Sony Walkman NW-A805 User manual

SERVICE MANUAL
DIGITAL MEDIA PLAYER
SPECIFICATIONS
Photo: NW-A808
Ver. 1.0 2007.04
– Continued on next page –
9-887-631-01
2007D05-1
© 2007.04
Sony Corporation
Connect Business Division
Published by SonyTechno Create Corporation
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Tourist Model
NW-A805/A806/A808
•SonicStage and the SonicStage logo are trademarks or registered trademarks of Sony
Corporation.
•OpenMG, ATRAC, ATRAC3, ATRAC3plus, ATRAC Advanced Lossless and their logos are
trademarks of Sony Corporation.
•“WALKMAN”and “WALKMAN” logo are registered trademarks of Sony Corporation.
is a trademark of Sony Corporation.
•Microsoft, Windows, Windows Vista and Windows Media are trademarks or registered
trademarks of Microsoft Corporation in the United States and/or other countries.
•Adobe and Adobe Reader are trademarks or registered trademarks of Adobe Systems
Incorporated in the United States and/or other countries.
•MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and
Thomson.
•IBM and PC/AT are registered trademarks of International Business Machines Corporation.
•Macintosh is a trademark of Apple Inc.
•QuickTime is a trademark or registered trademark of Apple Inc. in the U.S. and/or other
countries.
•Pentium is a trademark or a registered trademark of Intel Corporation.
•This software is based in part on the work of the Independent JPEG Group.
•THIS PRODUCT IS LICENSED UNDER THE MPEG-4 VISUAL PATENT PORTFOLIO
LICENSE FOR THE PERSONAL AND NON-COMMERCIAL USE OF A CONSUMER FOR
(i) ENCODING VIDEO IN COMPLIANCE WITH THE MPEG-4 VISUAL STANDARD
(“MPEG-4 VIDEO”) AND/OR
(ii) DECODING MPEG-4 VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED
IN A PERSONAL AND NON-COMMERCIAL ACTIVITY AND/OR WAS OBTAINED
FROM A VIDEO PROVIDER LICENSED BY MPEG LA TO PROVIDE MPEG-4 VIDEO.
NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY OTHER USE.
ADDITIONAL INFORMATION INCLUDING THAT RELATING TO PROMOTIONAL,
INTERNAL AND COMMERCIAL USES AND LICENSING MAY BE OBTAINED FROM
FROM MPEG LA, LLC. SEE HTTP://WWW.MPEGLA.COM
•THIS PRODUCT IS LICENSED UNDER THE AVC PATENT PORTFOLIO LICENSE FOR
THE PERSONAL AND NON-COMMERCIAL USE OF A CONSUMER TO
(i) ENCODE VIDEO IN COMPLIANCE WITH THE AVC STANDARD (“AVC VIDEO”)
AND/OR
(ii) DECODE AVC VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED IN A
PERSONAL AND
NON-COMMERCIAL ACTIVITY AND/OR WAS OBTAINED FROM A VIDEO PROVIDER
LICENSED TO PROVIDE AVC VIDEO. NO LICENSE IS GRANTED OR SHALL BE
IMPLIED FOR ANY OTHER USE.
ADDITIONAL INFORMATION MAY BE OBTAINED FROM MPEG LA, L.L.C. SEE
HTTP://MPEGLA.COM
•US and foreign patents licensed from Dolby Laboratories.
•All other trademarks and registered trademarks are trademarks or registered trademarks of their
respective holders. In this manual,
TM
and ®marks are not specified.
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
from Microsoft or an authorized Microsoft subsidiary.
Program ©2007 Sony Corporation
Documentation ©2007 Sony Corporation
Supported le format
Music
Codec MP3 Bit rate: 32 to 320 kbps, variable bit rate-compliant (VBR)
Sampling frequency*
1
: 32, 44.1, 48 kHz
WMA*
2
Bit rate: 32 to 192 kbps, variable bit rate-compliant (VBR)
Sampling frequency*
1
: 44.1 kHz
ATRAC Bit rate: 48 to 352 kbps (66*
3
, 105*
3
, 132 kbps for ATRAC3)
Sampling frequency*
1
: 44.1 kHz
ATRAC
Advanced
Lossless*
4
Bit rate: 64 to 352 kbps (132 kbps for ATRAC3 base layer)
Sampling frequency*
1
: 44.1 kHz
AAC*
2
Bit rate: 16 to 320 kbps, variable bit rate-compliant (VBR)*
5
Sampling frequency*
1
: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz
The number of songsMax. 65,535
Video
File format MP4 file format, “Memory Stick” video format
File extension .mp4, .m4v
Codec Video MPEG-4 Profile: Simple Profile
Bit rate: Max. 2,500 kbps
AVC
(H.264/AVC) Profile: Baseline Profile Level: 1.2, 1.3
Bit rate: Max. 768 kbps
Frame rate: Max. 30 fps
Resolution: Max. QVGA (320 ×240)
Audio AAC-LC Channel number: Max. 2 channels
Sampling frequency: 24, 32, 44.1, 48 kHz
Bit rate: Max. 288 kbps per 1 channel
File size Max. 2 GB
The number of files Max. 1,000
Photo*
6
File format Compatible with DCF 2.0/Exif 2.21file format
File extension .jpg
Codec JPEG (Baseline)
Number of pixels: Max. 4,000 ×4,000 pixels (16,000,000 pixels)
The number of files Max. 10,000
*1Sampling frequency may not correspond to all encoders.
*2Copyright protected WMA/AAC files cannot be played back.
*3You cannot record songs on CDs in the ATRAC3 66/105 kbps format using SonicStage.
*4The bit rate description of ATRAC Advanced Lossless shows the bit rate for the contents
which enables fast transfer to ATRAC compatible devices or media.
*5Non-standard bit rates or non-guaranteed bit rates are included depending on the
sampling frequency.
*6Some video files cannot be played back, depending on their file formats.

