Sony NWHD-1 Service manual

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SERVICE MANUAL

Ver 1.0 2004.07

• SonicStage and SonicStage logo are trademarks or registered

trademarks of Sony Corporation.

• OpenMG, ATRAC3, ATRAC3plus and their logos are trademarks

of Sony Corporation.

• Microsoft, Windows, Windows NT and Windows Media are

trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.

• IBM and PC/A T are registered trademarks of International Business

Machines Corporation.

• Macintosh is a trademark of Apple Computer, Inc. in the United

States and/or other countries.

• Pentium is a trademark or a registered trademark of Intel

Corporation.

• Adobe and Adobe Reader are trademarks or registered trademarks

of Adobe Systems Incorporated in the United States and/or other countries.

• 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 specifi ed.

Maximum recordable number of track (Approx.)*

ATRAC3 ATRAC3plus

5,000 (132 kbps) 2,500 (256 kbps) 6,000 (105 kbps) 10,000 (64 kbps) 10,000 (66 kbps) 13,000 (48 kbps)

* When transferring four-minute tracks

Sampling frequency

44.1 kHz

Audio compression technology

Adaptive Transform Acoustic Coding3 (ATRAC3),

Adaptive Transform Acoustic Coding3plus (ATRAC3plus)

Frequency response

20 to 20,000 Hz

(single signal measurement during playback)

Output

(headphones)/LINE OUT* :

Stereo minijack/194 mV

* The jack is used for both headphones and LINE

OUT.

Operating temperature

5 to 35ºC (41 to 95ºF)

Power source

DC IN 6 V (from built-in rechargeable battery)

Battery life (continuous playback)

ATRAC3plus format (48 kbps): Approx. 30 hours

SPECIFICATIONS

Dimension

Not including projecting parts:

89.0 × 62.1 × 13.8 (the thinnest part 12.6) mm (3 5/8 × 2 1/2 × 9/16 (the thinnest part 1/2) inches) (w/h/d)

Including projecting parts:

89.2 × 63.4 × 14.3 mm (3 5/8 × 2 1/2 × 19/32 inches) (w/h/d)

Mass

Approx. 110 g (3.9 oz)

US and foreign patents licensed from Dolby Laboratories.

Supplied accessories

• Headphones (1)

• USB cradle (1)

• Dedicated USB cable (1)

• AC power adaptor (1)

(For the supplied USB cradle)

• Carrying pouch (1)

• CD-ROM (1) *

(SonicStage, PDF of Operating Instructions)

• Quick Start Guide (1)

* Do not play this CD-ROM on an audio CD player.

Design and speci cations are subject to change without notice.

US Model

AEP Model

UK Model

9-879-079-01

PORTABLE HARD DISK AUDIO PLAYER

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

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Notes on the AC power adaptor

Use only the AC power adaptor and USB cradle supplied with the player. Do not use any other AC power adaptor since this may cause the player to malfunction.

The player is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the player itself has been turned off.

If you are not going to use the player for a long time, be sure to disconnect the power supply. To remove the AC power adaptor from the wall outlet, grasp the adaptor plug itself; never pull the cord.

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.

1. SERVICING NOTES ............................................... 3

2. GENERAL ................................................................... 4

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 5

3-2. Cabinet (Upper) Sub Assy............................................... 5

3-3. Cabinet (Lower) Assy...................................................... 6

3-4. Battery Block Sub Assy................................................... 6

3-5. MAIN Board.................................................................... 7

