HP Designjet 2800/3800cp Service Manual - Page 105

If This Test Passes, Do Not Replace The Front-panel, Passes

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D07. Front Panel The purpose of this test is to verify the operation of the front-panel keys. IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE FRONT-PANEL ASSEMBLY. IF THIS TEST PASSES, DO NOT REPLACE THE FRONT-PANEL ASSEMBLY. Perform the Front Panel test as follows: 1 In the Diagnostics submenu, scroll to "D07 Front Panel" and press Enter. Diagnostics D07 Front Panel 2 All the LEDs on the front-panel will illuminate and you will be requested to press each key on the front panel separately. If you do not press the required key within 10 seconds, the "D0701 Fail" message is displayed on the front-panel. 3 If all the keys are pressed and the test passes, the "D0700 OK" message is displayed on the front-panel and all the LEDs on the front-panel will go out. IF THIS TEST PASSES, DO NOT REPLACE THE FRONT-PANEL ASSEMBLY. 4 If any of the keys are pressed but not recognized then the test has failed and the "D0701 Fail" message will displayed on the front-panel after 10 seconds. If the test fails, to resolve the problem, try one of the following: 1 Check that the cable for the Front Panel Assembly is connected to the Electronics Module. 2 Replace the Front Panel Assembly ' page 8-24. Service Tests HP DesignJet CP Series Printers 4-19

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Service Tests
4-19
HP DesignJet CP Series Printers
D07. Front Panel
The purpose of this test is to verify the operation of the front-panel keys.
IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE
REPLACING THE FRONT-PANEL ASSEMBLY. IF THIS TEST
PASSES, DO NOT REPLACE THE FRONT-PANEL ASSEMBLY.
Perform the Front Panel test as follows:
1
In the Diagnostics submenu, scroll to “D07 Front Panel” and press
Enter
.
Diagnostics
D07 Front Panel
2
All the LEDs on the front-panel will illuminate and you will be requested
to press each key on the front panel separately. If you do not press the
required key within 10 seconds, the “D0701 Fail” message is displayed
on the front-panel.
3
If all the keys are pressed and the test passes, the “D0700 OK” message
is displayed on the front-panel and all the LEDs on the front-panel will
go out.
IF THIS TEST PASSES, DO NOT REPLACE THE FRONT-PANEL
ASSEMBLY.
4
If any of the keys are pressed but not recognized then the test has failed
and the “D0701 Fail” message will displayed on the front-panel after 10
seconds.
If the test fails,
to resolve the problem, try one of the following:
1
Check that the cable for the Front Panel Assembly is connected to the
Electronics Module.
2
Replace the Front Panel Assembly
'
page 8-24.