Removal of the RH Hatrack Mounted Display-Units (HMDU)

TASK 23-36-22-000-002-A
Removal of the RH Hatrack Mounted Display-Units (HMDU)

WARNING: ISOLATE THE ELECTRICAL CIRCUITS FROM THE RELATED EQUIPMENT AND THE ENVIRONMENT.

ZONE: 200
FIN: 100MH10 ** ON A/C NOT FOR ALL
FIN: 100MH12 ** ON A/C NOT FOR ALL
FIN: 100MH14 ** ON A/C NOT FOR ALL
FIN: 100MH18 ** ON A/C NOT FOR ALL
FIN: 100MH2 ** ON A/C NOT FOR ALL
FIN: 100MH22 ** ON A/C NOT FOR ALL
FIN: 100MH26 ** ON A/C NOT FOR ALL
FIN: 100MH30 ** ON A/C NOT FOR ALL
FIN: 100MH32 ** ON A/C NOT FOR ALL
FIN: 100MH34 ** ON A/C NOT FOR ALL
FIN: 100MH38 ** ON A/C NOT FOR ALL
FIN: 100MH4 ** ON A/C NOT FOR ALL
FIN: 100MH6 ** ON A/C NOT FOR ALL
FIN: 100MH8 ** 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	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 25-25-11-000-001-A	Removal of the Filler Panels
TASK 23-33-00-00-01	PASSENGER ENTERTAINMENT - DESCRIPTION AND OPERATION
Hatrack Mounted Display-Unit ** ON A/C NOT FOR ALL
Hatrack-Mounted Display-Unit ** ON A/C NOT FOR ALL
Hatrack Mounted Display-Unit ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 23-36-22-860-072-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 23-36-22-865-086-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2000VU	PES-VIDEO-CABIN-RH AFT	25MH	C06
2000VU	PES-VIDEO-CABIN-LH	23MH	C05
2000VU	PES-VIDEO-CABIN-RH FWD	24MH	C04
2000VU	PES-VIDEO-CABIN-LH FWD	22MH	C03
2000VU	PES-VIDEO-CONTROL-VCC	21MH	C02
** ON A/C NOT FOR ALL
2000VU	PES-VIDEO-CONTROL-MAIN	20MH	C01
** ON A/C NOT FOR ALL
2000VU	PES-VIDEO-CABIN AFT-RH	25MH	C06
2000VU	PES-VIDEO-CABIN AFT-LH	23MH	C05
2000VU	PES-VIDEO-CABIN FWD-RH	24MH	C04
2000VU	PES-VIDEO-CABIN FWD-LH	22MH	C03
2000VU	PES-VIDEO-CONTROL-VCC-DS/C	21MH	C02

Subtask 23-36-22-010-053-A ** ON A/C NOT FOR ALL

C. Get Access
(1) For the location of HMDUs refer to paragraph Component Location (Ref. AMM D/O 23-33-00-00).
(2) Disengage and lower the inboard side of the blank filler panel(s) and/or Passenger Service/Information Unit(s) (PSIU) adjacent to related HMDU(s) (Ref. AMM TASK 25-25-11-000-001).

4. Procedure
Subtask 23-36-22-020-054-H ** ON A/C NOT FOR ALL

A. Removal of the RH Hatrack-Mounted Display Units (HMDU)
(1) Remove the section hoses (4) from the mounting rails (3).
(2) Disengage the rail unit (5) from the outboard mounting rail (3).
(3) Lower the outboard side of the HMDU (2).
(4) Disconnect the electrical connectors (1) from the receptacles.
(5) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(6) Disengage the rail unit (5) from the inboard mounting rail (3) and remove the HMDU (2).

Subtask 23-36-22-020-054-AW ** ON A/C NOT FOR ALL

A. Removal of the RH Hatrack-Mounted Display-Unit (HMDU)

NOTE: The removal procedure is the same for all HMDUs.

(1) If necessary, remove the locking devices (8):
(a) Open and hold in open position the related covers (5).
(b) Loosen the screws (9) and remove them together with the locking devices (8).
(2) Remove the section-hose (2) from the inboard mounting rail (6) at the nearest overhead-stowage compartment-separation.
(3) Pull the section-hose (2) to remove it from the inboard mounting rail (6) between the nearest overhead-stowage compartment-separation and the HMDU (3).
(4) Push the outboard side of the HMDU (3) to disengage the inboard rail unit (4) from the inboard mounting rail (6) and lower it.
(5) Disconnect the electrical connector(s) (7).
(6) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(7) Remove the section-hose (2) from the outboard mounting rail (1).
(8) Disengage the outboard rail unit (4) of the HMDU (3) from the outboard mounting rail (1) and remove the HMDU (3).

[Rev.10 from 2021] 2026.04.01 06:04:03 UTC