Make sure all power is disconnected.
Before removal, note position of wires and plug on photocell cable.
Disconnect the photocell cable(3, fig. 4-3) from the amplifier circuit board at BC2(2).
Remove the two screws(4) holding the photocell(l) in place. Remove photocell and cable assembly.
Cable(3), photocell(l), and plug(2) are replaced as a single assembly.
Install replacement photocell assembly and secure in place with two screws(4).
Be sure that photocell cable wires and plug are in correct position or damage may occur to the
Connect photocell cable(3) to amplifier circuit board at BC2(2).
Replace front panel and ensure that the unit is properly connected. See para 220.127.116.11.a. for ac operation;
see para 18.104.22.168.b. for dc operation.
4-7 (4-8 blank)