DATA ACQUISITION UNIT (DAU) INSPECTION AND FAULT ISOLATION

CONTROL AND DISPLAY UNIT (CADU) INSPECTION AND FAULT ISOLATION

UNIVERSAL TRACKING DEVICE (UTD) INSPECTION AND FAULT ISOLATION

TM-1-6625-724-13P Aviation Vibration Analyzer Manual
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TM 1-6625-724-13&P 0018 00 0018 00-1/(0018 00-2 blank) DATA ACQUISITION UNIT (DAU) INSPECTION AND FAULT ISOLATION Tables Table 1. Recommended PWA Replacement By Error Code........................................................................................... 1 Initial Setup: Workbench with ESD capability Personnel Required: TMDE Support Specialist Tools and Equipment: As listed in TM 1-6625-736-13&P, NSN 6625-01-347-8667 P/N 29085800 References: Operator’s Manual for Test Set, Electronic NSN 6625-01-347-8667 Equipment Condition: AVA system on workbench, DAU cover removed and connected to test set. a. Examine DAU for visible damage. Replace items that are broken. b. Connect the DAU to the test set following instructions in the Operator’s Manual for Test Set, Electronic, Section V-Calibration paragraph 2-11 (2) SETUP. c. Perform Operator’s manual instructions Section V-Calibration, paragraph 2-11 (1) PROGRAM THE CADU. d. Observe LEDs on power supply PWA. All five green and no red LEDs indicate PWA is operating normally. If any green light is not illuminated, establish ESD procedures and disconnect the acquisition PWA and the processor PWA from the back plane connectors. Replace power supply PWA if all green LEDs are not illuminated or red lights are illuminated. e. Perform Operator’s manual instructions Section V-Calibration, paragraph 2-11 (3) PROCEDURE TO VERIFY CALIBRATION OF THE DAU. f. If no errors are reported complete instructions in Section V-Calibration, paragraph 2-11 (4) CALIBRATED DATA. g. If errors are reported on CADU display replace the PWA as outlined in the appropriate Work Packages WP0044 00 to WP0045 00 and perform steps e and f above. Reference table 1 below for suggested PWA replacement relative to error codes. Acquisition PWA Processor PWA 4160 16426 16433 4163 4161 16427 16434 4164 16421 16428 16422 16429 16423 16430 16424 16431 16425 16432 Table 1. Recommended PWA Replacement By Error Code NOTE Refer to Chapter 3, WP0021 00 for definitions of the above error codes. END OF WORK PACKAGE

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