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PCG-C1XS
(UC)
9-872-053-1
1
2000E1605-1
PCG-C1XS (UC)
Sony Corporation
Information Technology Company
9-872-053-11
English
2000E1605-1
Printed in U.S.A.
© 2000 Sony Corporation
Published by VIAO Customer Link (Japan)
This manual and the constituent data may not be
replicated, copied nor reprinted in whole or in part
without prior written authorization of Sony Corporation.
Notebook Computer
US Model
Canadian Model
PCG-C1XS
S400
9-872-053-11
Confidential
SERVICE MANUAL


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Information in this document is subject to change without notice.
Sony and VAIO are trademarks of Sony. Intel logo and Intel Inside
logo are registered trademarks of Intel Corporation. Pentium MMX
is a trademark of Intel Corporation. Microsoft, MS-DOS, Windows,
the Windows 95 and Windows 98 logo are trademarks of Microsoft
Corporation.
All other trademarks are trademarks or registered trademarks of
their respective owners. Other trademarks and trade names may be
used in this document to refer to the entitles claiming the marks and
names or their produces. Sony Corporation disclaims any proprietary
interest in trademarks and trade names other than its own.
Service and Inspection Precautions
1. Obey precautionary markings and instructions
Labels and stamps on the cabinet, chassis, and components identify areas
requiring special precautions. Be sure to observe these precautions, as
well as all precautions listed in the operating manual and other associated
documents.
2. Use designated parts only
The set's components possess important safety characteristics, such as
noncombustibility and the ability to tolerate large voltages. Be sure that
replacement parts possess the same safety characteristics as the originals.
Also remember that the 0 mark, which appears in circuit diagrams and
parts lists, denotes components that have particularly important safety
functions; be extra sure to use only the designated components.
3. Always follow the original design when
mounting parts and routing wires
The original layout includes various safety features, such as inclusion of
insulating materials (tubes and tape) and the mounting of parts above the
printer board. In addition, internal wiring has been routed and clamped so
as to keep it away from hot or high-voltage parts. When mounting parts or
routing wires, therefore, be sure to duplicate the original layout.
4. Inspect after completing service
After servicing, inspect to make sure that all screws, components, and wiring
have been returned to their original condition. Also check the area around
the repair location to ensure that repair work has caused no damage, and
confirm safety.
5. When replacing chip components...
Never reuse components. Also remember that the negative side of tantalum
capacitors is easily damaged by heat.
6. When handling flexible print boards...
· The temperature of the soldering-iron tip should be about 270C.
· Do not apply the tip more than three times to the same pattern.
· Handle patterns with care; never apply force.
Caution: Remember that hard disk drives are easily damaged by
vibration. Always handle with care.
Caution Markings for Lithium/Ion Battery - The following or similar
texts shall be provided on battery pack of equipment or in both the
operating and the service instructions.
CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer. Discard used batteries according to the
manufacturer's instructions.
CAUTION: The battery pack used in this device may present a fire
or chemical burn hazard if mistreated. Do not disassemble, heat
above 100
°C (212°F) or incinerate.
Dispose of used battery promptly.
Keep away from children.
CAUTION: Changing the back up battery.
· Overcharging, short circuiting, reverse charging, multilation
or incineration of the cells must bi avoided to prevent one or
more of the following occurrences; release of toxic materials,
release of hydrogen and/or oxygen gas, rise in surface
temperature.
· If a cell has leaked or vented, it should be replaced
immediately while avoiding to touch it without any protection.
Confidential
­ 2 ­
PCG-C1XS (UC)


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­ 3 ­
PCG-C1XS (UC)
Confidential
SECTION 1
CHAPTER 1. OPERATION
1-1. Read Me First .................................................................. 1-1
1-2. VAIO C1 PictureBook Computer User Guide ................. 1-9
(to 1-56)
SECTION 2
CHAPTER 1. REMOVAL
1-1. Flowchart ......................................................................... 1-1
1-2. Main Electrical Parts Location Diagram ......................... 1-1
1-3. Removal ........................................................................... 1-2
1.
Keyboard Unit ................................................................. 1-2
2.
Cursor Sensor Module ..................................................... 1-2
3.
Parm Rest Sub Assy ......................................................... 1-3
4.
SWX-35 Board ................................................................ 1-3
5.
SWX-40 Board ................................................................ 1-4
6.
Speaker (With Harness) ................................................... 1-4
7.
IFX-82 Board ................................................................... 1-5
8.
V/L Rechargeable Battery ................................................ 1-5
9.
HDD (12.0 G) Assy ......................................................... 1-6
10. MBX-26 Board ................................................................ 1-6
11. DC Fan (With Heat Sink ) ............................................... 1-7
12. PC Card Connector (Ejector) ........................................... 1-7
13. LCD Housing Assy .......................................................... 1-8
14. CNX-83 Board ................................................................. 1-8
15. Bezel Assy ....................................................................... 1-9
16. LCD 1210 Assy ................................................................ 1-9
17. CCD 1210 Assy, Inverter Unit ....................................... 1-10
(to 1-10)
CHAPTER 2. SELF DIAGNOSTICS
2-1. Precautions ....................................................................... 2-1
2-2. Necessary Tools ............................................................... 2-1
2-3. Self-Diagnostics Program Start-up .................................. 2-1
2-4. Diagnostics Using the Self-Diagnostics Program ............ 2-1
2-5. Test Items ......................................................................... 2-2
2-6. On Other Tests that Cannot Be Supported ....................... 2-4
(to 2-4)
CHAPTER 3. BLOCK DIAGRAM ............................... 3-1
(to 3-2)
CHAPTER 4. FRAME HARNESS DIAGRAM ........ 4-1
(to 4-2)
CHAPTER 5. EXPLODED VIEWS AND
PARTS LIST
5-1. Main Section .................................................................... 5-1
5-2. LCD Section .................................................................... 5-3
5-3. Accessories ...................................................................... 5-5
(to 5-5)
TABLE OF CONTENTS
Section
Title
Page
·
Abbreviations
UC : US model / Canadian model


