Diagnostic Code 1: Display Segment; Diagnostic Code 2: Error History; Diagnostic Code 3: Cpu Test; Diagnostic Code 4: Not Used - Bennett 3000 Series Operation Manual

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4.2 DIAGNOSTIC CODE 1: DISPLAY SEGMENT TEST

Identifies failed segments in the Main and PPV Displays. Segments are the digital dots and dashes that

make up whole letters and numbers on the display.

1. Press 0, Mode to enter diagnostics Mode 00.

2. Press 1, Enter. Line 1 of the Main Display should show "PrESS" and line 2 should show "ENTEr" or

"PrS ENtr" on Volume only.

3. Press Enter to begin.

4. The display will show all dashes on one of the display segments. If any segments in that series are

blank the display is defective.

5. Press Enter repeatedly to cycle through all eight segments.

6. Press Cancel to exit this Diagnostics Code.

Displays the last 10 errors for the selected side.

1. Press 0, Mode to enter diagnostics Mode 00.

2. Press 2, Enter. Line 1 of the Main Display should show: "ERR XX" (XX is two-digit error code).

Line 2 will show "NO Err" or the numeric value of an error code.

3. Press Cancel to exit this code.

NOTE: Pressing +/- five times clears the error history on a selected side.

Deliberately introduces a fault into the arithmetic unit of the 719 Control Board's Central Processing

Unit (CPU) to test whether the CPU recognizes the fault.

1. Press 0, Mode to enter diagnostics Mode 00.

2. Press 3, Enter. Line 1 of the display should show "Error" and line 2 should show "99".

NOTE: If the display does not show "ERRROR 99" the test has failed.

3. Press Cancel to clear the error and exit the test.

This code is not supported in this application.

3000 Series Operation Manual

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