3-6. LCD Block Sub Assy ...................................................... 7

3-7. HDD Unit, HDD Board ................................................... 8

4. TEST MODE.............................................................. 9

5. DIAGRAMS

5-1. Block Diagram –MAIN Section (1/2) – .......................... 16

5-2. Block Diagram –MAIN Section (2/2) – .......................... 17

5-3. Block Diagram –KEY/POWER SUPPLY Section – ....... 18

5-4. Printed Wiring Board

– MAIN Section (Component Side) – ............................. 20

5-5. Printed Wiring Board

– MAIN Section (Conductor Side) –............................... 21

5-6. Schematic Diagram –MAIN Section (1/7) – ................... 22

5-7. Schematic Diagram –MAIN Section (2/7) – ................... 23

5-8. Schematic Diagram –MAIN Section (3/7) – ................... 24

5-9. Schematic Diagram –MAIN Section (4/7) – ................... 25

5-10. Schematic Diagram –MAIN Section (5/7) –................... 26

5-11. Schematic Diagram –MAIN Section (6/7) –................... 27

5-12. Schematic Diagram –MAIN Section (7/7) –................... 28

5-13. Printed Wiring Board – HDD Section – ......................... 29

5-14. Schematic Diagram – HDD Section –............................ 29

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

6. EXPLODED VIEW ................................................... 42

7. ELECTRICAL PARTS LIST................................ 43

SECTION 1

SERVICING NOTES

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UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree 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.

• Replacement of CXR704060-201GA (IC1003),

MBM29SL800BE-90PBT (IC1101), S1R72003BOOA100 (IC2001), CXR710160-211GH (IC3001), CXD1616GH (IC7001) and EDL1216CASA-10L-E (IC7002) used in this set requires a special tool.

System requirements

Computer

Operating System

Display

Others

Notes

•

SonicStage is not supported by the following environments:

– Operating systems other than those the indicated above – Personally constructed PCs or operating systems – An environment that is an upgrade of the original manufacturer-installed operating system – Multi-boot environment – Multi-monitor environment – Macintosh

•

We do not guarantee trouble-free operation on all computers that satisfy the system requirement.

•

The NTFS format of Windows XP/Windows 2000 Professional can be used only with the standard (factory)

settings.

•

For Windows 2000 Professional users, install Service Pack 3 or later version before using the software.

•

We do not guarantee trouble-free operation of the system suspend, sleep, or hibernation function on the

computers.

IBM PC/AT or Compatible

• CPU: Pentium II 400 MHz or higher (Pentium III 450 MHz or higher is

recommended.)

• Hard disk drive space: 200 MB or more (1.5 GB or more is recommended.) (The

amount of space will vary according to the Windows version and the number of music les stored on the hard disk.)

• RAM: 64 MB or more (128 MB or more is recommended.) Others • CD drive (capable of digital playback by WDM)

• Sound Board

• USB port (Hi-Speed USB is supported.)

Factory installed: Windows XP Media Center Edition 2004/Windows XP Media Center Edition/ Windows XP Professional/Windows XP Home Edition/Windows 2000 Professional/ Windows Millennium Edition/Windows 98 Second Edition

High Color (16 bit) or higher, 800 600 dots or better (1024 × 768 dots or better is recommended.)

• Internet access: for Web registration, EMD services and CDDB

• Windows Media Player (version 7.0 or higher) installed for playing WMA les

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SECTION 2

GENERAL

Guide to Parts and Controls

Player

1234567

1i

(headphones)/LINE OUT jack

2M, m, ., > 3



MENU button



MODE button



VOLUME +*/– buttons

6Nx

(play/stop) button



Hole for hand strap**



USB cradle connector



BUILT-IN BATTERY switch



HOLD switch

* This button has a tactile dot. ** You can attach your own hand strap.

buttons

This section is extracted from instruction manual.

Player display

qa qs

qf qg qh qj qk w;ql



Track number indicator



Character information display



Bookmark indicator



Playback progress bar



Playback indicator



Playing time



Repeat indicator



Play mode indicator Sound indicator



Battery indicator



Bit rate

About the serial number

The serial number provided for this player is required for the customer registration. The number is on a label on the rear of the player.

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. CABINET (UPPER) SUB ASSY

(Page 5)

3-3. CABINET (LOWER) ASSY

(Page 6)

3-4. BATTERY BLOCK SUB ASSY

(Page 6)

3-5. MAIN BOARD

(Page 7)

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SECTION 3

DISASSEMBLY

3-6. LCD BLOCK SUB ASSY

(Page 7)

Note: Follow the disassembly procedure in the numerical order given.

