b. Release the retaining catches located at each side of the circuit card
c. Using card extractor tool 5054268, remove the circuit card assembly from
Receiver Set CCA/Module Identification
P a r t number
Buffer Amplifier CCA
Power Supply Monitor CCA
R e f e r e n c e Oscillator, 5 MHz
E M I Filter Assembly
Indicator Light Assembly
F i l t e r Assembly (SEE NOTE)
FILTER ASSY A11 INSTALLED ON SERIAL NOS. 143 AND ABOVE
d. To install a replacement, insert the card into the guides in the card
Push down until firmley seated.
S e c u r e the catches at each side of the CCA.
f. Replace and secure top access cover.
5-4.3 Filter Assemblies (A10) and (A11), Removal/Installation. A10 or A11 is
removed/installed as follows:
R e m o v e A10 or A11 from rear panel as follows:
(1) Supporting the filter assembly, remove and retain the four socket
head screws, washers and lockwashers, securing the filter assembly
to the stand-off posts.
( 2 ) Disconnect A10W1P1 from J24 or A11W1P1 from J27.
Install a replacement as follows:
If A10W1P1 or A11W1P1 MASTER key engages properly
skip step (2).
(1) Align the mounting holes in A10 or All chassis with the screw holes in
t h e s t a n d - o f f p o s t s . C h e c k that the master key of A10W1P1 or
A11W1P1 engages properly with A10 or All in this position.