2
NW-A805/A806/A808
Maximum recordable number of songs and time (Approx.)
The approximate times are based on the case in which you transfer or record only 4
minutes songs (not including videos and photos) in the ATRAC*
1
or the MP3 format.
Other playable audio file format song numbers and times may differ from ATRAC or MP3
format.
*
1
Except ATRAC Advanced Lossless. Compression rate of ATRAC Advanced Lossless
varies depending on songs.
For example, one CD (containing 15 4-minute songs) is approximately 200 to 500 MB.
NW-A805 NW-A806
Bit rate Songs Time Songs Time
48 kbps 1,300 86 hr. 40 min. 2,700 180 hr. 00 min.
64 kbps 980 65 hr. 20 min. 2,000 133 hr. 20 min.
128 kbps 495 33 hr. 00 min. 1,000 66 hr. 40 min.
256 kbps 250 16 hr. 40 min. 515 34 hr. 20 min.
320 kbps 200 13 hr. 20 min. 410 27 hr. 20 min.
NW-A808
Bit rate Songs Time
48 kbps 5,500 366 hr. 40 min.
64 kbps 4,100 273 hr. 20 min.
128 kbps 2,050 136 hr. 40 min.
256 kbps 1,050 70 hr. 00 min.
320 kbps 840 56 hr. 00 min.
Maximum recordable time of videos (Approx.)
The approximate recordable times is estimated in the case where only videos are
transferred. The time may differ, depending on the conditions under which the player is
used.
NW-A805 NW-A806 NW-A808
Bit rate Time Time Time
384 kbps 7 hr. 40 min. 15 hr. 40 min. 32 hr. 40 min.
768 kbps 4 hr. 20 min. 9 hr. 20 min. 19 hr. 00 min.
Maximum recordable number of photos that can be transferred (Approx.)
Max. 10,000
Recordable number of photos may be less depending on file sizes.
Capacity (User available capacity)*1
NW-A805: 2 GB (Approx. 1.81 GB = 1,948,622,848 bytes)
NW-A806: 4 GB (Approx. 3.73 GB = 4,008,198,144 bytes)
NW-A808: 8 GB (Approx. 7.56 GB = 8,127,348,736 bytes)
*
1
Available storage capacity of the player may vary.
A portion of the memory is used for data management functions.
Output (headphones)
•Output
5 mW + 5 mW (16 )
•Frequency response
20 to 20,000 Hz (when playing data file, single signal measurement)
Interface
Headphone: Stereo mini-jack
WM-PORT (multiple connecting terminal): 22 pins
Hi-Speed USB (USB 2.0 compliant)
Operating temperature
5°C to 35°C (41°F to 95°F)
Power source
•Built-in rechargeable lithium-ion battery
•USB power (from a computer via the supplied USB cable)
Charging time
USB-based charging
Approx.3 hours (full charge), Approx.1.5 hours (approx. 80%)
Battery life (continuous playback)
The time below is approximated when “New Song Pop Up”, “Clear Stereo”, “DSEE” and
and “Dynamic Normalizer” are set to “Off,” “Display Time” is set to other than “Always
On”, and screensaver, “Equalizer” and “VPT” are set to “None.”
Furthermore, for videos, the time is approximated when the brightness of the screen is set
to “3.”
The time below may differ depending on ambient temperature or the status of use.
NW-A805/A806/A808
Music
Playback at ATRAC 132 kbps Approximately 30 hours
Playback at ATRAC 128 kbps Approximately 27 hours
Playback at ATRAC 48 kbps Approximately 28 hours
Playback at ATRAC Advanced
Lossless 64 kbps Approximately 27 hours
Playback at MP3 128 kbps Approximately 33 hours
Playback at WMA 128 kbps Approximately 33 hours
Playback at AAC 128 kbps Approximately 32 hours
Video
Playback at MPEG-4 384 kbps Approximately 8 hours
Playback at MPEG-4 768 kbps Approximately 7 hours
Playback at AVC 384 kbps Approximately 6.5 hours
Playback at AVC 768 kbps Approximately 6.5 hours
Display
2.0-inch, low-temperature poly-silicon TFT color display with white LED-backlight,
QVGA (240 ×320 dots), 0.1275 mm dot pitch, 262,144 colors
Dimensions (w/h/d, projecting parts not included)
43.8 ×88.0 ×9.1 (Thinnest part 8.3) mm (1 3/4 ×3 1/2 ×3/8 (Thinnest part 11/32) inches)
Dimension (w/h/d)
44.5 ×88.0 ×9.6 mm (1 13/16 ×3 1/2 ×13/32 inches)
Mass
Approx. 53 g (Approx. 1.9 oz)
Supplied Accessories
Headphones (1)
Headphone extension cord (1)
Earbuds (Size S, L) (1)
USB cable*
1
(1)
Attachment (1)
Use when connecting the player to the optional cradle, etc.
CD-ROM*
2
(1)
−SonicStage software
−Image Converter software*
3
−Operation Guide (PDF file)
Quick Start Guide (1)
*
1
Do not use any USB cable other than the supplied USB cable or the specified
optional dedicated cables.
*
2
Do not attempt to play this CD-ROM in an audio CD player.
*
3
Use this player together with the supplied Image Converter software (version
3.0 or later). This software is referred as ìImage Converterî in this manual.
Design and specifications are subject to change without notice.

