NEC Neax 2400 Imx System Operations And Maintenance Manual
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CHAPTER 5 NDA-24238
Page 354
Revision 3.0
FAULT REPAIR PROCEDURES
5.4Speech Path System Fault - STBY Side Has Become Faulty
Faulty Situation:
A fault occurred in the STBY side of the dual configuration system.
[1-B] TSW Failure (Permanent)
[1-D] TSW Write Failure
[1-F] TSW Clock Failure
[4-D] TSW Ready Failure
Check to see if the TSW circuit card is mak-
ing poor contact.Set the TSW MBR switch of the TSW circuit
card UP.
Set the MB switch of the TSW circuit card UP
and extract the circuit card from...](http://img.usermanuals.tech/thumb/54/84348/w300_nec-neax2400-imx-system-operations-and-maintenance-manual_d-380.png "Page 381
CHAPTER 5 NDA-24238
Page 354
Revision 3.0
FAULT REPAIR PROCEDURES
5.4Speech Path System Fault - STBY Side Has Become Faulty
Faulty Situation:
A fault occurred in the STBY side of the dual configuration system.
[1-B] TSW Failure (Permanent)
[1-D] TSW Write Failure
[1-F] TSW Clock Failure
[4-D] TSW Ready Failure
Check to see if the TSW circuit card is mak-
ing poor contact.Set the TSW MBR switch of the TSW circuit
card UP.
Set the MB switch of the TSW circuit card UP
and extract the circuit card from...")
CHAPTER 5 NDA-24238 Page 354 Revision 3.0 FAULT REPAIR PROCEDURES 5.4Speech Path System Fault - STBY Side Has Become Faulty Faulty Situation: A fault occurred in the STBY side of the dual configuration system. [1-B] TSW Failure (Permanent) [1-D] TSW Write Failure [1-F] TSW Clock Failure [4-D] TSW Ready Failure Check to see if the TSW circuit card is mak- ing poor contact.Set the TSW MBR switch of the TSW circuit card UP. Set the MB switch of the TSW circuit card UP and extract the circuit card from...
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NDA-24238 CHAPTER 5
Page 355
Revision 3.0
FAULT REPAIR PROCEDURES
Faulty Situation:
Fault related to speech such as noise, one-way speech, no-speed, etc. occurs.
Even if dialing started, Dial Tone (DT) does not stop.
[1-C] Both TSW Write Failure
[1-D] TSW Write Failure
Check to see if fault occurs by extracting
TSW circuit cards one by one.Replace the TSW circuit card referring to Sec-
tion 2.3.2, TSW Card Replacement Procedure
in Chapter 4.
Set the TSW circuit card into ACT mode by
flipping the...](http://img.usermanuals.tech/thumb/54/84348/w300_nec-neax2400-imx-system-operations-and-maintenance-manual_d-381.png "Page 382
NDA-24238 CHAPTER 5
Page 355
Revision 3.0
FAULT REPAIR PROCEDURES
Faulty Situation:
Fault related to speech such as noise, one-way speech, no-speed, etc. occurs.
Even if dialing started, Dial Tone (DT) does not stop.
[1-C] Both TSW Write Failure
[1-D] TSW Write Failure
Check to see if fault occurs by extracting
TSW circuit cards one by one.Replace the TSW circuit card referring to Sec-
tion 2.3.2, TSW Card Replacement Procedure
in Chapter 4.
Set the TSW circuit card into ACT mode by
flipping the...")
NDA-24238 CHAPTER 5 Page 355 Revision 3.0 FAULT REPAIR PROCEDURES Faulty Situation: Fault related to speech such as noise, one-way speech, no-speed, etc. occurs. Even if dialing started, Dial Tone (DT) does not stop. [1-C] Both TSW Write Failure [1-D] TSW Write Failure Check to see if fault occurs by extracting TSW circuit cards one by one.Replace the TSW circuit card referring to Sec- tion 2.3.2, TSW Card Replacement Procedure in Chapter 4. Set the TSW circuit card into ACT mode by flipping the...