3-7. HDD UNIT, HDD BOARD

3-2. CABINET (UPPER) SUB ASSY

cabinet (upper) sub assy

(Page 8)

screw (M1.4)

flexible board (CN5002)

screw (M1.4)

escutcheon (cradle)

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)

3-3. CABINET (LOWER) ASSY

Note :When install the cabinet (lower) assy,

adjust the position of two switches (S5009, S9501) and knob (batt, hold).

S9501

S5009

Remove the cabinet (lower) assy in the direction of arrow.

knob (hold)

knob (batt)

3-4. BATTERY BLOCK SUB ASSY

toothed lock screw (M1.4)

battery block sub assy

connector (CN9501

3-5. MAIN BOARD

sheet (insulating HDD flexible)

flexible board (CN100)

sheet (SHIELD HDD)

MAIN board

three toothed screws (M1.4)

flexible board (CN5003)

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3-6. LCD BLOCK SUB ASSY

Remove two solders.

claw

sheet (damper)

LCD block sub assy

claw

flexible board (CN5001)

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3-7. HDD UNIT, HDD BOARD

Remove the HDD unit in the direction of arrow.

HDD board Note : Extraction and insertion of a HDD board is

performed perpendicularly.

SECTION 4

TEST MODE

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1. OUTLINE

For the LCD display , the LCD on the remote commander is shown, but the contents of LCD display on the main unit are same.

Power supply voltage : 3.65 to 3.75 V Volume : 24 SOUND EQ : OFF AVLS : OFF [HOLD] switch : OFF Set states : horizontal states

2. SETTING THE TEST MODE

1. Supply power to the set.

2. Switch-on the [HOLD] switch on the main unit.

3. Operate as follows.

• When use only main unit

While pressing the [MODE] key on the main unit, press the key on the main unit as following order.

> → > → . → . → > → . → > → .

→ M → m

• When use the main unit and remote commander

While pressing the [MODE] key on the main unit, press the key on the remote commander as following order.

> → > → . → . → > → . → > → .

→ + → –

4. Switch-off the [HOLD] switch on the main unit and enter the test mode.

3. RELEASING THE TEST MODE

Press the [SET UP] key on the main unit or commander for 1.5 seconds or more, turn off the power and release the test mode.

4. CONFIGURATION OF THE TEST MODE

Flow of the test mode:

F/W version display

jog

Start

Automatic

Finish Result

jog

Major item

jog

Minor item

jog

Major item switching:

jog

Minor item switching:

key

x key on the remote

[VOL +/--]

jog

5. OPERATION OF THE TEST MODE 5-1. Power 5-1-1. Power supply voltage check

This mode is used in case power supply voltage in the state where all power supply lines (1.2 V/1.5 V/1.8 V/2.0 V/2.4 V/3.3 V/VSTBY/ VDC) are starting is checked.

Checking method:

1. Enter the test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “POWER”.

LCD display of the remote commander

POWER

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “V CHK”.

LCD display of the remote commander

V CHK

4. Press the u jog, “START” is displayed and all power supply lines are started.

LCD display of the remote commander

START

5. Press the [DISPLAY] key, “HD OFF/ON” is displayed. Each time [DISPLAY] key is pressed, hard disk drive power supply ON/

OFF switch is performed.

LCD display of the remote commander

HD OFF/ON

6. Press the x key, return to minor item selection screen.

5-1-2. Consumption current (read state) check

This mode is used in case consumption current (read state) in the state where the hard disk drive has booted is checked.

Checking method:

1. Enter the test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “POWER”.

LCD display of the remote commander

POWER

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “A RD”.

LCD display of the remote commander

A RD

4. Press the u jog, “READY?” is displayed. In this state, Each time [DISPLAY] key is pressed, EL back light ON/OFF switch is performed.

LCD display of the remote commander

READY?

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5. Press the u jog, “READ” is displayed and hard disk drive becomes read state. After 10 seconds, “FIN” is displayed automatically and read state is completed.

LCD display of the remote commander

READ

FIN

6. Press the x key, return to minor item selection screen.

5-1-3. Consumption current (write state) check

This mode is used in case consumption current (write state) in the state where the hard disk drive has booted is checked.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “POWER”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

POWER

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “A WR”.

LCD display of the remote commander

A WR

4. Press the u jog, “READY?” is displayed. In this state, Each time [DISPLAY] key is pressed, EL back light ON/OFF switch is performed.