3
NW-A805/A806/A808
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 3
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Rear Cabinet Assy ........................................................... 6
3-3. MAIN Board.................................................................... 7
3-4. Holder Connector ............................................................ 7
3-5. NAND Board, SVX Switch Flexible (PWB Assy).......... 8
3-6. Note When Installing The SVX Switch Flexible
(PWB Assy) ..................................................................... 8
3-7. Front Button .................................................................... 9
3-8. SVX LCD Assy (LCD801), Battery Assy ....................... 9
3-9. Front Cabinet Assy .......................................................... 10
4. TEST MODE.............................................................. 11
5. DIAGRAMS
5-1. Block Diagram ................................................................ 18
5-2. Printed Wiring Boards – MAIN Section (1/2) –.............. 20
5-3. Printed Wiring Boards – MAIN Section (2/2) –.............. 21
5-4. Schematic Diagram – MAIN Section (1/6) – .................. 22
5-5. Schematic Diagram – MAIN Section (2/6) – .................. 23
5-6. Schematic Diagram – MAIN Section (3/6) – .................. 24
5-7. Schematic Diagram – MAIN Section (4/6) – .................. 25
5-8. Schematic Diagram – MAIN Section (5/6) – .................. 26
5-9. Schematic Diagram – MAIN Section (6/6) – .................. 27
6. EXPLODED VIEWS
6-1. Rear Cabinet Section ....................................................... 41
6-2. MAIN Board, NAND Board Section .............................. 42
6-3. Front Cabinet Section ...................................................... 43
7. ELECTRICAL PARTS LIST................................ 44
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
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
NOTE THE IC301, IC302, IC501, IC503, IC505, IC506,
IC509, IC601, IC602, IC701, IC802, IC803, IC901 AND
IC903 ON THE MAIN BOARD REPLACING
When IC301, IC302, IC501, IC503, IC505, IC506, IC509, IC601,
IC602, IC701, IC802, IC803, IC901 and IC903 on the MAIN board
is damaged, exchange the new MAIN board for the MAIN board
which IC damaged.
NOTE THE CN601 ON THE MAIN BOARD
REPLACING
When CN601 on the MAIN board is damaged, exchange the new
MAIN board for the MAIN board which connector damaged.
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
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.
MinimumSystem Requirements (for the player)
•Computer
IBM PC/AT or compatible computer preinstalled with the following Windows operating
systems:
Windows 2000 Professional (Service Pack 4 or later)/Windows XP Home Edition (Service
Pack 2 or later)/Windows XP Professional (Service Pack 2 or later)/Windows XP Media
Center Edition (Service Pack 2 or later)/Windows XP Media Center Edition 2004 (Service
Pack 2 or later)/Windows XP Media Center Edition 2005 (Service Pack 2 or later)/Windows
Vista Home Basic/Windows Vista Home Premium/Windows Vista Business/Windows Vista
Ultimate
Not supported by 64 bit version OS.
Not supported by OSs other than above.
•CPU: Pentium III 733 MHz or higher (For Windows Vista, Pentium III 800 MHz or higher)
•RAM: 128 MB or more (For Windows XP, 256 MB or more; for Windows Vista, 512 MB
or more)
•Hard Disk drive: 240 MB or more of available space (1.5 GB or more is recommended)
More space may be required, depending on the version of the operating system.
Additional space is required for storing music, video and photo data.
•Display:
−Screen Resolution: 800 ×600 pixels (or higher) (recommended 1,024 ×768 or higher)
−Colors: High Color (16 bit) (or higher) (SonicStage and Image Converter may not operate
properly at color settings at or below 256 colors.)
•CD-ROM drive (supporting Digital Music CD playback capabilities using WDM)
To create original CDs or to back up audio CDs, a CD-R/RW drive is required.
•Sound board
•USB port (Hi-Speed USB is recommended)
•Internet Explorer 6.0 or later and DirectX version 9.0b or later need to be installed.
•Internet connection is required to use the CD Data Base (CDDB) or Electronic Music
Distribution (EMD) or to restore the backup data with SonicStage.
•When converting Windows Media format videos, it is required to have installed the latest
Windows Media Player.
•When converting QuickTime or M4V format videos, it is required to have installed the latest
QuickTime.
We do not guarantee operation for all computers even if they meet the above System
Requirements.
Not supported by the following environments:
−Personally constructed computers or operating systems
−An environment that is an upgrade of the original manufacturer-installed operating system
−Multi-boot environment
−Multi-monitor environment
−Macintosh

4
NW-A805/A806/A808
COLOR VARIATION
Model Destination COLOR
BLACK VIOLET WHITE PINK
CND zz
CE7 zzzz
CEW zzzz
NW-A805 CEV zzzz
E, AUS, JE zz
MX z
CH zzzz
CND zz
CE7 zzzz
CEW zz
NW-A806 CEV zz
E, AUS, JE zzz
MX zz
CH zz
CND z
CE7 zz
CEW z
NW-A808 CEV z
E, AUS, JE z
MX z
CH z
•Abbreviation
AUS:Australian model
CE7 : AEP and UK models
CEV : East European model
CEW : French model
CH : Chinese model
JE :Tourist model
MX : Mexican model
NOTE THE MAIN BOARD REPLACING
When the MAIN board is replaced, format it according to the
following.
Formatting Memory (Format)
You can format the built-in flash memory of the player.
If the memory is formatted, all music, video and photo data, etc., will be
erased.
Be sure to verify the data stored in memory prior to formatting and export
any important data to SonicStage or the hard disk of your computer.
5-way button
BACK/HOME
button
Settings
Note
•This function is only available in the pause mode.
1Press and hold the BACK/HOME button in the pause mode until the
Home menu appears.
2Press the f/F/g/Gbutton to select
the 7button to conrm.
3Press the f/F/g/Gbutton to select “Common Settings,” and then
press the 7button to conrm.
The list of Common Settings options appears.
4Press the f/F/g/Gbutton to select “Format,” and then press the
7button to conrm.
“All data including songs will be deleted. Proceed?” appears.
5Press the f/Fbutton to select “Yes,” and then press the 7button
to conrm.
“All data will be deleted. Proceed?” appears.
6Press the f/Fbutton to select “Yes,” and then press the 7button
to conrm.
While the memory is being formatted, an animated display appears.
When initialization finishes, “Memory formatted.” appears.
To cancel the operation
Select “No” in step 5 or 6 and press the 7button to confirm.
To return to the previous menu
Press the BACK/HOME button.
Note
•Do not format the built-in flash memory using Windows Explorer.
(Settings), and then press

5
NW-A805/A806/A808
SECTION 2
GENERAL This section is extracted from
instruction manual.
Parts and Controls
15-way button*
1
Starts playback and enables
navigation of the player’s on-screen
menus.
2BACK/HOME button*
2
Press to go up one list screen level,
or to return to the previous menu.
Press and hold the BACK/HOME
button to display the Home menu.
3WM-PORT jack
Use this jack to connect the supplied
USB cable, or optional peripheral
devices, such as supported
accessories for the WM-PORT.
4Headphone jack
For connecting the headphones or the
headphone extension cord. Insert the
jack pin until it clicks into place. If
the headphones are connected
improperly, the sound from the
headphones may not sound right.
Whenusing the headphone
extension cord
Headphone
extension cord
Headphones
Front
Rear
5OPTION/PWR OFF button*
2
Displays the Option menu.
If you press and hold the OPTION/
PWR OFF button, the screen turns
off and the player enters the standby
mode. If you press any button while
the player is in the standby mode,
the Now Playing screen appears and
the player is ready for operation.
Furthermore, if you leave the player
in the standby mode for about a day,
the player turns completely off
automatically. If you press any button
when the player is turned off, the
start up screen appears first, then the
Now Playing screen appears.
Note
•The player consumes the battery very
slightly even when it is in the standby
mode. Therefore, the player might
turn completely off in a short time,
depending on the power remaining in
the battery.
6VOL+*1/-- button
Adjusts the volume.
7RESET button
Resets the player when you press the
RESET button with a small pin, etc.
8Strap hole
This is used to attach a strap (sold
separately).
9HOLD switch
You can protect the player against
accidental operation by using the
HOLD switch when carrying it. By
sliding the HOLD switch in the
direction of the arrow, all operation
buttons are disabled. If you slide the
HOLD switch to the opposite
position, the HOLD function is
released.
*
1
There are tactile dots. Use them to help
with button operations.
*
2
Functions of marked with on the
player are activated if you press and hold
the corresponding buttons.

