Installation of the Passenger Entertainment System (PES) Main Multiplexer

TASK 23-33-31-400-001-A
Installation of the Passenger Entertainment System (PES) Main Multiplexer

ZONE: 128
FIN: 8MK ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
128	REAR AVIONIC COMPARTMENT
824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 23-33-00-600-802-A	Software / Media Download and Configuration of the IFE system
TASK 23-33-00-740-005-A	BITE-Test of the Integrated Passenger Entertainment System
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A	Close the Avionics Compartment Doors after Access
PES Main Multiplexer ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 23-33-31-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access door 824 in zone 128.
(2) Make sure that the access door 824 is open (Ref. AMM TASK 52-41-00-010-002).

Subtask 23-33-31-865-051-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
123VU	SHED BUS/218XP/220XP SPLY	28XN	AC02
123VU	BUS 2/210XP/SPLY	7XN2	AF02
** ON A/C NOT FOR ALL
2000VU	PES-MUSIC - CTL	21MK	D01
** ON A/C NOT FOR ALL
2000VU	PES-MUSIC-CTL	21MK	D01

4. Procedure
Subtask 23-33-31-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the PES Main Multiplexer
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking caps from the electrical connectors (1).
(4) Make sure that the electrical connectors (1) are clean and in the correct condition.
(5) Install the multiplexer (5) on its rack (2).
(6) Push the multiplexer (5) on its rack (2) to connect the electrical connectors (1).
(7) Engage the nut (3) on the lug (4) and tighten.

Subtask 23-33-31-865-052-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
123VU	SHED BUS/218XP/220XP SPLY	28XN	AC02
123VU	BUS 2/210XP/SPLY	7XN2	AF02
** ON A/C NOT FOR ALL
2000VU	PES-MUSIC - CTL	21MK	D01
** ON A/C NOT FOR ALL
2000VU	PES-MUSIC-CTL	21MK	D01

Subtask 23-33-31-820-050-C ** ON A/C NOT FOR ALL

C. Do the Software-/Mediadownload and Configuration of the IFE system (Ref. AMM TASK 23-33-00-600-802).

Subtask 23-33-31-740-050-C ** ON A/C NOT FOR ALL

D. Do the BITE test of the PES Main Multiplexer (Ref. AMM TASK 23-33-00-740-003).

Subtask 23-33-31-740-050-D ** ON A/C NOT FOR ALL

D. Do the BITE-Test of the integrated Passenger Entertainment System (Ref. AMM TASK 23-33-00-740-005).

5. Close-up
Subtask 23-33-31-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:45:59 UTC