Epson NB3s Troubleshooting Guide
Product Support Bulletin
Subject: Proper Method for Running Benchmark and Diagnostics Programs
EPSON
Date: 06/04/93
Page(s): 1 of 1
This bulletin describes the proper method for running any benchmark or diagnostics
programs. This applies to any computer system.
In most cases, the computer should be started using an MS-DOS boot diskette
that’s ‘clean’ The appropriate executable can then be run, either from diskette or hard drive.
There will be some exceptions to the above rule. In attempting to benchmark or
troubleshoot any add-on that requires a device driver (CD-ROM, local area network,
etc.), obviously the necessary device driver(s) must be loaded. Also, some
programs will require a minimum number of FILES or BUFFERS to be defined in
the CONFIG.SYS file. Such programs will usually display this requirement if they
are run without the necessary CONFIG.SYS file.
For the most consistent results, use the absolute minimal boot configuration that’s
allowed by the hardware being tested.
in other words, one with no CONFIG.SYS or AUTOEXEC.BAT files.
PSB No: S-0158
Originator: MWT
EPSON AMERICA, INC.
Product Support Bulletin
Subject: Epson NB3s LCD Unit Warranty Extension
EPSON
Date: 02/05/93
Page(s): 1 of 1
The purpose of this bulletin is to inform you of a change in the warranty period for
the Epson NB3s LCD Unit (part number B1-101).
Epson America, Inc. has made the decision to extend the warranty period for the
Epson NB3s LCD Unit. The warranty period is now extended to five years from
the date of purchase. Standard warranty claim procedures are to be followed for
failures. The normal warranty labor reimbursement and no charge parts exchange
will be given for these claims.
PSB No: S-0153
Originator: KAS
EPSON AMERICA, INC.
Product Support Bulletin
EPSON
Subject:
Date: 8/7/91
Page(s): 1 of 8
GENERAL
Q1.
A1.
Q2.
A2.
Epson NB3s Questions and Answers
PSB No:
Originator: MWT
What is the Epson NB3s?
The Epson NB3s is Epson’s first modern notebook computer. Epson actually
pioneered the notebook field back in 1982 with the HX-20. The NB3s offers
the full functionality of an AT-compatible computer, with excellent expansion
capabilities.
What are some of the standard features?
The Epson NB3s includes a 16 MHz 80386SX microprocessor; support for an
optional 80387SX numeric coprocessor; 1 MB of RAM (0 wait state on page
hit); 2 removable, rechargeable NiCad batteries; a 3.5”, 1.44MB floppy disk
drive; 640 x 480, paper-white VGA-compatible LCD; parallel/external FDD, RS232C serial and external VGA analog monitor ports; connector for an external
10-key numeric keypad; MS-DOS 4.01.
S-0130B
What are some of the options and expansion capabilities?
Q3.
The 1 MB of system RAM can be expanded to either 2MB or 5MB total; 20MB,
A3.
40MB and 60MB removable hard drive cartridges can be installed; and the
expansion unit which provides 2 16-bit, AT-type expansion slots, power supply
and a slot for a removable 120MB hard drive cartridge.
How much does the Epson NB3s weigh?
Q4.
A4.
5.8 pounds with the hard drive cartridge and battery installed. The Epson
NB3s and expansion unit together weigh 9.5 pounds. At 1.72” by 8.5” by
11.8”, the Epson NB3s fits easily in a standard briefcase.
PSB No: S-0130B
Page: 2 of 8
BATTERY
What kind of battery life can you expect from the Epson NB3s?
Q5.
A5.
Q6.
A6.
Q7.
A7.
Q8.
A8.
Testing has revealed, under typical operating conditions, an estimated battery
life of 1 to 1.5 hours. Depending on the configuration and usage, the battery
life could be more or less. Since 2 batteries are included, this equates to 2 to
3 hours of working time.
Are additional batteries available? How are the batteries charged?
Yes, additional batteries are available as an option. The batteries can be
charged in the Epson NB3s by either connecting the standard AC adapter or
installing the NB3s in the expansion unit. There is also an external battery
charger available that can charge up to 2 batteries at a time.
Can batteries be changed “on the fly”?
No! The Epson NB3s must be powered off before changing the battery.
Attempting to change it while the computer is powered on will damage the
battery or computer (possibly both) and void the warranty.
How long does it take to fully charge the battery?
In the Epson NB3s (either with the AC adapter or the expansion unit), it takes
5 hours with the computer turned off to fully charge the battery. When you’re
using the computer, it takes 8 hours for a full charge. The external charger
produces a full charge after 5 hours. Note that if you do not completely
charge a new battery and attempt to use the computer, you may experience
atypical operation.
Are there any other power supply options?
Q9.
A9.
Yes, an automotive cigarette lighter adapter is available.
Q10. How much do the batteries weigh?
A10. Approximately 8 ounces each.
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