W DOC AIRBUS | TSM A320F

TR1 indication and related electrical parameters are shown in amber on the ELEC page

TASK 24-32-00-810-805-A
TR1 indication and related electrical parameters are shown in amber on the ELEC page

1. Possible Causes
  • wiring
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
ASM 243202
AMM 24-41-00-861-002
Energize the Aircraft Electrical Circuits from the External Power
AMM 24-41-00-862-002
De-energize the Aircraft Electrical Circuits Supplied from the External Power
AMM 31-60-00-860-001
EIS Start Procedure
AMM 31-60-00-860-002
EIS Stop Procedure
3. Fault Confirmation
Subtask 24-32-00-860-058-A
A. Job Set-up
   (1) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
   (2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001.
Subtask 24-32-00-710-058-A
B. Test
ACTION
RESULT
1.On the ECAM control panel:
  • push the ELEC key to get the ELEC page.
On the lower ECAM DU, ELEC page:
  • the TR1 indication, voltage and current parameters are shown in amber.
4. Fault Isolation
Subtask 24-32-00-810-054-A
A. If the test confirms the fault:
  • do a check of the connector A of the TR-1 (1PU1) for correct condition.
   (1) If the connector is not in the correct condition (burned contacts, damaged contacts...):
  • replace it.
   (2) If the connector is in the correct condition:
  • do a check of the wiring between pins A2, B2 and C2 of the TR-1 SPLY circuit breaker (2PU1) and pins A/A, A/B and A/C of the TR-1 (1PU1). ASM 243202
     (a) If the fault continues:
  • do a check of the connector B of the TR-1 (1PU1) for correct condition.
       1 If the connector is not in the correct condition (burned contacts, damaged contacts...):
  • replace it.
       2 If the connector is in the correct condition:
  • do a check and repair the wiring from the TR-1 pins B/A, B/B and B/C to the first terminal block ASM 243202.
Subtask 24-32-00-710-059-A
B. Do this test
ACTION
RESULT
1.On the ECAM control panel:
  • push the ELEC key to get the ELEC page.
On the lower ECAM DU, ELEC page:
  • the TR1 indication is shown in white,
  • the voltage and current parameters are shown in green.
5. Close-up
Subtask 24-32-00-860-059-A
A. Put the aircraft back to its initial configuration.
   (1) Do the EIS stop procedure
AMM 31-60-00-860-002.
   (2) De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.
[Rev.8 from Aug 2018] 2026.04.04 04:26:46 UTC
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