- repair the above wiring.

 (b) If there is continuity:

 - replace the C/B-NAV/TCAS (4SG).

 (2) If there is 115VAC:

 - do a check of the wiring of the ground signal at pin AC/7.
 (a) If there is no continuity:
 - repair the above wiring.
 C. If the circuit breaker (4SG) is open:
 - close this circuit breaker.
 (1) If the circuit breaker (4SG) trips:
 - disconnect these two units: . CMPTR-TCAS (1SG) (Ref. AMM TASK 34-43-34-000-001) . DATA LOADER RECEPTACLE (194VC)

 - close the circuit breaker (4SG).

 (a) If this circuit breaker stays closed:
 - connect the DATA LOADER RECEPTACLE (194VC)
 1 If the circuit breaker trips again:
_ - replace the DATA LOADER RECEPTACLE.
 2 If the circuit breaker stays closed:
_
 - replace the TCAS computer (Ref. AMM TASK 34-43-34-000-001) and (Ref. AMM TASK 34-43-34-400-001)
 (b) If this circuit breaker trips again:
 - do a check for a short to ground at the wiring between the circuit breaker (4SG) and the two units (1SG, 194VC) (Ref. ASM 34-43/01).
 1 If there is a short to ground:
_ - repair the above wiring.
 2 If there is no short to ground:
_ - replace the C/B-NAV/TCAS.
 「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 203
 May 01/02 CES

 3 Install these two units:
_
 - TCAS computer (Ref. AMM TASK 34-43-34-400-001)

 - DATA LOADER RECEPTACLE (194VC).

 D. 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 204
 May 01/02R
 CES  Loss of the RA/TA DISPLAY 1 Bus Identified by the ECAM1

 1. Possible Causes
_______________
 - CMPTR-TCAS (1SG)

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

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-50-00-710-001 Ground Scanning of the Central Warning System
 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
 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 FWC1: 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 1 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 205
 May 01/02R CES

 TASK 34-43-00-810-803
 Loss of the RA/TA DISPLAY 1 Bus Identified by the EIS1

 1. Possible Causes
_______________
 - CMPTR-TCAS (1SG)

 - wiring of the RA/TA DISPLAY 1 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)
　
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