89
3. While pushing down the lock lever on the Backplane with a screwdriver as
shown below, remove the Output Unit.
Lock lever
4. Using a Phillips screwdriver, remove the screw from the top of the Unit.
5. Using a flat-blade screwdriver, detach the case from the Unit.
(4)
(5)
6. Pull out the printed circuit board. The Relays are placed on the PC boards of
individual Units as shown in the figures below.
7. A Relay puller is provided inside the rear of the case when the Unit is deliv-
ered. Use the Relay puller to pull out the Relay as shown below. Insert a new
Relay.
Relays for the C200H-OC222V/OC224V/OC226V can be replaced without
using the Relay puller.
Relay puller
Printed circuit board
Using the Relay puller,
pull the Relay up and out
of the socket.
8. Reassemble in reverse order of assembly.
Inspection and Maintenance
Section 5-2