NW-A805/A806/A808
6
Note: Follow the disassembly procedure in the numerical order given.
3-2. REAR CABINET ASSY
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
3-2. REAR CABINET ASSY
(Page 6)
3-3. MAIN BOARD
(Page 7)
3-4. HOLDER CONNECTOR
(Page 7)
3-5. NAND BOARD,
SVX SWITCH FLEXIBLE (PWB ASSY)
(Page 8)
3-6. NOTE WHEN INSTALLING THE SVX SWITCH FLEXIBLE (PWB ASSY)
(Page 8)
3-7. FRONT BUTTON
(Page 9)
3-8. SVX LCD ASSY (LCD801),
BATTERY ASSY
(Page 9)
3-9. FRONT CABINET ASSY
(Page 10)
SET
1 two ornament pins
7 spacer (belt)
8 rear cabinet assy
4 two claws
2 claw
3 claw
3 claw
5
6 adhesive (rear)
hold switch (S602)
hold button
6 adhesive (rear)
Note1: Adhesive (rear) cannot re-used.
Please replace to brand-new part
once adhesive (rear) is removed.
Note2: On installation of hold button,
adjust the position of hold
switch (S602) hold button. (BLACK,VIOLET model only)
hold switch (S602)
hold button

NW-A805/A806/A808
7
3-3. MAIN BOARD
1 cushion (connector)
8 connector
(CN601)
6 screw (M1.4)
9 insulating sheet (main)
q; spacer (PWB)
qa spacer (IC)
qf spacer (SRAM)
qg MAIN board
qd shield case (main)
qs Remove the
two solders.
qs Remove the
two solders.
7 Turn up the LCD flexible board.
2 sheet (harness)
3 LCD flexible board
(CN801)
4 battery assy connector
(CN901)
5 Unsolder three places of the
HP flexible board,
and turn it up without applying
an excessive force.
– rear view –
– rear view –
3-4. HOLDER CONNECTOR
4 shaft
2
AB
3
6 spring (door)
spring (door)
5 connector door assy
connector door assy
7 holder connecto
r
holder connector
4 shaft
NOTE WHEN INSTALLING THE SPRING (DOOR)
1 Lift up the
holder connector.
Note: Hook the spring (door) on the part A of connector door assy
and the part
B of holder connector as shown in the figure.
– side view –
– rear view –

NW-A805/A806/A808
8
3-5. NAND BOARD, SVX SWITCH FLEXIBLE (PWB ASSY)
3-6. NOTE WHEN INSTALLING THE SVX SWITCH FLEXIBLE (PWB ASSY)
Note: Follow the assembly procedure in the numerical order given.
4 Turn up the LCD flexible board.
1 two claws
2 Lift up the
SVX swtch flexible (PWB assy).
5 Lift up the NAND board.
3 two screws (M1.4)
8 sheet (NAND)
q; NAND board
9 spacer (NAND)
6 Remove the three solders.
7 SVX swtch flexible (PWB assy
)
(NW-A805/A806 only)
– rear view –
2 Holding the bent part,
rotate the
SVX swtch flexible (PWB assy
)
by 3 or 4 turns in the arrow direction,
and twist to bind the lead wires.
About 45
°
1 Bend the switch flexible board.
4 Push the lead wires completely into a space
between front cabinet assy and LCD holder.
3 Holding the bent part, push in the
SVX swtch flexible (PWB assy)
until it gets stuck by two claws
of the front cabinet assy.
Note: Route the lead wires as shown in the figure,
and solder them at the angle shown in the figure.
Note: The soldering height
should be less than 0.8 mm.
About 45 °
SVX swtch flexible (PWB assy)
NAND board
lead wire (red)
lead wire (gray)
lead wires
front cabinet assy
claw
lead wire (black)
claw LCD holder
– rear view –

NW-A805/A806/A808
9
3-7. FRONT BUTTON
3-8. SVX LCD ASSY (LCD801), BATTERY ASSY
2 front butto
n
1 Turn up the LCD flexible board.
– rear view –
1 screw (B1.4)
7 two claws
7 two claws
7 claw
1 screw (B1.4)
3 Turn down the LCD flexible board.
4 adhesive (LCD)
2
5 Open the LCD flexible board.
6 adhesive (LCD)
Note: Adhesive (LCD) cannot re-used.
Please replace to brand-new part
ones adhesive (LCD) is removed.
Note: Adhesive (LCD) cannot re-used.
Please replace to brand-new part
ones adhesive (LCD) is removed.
8 SVX LCD assy
(LCD801)
9 cushion (BATT)
q; spacer (rear)
qa battery assy
– rear view –

NW-A805/A806/A808
10
3-9. FRONT CABINET ASSY
1 VOL button
3 NAND gasket
2 gasket (rear)
VOL button
front cabinet assy rear cabinet assy
Note: The VOL button should be oriented
as shown in the figure when it is installed.
Note: NAND gasket cannot re-used.
Please replace to brand-new part
ones NAND gasket is removed.
Note: Gasket (rear) cannot re-used.
Please replace to brand-new part
ones gasket (rear) is removed.
4 conductive sheet (jack
)
5 front cabinet assy
– side view –
front cabinet assy back view

