Installation of the Tapping Unit (TU)

TASK 23-36-44-400-001-A
Installation of the Tapping Unit (TU)

ZONE: 230
ZONE: 240
ZONE: 250
FIN: 50MH1 ** ON A/C NOT FOR ALL
FIN: 50MH10 ** ON A/C NOT FOR ALL
FIN: 50MH11 ** ON A/C NOT FOR ALL
FIN: 50MH12 ** ON A/C NOT FOR ALL
FIN: 50MH13 ** ON A/C NOT FOR ALL
FIN: 50MH14 ** ON A/C NOT FOR ALL
FIN: 50MH15 ** ON A/C NOT FOR ALL
FIN: 50MH16 ** ON A/C NOT FOR ALL
FIN: 50MH17 ** ON A/C NOT FOR ALL
FIN: 50MH18 ** ON A/C NOT FOR ALL
FIN: 50MH19 ** ON A/C NOT FOR ALL
FIN: 50MH2 ** ON A/C NOT FOR ALL
FIN: 50MH20 ** ON A/C NOT FOR ALL
FIN: 50MH3 ** ON A/C NOT FOR ALL
FIN: 50MH4 ** ON A/C NOT FOR ALL
FIN: 50MH5 ** ON A/C NOT FOR ALL
FIN: 50MH6 ** ON A/C NOT FOR ALL
FIN: 50MH7 ** ON A/C NOT FOR ALL
FIN: 50MH8 ** ON A/C NOT FOR ALL
FIN: 50MH9 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
230	FWD PASSENGER COMPARTMENT
240	MID PASSENGER COMPARTMENT
250	AFT PASSENGER COMPARTMENT

B. Referenced Information

REFERENCE	DESIGNATION
TASK 23-33-00-710-005-A	Operational Test of the Integrated In-Flight Entertainment (IFE) System
TASK 23-36-00-600-002-A	Configuration of the Passenger Entertainment (Video) with the Programmable System Control Unit
TASK 23-36-00-710-001-A	Operational Test of the Passenger Entertainment (Video)
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
TASK 23-73-00-862-001-A	De-energize the Cabin Intercommunication Data System (CIDS)
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 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-23-48-000-001-A	Removal of the Cove Light Panel
TASK 25-23-48-400-001-A	Installation of the Cove Light Panel
TASK 23-33-00-00-01	PASSENGER ENTERTAINMENT - DESCRIPTION AND OPERATION
Tapping Unit (TU) ** ON A/C NOT FOR ALL
Tapping Unit (TU) ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 23-36-44-860-050-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Make sure that the applicable cove light panels are removed (Ref. AMM TASK 25-23-48-000-001).
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an Inspection of the Insulation Mats

CAUTION: MAKE SURE THAT THE INSULATION MATS ARE NOT DAMAGED. DAMAGED INSULATION MATS CAN CAUSE WATER TO GO INTO THE TAPPING UNIT. WATER CAN CAUSE DAMAGE TO THE TAPPING UNIT.

(a) Make sure that the insulation mats adjacent to the tapping unit are clean and in the correct condition.

Subtask 23-36-44-860-050-B ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Make sure that the aircraft electrical circuits are energized.
(Ref. AMM TASK 24-41-00-861-002).
(2) For the location of this component refer to (Ref. AMM D/O 23-33-00-00).
(3) Make sure that the applicable cove light panels are removed (Ref. AMM TASK 25-23-48-000-001).
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.

Subtask 23-36-44-865-057-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
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

4. Procedure
Subtask 23-36-44-420-050-D ** ON A/C NOT FOR ALL

A. Installation of the Tapping Unit (TU)

Tapping Unit (TU) ** ON A/C NOT FOR ALL

(1) Carefully install the tapping unit (4) and lock the nylatches (1).

NOTE: At the end of the tapping unit lines the tapping unit must end with a termination plug. If a related tapping unit is installed, connect the termination plug to the tapping unit connector J3.

(2) Remove the blanking caps from the electrical connectors (2).
(3) Make sure that all the electrical connections are clean and in the correct condition.

CAUTION: MAKE SURE THAT THE CABLE CONNECTIONS OF THE TAPPING UNIT ARE INSTALLED CORRECTLY AND HAVE A LOW-POINT LOOP. IF YOU DO NOT HAVE A LOW-POINT LOOP IN THE CABLES, WATER CAN GO INTO THE TAPPING UNIT. WATER CAN CAUSE DAMAGE TO THE TAPPING UNIT.

(4) Connect the Electrical Connectors

NOTE: You can find the instruction to install cables with a low-point loop in the ESPM 20-33-11 fig. 018.

(a) Connect the electrical connectors (2) to the tapping unit (4) and safety with the spring latches (3).

Subtask 23-36-44-420-050-K ** ON A/C NOT FOR ALL

A. Installation of the Tapping Unit

Tapping Unit (TU) ** ON A/C NOT FOR ALL

(1) Carefully install the tapping unit (4) and lock the nylatches (1).

NOTE: At the end of the tapping unit lines the tapping unit has to be ended with a termination plug. If a related tapping unit is installed, connect the termination plug to the tapping unit connector J3.

(2) Remove the blanking caps from the electrical connectors (2).
(3) Make sure that all the electrical connections are clean and in the correct condition.
(4) Install a cover on the receptacle of the electrical connector J4 of TUs 50MH7 thru 50MH20.
(5) Connect the electrical connectors (2) to the tapping unit and safety with the spring latches (3).

Subtask 23-36-44-865-058-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
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 23-36-44-860-051-A ** ON A/C NOT FOR ALL

C. Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).

Subtask 23-36-44-970-051-A ** ON A/C NOT FOR ALL

D. Do the configuration of the quantity of the tapping units (Ref. AMM TASK 23-36-00-600-002).

Subtask 23-36-44-710-051-A ** ON A/C NOT FOR ALL

E. Do the operational test of the passenger entertainment (Video) (Ref. AMM TASK 23-36-00-710-001) system.

Subtask 23-36-44-710-051-E ** ON A/C NOT FOR ALL

E. Do the operational test of the integrated In-Flight Entertainment (IFE) system (Ref. AMM TASK 23-33-00-710-005).

5. Close-up
Subtask 23-36-44-410-050-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) Install the applicable cove light panel (Ref. AMM TASK 25-23-48-400-001).

Subtask 23-36-44-410-050-B ** ON A/C NOT FOR ALL

A. Close Access
(1) De-energize the CIDS (Ref. AMM TASK 23-73-00-862-001)
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install the applicable cove light panels (Ref. AMM TASK 25-23-48-400-001).

Subtask 23-36-44-862-050-A ** ON A/C NOT FOR ALL

B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)

[Rev.10 from 2021] 2026.04.02 06:12:11 UTC