatically turns off.
1 Push the jog lever.
2 Press the VOLUME
+/– button up or
down to adjust
the volume.
HOLD switch
(rear)
11
Basic Operations
On other operations
To
Go to the beginning
of the next track
Go to the beginning
of the succeding
tracks
Go to the beginning
of the actual track
Go to previous
tracks
Go forward
Go backward
Operation of
the Jog lever
Slide upwards once.
Slide upwards
and hold still.
Slide downwards once.
Slide downwards
and hold still.
While playback, slide up
and hold still.
While playback, slide
down and hold still.
Slide
downwards
Jog lever
Slide
upwards
Push
On the display
4
3
2
1
5
BASS12
1
SHUF
VOL
6
1 Play/Volume indicators
While playing, the 
N icon and the song
number appear.
While changing the volume, VOL and the
volume level appear.
2 Play back mode indication (page 13)
The selected repeat mode is displayed.
3 MEGA BASS indication (page 12)
The indication lights up while the MEGA
BASS function is activated.
4 AVLS indication (page 12)
The indication lights up while the AVLS
function is activated.
5 Battery remain indication (page 7)
The remaining battery power is
displayed.
6 Timeout icon
Depending on the time-limited rights
associated with certain music content, the
playback period may expire. (The icon
appears when you play back a timeout
content. The icon flashes if the playback
period has expired.)

Download Sony NW-E10 / NW-E7 Service Manual (Repair Manual)

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