LCD display of the remote commander

READY?

5. Press the u jog, “WRITE” is displayed and hard disk drive becomes write state. After 10 seconds, “FIN” is displayed automatically and write state is completed.

LCD display of the remote commander

WRITE

FIN

6. Press the x key, return to minor item selection screen.

5-2. Audio

The VOLUME + key on the main unit or [PLAY MODE] on the remote commander performs switch of HP/LINE. While playing the audio track, it's in a repeat state. If x key is pressed, it’s stopped.

Setting method of the audio test mode:

1. The data for audio test mode is copied to hard disk drive.

2. Enter the test mode.

3. Press the > jog to display major item, and turn the VOL +/– jog to select the “AUDIO”.

LCD display of the remote commander

AUDIO

4. Press the jog to select the “TESTLD”.

> jog to display minor item, and turn the VOL +/–

LCD display of the remote commander

TESTLD

5. Press the u jog, “START” is displayed. Then automatically reboot.

LCD display of the remote commander

START

6. After reboot, narrowing-down screen “Artist” is checked and enter the test mode. Audio test mode (5-2-1 to 5-2-8) is performed in this state.

5-2-1. Output check

“1 kHz 0 dBs L-ch/R-ch” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the jog to select the “AUDIO”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “OUTPUT”.

LCD display of the remote commander

OUTPUT

4. Press the u jog, “START” is displayed and “1 kHz 0 dBs L-ch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, MUTE ON/OFF switch is performed.

LCD display of the remote commander

START

5. Press the x key, return to minor item selection screen.

5-2-2. S/N check

“Infinity Zero” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “AUDIO”.

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “SN”.

LCD display of the remote commander

4. Press the u jog, “START” is displayed and “Infinity Zero” audio signal is outputted.

LCD display of the remote commander

START

5. Press the x key, return to minor item selection screen.

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5-2-3. Frequency characteristic check

“20 Hz/20 kHz/100 Hz/10 kHz 0 dBs L-ch/R-ch” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the jog to select the “AUDIO”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “F 1”.

LCD display of the remote commander

F 1

4. Press the u jog, “START” is displayed and “20 Hz 0 dB s L-ch/R-ch” audio signal is outputted.

LCD display of the remote commander

START

5. Press the x key , retur n to minor item selection screen.

6. Turn the VOL +/– jog to select the “F 2”.

LCD display of the remote commander

5-2-4. Channel separation check

“1 kHz 0 dBs L-ch/1 kHz 0 dBs R-ch” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the jog to select the “AUDIO”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “SEP LR”.

LCD display of the remote commander

SEP LR

4. Press the u jog, “START” is displayed and “1 kHz 0 dBs L-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, V -SUR switch is perfor med.

LCD display of the remote commander

START

5. Press the x key , return to minor item selection screen.

6. Turn the VOL +/– jog to select the “SEP RL”.

LCD display of the remote commander

F 2

7. Press the u jog, “START” is displayed and “20 kHz 0 dBs L-ch/R-ch” audio signal is outputted.

LCD display of the remote commander

START

8. Press the x key , retur n to minor item selection screen.

9. Turn the VOL +/– jog to select the “F 3”.

LCD display of the remote commander

F 3

10. Press the u jog, “START” is displayed and “100 Hz 0 dBs L-ch/R-ch” audio signal is outputted.

LCD display of the remote commander

START

11. Press the x key, return to minor item selection screen.

12. Turn the VOL +/– jog to select the “F 4”.

LCD display of the remote commander

F 4

13. Press the u jog, “START” is displayed and “10 kHz 0 dBs L-ch/R-ch” audio signal is outputted.

LCD display of the remote commander

START

14. Press the x key, return to minor item selection screen.

SEP RL

7. Press the u jog, “START” is displayed and “1 kHz 0 dBs R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, V -SUR switch is perfor med.

LCD display of the remote commander

START

8. Press the x key , return to minor item selection screen.

5-2-5. Maximum output check

“1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “AUDIO”.

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “MAXOUT”.

LCD display of the remote commander

MAXOUT

4. Press the u jog, “START” is displayed and “1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, AVLS ON/OFF switch is performed.

