CHANNEL BOX COMMAND INDICATION FUNCTIONL U Sets bu er volu e bet een values0 to 3 Min to MaL SI ESets 4 si e tone volu e levelsbet een0 an -18L MIC Sets 8 MIC volu e levels bet een26 an 40L S 1 Sets speaker pre-a p volu elevelsL S 2 Sets speaker volu e levelsGET KE C E E A LE ISA LE isplays the value o a key presseon the keypaC TR L UTLE RLEC ARGELE CALLALLS itches on Inco ing LES itches on acklight LE sS itches charge se uence on LCS itches on Charging LES itches on han s ree o eS itches o all aboveS itches on all aboveC ECKLC 112rovi es 50 visual isplay ocheck pattern on the UUT LCrovi es 50 visual isplay ocheck pattern on the UUT LCTEST S TST Eith E set an TEST M ETERM test co an s can beentere ro the key pa o theUUTSET ER ISE A LEISA LEUnit error co es ill be isplayeon the UUT isplayUnit error co es ill not beisplaye on the UUT isplayS T SIM E A LE ISA LEith E A LE set an TESTM E TERM the UUT isre ove ro test o e an canbe place into call o eTEST M E TERMith S T SIM E A LE theUUT ill be re ove ro testo e an can be place into a callSIM STATUS S Checks an isplays the SIM statusC ECKSUM S isplays the so t are check-suIssue 1 Section 7 MCUK970901C8Revision 0 7 - 8 Service ManualTEST AND MEASUREMENT