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A GRM test that needs a check.

[ILLUSTRATIONS OMITTED]

1. Remove the radio cover and check the part number of the CCA in the A10 slot. If the part number is A3131457, a real failure has happened. Replace the CCA. If the part number is A3137670, reinstall the cover and repeat the test.

2. If the RT displays a FAIL4 code as well as a FAIL6, press and release the "8" key on the keypad until the internal failure codes are displayed. If failure codes "A15-2" or "A10-5" appear, you have a false failure. Press the GO/ENTER key as instructed for a pass condition on the GRM display and soldier on.

3. If other failure codes are displayed, you have an actual failure and the CCA should be replaced.

[ILLUSTRATION OMITTED]

1. Remove the radio cover and check the part number of the CCA in the A10 slot. If the part number is A3131457, a real failure has happened. Replace the CCA. If the part number is A3137670, reinstall the cover and repeat the test.

2. If a failure occurs during the test where the GRM-122 display reads "Read RT display for FAIL6", set the RT FCTN to TST and observe the RT display. If FAIL4 and/or FAIL2 appears in addition to FAIL6, press and release the "8" key on the keypad until the internal failure codes are displayed. If failure codes "A15-2", "A10-5", "A12-1" or "A12-2" appear, you have a false failure. Press the GO/ENTER key as instructed for a pass condition on the GRM display and keep on testing.

3. If other failure codes are displayed, you have an actual failure and the CCA should be replaced.

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IF YOU HAVE QUESTIONS ABOUT ANY OF THIS, CECOM LCMC EXPERTS ARE STANDING BY AT DSN 992-2082, (732)532-2082, OR DSN 992-9141, (732)532-9141.

YOU CAN REACH THEM BY EMAIL: @us.army.mil AND @us.army.mil.

[ILLUSTRATION OMITTED]
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Title Annotation:RT-1523A SINCGARS ...
Publication:PS, the Preventive Maintenance Monthly
Article Type:Brief article
Geographic Code:1USA
Date:May 1, 2008
Words:316
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