LCD display of the remote commander

START

5. Press the x key , return to minor item selection screen

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5-2-6. SOUND EQ check

“100 Hz/250 Hz/630 Hz/1.6 kHz/4 kHz/10 kHz –20 dBs L-ch/Rch” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the jog to select the “AUDIO”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “EQ 1”.

LCD display of the remote commander

EQ 1

4. Press the u jog, “ST ART” is displayed and “100 Hz –20 dBs L- ch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, EQ MAX/MIN switch is performed.

LCD display of the remote commander

START

5. Press the x key, return to minor item selection screen..

6. Turn the VOL +/– jog to select the “EQ 2”.

LCD display of the remote commander

EQ 2

7. Press the u jog, “ST ART” is displayed and “250 Hz –20 dBs L- ch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, EQ MAX/MIN switch is performed.

LCD display of the remote commander

15. Turn the

VOL +/– jog to select the “EQ 5”.

LCD display of the remote commander

EQ 5

16. Press the u jog, “START” is displayed and “4 kHz –20 dBs L- ch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, EQ MAX/MIN switch is performed.

LCD display of the remote commander

START

17. Press the x key, return to minor item selection screen..

18. Turn the VOL +/– jog to select the “EQ 6”.

LCD display of the remote commander

EQ 6

19. Press the u jog, “ST AR T” is displayed and “10 kHz –20 dBs L- ch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, EQ MAX/MIN switch is performed.

LCD display of the remote commander

START

20. Press the x key, return to minor item selection screen.

5-2-7. BEEP check

BEEP sound is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the jog to select the “AUDIO”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

START

8. Press the x key, return to minor item selection screen..

9. Turn the VOL +/– jog to select the “EQ 3”.

LCD display of the remote commander

EQ 3

10. Press the u jog, “STAR T” is displayed and “630 Hz –20 dBs Lch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, EQ MAX/MIN switch is performed.

LCD display of the remote commander

START

11. Press the x key, return to minor item selection screen..

12. Turn the VOL +/– jog to select the “EQ 4”.

LCD display of the remote commander

EQ 4

13. Press the u jog, “START” is displayed and “1.6 kHz –20 dBs L-ch/R-ch” audio signal is outputted. In this state, Each time [DISPLAY] key is pressed, EQ MAX/MIN switch is performed.

LCD display of the remote commander

START

14. Press the x key, return to minor item selection screen..

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “BEEP”.

LCD display of the remote commander

BEEP

4. Press the u jog, “START” is displayed and BEEP sound is outputted.

LCD display of the remote commander

START

5. Press the x key, return to minor item selection screen.

5-2-8. Sound pressure regulation level check

“1 kHz 0 dBs L-ch/R-ch” audio signal is outputted.

Checking method:

1. Enter the audio test mode.

2. Press the jog to select the “AUDIO”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

AUDIO

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “SPL”.

LCD display of the remote commander

SPL

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4. Press the u jog, “START” is displayed and “1 kHz 0 dBs L-ch/R-ch” audio signal is outputted.

LCD display of the remote commander

START

5. Press the x key , retur n to minor item selection screen.

5-3. Others 5-3-1. G-sensor check

X/Y/Z-axis direction is checked.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “G TEST”.

LCD display of the remote commander

G TEST

4. Press the u jog, X-axis direction is displayed.

LCD display of the remote commander

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “CLOCK”.

LCD display of the remote commander

CLOCK

4. Press the u jo g, “STAR T” is displayed. Then “OK” or “NG” is displayed automatically.

LCD display of the remote commander

START

5. Press the x key , return to minor item selection screen.

5-3-3. Key check

LCD display corresponding to the pushed key is performed.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

OTHERS

X: ***

***

: A/D value (hexadecimal)

Note: “NG” is displayed when the G-sensor has broken (press the x key,

return to minor item selection screens).

LCD display of the remote commander

5. Press the u jog, Y-axis direction is displayed (press the x key, return to minor item selection screens).

LCD display of the remote commander

Y: ***

***

: A/D value (hexadecimal)

6. Press the u jog, Z-axis direction is displayed (press the x key, return to minor item selection screens).

LCD display of the remote commander

Z: ***

***

: A/D value (hexadecimal)

7. Press the x key , retur n to minor item selection screen.

5-3-2. Clock check

Clock operation is checked.