Page 383
CHAPTER 5 NDA-24238 Page 356 Revision 3.0 FAULT REPAIR PROCEDURES 6. CONTROL SYSTEM FAULT This section explains the fault repair procedure for the control system listed in Table 5-8. 6.1 Check Point When repairing the control system, check the status of the following lamps: CPR GT TSW MUX EMA circuit cards Figure 5-9 shows a block diagram of the CPU controlling block, where CPU #0 is active. Table 5-8 Control System Fault Situation FAULTY SITUATION REFERENCE SECTION Fault occurs occasionally at...
Page 384
NDA-24238 CHAPTER 5 Page 357 Revision 3.0 FAULT REPAIR PROCEDURES Figure 5-9 CPU Controlling Block Diagram LPM EMAIOC / MISC ISAGT 0 LANI PWR PWR CPU 0 MEMORY PCI BUSISA BUS CPU board CPR CPU clock CPR (ST-BY) Reset Signal MISC BUS MISC BUS ISAGT 1 T MT LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS IMG0 PIM 3 PIM 2 PIM 1 PIM 0 LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS...
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CHAPTER 5 NDA-24238 Page 358 Revision 3.0 FAULT REPAIR PROCEDURES Figure 5-9 CPU Controlling Block Diagram (Continued) LPM EMAIOC / MISC ISAGT 0 LANI PWR PWR CPU 0 MEMORY PCI BUSISA BUS CPU board CPR CPU clock CPR (ST-BY) Reset Signal MISC BUS MISC BUS ISAGT 1 T MT LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM BUS PM BUS IMG2 PIM 3 PIM 2 PIM 1 PIM 0 LC/TRK MUX MUX LC/TRK PM BUS PM BUS LC/TRK MUX MUX LC/TRK PM...
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NDA-24238 CHAPTER 5
Page 359
Revision 3.0
FAULT REPAIR PROCEDURES
6.2 Control System Fault - Fault Occurs Intermittently
Faulty Situation:
Fault occurs intermittently at ACT side in the dual configuration system.
Fault occurs intermittently in the single configuration system.
[0-C] ~ [0-K] CPU Failure
[1-C] Both TSW Write Failure
[1-D] TSW Write Failure
[3-D], [3-E] Lock-Up Failure (Permanent/Temporary)
(1) For Dual Configuration
Replace ACT-side related circuit card
(CPU, GT, TSW, MUX, EMA) with...](http://img.usermanuals.tech/thumb/54/84348/w300_nec-neax2400-imx-system-operations-and-maintenance-manual_d-385.png "Page 386
NDA-24238 CHAPTER 5
Page 359
Revision 3.0
FAULT REPAIR PROCEDURES
6.2 Control System Fault - Fault Occurs Intermittently
Faulty Situation:
Fault occurs intermittently at ACT side in the dual configuration system.
Fault occurs intermittently in the single configuration system.
[0-C] ~ [0-K] CPU Failure
[1-C] Both TSW Write Failure
[1-D] TSW Write Failure
[3-D], [3-E] Lock-Up Failure (Permanent/Temporary)
(1) For Dual Configuration
Replace ACT-side related circuit card
(CPU, GT, TSW, MUX, EMA) with...")
NDA-24238 CHAPTER 5 Page 359 Revision 3.0 FAULT REPAIR PROCEDURES 6.2 Control System Fault - Fault Occurs Intermittently Faulty Situation: Fault occurs intermittently at ACT side in the dual configuration system. Fault occurs intermittently in the single configuration system. [0-C] ~ [0-K] CPU Failure [1-C] Both TSW Write Failure [1-D] TSW Write Failure [3-D], [3-E] Lock-Up Failure (Permanent/Temporary) (1) For Dual Configuration Replace ACT-side related circuit card (CPU, GT, TSW, MUX, EMA) with...
Page 387
CHAPTER 5 NDA-24238 Page 360 Revision 3.0 FAULT REPAIR PROCEDURES (2) For Single Configuration Replace the related circuit card (CPU, GT, TSW, MUX, EMA) with a spare, and check.Replace the circuit card (CPU, GT, TSW, MUX, EMA) individually by referring to the following sections in Chapter 4: Section 1.3.1, CPR Replacement Procedure Section 1.3.2, EMA Card Replacement Procedure Section 2.3.1, GT Card Replacement Procedure Section 2.3.2, TSW Card Replacement Procedure Section 3.3.2, MUX Card...