11
NW-A805/A806/A808
SECTION 4
TEST MODE
Note: Information on the test mode must correspond in enough securi-
ty. When the leakage has been revealed by any chance, the source
of information is specified.
1. SETTING THE TEST MODE
Note: Perform the test mode in the state of 3.6 V or more in the
battery voltage.
Setting method:
1. Turn the power on.
2. Press the [BACK] key for 1.5 seconds or more, the home menu
is displayed.
3. Slide the [HOLD] key to set the hold on.
4. While pressing the [OPTION] key, press the key as follow-
ing order.
v→ B→ V→ b→ v→ u→ v→ b→ V→ B→ v→u
5. The set reboots when the [HOLD] key is slided to set the hold
off, and the color bar is displayed in the liquid crystal display.
6. Enter the test mode when the [BACK] key is pressed in the
state of step 5.
Note: The destination setting and sound pressure regulation set-
ting cannot be executed by this test mode.
2. RELEASING THE TEST MODE
1. Display the major item selection screen.
2. Press the v/Vkey to select the “EXITTEST”, and press the
Bkey to select the “SURE ?”.
3. Press the ukey, turn the power off and release the test mode.
3. CONFIGURATION OF THE TEST MODE
4. OPERATION OF THE TEST MODE
4-1. Power
liquid crystal display
MPTAPP MENU
POWER VCHK
AUDIO ACHK
VIDEO DSVCHK
OTHER CHGCHK
SHUTDOWN BATTCHK
EXITTEST
4-1-1. Power supply voltage check
This mode is used in case power supply voltage in the state where
all power supply lines are starting is checked.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “POWER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “VCHK”.
4. Press the ukey, all power supply lines are started.
liquid crystal display
POWER VCHK
START
In this state, the power supply voltage of each power supply line
can be confirmed by measuring the voltage.
5. Press the [BACK] key, return to minor item selection screen.
4-1-2. Consumption current (audio playback) check
This mode is used in case consumption current (audio playback) is
checked in the state where “1 kHz 0 dBs L-ch/R-chVOLUME: 15”
audio signal is outputed.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “POWER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “ACHK”.
4. Press the ukey, “1 kHz 0 dBs L-ch/R-chVOLUE: 15” audio
signal is outputed.
liquid crystal display
POWER ACHK
1kHz 0dBs L/Rch
HPOUT [ VOL: 15 ]
START
5. In this state, each time the [OPTION] key is pressed, LCD back
light on/off switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
[ ] key
Major item Major item switching:
[ ] / [ ] key
[BACK] key
Minor item
Finish
or
Result
Start
Automatic
u
[ ] key
[ ] key
Bb
vV
Minor item switching:
[ ] / [ ] key
vV

12
NW-A805/A806/A808
4-1-3. Standby current check
This mode is used in case standby current is checked.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “POWER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “DSVCHK”.
4. Press the ukey, enter the state of the deep sleep.
5. Press the [BACK] key, release the state of the deep sleep.
liquid crystal display
POWER DSVCHK
OK
6. Press the [BACK] key, return to minor item selection screen.
4-1-4. Charge current check
This mode is used in case charge current is checked.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “POWER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “CHGCHK”.
4. Press the ukey, the charge setting is displayed.
liquid crystal display
POWER CHGCHK
AC
AC
5. In this state, each time the [OPTION] key is pressed, the port
setting for the charge is changed as shown in the table below.
Port control
Display CHG_XCHGEN CHG_PEN CHG_PEN2
AC L H H
USB500 L H H
USB100 L H L
6. Press the [BACK] key, return to minor item selection screen.
4-1-5. Battery voltage check
This mode is used in case battery voltage is checked.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “POWER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “BATTCHK”.
4. Press the ukey, the battery voltage is displayed.
When the battery voltage cannot be confirmed, “ERROR” is
displayed.
liquid crystal display
POWER BATTCHK
X.XXXV
X.XXXV: Battery voltage
6. Press the [BACK] key, return to minor item selection screen.
4-2. Audio
While playing the audio track, it's in a repeat state. If [BACK] key is
pressed, it’s stopped.
Press the [VOL +] key to switch the HP/LINE.
liquid crystal display
MPTAPP MENU
POWER
AUDIO OUTPUT
VIDEO SN
OTHER F1
SHUTDOWN F2
EXITTEST SEPLR
SEPRL
MAXOUT
NMLZR
SPCHK

13
NW-A805/A806/A808
4-2-1. Output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “OUTPUT”.
4. Press the ukey, “1 kHz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
AUDIO OUTPUT
1kHz 0dBs L/Rch
HPOUT [ VOL: 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-2. S/N check
“Infinity Zero VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “SN”.
4. Press the ukey, “Infinity Zero VOLUME: 30” audio signal
is outputted.
liquid crystal display
AUDIO SN
Infinity Zero
HPOUT [ VOL: 30 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-3. Frequency characteristic 1 check
“20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “F1”.
4. Press the ukey, “20 Hz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
AUDIO F1
20Hz 0dBs L/Rch
HPOUT [ VOL: 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-4. Frequency characteristic 2 check
“20 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “F2”.
4. Press the ukey, “20 kHz 0 dBs L-ch/R-ch VOLUME: 25”
audio signal is outputted.
liquid crystal display
AUDIO F2
20kHz 0dBs L/Rch
HPOUT [ VOL: 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.

14
NW-A805/A806/A808
4-2-5. CH separation (L-ch) check
“1 kHz 0 dBs L-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “SEPLR”.
4. Press the ukey, “1 kHz 0 dBs L-ch VOLUME: 25” audio
signal is outputted.
liquid crystal display
AUDIO SEPLR
1kHz 0dBs Lch
HPOUT [ VOL: 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-6. CH separation (R-ch) check
“1 kHz 0 dBs R-ch VOLUME: 25” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “SEPRL”.
4. Press the ukey, “1 kHz 0 dBs R-ch VOLUME: 25” audio
signal is outputted.
liquid crystal display
AUDIO SEPRL
1kHz 0dBs Rch
HPOUT [ VOL: 25 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-2-7. Maximum output check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” (Headphone output when
AVLS operates: “1 kHz 0 dBs L-ch/R-chVOLUME: 13”) audio sig-
nal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v /Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “MAXOUT”.
4. Press the ukey, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”
(Headphone output when AVLS operates: “1 kHz 0 dBs L-ch/
R-ch VOLUME: 13”) audio signal is outputted.
liquid crystal display
AUDIO MAXOUT
1kHz 0dBs L/Rch
HPOUT [ VOL: 30 ]
AVLS OFF
START
5. In this state, each time the [OPTION] key is pressed,AVLS on/
off switch is performed.
6. Press the [BACK] key, return to minor item selection screen.
4-2-8. Normalizer check
“1 kHz –24 dBs L-ch/R-ch VOLUME: 30” audio signal is output-
ted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “NMLZR”.
4. Press the ukey, “1 kHz –24 dBs L-ch/R-chVOLUME: 30”
audio signal is outputted.
liquid crystal display
AUDIO NMLZR
1kHz –24dBs L/Rch
HPOUT [ VOL: 30 ]
START
5. Press the [BACK] key, return to minor item selection screen.