Checking method:

1. Enter the test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “OTHERS”.

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “KEY CH”.

LCD display of the remote commander

KEY CH

4. Press the u jog, “START” is displayed and LCD display corresponding to the pushed key is performed. Press on all the keys of main unit displays “SET OK”. Press on all the keys of remote commander displays “RMC OK”.

Key of LCD Key of LCD

main unit display remote commander displa y

Bx PLAY u R PLAY

SET UP SETUP x R STOP

MODE MODE > R FR

> FF . R REW . REW P MODE R PMD

M UP SOUND R SND m DOWN DISPLAY R DISP

VOLUME + VOL+ VOL + R VOL+ VOLUME – VOL– VOL – R VOL–

+R FDUP – R FDDW

5. Switch-on the [HOLD] switch on the main unit. Then Switch-of f the [HOLD] switch on the main unit, “FMTOK?” is displayed.

LCD display of the remote commander

FMTOK?

6. Press the u jog, format of hard disk drive is performed (press the x key , return to minor item selection screens). Then “OK” or “NG” is displayed automatically.

7. Press the x key , return to minor item selection screen.

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5-3-4. LCD display check

LCD display is checked.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “LCD 1”.

LCD display of the remote commander

LCD 1

4. Press the u jog, LCD all segments of main unit and remote commander are turned on.

5. Press the x key to display minor item, and turn the VOL +/– jog to select the “LCD 2”.

LCD display of the remote commander

LCD 2

6. Press the u jog, LCD all segments of main unit and remote commander are turned off.

7. Press the x key to display minor item, and turn the VOL +/– jog to select the “LCD 3”.

LCD display of the remote commander

5. “–X” is displayed. Main unit is fixed so that 2 of fig.1 may become downward and press the u jog.

LCD display of the remote commander

-X

6. “+Y” is displayed. Main unit is fixed so that 3 of fig.1 may become downward and press the u jog.

LCD display of the remote commander

7. “–Y” is displayed. Main unit is fixed so that 4 of fig.1 may become downward and press the u jog.

LCD display of the remote commander

-Y

8. “+Z” is displayed. Main unit is fixed so that 5 of fig.1 may become downward and press the u jog.

LCD display of the remote commander

9. “–Z” is displayed. Main unit is fixed so that 6 of fig.1 may become downward and press the u jog.

LCD display of the remote commander

-Z

LCD 3

8. Press the u jog, monochrome lattice is displayed on the LCD of main unit.

9. Press the x key to display minor item, and turn the VOL +/– jog to select the “LCD 4”.

LCD display of the remote commander

LCD 4

10. Press the u jog, monochrome lattice (reverse version of step

8) is displayed on the LCD of main unit.

11. Press the x key , return to minor item selection screen.

5-3-5. G-sensor adjustment

X/Y/Z-axis direction is adjusted.

Adjustment method:

1. Enter the test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “OTHERS”.

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “G CLB”.

LCD display of the remote commander

G CLB

4. Press the u jog, “+X” is displayed. Main unit is fixed so that 1 of f ig.1 may become downward and press the u jog.

LCD display of the remote commander

10 . “CALIB” is displayed. Press the u jog, G-sensor is adjusted.

Then “FIN”, “DAT NG” or “SEN NG” is displayed automatically.

LCD display of the remote commander

CALIB

FIN

FIN : adjusted normally. DAT NG : The data for performing a calibration is faulty. SEN NG : The value acquir ed from the G-sensor is f aulty.

11. Press the

x key , r eturn to minor item selection screen.

Fig.1 Axis direction of G-sensor adjustment

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5-3-6. G-sensor adjustment check

this mode checks that G-sensor adjustment is performed or not performed.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

LCD display of the remote commander

> jog to display major item, and turn the VOL +/–

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “G CHK”.

