(c)
 Put blanking caps on the disconnected electrical connectors.

 (5)
 Pull the studs (4) and remove the PED power unit (converter) (5).

 PED Power Unit (Converter) Figure 401/TASK 25-21-42-991-001- 12 (SHEET 1) 
R  EFF :  301-399, 401-499,  25-21-42 Page 404 Aug 01/05
 CES 

 PED Power Unit (Converter) Figure 401/TASK 25-21-42-991-001- 22 (SHEET 2) 
R  EFF :  301-399, 401-499,  25-21-42 Page 405 Aug 01/05
 CES 

R **ON A/C 301-399, 401-499,
 TASK 25-21-42-400-001
 Installation of the In-Seat Power-Supply (ISPS) Unit
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
20-28-00-912-004  Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage and in the Wings (this does not include the tanks)-
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 25-21-00-710-002 Operational Test of the In-Seat Power-Supply System (PED Power Supply) 25-21-42-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 25-21-42-860-050
 A. Make sure that the ground service network is energized
 (Ref. TASK 24-42-00-861-001).

R  **ON A/C 301-399,
 Subtask 25-21-42-865-051-A
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION FIN LOCATION -------------------------------------------------------------------------------2000VU PED 50HP B8 
R  **ON A/C 401-499, 
R  Subtask 25-21-42-865-051-B 
R R  B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged 
R R R R R  -------------------------------------------------------------------------------PANEL DESIGNATION FIN LOCATION -------------------------------------------------------------------------------2000VU PED 50HP B3 2000VU PED 53HP B1 
R  **ON A/C 301-399, 401-499,
 4. Procedure_________
 Subtask 25-21-42-420-050
 A. Installation of the PED power unit (converter) (5) (Ref. Fig. 401/TASK 25-21-42-991-001)
 (1) Put the PED power unit (converter) (5) in position and attach it with the studs (4).
 (2) Connect the Electrical Connectors
 (a) Remove the blanking caps from the electrical connectors.
 (b) Make sure that the electrical connectors are clean and in the correct condition. 

 CES  CES R **ON A/C 301-399, 401-499,

 (c) Connect the electrical connectors (3): - P1 to the socket J1, - P2 to the socket J2.
 (d) Connect the electrical connectors (8).
 CAUTION : REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN_______ YOU CONNECT THE ELECTRICAL WIRES. INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
 CAUTION : MAKE SURE THAT THE SPRING LATCHES CORRECTLY HOLD THE_______ CONNECTOR IN THE FULLY ENGAGED POSITION. THE SPRING LATCHES PREVENT UNWANTED MOVEMENT OF THE CONNECTOR, AND THUS THE RISK OF ARCING, WHICH CAN CAUSE DAMAGE TO THE UNIT.
 - Connect the electrical connectors (8) as identified during the removal procedure and lock them with the spring latches (7).
 (e) Connect the bonding straps (6) (Ref. TASK 20-28-00-912-004).
 (3) Install the cover (2)
 (a) Make sure that the work area is clean and clear of tool(s) and other items.
 (b) Put the cover (2) in position and attach it with the quick release fasteners (1). 
R  **ON A/C 301-399,
 Subtask 25-21-42-865-052-A
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 50HP. 
R  **ON A/C 401-499, 
R  Subtask 25-21-42-865-052-B 
R R R  B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 50HP and 53HP. 

 Subtask 25-21-42-710-050
 C. Operational Test
 (1) Do the operational test of the (PED) power-outlet of the passenger seat (Ref. TASK 25-21-00-710-002).
 5. Close-up
________
 Subtask 25-21-42-862-050
　
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