OPTICAL SIGNAL ANALYZER (OSA) RELAY ASSEMBLY 2A1A1A12 REPAIR (cont)
Slide heat shrinkable tubing over
solder joints and shrink in
Connect the following connectors:
W4P2 to A12J2 (12)
W2P2 to A12J1 (11)
Position relay assembly (3) on
mounting plate (4) and install
two screws (2).
Connect connector A12J3 to
connector W11P7 (5).
Install terminal leads E3 (7), to
TB1-14D, E4 to TB1-11D, E5 to
TB1-12K, and E6 to TB1-1OG using
Close access door (1).
END OF TASK
DIODES CR1 THROUGH CR4
This procedure is used to replace
any of four diodes.
Refer to 1 above and do steps a
through f to remove relay
b. Tag and remove leads to terminals
X1 and X2 of relay (1) with
defective diode (2).
Remove defective diode (2) from
Install replacement diode (2) in
relay (1) with banded end to blue
terminal Xl on relay.
Install tagged leads to relay
Refer to wire list in