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NDA-24238 CHAPTER 5
Page 361
Revision 3.0
FAULT REPAIR PROCEDURES
6.3 Control System Fault - STBY Side Is Faulty
Faulty Situation:
Fault has occurred in the STBY side of dual configuration system.
[0-I] STBY CPU Failure
The ACT side has become faulty, and system changeover has executed.
[0-C], [0-H], [0-J] Processor Failure (ACT side)
Replace STBY side related circuit cards
(CPU, GT, TSW, MUX, EMA) with a spare,
and check.Replace the circuit cards (CPU, GT, TSW,
MUX, EMA) individually by referring...](http://img.usermanuals.tech/thumb/54/84348/w300_nec-neax2400-imx-system-operations-and-maintenance-manual_d-387.png "Page 388
NDA-24238 CHAPTER 5
Page 361
Revision 3.0
FAULT REPAIR PROCEDURES
6.3 Control System Fault - STBY Side Is Faulty
Faulty Situation:
Fault has occurred in the STBY side of dual configuration system.
[0-I] STBY CPU Failure
The ACT side has become faulty, and system changeover has executed.
[0-C], [0-H], [0-J] Processor Failure (ACT side)
Replace STBY side related circuit cards
(CPU, GT, TSW, MUX, EMA) with a spare,
and check.Replace the circuit cards (CPU, GT, TSW,
MUX, EMA) individually by referring...")
NDA-24238 CHAPTER 5 Page 361 Revision 3.0 FAULT REPAIR PROCEDURES 6.3 Control System Fault - STBY Side Is Faulty Faulty Situation: Fault has occurred in the STBY side of dual configuration system. [0-I] STBY CPU Failure The ACT side has become faulty, and system changeover has executed. [0-C], [0-H], [0-J] Processor Failure (ACT side) Replace STBY side related circuit cards (CPU, GT, TSW, MUX, EMA) with a spare, and check.Replace the circuit cards (CPU, GT, TSW, MUX, EMA) individually by referring...
Page 389
CHAPTER 5 NDA-24238 Page 362 Revision 3.0 FAULT REPAIR PROCEDURES Figure 5-10 Alarm Bus Cable Connections Diagram IMG 0 MUX 0LC/TRKMUX 1PWR DPWR PIM 3 ALMA ALMB DSPLTO P U MUX 0LC/TRKMUX 1PWR DPWR PIM 0 ALMA ALMB LED3 LED2 LED1 ALM3 MUSIC ALM2 ALM1EMA EMAFH ALM ALM DSP PA L M 1 MUX 0LC/TRKMUX 1PWR DPWR PIM 1 ALMA ALMB MUX 0LC/TRKMUX 1PWR DPWR PIM 2 ALMA ALMB PZ-DK222 IMG 1 MUX 0LC/TRKMUX 1PWR DPWR PIM 3 ALMA ALMB DSPMTOPU MUX 0LC/TRKMUX 1PWR DPWR PIM 0 ALMA ALMB TSWM MUX 0LC/TRKMUX 1PWR DPWR PIM 1...
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NDA-24238 CHAPTER 5 Page 363 Revision 3.0 FAULT REPAIR PROCEDURES Figure 5-10 Alarm Bus Cable Connections Diagram (Continued) IMG 2 MUX 0LC/TRKMUX 1PWR DPWR PIM 3 ALMA ALMB DSPM TOPU MUX 0LC/TRKMUX 1PWR DPWR PIM 0 ALMA ALMB LED3 LED2 LED1 ALM3 MUSIC ALM2 ALM1 DSP DSP PA L M 1 MUX 0LC/TRKMUX 1PWR DPWR PIM 1 ALMA ALMB MUX 0LC/TRKMUX 1PWR DPWR PIM 2 ALMA ALMB PZ-DK222 IMG 3 MUX 0LC/TRKMUX 1PWR DPWR PIM 3 ALMA ALMB DSPMTO P U MUX 0LC/TRKMUX 1PWR DPWR PIM 0 ALMA ALMB MUX 0LC/TRKMUX 1PWR DPWR PIM 1 ALMA...