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Connection
Keyboard (USB style)
Capabilities
Mouse (PS/2 style)
Two USB ports
Three IEEE 1394 Ports (1 - 4 Pin, 2 - 6 Pin)
Serial port
Parallel (printer) Port
MIDI/game Port
Headphone Out
Line In
Microphone In
Monitor Connector
Video Out
S Video Out
Modem line (RJ-11)
Phone line (RJ-11)
S Link (Control-A1) Port
Supplied
Sony 104-key keyboard,Sony two-button mouse
Accessories
RJ-11 Phone Cable, Power Cord
Model Number
PCV-E302DS
PCV-E308DS
Processor
350 MHz PentiumII 450 MHz PentiumII
Hard Disk Drive
10.2 GB
13.6 GB
DVD-ROM Drive
Reads DVD data 2X-5X variable transfer rate. Reads CD data
from 10X to 24X variable transfer rate*
DVD-ROM Laser
Semiconductor Laser GaA1As, 650nm (
±15 nm) wave length;
0.6mw (typ.) output power
Memory Modules
PCV-E302-64 MB SDRAM expandable to 256 MB, 8MB Video RAM
PCV-E308-128MB SDRAM expandable to 256 MB,8MB Video RAM
512 KB Pipeline Burst SRAM L2 Cache
MPEG
"SonyTuned" MPEG Digital Video supports full-screen and DVD playback
Graphics
3D AGP graphics acceleration (64-bit Matrox G200)
Sound Capabilities
Dynamic High Fidelity 3D PCI Audio Sound (Aureal)
Diskette Drive
3.5" 1.44 MB MFDD
Modem
56 Kbps modem/14.4 Kbps FAX modem with V.90 Technology
Expansion
One PCI slot
Capabilities
PERSONAL COMPUTER VAIO
9-974-498-11
Specifications
PCV
-E302DS/308DS
(US)
9-974-498-11
98J205-1
PCV-E302DS/308DS (US)
Sony Corporation
Information Technologies of America
9-974-498-11
English
98J205-1
Printed in USA
© 1998.10
Published by Engineering & Manufacturing Division
PCV-E302DS/308DS
SERVICE MANUAL
US Model
* Data on a CD-ROM disc is read at a variable transfer rate, ranging from
10X at the innermost track to 24X at the outermost track (the data transfer
standard 1X rate is 150 kbytes/s). The average data transfer rate is 17X
(2550 kbytes/s).


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v
v
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 precau-
tions, as well as all precautions listed in the
operating manual and other associated docu-
ments.
2. Use designated parts only
The sets components possess important safety
characteristics, such as noncombustibility and
the ability to tolerate large voltages. Be sure
that replacement parts posses the same safety
characteristics as the originals. Also remember
that the ! mark, which appears in circuit
diagrams and parts lists, denotes components
that have particularly important safety func-
tions; 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 materi-
als (tubes and tape) and the mounting of parts
above the printer board. In addition, internal
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 trade-
marks of Intel Corporation. i486 and Pentium are
trademarks of Intel Corporation. Microsoft, MS-
DOS, Windows and the Windows 95 logo are
trademarks of Microsoft Corporation.
All other trademarks are trademarks or regis-
tered trademarks of their respective owners.
Other trademarks and trade names may be used
in this document to refer to the entities claiming
the marks and names or their products. Sony
Corporation disclaims any proprietary interest in
trademarks and trade names other than its own.
Service and Inspection Precautions
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 point
boards...
·The temperature of the soldering-iron temp
shoud be about 270
°C.
· 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.
-2-


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TABLE OF CONTENTS
-3-
Section
Title
Page
Chapter 1. Operation
1-1
VAIO MicroTower Read Me First .................................... 1-1
(to 1-12)
1-2
VAIO MicroTower User Guide ...................................... 1-13
(to 1-62)
Chapter 2.
PCV-E302/E308 Motherboard Description .................. 2-1
(to 2-4)
Chapter 3.
Frame Harness Connector List ................................... 3-1
(to 3-6)
Chapter 4.
Frame Harness Assembly ........................................... 4-1
(to 4-8)
Chapter 5.
Frame Harness Diagram .............................................. 5-1
(to 5-2)
Chapter 6.
Exploded View and Parts List ..................................... 6-1


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i
VAIO MicroTower
User Guide
®
®


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Notice to Users
©
1998 Sony Electronics Inc. Reproduction
in whole or in part without written
permission is prohibited. All rights
reserved. This manual and the software
described herein, in whole or in part, may
not be reproduced, translated, or reduced
to any machine-readable form without
prior written approval.
SONY ELECTRONICS INC. PROVIDES
NO WARRANTY WITH REGARD TO
THIS MANUAL, THE SOFTWARE, OR
OTHER INFORMATION CONTAINED
HEREIN AND HEREBY EXPRESSLY
DISCLAIMS ANY IMPLIED
WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR ANY PARTICULAR
PURPOSE WITH REGARD TO THIS
MANUAL, THE SOFTWARE, OR SUCH
OTHER INFORMATION. IN NO EVENT
SHALL SONY ELECTRONICS INC. BE
LIABLE FOR ANY INCIDENTAL,
CONSEQUENTIAL, OR SPECIAL
DAMAGES, WHETHER BASED ON
TORT, CONTRACT, OR OTHERWISE,
ARISING OUT OF OR IN CONNECTION
WITH THIS MANUAL, THE SOFTWARE,
OR OTHER INFORMATION
CONTAINED HEREIN OR THE USE
THEREOF.
Sony Electronics Inc. reserves the right to
make any modification to this manual or
the information contained herein at any
time without notice. The software
described herein may also be governed by
the terms of a separate user license
agreement.
Sony, VAIO, VAIO Smart, i.LINK, S-Link,
and the VAIO logo are trademarks of Sony.
Windows and the Windows logo are
registered trademarks of Microsoft
Corporation. Intel and Pentium are
trademarks of Intel Corporation. K56flex is
a trademark of Lucent Technologies Inc.
and Rockwell International. All other
trademarks are trademarks of their
respective owners.
Safety Information
Owners Record
The model number and serial number are
located on the back of your Sony computer.
Record the model and serial numbers in
the space provided here. Refer to the model
and serial number when you call your
Sony Service Center.
Model Number:________________________
Serial Number:________________________
WARNING
u
To prevent fire or shock hazard, do
not expose your Sony computer to
rain or moisture.
u
Never install modem or telephone
wiring during a lightning storm.
u
Never install telephone jacks in wet
locations unless the jack is specifically
designed for wet locations
u
Never touch uninsulated telephone
wire or terminals unless the telephone
line has been disconnected at the
network interface.
u
Use caution when installing or
modifying telephone lines.
u
Avoid using the modem during an
electrical storm.
u
Do not use the modem or a telephone
to report a gas leak in the vicinity of
the leak.
! The use of optical instruments
with this product will increase eye
hazard.
WARNING
Sony VAIO User's Guide