Toshiba Perception 1 2 User Manual
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FAULTFINDING SECTION 200-255-500 MARCH1991 CHART NO. 8 NCOU/NEMU/NLSU FAULTS I Start here to clear NCOWNEMW NLSU faults. t I - -ge4 to classify circuit(s) disabled by NOTE: If any NCOU/NEMU/NLSU circuit(s) is/are Sri// disabled, the fault indicates something _ _ - - - -- Replace the NCOU/ NEMWNLSU PCS which has the FALT LED indication. YES Tag the defective unit(s) and return for repair. _-- , -18-
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 9 NEKUINDKUINSTUINDSU FAULTS Fault Classification NO Go to Page 4 to classify fault. Either leave the circuits disabled or enable as required. ~~ electronic/digital telephones 1 NO NOTE: If any NEKUI NDKU/NSTU/NDSU circuit(s) is/are still disabled the fault indicates somethino besides disabled siate. Replace the NEKU/NDKU/ NSTUINDSU PCB which has the FALT LED indication. Verify that all electronic/digital telephones electronic/digital telephones are connected. are connected. YES Tag the defective unit(s) and return for repair. -19-
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 10 SMDR, TTY, OR MODEM FAULTS Start here to llT, or MODEM From Pages 5, 7, a r? -------_-______ Did NO l * Respective external equipment (SMDR. TTY, or MODEM) is functioning. * Baud rate switch on LCCU is set correctly. * Connections are correct Correct any faults. Verify that SMDR is: * Defined correctly in the DMDR Program. * Enabled in the DSYS Program. * Correctly connected between the cabinet NO YES < the fault cleared? yLy END To A I1 Pa& 21 i/ -2o-
FAULT FINDING SECTION 200-255-500 MARCH1991 CHART NO. 10 SMDR, TTY, OR MODEM FAULTS (continued) The following instructions will cause all calls in progress to be disconnected _ _ _ _ _ and no new calls will be established. Do not continue while Press the INIT key on the NPRU momentarily. (Wait a few seconds for initalization to be completed.) TN0 Press the LOAD key on the NPRU momentarily. (Wait about 30 seconds for reloading to be completed.) YES r-c the loading cycle completed? Call the Service Center for assistance. Tag the Defective units(s) Defective units(s) and return for repair. -21-
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 11 VOICE COMMUNICATION STATION FAULTS eouioment. I Replace the station unit (electronic/digital telephone/SST). located station Random Station && Concentrate on clearing faults on stations assigned to the same PCB location. t- I NOTE: Consult fhe System Record for station unit/PCB assignment. YES * Verify the station cable. (See Fault Finding Paragraphs 5.02 - 5.04) - Correct if faulty. -22-
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 12 INIT/LOAD KEY FAULTS here from the Fault Classification Go to Page 4 to classsify fault. l Replace all the unit(s) that were reinserted or replaced with a known good set. NOTE: See Figure 2 on Page 50. Measure all DC supply voltages on the backplane. r i YES NO I 1 Tag the defective unit(s) and return for repair. - Replace original units, one at a time. - If trouble occurs, suspected unit. Call the Service Center for assistance. -23-
FAULT FINDING SECTION 200-255-500 MARCH 1991 Start here to c/ear MAJOR - ALARM faults. CHART NO. 13 MAJOR ALARM FAULTS (MAJ LED ON) y.YES Tag the LED on the LCCU defective unit(s) and return for repair. -7 I YES I -24
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 14 CO/DID/TIE TRUNK FAULTS Voice Comm. is used, this answer NOTE: From here YES on, the flowchart regards Voice Comm. faults only. NO than one NCOW NEMUINLSU? NO L + YES Replace the affected NCOW NEMWNLSU PCB. defective unit(s) and return NOTE: If more than PC& are affected, concentrate on one PCB. See System Record for trunW/ine 23 END -25-
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 15 ATTENDANT CONSOLE FAULTS Console faults. here from the Fault Classification YES i - Verify that Attendant Console wiring/ cabling is correct. l Correct any faults. Replace the Replace the Attendant Attendant Console. Console. Replace the NPRU. Replace the NEKU to which Attendant Console is assigned. ] is ass7 NOTE: Consult System Record for station assignment. ra.yt: / INTfault? lower), EMT, or / ‘“Y-w / FNn To/--Y .f / - . . -26-
FAULT FINDING SECTION 200-255-500 MARCH 1991 CHART NO. 16 COMMON STATION FEATURE FAULTS fault. Fault must be reclassified. Page 4. I A This is not a common station NO t-c Isit feature fault. fault? Return to Page 4. / a wake-up - Verify that the / appropriate I I NO NC-I /h I -Y YES ‘Y YES the fault cleared? Fromm I Page 30 u Page 30 ) -27-