Limited One-Year Warranty - HP -28S Manual

The repeating test proceeds automatically. (If the test doesn't
proceed, you probably pressed
ION
ICY) by mistake. This starts a
different test, used at the factory, that requires input from the
keyboard. Quit this self-test by executing a System Halt, de-
scribed in step 4 below, and then start the correct repeating test.)
3. Watch for the test message. The test shows horizontal and verti-
cal lines, a blank display, a random pattern, and then it displays
the result of the test.
• The message
01(-2:3S
indicates that the calculator passed the
test.
• A message such as
1 FA I L
indicates that the calculator failed
the test. The number indicates the nature of the failure. When
you send the calculator for service, include the failure number
and printed output (if available).
If you interrupt the repeating test by pressing a key, the test
returns a failure message because it didn't expect any key-
strokes.
Such a failure message doesn't indicate a problem with
the calculator.
4. Halt the test by performing a System Halt.
a.
Press and hold
I
ON
I.
b.
Press
[!].
c.
Release
I
ON
I.
5. If the test returns a failure message,
and you didn't cause the fail-
ure by interrupting the test,
the calculator requires service. See
"Limited One-Year Warranty" below and "If the Calculator Re-
quires Service" on page 293.
Limited One-Year Warranty
What Is Covered
The calculator
(except for the batteries, or damage caused by the bat-
teries)
is warranted by Hewlett-Packard against defects in materials and
workmanship for one year from the date of original purchase.
If you sell
your unit or give it as a gift, the warranty is automatically transferred
to the new owner and remains in effect for the original one-year
A: Assistance, Batteries, and Service 291