HP Designjet 250c Service Manual - Page 175

Electrical Test, System Errors

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Electrical Test This tests the main PCA and carriage PCA electronics. 1 In service mode 2: 230 250C Hold down the SHIFT key and press Electrical Test. Electrical Test Shift 330 350C Press Electrical Test. Electrical Test The Load Media LED (or the Ready LED, if you have already loaded media) turns off for about 50 seconds while the plotter performs the electrical test. The shift key does not act as a stop-the-test key for this test. Status. If the test does not find an error, the Load Media LED (or the Ready LED, if you have already loaded media) turns on again. Otherwise, an error is reported by an error code on the front panel. The error code is usually shown as a ISteady 1238I (for DesignJet 230 and 250C) or a ISteady 1389I (for DesignJet 330 and 350C) which indicates a system error. See ' System Errors, page 8Ć19 (for DesignJet 230 and 250C) or page 8Ć23 (for DesignJet 330 and 350C), to be able to correctly troubleshoot the failure, and to be able to include the information when you exchange the electronics module. C4699Ć90000 Troubleshooting 8Ć41

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230
250C
330
350C
8Ć41
Troubleshooting
C4699Ć90000
Electrical Test
This tests the main PCA and carriage PCA electronics.
1
In service mode
2:
Hold down the
SHIFT
key and press
Electrical Test
.
Electrical Test
Shift
Press
Electrical Test
.
Electrical Test
The
Load Media
LED (or the
Ready
LED, if you have already loaded media) turns off
for about 50 seconds while the plotter performs the electrical test.
The shift key does
not
act as a
stop-the-test
key for this test.
Status.
If the test does not find an error, the
Load Media
LED (or the
Ready
LED, if
you have already loaded media) turns on again. Otherwise, an error is reported by an
error code on the front panel. The error code is usually shown as a
I
Steady 1238
I
(for
DesignJet 230 and 250C) or a
I
Steady 1389
I
(for DesignJet 330 and 350C) which
indicates a system error. See
'
System Errors
, page 8Ć19
(for DesignJet 230 and 250C)
or page 8Ć23 (for DesignJet 330 and 350C)
,
to be able to correctly troubleshoot the
failure, and to be able to include the information when you exchange the electronics
module.