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1-1
PCG-C1XS
Confidential
SECTION 1
CHAPTER 1 -- OPERATION
Section 1-1: Read Me First
Read Me First
PCG-C1XS
Frequently Asked Questions (FAQs)
Q: How do I recover applications or drivers that came with my computer if
the files are corrupted or deleted?
A:
The Application Recovery CDs allow you to reinstall individual applications
and device drivers if they are corrupted or accidentally erased. You need to
connect the optional PCGA-CD51 CD-ROM drive to use the System and
Application Recovery CDs. Reinstalling an individual device driver or software
title may correct a problem you are experiencing with your computer, and you
may not need to recover the entire contents of your hard drive. If you do need to
reinstall all the software titles that shipped with your computer, use the System
Recovery CD(s).
You must be in Windows to run the Application Recovery CD(s). The application
will not run from DOS. If you have any questions on using the Application
Recovery CD(s), contact Sony Customer Support at http://www.sony.com/
pcsupport.
To use the Application Recovery CD(s)
1
Turn on your computer. If your computer is already on, close all applications.
2
When the Windows desktop appears, insert the Sony Application Recovery
CD in the CD-ROM drive. The Application Recovery utility loads
automatically.
3
When the Application Recovery menu appears, follow the on-screen
instructions to complete the recovery process.
Q:
Why isn't the CD-ROM drive reading a CD?
A:
After inserting a CD, you must wait a few seconds for the CD to be detected
before trying to access it. If your drive reads some CDs but not others, check the
shiny side of the disc for dirt or scratches. You may also need to clean the CD-
ROM drive lens with a CD-ROM cleaner.
Your system may include one or two Application Recovery CDs. If you have two Application
Recovery CDs, insert the first CD to run the Application Recovery program. You may be
prompted to insert the second CD, depending on the application you wish to restore.


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Read Me First
2
Q: How do I set up faxing capability in Windows® 98?
A:
Windows 98 does not provide a built-in fax utility. Sony has included the
Symantec WinFaxTM Basic Edition software for your faxing needs. To set up
WinFax Basic, click the Start button, point to Programs, point to SYMANTEC
WinFax Basic Edition, and then select Configure WinFax Basic Edition. Follow the
on-screen instructions to configure the fax utility.
Q: How do I change the video resolution of my display?
A:
From the Start menu, select Settings, and click Control Panel. Click the Display
icon and select Settings. Move the Screen area slider to change the resolution.
Q: Why does Windows lock up during shut down?
A:
Windows may not shut down properly for many reasons, including
incompatible or conflicting drivers, damaged files, or non-responsive hardware.
For troubleshooting information, you can search Windows 98 Help. From the Start
menu, select Help, click the Contents tab, click Troubleshooting, and then click
Windows 98 Troubleshooters. Click the subject for which you want information,
and then answer the questions that are appropriate for your problem.
Q: Why is my system running slowly?
A:
The speed varies depending on the number of applications that are open and
running. Close any applications that you are not currently using. Increasing the
system memory may also help. Sony computer supplies, accessories, and
peripherals can be purchased from your dealer or by contacting Sony at
http://www.sony.com/accessories. For information on installing memory, go to
http://www.ita.sel.sony.com/support/pc/.
Q: Why is there no sound in any application?
A:
There are independent controls for your system volume.
u
There is volume control
in the Windows task tray. Click the icon and slide
the level bar up to increase the volume.
u
In addition to adjusting the volume, check that the Mute check box is not
selected in the volume control
. Remove the check from the Mute box or
press the F3 key while holding down the F3 key.
u
If the volume is set to Minimum, press the F4 key while holding down the Fn
key, and then press the up arrow or the right arrow to turn up the volume.