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Exchange a TIM

Request RMA  Send Diagnostic Data with Show Full Results Option along with System & TIMs Serial Numbers to Support.

Swapping a Failed TIM takes just minutes. All configuration and calibration data is automatically loaded via Guru™. Procedure to exchange Cassini Test Instrument Module (TIM) in 4 steps. Detailed step-by-step process available in the Cassini Reference Guide, Chapter 4: Service, Section 1: Exchanging a New or Repaired TIM

Step 1) Prepare for TIM Exchange

  • Import Cal Data into Guru from the email attachment sent to the site's primary maintenance manager or contact who opened the RMA (Filename = CalData_<serial#>.gzp)
  • Unlatch and Lower Testhead from Handler and Remove Fixture.
  • Choose System > Check from Main System Window (Fixture removed from Configuration)
  • Remove TIM From Shipping Box. Do Not Trash TIM Box, Keep For Return Shipment.

Step 2) Exchange TIM

  • Remove Failed TIM, Pull Top Latch Then Pull Bottom Handle to Release from the Testhead.
  • Perform System > Check (Instrument(s) Removed from Configuration)
  • Install New TIM in the same T-location labeled on TIM. Example:
    Slide TIM Horizontally Until Touching Testhead, Slide TIM Vertically Until In Position, Press Top Latch Down
  • Perform System > Check (Instrument(s) Added to Configuration). Start Warm Up Timer (20 minutes)

Step 3) Verify and Release to Production

  • Latch Diag/Cal Plate from Diagnostic Kit
  • Perform System > Check (Fixture Added to Configuration)
  • Open Configuration window ( System > Tester ) Perform Targeted Diags (Tester > Diagnose, Select Plans for Instrument Model #s)
    NOTICE! Wait for the TIM to warm up at least 20 minutes before running Diagnostics
  • If Diags Pass, Unlatch Diag/Cal Plate, Latch Fixture and Release to Production (Skip To Step 4)
  • To Confirm Recent Cal Data, Select Instrument from Config Window, RMB Menu Choose Calibration > Restore... > OK. If One or More Dates Do Not Appear, Import Cal Data (contact Manager) and Choose System > Startup. Perform Targeted Diags Again.
  • If Diags Fail, Run Full Diags, then Perform Targeted Calibration (TIM or Complete RF System)

Step 4) Document and Return Failed TIM

  • Prepare return shipping documents according to Return Shipment Instructions (RSI) (HTC, value, description)
  • Write Serial Number if not already included on RSI. Include any relevant information (Diag data, symptoms)
  • Ship Failed TIM in provided TIM Box. If a TIM Box is not available, follow these Safe Packing Instructions.

When to Recalibrate?

Never recalibrate "stand-alone" TIMs because they only interface with the Fixture and DIB and so their Calibration data is valid for any configuration. Recalibration may only be needed when changing TIMs with "RF System" connections. The "RF System" is any cable connection between TIMs found on the Diag/Cal Inteface Plate (Diag Fixture). Fixture Calibration may be required on Fixtures that use the "calPerTester=True" attribute in the Device Connection Editor. Always follow the Cassini Reference Guide, CH 5: Diagnose proceedure after changing TIMs and prior to releasing the tester for production.

TIM Model Description of Standalone TIMs
RI853580/40/20 Univeral Digital TIM
RI8545Device Power TIM
RI8572Waveform TIM
RI8589FET Pulser TIM
RI8594Waveform TIM with Low Noise Clock

Maintenance Schedule

Detailed Maintenance Schedule information and proceedures are in the Cassini Reference Guide, CH 3: Care & Maintenance.

Item to Inspect Time Period As Needed Time to Complete Role/Login Required Tools Notify Support
SocketDailyMfg. Suggestion1-2 minOperatorStandard Tools, Magnifier
DIBMonthly>10% Yield Change5 minMaintenanceStandard Tools, Voltmeter, Magnifier
Test Head TIM BlocksMonthly1000 Fixture Docks2 minOperatorConnector Cleaner (lube free), Compressed Air
Aux Rack SMA CablesYearly20 GHz Source Exchange1-2 minMaintenanceSMA Torque Wrench
Fixture InsertsDaily1000 DIB Installs1 minOperatorConnector Cleaner (lube free)
Calibrate FixtureNeverModificationVariesDeveloperCalibration Kit
Docking HardwareMonthly1000 Docks1 minOperatorNone (Eyes)If wear is found
Handler POD/RIFL CableQuarterlyFrequent Handler Changes1 minOperatorStandard Tools
Diagnose/VerifyMonthlyYield Drops5-30 minMaintenanceDiagnostic KitOn Failure
Calibrate TIMsYearlyTIM Repair5-30 minMaintenanceDiag & Calibration Kit
Calibrate RF SystemYearlyTIM Exchange2-6 hoursMaintenanceDiag & Calibration KitYes

Diagnose and Calibration

Detailed Diagnose and Calibration information and proceedures are in the Cassini Reference Guide, CH 5: Diagnose and CH 6: Calibration.