Loss of the Reception at the Supplementary Headset

TASK 23-51-00-810-834-A
Loss of the Reception at the Supplementary Headset

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 23-51-00-710-001	Operational Test of the Audio Management
ASM 235104
AIPC 235108
AMM 23-51-34-000-001	Removal of the Audio Management Unit (AMU) (1RN)
AMM 23-51-34-400-001	Installation of the Audio Management Unit (AMU) (1RN)

3. Fault Confirmation
Subtask 23-51-00-710-072-A

A. Test
(1) Do the operational test of the audio management system AMM 23-51-00-710-001.

4. Fault Isolation
Subtask 23-51-00-810-083-A

A. If the reception of the supplementary headset is incorrect:

Connect a new headset to the JACK-HEADSET, SUPPLEMENTARY [18RN5] on the panel 15VU.

(1) If the fault continues:

(a) If the fault continues:
continues:

1 If the fault continues:

Do a check and repair the wiring from the JACK-HEADSET, SUPPLEMENTARY [18RN5] pins 1 and 2 to the AMU [1RN] pins AA/14H, 14G ASM 235104.

Subtask 23-51-00-710-073-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:45 UTC