HP 250C - Manual (Page 175)

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 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.