Continental Access SUPERTERM CIC1800, Installation And Service Manual, Page: 88 / 92

MAINTENANCE
Superterm CIC1800 / CICP1400UL 88
Superterm Step-Down Transformer
Replacement
WARNING
Verify that the AC source voltage is switched off
at the breaker panel before proceeding with
power supply replacement.
1)
Open the Superterm cabinet and locate the
transformer assembly secured to the lower left-
hand ledge of the Superterm cabinet (see
Figure 58).
2)
Disconnect the BLACK lead from pin 7
(labeled AC2) of the power input terminal strip
(refer to page 12, Step-Down Transformer
Connection for specific information).
3)
Disconnect the YELLOW lead from pin 8
(labeled GND) of the power input terminal
strip.
4)
Disconnect the WHITE lead from pin 9
(labeled AC1) of the power input terminal
strip.
5)
Disconnect the 2-wire Molex connector
between the transformer and the expansion
power supply.
6)
Disconnect the transformer's NEUTRAL
(White) lead from the AC input power terminal
block (refer to page 10, 120VAC Power for
specific information).
7)
Disconnect the transformer's LINE (Black)
lead from the AC input power terminal block.
8)
Remove the four (4) lock nuts securing the
transformer assembly to the Superterm cabinet.
9)
Remove the old transformer assembly.
10)
Install the new transformer assembly in the
reverse order of the removal.
Figure 58 - Replacing the Superterm Transformer Assembly