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Appendix C ( SRS-1050 Testing
Page C-3
LCD Test
When you press the 2 on the
DTMF keypad, the LCD displays
a pattern of dark characters.
Missing dots, if any, will be
evident.
When you press the 3 on the
DTMF keypad, the LCD displays
the first set of display characters
supported by the set. Press 3
again to display the rest of the
supported display characters.
To exit from either test, press any
multifunction key, softkey, or
DTMF key.
Memory Tests
Pressing 4 on the numeric keypad
starts an automatic sequence of
tests, performing memory and line
tests in order.
The first of these tests writes to
and reads from all RAM locations.
If any error is detected, the test
sequence stops at that point and
reports by displaying an error
code on the display; for example,
SELF TEST (MEMORY/LINE TEST)
ERROR CODE (06)
(06) is only one example. Other
codes may appear in its place if
different errors are discovered.
Any error code display reflects an
error condition to be handled by
your System Administrator.
No other test requests are allowed
during this test. If any error is
detected, the test sequence stops
at that point and reports by
displaying an error code.
When the RAM test terminates
successfully, the Digital Set goes
immediately to the ROM access
test. Upon detection of an error,
the sequence stops and an error
code is displayed.
When the ROM access test
terminates successfully, the DTE
interface circuit test starts
automatically on sets that have
the optional data terminal adapter.
An error in this test is reported by
an error code in the LCD display.
When the DTE test terminates
successfully, the NT line test
starts automatically. An error in
this test is reported by an error
code in the LCD display.
If all tests terminate successfully,
the following display shows on
the LCD: