W DOC AIRBUS | TSM A320F

PA - No PA and cabin interphone from cockpit boomset/mike

TASK 23-73-00-810-862-A
PA - No PA and cabin interphone from cockpit boomset/mike

1. Possible Causes
  • DIR-CIDS, 1 [101RH]
  • cockpit boomset/mike
  • wiring
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 23-51-00-810-835-A
Loss of the Transmission from the Captain Boomset
AMM 23-51-00-740-002
BITE Test of the Audio System
AMM 23-73-00-710-005
Operational Test of the Passenger Address (PA) system
AMM 23-73-00-740-005
BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS
ASM 237302
AMM 23-73-34-000-001
Removal of the CIDS Director
AMM 23-73-34-400-001
Installation of the CIDS Director
3. Fault Confirmation
Subtask 23-73-00-710-076-A ** ON A/C NOT FOR ALL
A. Test
   (1) Do the BITE test of the AMU & ACP AMM 23-51-00-740-002.
   (2) Do the CIDS BITE test through the CFDS AMM 23-73-00-740-005.
   (3) Do the operational test of the Passenger Address (PA) system AMM 23-73-00-710-005.
Subtask 23-73-00-710-076-C ** ON A/C NOT FOR ALL
A. Test
   (1) Do the BITE-test of the AMU & ACP.
AMM 23-51-00-740-002
   (2) Do the CIDS Interface and Power-Up test through the CFDS.
AMM 23-73-00-740-005
   (3) Do the operational test of the Passenger Address (PA) system.
AMM 23-73-00-710-005
4. Fault Isolation
Subtask 23-73-00-810-077-A
A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
Subtask 23-73-00-810-094-D ** ON A/C NOT FOR ALL
B. If the CIDS BITE test result is no fault message, but an announcement is not possible:
  • make sure that at least one cabin door is open.
  • make sure that the EMER LT (4WL) switch is in the OFF position.
  • open these CBs:
    49VU: 150RH (G01) COM DIR ESS/1,
    49VU: 157RH (G02) COM DIR ESS/2,
    121VU:151RH (M06) CIDS/DIR NORM/1,
    121VU:156RH (M07) CIDS/DIR NORM/2.
  • wait for approx. 10s and close the CBs 156RH and 157RH.
  • stop for approx. 120s,
  • make an announcement again.
   (1) If an announcement is possible:
   (2) If an announcement is not possible:
  • replace the cockpit boomset/mike.
     (a) If the fault continues:
  • do a check and repair the wiring if necessary between the:
    DIR-CIDS (101RH) connector AB/A1 and the AMU (1RN) connector AA/7E,
    DIR-CIDS (101RH) connector AB/B1 and the AMU (1RN) connector AA/7D,
    DIR-CIDS (101RH) connector AB/J1 and the AMU (1RN) connector AA/7A,
    DIR-CIDS (101RH) connector AB/K1 and the AMU (1RN) connector AA/7B,
    DIR-CIDS (101RH) connector AB/E1 and the AMU (1RN) connector AA/7F,
    DIR-CIDS (101RH) connector AB/A2 and the AMU (1RN) connector AA/6B,
    DIR-CIDS (101RH) connector AB/B2 and the AMU (1RN) connector AA/6A,
    DIR-CIDS (101RH) connector AB/D2 and the AMU (1RN) connector AA/6D,
    DIR-CIDS (101RH) connector AB/E2 and the AMU (1RN) connector AA/6E,
    DIR-CIDS (101RH) connector AB/F2 and the AMU (1RN) connector AA/6F,
    DIR-CIDS (101RH) connector AB/G2 and the AMU (1RN) connector AA/6H,
    DIR-CIDS (101RH) connector AB/H2 and the AMU (1RN) connector AA/6J ASM 237302.
       1 If the fault continues:
Subtask 23-73-00-810-094-F ** ON A/C NOT FOR ALL
B. If the CIDS Interface and Power-Up test result is no fault message, but an announcement is not possible:
  • make sure that at least one cabin door is open.
  • open these CBs:
    49VU: 150RH COM/CIDS/DIR ESS/1,
    49VU: 157RH COM/CIDS/DIR ESS/2,
    49VU: 15WH AIR COND/CIDS/SDF/DIR 1 ESS,
    49VU: 18WH AIR COND/CIDS/SDF/DIR 2 ESS,
    120VU: 151RH COM NAC/CIDS/DIR NORM/1,
    120VU: 156RH COM NAV/CIDS/DIR NORM/2,
