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Access System Parameters

Navigate to MOD function → System Parameters → Machine Parameters and check MP7300-MP7399 range for oscilloscope-related parameters.

Document current parameter values before making changes

Reset Oscilloscope Parameters

Set MP7350 (Oscilloscope Configuration) to default value and cycle power to reinitialize the oscilloscope module.

Backup all machine parameters before resetting

Verify Communication

Check Diagnostics → Internal Communication → Oscilloscope Status to confirm successful configuration data login.

Monitor the status for at least 2-3 complete cycles

Restore Oscilloscope Settings

Reconfigure oscilloscope channels and trigger settings through Setup → Oscilloscope → Configuration menu if needed.

Check Internal Bus Status

Navigate to Diagnostics → System Info → Internal Bus Status and verify all communication modules show 'OK' status.

Do not attempt bus resets during active machining operations

Perform Communication Test

Execute internal communication test via MOD → Service → Communication Test → Internal Modules to isolate the failing component.

Reset Communication Interface

Set MP1010 (Internal Bus Reset) to 1, wait 10 seconds, then reset to 0 and cycle control power.

Ensure all axes are in safe position before communication reset

Verify Module Recognition

Check that oscilloscope module appears in System Info → Hardware Configuration after reset.

Check Hardware Status

Navigate to Diagnostics → Hardware Status → Internal Modules and verify oscilloscope module LED indicators and status codes.

Perform Module Self-Test

Execute MOD → Service → Hardware Test → Oscilloscope Module to run comprehensive hardware diagnostics.

Hardware tests may take several minutes to complete

Check Power Supply Voltages

Verify internal +5V and +12V supply voltages to oscilloscope module are within ±5% tolerance in Diagnostics → Power Supply Status.

Document Failure Evidence

Record all error codes, LED patterns, and test results for service technician escalation if hardware replacement is required.

Check Software Versions

Navigate to Help → TNC Info → Software Versions and document TNC software version and oscilloscope module firmware version.

Verify Compatibility Matrix

Cross-reference versions against HEIDENHAIN compatibility documentation to identify version conflicts.

Check HEIDENHAIN technical bulletins for known compatibility issues

Update Module Firmware

If compatible firmware is available, update oscilloscope module firmware through MOD → Service → Firmware Update → Internal Modules.

Never interrupt firmware update process - ensure stable power supply

Validate Post-Update

Verify alarm clearance and oscilloscope functionality after firmware update completion.