Metrohm 732 IC Detector - Manual (Page 158)

5.4 Diagnostic tests
732 IC Detector / 733 IC Separation Center
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5.4.3 Checking working memory (RAM)
This diagnostic step executes a non-destructive test over the entire
area of the RAM content (working memory).
• Prepare instrument for diagnostic test (see section 5.4.2).
• If need be, press <9> key repeatedly until
diagnosis
>diag/RAM test
• <ENTER>
If no faults are found, the display shows:
>diag/RAM test
RAM test ok
• <ENTER>
diagnosis
>diag/keyboard test
5.4.4 Check keypad
With this diagnostic step all keys of the keypad are checked for func-
tionality.
• Prepare instrument for diagnostic test (see section 5.4.2).
• If need be, press <9> key repeatedly until
diagnosis
>diag/keyboard test
• <ENTER>
>diag/keyboard test
• Press all keys in succession and check the reaction on the display.
The display shows the corresponding matrix code for the pressed key. The matrix
code can be seen in the key table (e.g. the following display should appear if the
<CONFIG> key has been pressed).
diag/keyboard test
code: 2
• The test is quit by pressing the <CLEAR> key twice.
diagnosis
>diag/display test