15
NW-A805/A806/A808
4-2-9. Sound pressure regulation level check
“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “AUDIO”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “SPCHK”.
4. Press the ukey, “1 kHz 0 dBs L-ch/R-ch VOLUME: 30”
audio signal is outputted.
liquid crystal display
AUDIO SPCHK
1kHz 0dBs L/Rch
HPOUT [ VOL: 30 ]
START
5. Press the [BACK] key, return to minor item selection screen.
4-3. Video
liquid crystal display
MPTAPP MENU
POWER
AUDIO
VIDEO LCD
OTHER
SHUTDOWN
EXITTEST
4-3-1. LCD display check
Liquid crystal display is checked.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “VIDEO”, and press the B
key to select the “LCD”.
3. Press the u key, all black is displayed on the liquid crystal
display.
4. In this state, each time the [OPTION] key is pressed, the screen
display changes in the following order.
All black (default) → All red → All green → All blue → All
white → Color bar → Maximum drawing size confirmation
Maximum drawing size confirmation:
All blue (All sides are red) is displayed. Whether red in all
sides is seen is confirmed.
4. In this state, each time the [VOL ---] key is pressed, LCD back
light brightness min/max/middle switch is performed.
5. Press the [BACK] key, return to minor item selection screen.
4-4. Other
liquid crystal display
MPTAPP MENU
POWER
AUDIO
VIDEO
OTHER CLOCK
SHUTDOWN KEY
EXITTEST FORMAT
DEST
SPSET
FWVER
NCAPCHK
4-4-1. Clock check
The movement of an internal clock is confirmed.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “OTHER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “CLOCK”.
4. Press the ukey, date and time are displayed.
liquid crystal display
OTHER CLOCK
XX, XX XX XXXX
##:##:##.######
START
XX, XX XX XXXX : Date
##:##:##.###### : Time
“START” changes into “OK” if the movement of an internal
clock is confirmed.
5. Press the [BACK] key, return to minor item selection screen.

16
NW-A805/A806/A808
4-4-2. Key check
The operation of the key is confirmed.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “OTHER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “KEY”.
4. Press the ukey, all keys are displayed.
liquid crystal display
OTHER KEY
UP VOL+
REW PLAY FF VOL–
DOWN OPTION
HOLD BACK
START
5. The character corresponding to the key is selected every time
the key is pressed. “START” changes into “OK” if all keys are
pressed.
6. Slide the [HOLD] key from ON to OFF, return to minor item
selection screen.
4-4-3. Format
The user’s area is formatted, and ICV for the video and ICV for
audio are initialized.
Note: Not used for the servicing.
Format the set from “Settings” → “Common settings” →
“Format” when it home menu in usually operates when the
set should format it.
4-4-4. Destination setting
The destination setting, language information, and sound pressure
regulation information are written in the NAND flash memory.
Note: Not used for the servicing.
4-4-5. Sound pressure regulation setting
ON/OFF of sound pressure regulation is confirmed.
Note: Not used for the servicing.
4-4-6. Firmware version check
The firmware version is displayed.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “OTHER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “FWVER”.
4. Press the ukey, the firmware version is displayed.
liquid crystal display
OTHER FWVER
X.XX.XX
X.XX.XX : Firmware version
5. Press the [BACK] key, return to minor item selection screen.
4-4-7. NAND capacity check
(firmware version 1.00.19 former)
Capacity of NAND flash memory is displayed.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “OTHER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “NCAPCHK”.
4. Press the ukey, capacity of NAND flash memory is dis-
played.
liquid crystal display
OTHER NCAPCHK
X GB
X GB : Capacity of NAND flash memory
2 GB/4 GB/8 GB
5. Press the [BACK] key, return to minor item selection screen.

1717
NW-A805/A806/A808
NW-A805/A806/A808
4-4-8. NAND capacity check
(since firmware version 1.00.20)
Capacity of NAND flash memory, present bud block, maximum
bud block, and vender ID are displayed.
Checking method:
1. Enter the test mode.
2. Press the v/Vkey to select the “OTHER”, and press the B
key to enter the minor item.
3. Press the v/Vkey to select the “NCAPCHK”.
4. Press the ukey, capacity of NAND flash memory, present
bud block, maximum bud block, and vender ID are displayed.
liquid crystal display
OTHER NCAPCHK
X @@@@ #### $$$$
X:Capacity of NAND flash memory
2/4/8 (2 GB/4 GB/ 8 GB)
@@@@ : Number of present bud block
(It makes an error the acquisition of the number
of bud blocks at “–1”)
#### : Number of maximum bud block
(It makes an error the acquisition of the vender ID
at “–1”)
$$$$ : Vender ID of NAND flash memory
0x98/0xec (TOSHIBA/SAMSUNG)
(It makes an error the acquisition of the vender ID
at “–1”)
5. Press the [BACK] key, return to minor item selection screen.
4-5. Shutdown
Function that power supply of set can be turned off without ending
static test mode.
Procedure:
1. Enter the test mode.
2. Press the v/Vkey to select the “SHUTDOWN”, and press
the Bkey to select the “SURE ?”.
3. Press the ukey, turn the power off while having entered the
test mode.

