TM 11-6625-3081-237-36. PARALLEL BUS7-36INPUT CODE: PLLBUSa . D E S C R I P T I ONThis module tests the ability of the parallel bus to transfer 16 bits ofinformation in parallel.The built-in, self-test feature of the parallel bus isused to check out the data and handshake lines of the interface.If an error is detected during the following checks, a prompt is displayed atthe completion of the test.The following numbers are output to the parallel bus self-test address and theinput value from the parallel bus self-test address to the AN/USM-410 is checked forthe same value.Output -1 (all ones), O (all zeros), 1 (bit O), 2 (bit 1), 4 (bit 2), 8 (bit 3),16 (bit 4), 32 (bit 5), 64 (bit 6), 128 (bit 7), 256 (bit 8), 512 (bit 9), 1024 (bit10), 2048 (bit 11), 4096 (bit 12), 8192 (bit 13), 16384 (bit 14), -32768 (bit 15),21845 (even bits), and -21846 (odd bits).b. REPLACEMENT PROCEDURE REFERENCEThe following list provides a cross reference of replacement items toreplacement procedures.The item column identifies the item to be replaced byreference designation and part number.The reference column identifies theprocedural paragraph used to perform the replacement action. The VDT screen willdisplay the proper sequence of repair/replace actions.Item(Ref Des/Part No.)Reference(Para No.)1A4PS4/BKF-5-112-331A11/132317462-39.11A11A9/130817422-401A11A12/130814312-401A11A13/130814832-402A2A7A6A5/130827172-512A2A7A6A7/130827142-517-184
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