Starting System
Right Start PC Board (NZ010)

Location - The PC board is located inside the aft power junction box in the tailcone.  Plug JZ010 is connected to the PC board.  Open Access panel  311AZ , remove the junction box cover, and remove the right PC module enclosure lid to access the PC board.

View of aft power junction box

1.   Left Start PC Board (NZ011)
2.  Right Start PC Board (NZ010)

Operation - The right start PC board controls the operation of the Right Start Relay (KZ008).  The PC board receives inputs from the Right Generator Control Unit (BT002), the R ENGINE START Switch/Light (SI034), and START DISG Switch/Light (SI033).

Pins

Functions

3

Start command output to the right generator control unit.
4

Start command input from the right generator control unit. 
6

Output to engage the right start relay.
7

Ground on ground input
10

Start control input from the right generator control unit. 
11

Disengage command from START DISG switch/light.
18

Power input from the Right Starter/Generator (SG2).
19

Power input from the RH START CONTROL PCB ASSY Circuit Breaker (HT053).
21 and22

Input from Ground Fault Transformers (UT006 and UZ004)
23

Start command from R ENGINE START switch/light.