    122VU: 14WH AIR COND/CIDS/SDF/DIR NORM/2,
    122VU: 17WH AIR COND/CIDS/SDF/DIR NORM/1.
  • wait for approx. 10s and close the CBs 156RH, 157RH, 14WH and 18WH.
  • stop for approx. 120s,
  • make an announcement again.
   (1) If an announcement is possible:
   (2) If an announcement is not possible:
  • replace the cockpit boomset/mike.
     (a) If the fault continues:
  • do a check and repair the wiring if necessary between the:
    DIR-CIDS (101RH) connector AB/A1 and the AMU (1RN) connector AB/9C,
    DIR-CIDS (101RH) connector AB/B1 and the AMU (1RN) connector AB/9B,
    DIR-CIDS (101RH) connector AB/J1 and the AMU (1RN) connector AA/5A,
    DIR-CIDS (101RH) connector AB/K1 and the AMU (1RN) connector AA/4A,
    DIR-CIDS (101RH) connector AB/E1 and the AMU (1RN) connector AB/8C,
    DIR-CIDS (101RH) connector AB/A2 and the AMU (1RN) connector AB/7A,
    DIR-CIDS (101RH) connector AB/B2 and the AMU (1RN) connector AB/8A,
    DIR-CIDS (101RH) connector AB/D2 and the AMU (1RN) connector AA/7A,
    DIR-CIDS (101RH) connector AB/E2 and the AMU (1RN) connector AA/6A,
    DIR-CIDS (101RH) connector AB/F2 and the AMU (1RN) connector AB/8B,
    DIR-CIDS (101RH) connector AB/G2 and the AMU (1RN) connector AA/15G,
    DIR-CIDS (101RH) connector AB/H2 and the AMU (1RN) connector AA/11H. ASM 237302
       1 If the fault continues:
Subtask 23-73-00-810-094-G ** ON A/C NOT FOR ALL
B. If the CIDS Interface and Power-Up test result is no fault message, but an announcement is not possible:
  • make sure that at least one cabin door is open.
  • make sure that the EMER LT (4WL) switch is in the OFF position.
  • open these CBs:
    49VU: 150RH COM/CIDS/DIR ESS/1,
    49VU: 157RH COM/CIDS/DIR ESS/2,
    49VU: 15WH AIR COND/CIDS/SDF/DIR 1 ESS,
    49VU: 18WH AIR COND/CIDS/SDF/DIR 2 ESS,
    120VU: 151RH COM NAC/CIDS/DIR NORM/1,
    120VU: 156RH COM NAV/CIDS/DIR NORM/2,
    122VU: 14WH AIR COND/CIDS/SDF/DIR NORM/2,
    122VU: 17WH AIR COND/CIDS/SDF/DIR NORM/1.
  • wait for approx. 10s and close the CBs 156RH, 157RH, 14WH and 18WH.
  • stop for approx. 120s,
  • make an announcement again.
   (1) If an announcement is possible:
   (2) If an announcement is not possible:
  • replace the cockpit boomset/mike.
     (a) If the fault continues:
  • do a check and repair the wiring if necessary between the:
    DIR-CIDS (101RH) connector AB/A1 and the AMU (1RN) connector AB/9C,
    DIR-CIDS (101RH) connector AB/B1 and the AMU (1RN) connector AB/9B,
    DIR-CIDS (101RH) connector AB/J1 and the AMU (1RN) connector AA/5A,
    DIR-CIDS (101RH) connector AB/K1 and the AMU (1RN) connector AA/4A,
    DIR-CIDS (101RH) connector AB/E1 and the AMU (1RN) connector AB/8C,
    DIR-CIDS (101RH) connector AB/A2 and the AMU (1RN) connector AB/7A,
    DIR-CIDS (101RH) connector AB/B2 and the AMU (1RN) connector AB/8A,
    DIR-CIDS (101RH) connector AB/D2 and the AMU (1RN) connector AA/7A,
    DIR-CIDS (101RH) connector AB/E2 and the AMU (1RN) connector AA/6A,
    DIR-CIDS (101RH) connector AB/F2 and the AMU (1RN) connector AB/8B,
    DIR-CIDS (101RH) connector AB/G2 and the AMU (1RN) connector AA/15G,
    DIR-CIDS (101RH) connector AB/H2 and the AMU (1RN) connector AA/11H. ASM 237302
       1 If the fault continues:
Subtask 23-73-00-810-563-A
C. Install the removed DIR-CIDS, 1 [101RH] AMM 23-73-34-400-001.
Subtask 23-73-00-710-217-A
D. Do the test given in Para. 3.A.
[Rev.8 from Aug 2018] 2026.04.04 04:25:53 UTC
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