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TROUBLESHOOTING
The SELFTEST capability of the
HP
9133/340 consists of being able to select
and optionally loop on anyone selected test from the following choices:
NOTE: Since the RAM test
\I~ill
clear all parameters, some of which are
needE~d
for other tests, you can't switch arbitrarily from test to test.
The best
sequence is as follows:
1.
Turn off power.
2.
Select the RAM tHst using TABLE 1 to set the switches correctly.
(Refer to Figure 4-1 for jumper locations.)
3.
Turn on power.
Device will do all or part of power on self test
and will the n s tar t do
i
n g the RAM t est .
W hen the t est i s com pie t
I~
d ,
the self test LED should blink 5 times.
If it doesn't, the test
failed.
4.
Turn power off.
Select next test.
5.
Turn on power.
Device will do all or part of the power on
self test and will then start dOing the test specified.
When the
test is completed, the self test LED should blink 5 times.
If it
doesn't. the test failed.
6.
Now select the next test you want.
You can test anything but the
RAM test.
There is a 4-second wait between tests to "debounce"
while you are changing the switches.
When the test is completed,
the self test LED should blink 5 times.
It it doesn't, the test
failed.
7.
You can do step 6 over and over until all tests are performed
except the microprocessor RAM test.
LED FUNCTIONING
Start
1.
LED ON 4 seconds
2.
LED OFF .5 seconds
3.
LED ON during test
TEST PASSES
4.
LED ON/OFF 5 times
(.5 seconds each).
5.
Go to s tar
t .
-will stay here until test selection
-is the same for 4 seconds.
-test in progress
TEST FAILS
4 .
LED s t a y s ON.
5.
Go to start.
The results of a successful test are displayed by the FA UL T - LED blinking. A failure causes the LED to
stay on. Results are displayed for five seconds followed by a complete power-up seq uence.
4-4
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