LCD display of the remote commander

G CHK

4. Press the u jog, “STAR T” is displayed. Then “OK” or “YET” is displayed automatically.

LCD display of the remote commander

START

5. Press the x key , retur n to minor item selection screen.

5-3-7. Hard disk drive format

This mode is used when performing the format of hard disk drive.

Checking method:

1. Enter the test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “OTHERS”.

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “SC RD1”

LCD display of the remote commander

SC RD1

4. Press the u jog, “READY?” is displayed .

LCD display of the remote commander

READY?

5. Press the u jog, “READ” is displayed and first 1/3 sector of hard disk drive is read. This operation takes about 50 minutes. Then the number of error sector is displayed automatically.

LCD display of the remote commander

READ

******

6. Press the x key to display minor item, and turn the VOL +/– jog to select the “SC RD2”

LCD display of the remote commander

: number of error sector

SC RD2

7. Press the u jog, “READY?” is displayed .

LCD display of the remote commander

READY?

8. Press the u jog, “READ” is displayed and last 2/3 sector of hard disk drive is read. This operation takes about 100 minutes. Then the number of error sector is displayed automatically.

LCD display of the remote commander

Press the x key when canceling.

5-3-10. Language setting

Setting the language.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

LCD display of the remote commander

> jog to display major item, and turn the VOL +/–

OTHERS

3. Press the jog to select the “LANG”.

LCD display of the remote commander

> jog to display minor item, and turn the VOL +/–

LANG

4. Press the u jog. Press the [DISPLAY] key, language (JAP/ ENG/FRE/GER/ITA/SPA) is selected. Press the u jog, distination is entered. Press the x key when canceling.

5-3-11. Sound pressure regulation setting

Setting the sound pressure regulation.

Checking method:

1. Enter the test mode.

2. Press the > jog to display major item, and turn the VOL +/– jog to select the “OTHERS”.

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “SP SET”.

LCD display of the remote commander

SP SET

5. Press the x key, return to minor item selection screen.

5-3-13. SDRAM check

This mode is used for the check of SDRAM.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

LCD display of the remote commander

> jog to display major item, and turn the VOL +/–

OTHERS

3. Press the jog to select the “RAMCHK”.

LCD display of the remote commander

> jog to display minor item, and turn the VOL +/–

RAMCHK

4. Press the u jog, “STAR T” is displayed and SDRAM is checked. This operation takes about 20 seconds. After check ed, “OK” or “NG” is displayed automatically.

LCD display of the remote commander

START

5. Press the x key, return to minor item selection screen.

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3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “FORMAT”.

LCD display of the remote commander

FORMAT

4. Press the u jog, “START” is displayed and format of hard disk drive is performed. After performing format, “OK” or “NG” is displayed automatically.

LCD display of the remote commander

START

5. Press the x key , retur n to minor item selection screen.

5-3-8. Hard disk drive all sector read

All sector of hard disk drive is read.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

LCD display of the remote commander

> jog to display major item, and turn the VOL +/–

OTHERS

READ

******

9. Press the x key, retur n to minor item selection screen.

5-3-9. Destination setting

Setting the destination.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

LCD display of the remote commander

: number of error sector

> jog to display major item, and turn the VOL +/–

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “DEST”.

LCD display of the remote commander

DEST

4. Press the u jog. Press the [DISPLAY] key, destination (J1/ U2/CEX/CEK) is selected. Press the u jog, destination is entered.

4. Press the u jog. Press the [DISPLAY] key, sound pressure regulation ON/OFF is selected and press the u jog, sound pressure regulation ON/OFF is entered. Press the x key when canceling.

5-3-12. Factory setting

Factory setting is performed.

Checking method:

1. Enter the test mode.

2. Press the jog to select the “OTHERS”.

> jog to display major item, and turn the VOL +/–

LCD display of the remote commander

OTHERS

3. Press the > jog to display minor item, and turn the VOL +/– jog to select the “SHIP”.

LCD display of the remote commander

SHIP

4. Press the u jog , factory setting is performed. After the setting, “FIN” is displayed.

LCD display of the remote commander

FIN

1515

+ 35 hidden pages

Sony NWHD-1 Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

cabinet (upper) sub assy

battery block sub assy

MAIN board

LCD block sub assy

TEST MODE