NW-A805/A806/A808
1818
NW-A805/A806/A808
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
BAT 17
BAT 18
POWER CONTROL,
CHARGE CONTROL
IC901
LITHIUM ION
STRAGE
BATTERY
3.7V 610mAh
AU_L_IN
13
AU_R_IN
16
D+
CN851 (1/2)
(WM-PORT)
3
D– 4
TXD/SLEEP
CN851 (2/2)
(WM-PORT)
10
RXD/WAKE
8
CRD_AD
9
USB_DET
11
UNREG_OUT
12
NAND
BOARD
NAND_CLEE9
NAND_ALED3 SYS20
SYS
21
NAND_CEZ0M9
NAND_CEZ1C2
NAND_CEZ2B3
NAND_CEZ3C3
NAND_WEZA4
NAND_REZE3
NAND_RBZ0D2
NAND_RBZ1H8
NAND_RBZ2J8
NAND_RBZ3K8
KEY_AD0C6
KEY_AD1B6
KEY_WAKE AD5
WAKEUP_INT AA2
WAKEUP U13
PM0_CLK
AC21
PM0_SEN
AB22
MUTING
Q303
HP_XMUTE Y3
CRD_LINEOUT
CHG_ICTL Y2
CHG_XCHGEN
V10
CHG_PEN2
W8
USB_SUSPEND
AB8
XUSB_OK
AB2
XCHG_DET
AC4
CHG_XFLT
AB4
VCC_VBUS
USB 15
USB
DC
DC
16
USUSS
13
/UOK
23
U70_SOUT
T17
U70_SRIN
T18
/CHG
19
/FLT
24
CRD_DET
AB3
CRD_AD C8
ISET
11
/CEN
4
/DOK
22
PEN2
VCC_VBAT
VCC_DCIN
VCC_VBUS
VDD_UNREG
VDD_DDCOUT20
6
NAND_D0O – NAND_D07
SDR_D0O – SDR_D31
USB DATA0 – USB DATA15
256Mbit SD-RAM
IC701
SDR_BA0
AB5 BA0 J7
SDR_BA1
T4BA1 H8
SDR_CLK
AA5 CLK J1
SDR_CSZ0
T3CS J8
SDR_CKE0
T1CKE J2
SDR_WEZ
R5WE K8
SDR_CASZU8CAS K7
SDR_RASZ
T5RAS J9
SDR_DQM0
P5DQM0 K9
SDR_DQM1
R4DQM1 K1
SDR_DQM2
R3DQM2 F8
SDR_DQM3
R2DQM3 F2
SDR_A00 – SDR_A12
LCD_R0 – LCD_R5
DCIN
20
2
3
SYS +3.1V
VDD_UNREG
OFF
ON
S601
RESET
S602
(HOLD)
U26
T26
X603
11.2896MHz
CKI
CKO
AB26
AC26
X602
32.768kHz
OSCIN
OSCOUT
•SIGNAL PATH
: AUDIO
DP
DM
A3
USB
CONTROLLER
IC501
A4
XCS
CD0 – CD15
USB ADDRESS1 – USB ADDRESS8
CA1 – CA8
DQ0 – DQ31
LCD_R0 – LCD_R5
LCD_G0 – LCD_G5
LCD_G0 – LCD_G5
LCD_B0 – LCD_B5
LCD_B0 – LCD_B5
A0 – A12
SDR_DATA0 –
SDR_DATA31
SDR_A0 – SDR_A12
NAND_DA0 – NAND_DA12
H2
XRD G3
XWRH F3
XWRL H3
XINT E3
XDACK F4
XDREQ G4
XRESET D1
B8
X501
12MHz
XI
C8 XO
A/D CONVERTER,
D/A CONVERTER
IC302
SYSTEM CONTROLLER, POWER CONTROL,
LCD DRIVER, NAND FLASH INTERFACE,
MS INTERFACE, SD-RAM INTERFACE
IC601
HEADPHONE/LINE
SELECTOR
IC303 J301
(HEADPHONE)
AIN1A 23
AIN1B 24
29 SDOUT
RESET SWITCH
IC502
LEVEL SHIFT
IC509
D FLIP-FLOP
IC505, 506
IC507
IC508
AB0_CSZ2 F22
AB0_D0 – AB0_D15
AB0_A1 – AB0_A8
AB0_RDZ J19
AB0_WRZ H16
FLASHCLK E19
USB_INT1 AC5
USB_INT2 AB14
AB0_XACK F23
AB0_XDRQ E24
RESETZ P10
USB_XRST AB13
PM0_SI
AD22
AU_L_OUT
14
AU_R_OUT
17
AOUTA 11
AOUTB 10
32 SDIN
NO1 2
NO2 10
NC1 4
NC2 8
3COM1
9COM2
PM0_SO
AC22
MUTING
Q302
IN1
5
IN2
7
AA1
MUTING
CONTROL
Q301, 304
SCLK
31
LRCK
1
USB_PWRCTL
AD20
SPIO_SO
AC8
SPIO_SK
AC7
SDA/CDIN
2
SCL/CCLK
3
REFCLKO
U18
SPIO_SCZ2
AD7
MCLK
30
AD0/nCS
4
ADA_XRST
AC20
LCD_PXCLK
P23
LCD_PCI
W2
LCD_VSYNC
K24
LCD_HSYNC
K22
LCD_PON
W3
LCD_BLTCTL
V17
LCD_PWM1
AD23
nRESET
25
WAKE UP
SWITCH
Q603
EXTRSTG4
XHOLD_KEY AD4
LCD_R0 – LCD_R5
LCD_G0 – LCD_G5
LCD_B0 – LCD_B5
VDD_DDCIO
VDD_ANA
VDD_ECO
VDD_HP
VDD_LO
VDD_LOG
VDD_PLL
VDD_GP1
VDD_GP4
VDD_GP3
LIQUID
CRYSTAL
DISPLAY
LCD801
LEVEL
SHIFT
IC803
LCD BACK
LIGHT DRIVER
IC802
DC/DC
CONVERTER
IC903
CHARGE
CONTROL
Q903
+3.1V
REGULATOR
IC602
USB +3.1V
+3.1V
REGULATOR
IC503
HP/LINE +1.8V
+1.8V
REGULATOR
IC301
USB +1.8V
+1.8V
REGULATOR
IC504

NW-A805/A806/A808
1919
NW-A805/A806/A808
•Note for Printed Wiring Boards and Schematic Diagrams
•MAIN board is multi-layer printed board.
However, the patterns of intermediate-layers have not been
included in diagrams.
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
•A: B+ Line.
•Power voltage is dc 3.7 V and fed with regulated dc power
supply from CN901 pin 1and pin 2on the MAIN board.
•Voltages are dc with respect to ground under no-signal
conditions.
no mark : PLAY BACK
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Signal path.
F: AUDIO
L: VIDEO
•Abbreviation
CEW : French model
Note on Printed Wiring Board:
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Par ts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.

