3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU COM NAV/TCAS 4SG K10
 B. Test
 (1) Do the operational test of the central warning systems (Ref. AMM TASK 31-50-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message FWC2 : NO DATA FROM TCAS :
 - replace the CMPTR-TCAS (1SG) (Ref. AMM TASK 34-43-34-000-001) and (Ref. AMM TASK 34-43-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the RA/TA DISPLAY 2 bus from the TCAS computer (1SG) to the first terminal block (Ref. ASM 34-43/01).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-43-00∞∞∞∞∞∞∞∞∞∞Page 210
 Feb 01/05R CES

 Loss of the RA/TA DISPLAY 2 Bus Identified by the EIS2
 1. Possible Causes
_______________
 - CMPTR-TCAS (1SG)

 - wiring of the RA/TA DISPLAY 2 bus from the TCAS computer (1SG) to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input Test
 AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC
 AMM 34-43-34-000-001 Removal of the TCAS Computer (1SG)
 AMM 34-43-34-400-001 Installation of the TCAS Computer (1SG)
 ASM 34-43/01

 3. Fault Confirmation
__________________
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------
121VU COM NAV/TCAS 4SG K10
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
 B. Test
 (1) Do the EIS input test (Ref. AMM TASK 31-60-00-740-002). R **ON A/C 106-149, 303-399, 401-499,
 B. Test
 (1) Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).

 4. Fault Isolation
_______________
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
 A. If the test gives the maintenance message DMC2 : NO TCAS DATA :
 - replace the CMPTR-TCAS (1SG) (Ref. AMM TASK 34-43-34-000-001) and (Ref. AMM TASK 34-43-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the RA/TA DISPLAY 2 bus from the TCAS computer (1SG) to the first terminal block (Ref. ASM 34-43/01).
R **ON A/C 106-149, 303-399, 401-499,
 A. If the test gives the maintenance message DMC2 : TCAS(1SG)/DMC2(1WT2)
 - replace the CMPTR-TCAS (1SG) (Ref. AMM TASK 34-43-34-000-001) and (Ref. AMM TASK 34-43-34-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring of the RA/TA DISPLAY 2 bus from the TCAS computer (1SG) to the first terminal block (Ref. ASM 34-43/01).
 **ON A/C ALL
 B. Do the test given in Para. 3.

 Failure of the TCAS Top Antenna
 1. Possible Causes
_______________
R - CMPTR-TCAS (1SG)
 - ANTENNA-TCAS, TOP (7SG1) R - coaxial cables from the top antenna (7SG1) to the TCAS computer (1SG)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-43-00-740-001 BITE Test of the TCAS
 AMM 34-43-11-000-001 Removal of the TCAS Antenna (7SG1, 7SG2)
 AMM 34-43-11-400-001 Installation of the TCAS Antenna (7SG1, 7SG2)

R AMM 34-43-34-000-001 Removal of the TCAS Computer (1SG)
R AMM 34-43-34-400-001 Installation of the TCAS Computer (1SG)
R ASM 34-43/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the TCAS (Ref. AMM TASK 34-43-00-740-001).
　
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