NW-A805/A806/A808
2020
NW-A805/A806/A808
5-2. PRINTED WIRING BOARDS – MAIN Section (1/2) – : Uses unleaded solder.
•Semiconductor
Location
Ref. No. Location
IC501 D-2
IC502 D-3
IC503 C-1
IC504 C-2
IC505 D-3
IC506 D-3
IC507 D-2
IC508 D-4
IC509 D-4
IC601 C-3
IC701 C-4
IC903 B-6
Q603 D-5
R601
R603
R604
R605
R611
R618
R619
CN601
R814
R620
R621
R627
R628 R629
R633
R634
R635
C601
C602
R623
C604
C605
R642
C607
R643
C608
R644
C609
R646
R647
R648
R649
C610
C611
VDR851
X602
C612
VDR852
X603
C613
C614
R650
C615
C616
C617
C618
C619 R655
R656 R657 R658
C620
R851
C623
R853
C625
R855
S601
C626
R857
C628
R858
C629
R859
C631
C633
CL907
C634
CL908
CL909
CL910
CN851
C640
C643
C645
C650
C651 C654
C655
C656
C657
C853
C660
C661
C603
C667
C666
C668
C669
C671
C672
C674
C675
LF851
C677
C680
IC601
C682
C683
C684
L901
C685
C686
C687
C688
C689
C690
C692
C695
C697
C698
R502
R503
R504
R505
R506
R507
R509
R702
R510
R511
R512
R513
R514
R516
R517
R519
R520
R521
R522
C501
C502
C503
C504
C505
C506
C507
C508
C509
C701
C702
C703 C704
C510
X501
C511
C512
C513
C514
C709
C515
C516
C517
C518
C710 C711 C712
C713
C714
CL620
CL621
CL633
CL634
CL637
Q603
IC501
IC502
IC503
IC504
L801
IC505
IC506
IC507
IC508
IC509
IC701
IC903
D
4
5
1
3
4
24
13
AF2
E4
D4
B4
A4
Y4
AA4
AB4
AC4
AE4
AF4
B3
A3
AE3
AF3
D6
B6
A6
AC6
AE6
AF6
D5
B5
A5
AC5
AE5
AF5
H4
J4
K4
L4
M4
N4
P4
AF1
D9
B9
A9
AC9
AE9
AF9
D10
B10
W1
G1
F1
AF25
AE25T
H26
J23
K23
J26
K26
L26
M26
N26
P26
R26
T26
U26
V26
W26
G26
F26
E26
D26
C26
B26
A26
Y26
AA26
AD26
AC26
AE26
AF24
AE24
AF23AF26 AF19
D20
H25
J25
K25
L25
M25
N25
P25
R25
T25
U25
V25
W25
G25
F25
E25
D25
C25
B25
A25
Y25
H23
AA25
AD25
AC25 AC16
AE16
AF16
L23
M23
N23
P23
R23
T23
U23
V23
W23
G23
F23
E23
D23
B23
A23
Y23
AA23
AC23
AE23
B19B24
A24
AE19
AC14
AE14
AF14
B20
A20
AC20
AF20
AE20
D21
B21
A21
AC21
AE21
AF21
D22
B22
A22
AC22
AE22
AF22
AC12
AE12
D17
B17
A17
AC17
AE17
AF17
D18
B18
A18
AC18
AE18
AF18
D19
A19
AC19 AC10
AE10
D15
B15
A15
AC15
AE15
AF15
D16
B16
A16 A12 A7
AF12
D13
B13
A13
AC13
AE13
AF13
D14
B14
A14 A10
AF10
L11
D11
B11
A11
AC11
AF11
AE11
D12
B12
D7
B7
AC7
AE7
AF7
D8
B8
A8
AC8
AE8
AF8
E2
H1
J1
K1
L1
M1
N1
P1
R1
T1
E1
U1
V1
D1
C1
B1
A1
Y1
AA1
AB1
AC1
AD1
AE1
H2
J2
K2
L2
M2
N2
P2
R2
T2
U2
V2
W2
G2
F2
D2
C2
B2
A2
Y2
AA2
AB2
AC2
AD2
AE2
R4
T4
U4
V4
W4
G4
F4
C4 C3C6 C5C9
C10C23 C19C24 C20C21C22 C17C18 C15C16 C13C14 C11C12 C7C8
AD4 AD3AD6 AD5AD9AD24 AD16AD23 AD19 AD14AD20AD21AD22 AD12AD17AD18 AD10AD15 AD13 AD11 AD7AD8
H24
J24
K24
L24
M24
N24
P24
R24
T24
U24
V24
W24
G24
F24
E24
D24
Y24
AA24
AC24
E3
H3
J3
K3
L3
M3
N3
P3
R3
T3
U3
V3
W3
G3
F3
D3
Y3
AA3
AB3
AC3
E5
Y5
AA5
AB5
H5
J5
K5
L5
M5
N5
P5
R5
T5
U5
V5
W5
G5
F5
J22
K22
H22
L22
M22
N22
P22
R22
T22
U22
V22
W22
G22
F22
E22
Y22
AA22
AB26AB25 AB23AB24 AB22
E6E9
E10E20E21 E17E18E19 E15E16 E13E14 E11E12 E7E8
AB6AB9AB16 AB14AB20AB21 AB12AB17AB18AB19 AB10AB15 AB13 AB11 AB7AB8
J19
K19
H19
L19
M19
N19
P19
R19
T19
U19
V19
W19
J18
K18
H18
L18
M18
N18
P18
R18
T18
U18
V18
W18
H8
J8
K8
L8
M8
N8
P8
R8
T8
U8
V8
W8
H9
J9
K9
L9
M9
N9
P9
R9
T9
U9
V9
W9
H10
J10
K10
L10
M10
N10
P10
R10
T10
U10
V10
W10
J17
K17
H17
L17
M17
N17
P17
R17
T17
U17
V17
W17
H15H16 H13H14 H11H12
J15J16 J13J14 J11J12
K15K16 K13K14 K11K12
U16 U14U15 U13 U11U12
V16 V14V15 V13 V11V12
W16 W14W15 W13 W11W12
G
S
H8 G8 F8 E8 D8 C8 B8 A8
H7 G7 F7 E7 D7 C7 B7 A7
H6 G6 F6 E6 D6 C6 B6 A6
H5 G5 F5 C5 B5 A5
H4 G4 F4 C4 B4 A4
H3 G3 F3 E3 D3 C3 B3 A3
H2 G2 F2 E2 D2 C2 B2 A2
H1 G1 F1 E1 D1 C1 B1 A1
5
13
4
B2 B1
A2 A1
13
46
8
1
5
8
1
99
5 4
5
13
4
A1 A2
B1 C1
C2B2
129
302
1
(WM-PORT)
22
23 24
A1
B1
C1
D1
E1
F1
G1
H1
J1
K1
L1
M1
N1
P1
R1
A2
B2
C2
D2
E2
F2
G2
H2
J2
K2
L2
M2
N2
P2
R2
A3
B3
C3
D3
E3
F3
G3
H3
J3
K3
L3
M3
N3
P3
R3
A7
B7
C7
D7
E7
F7
G7
H7
J7
K7
L7
M7
N7
P7
R7
A8
B8
C8
D8
E8
F8
G8
H8
J8
K8
L8
M8
N8
P8
R8
A9
B9
C9
D9
E9
F9
G9
H9
J9
K9
L9
M9
N9
P9
R9
5
610
1
11
1-871-811-
11
(11)
MAIN BOARD (SIDE A)
RESET
NAND
BOARD
A
B
C
D
E
1 2 3 4 5 6