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TM
55-4920-430-13
Consumable Materials.
4-32. Replacement of Circuit Cards (CRC).
Do not handle or store circuit cards, except in a static-free environ-
ment, using static-free materials. Microcircuits can be damaged by
static.
a. (See fig. 5-4.) Remove the panel from the case (para 4-29).
b. Remove the card retainer.
When removing or installing a card, be careful not to damage
components of the card or those of adjacent cards.
c. Remove the card (82, 83, 84, 85, or 86) from its receptacle. Pull it straight out.
d. Install the replacement card, components toward panel, in its receptacle. Make sure reference
designations on card and card cage are the same.
e. Align the cards and install the card retainer.
f. Install panel in case (para 4-39).
g. Perform final test (para 4-40).
4-33. Replacement of Panel Components (CRC).
NOTE
for component orientation and
Refer to the wiring diagram (FO-55)
wire connections.
a. Replacement of AC/DC VOLTMETER. (See fig. 5-4.)
(1) Remove the panel from the case (para 4-29).
(2) Disconnect plugs P12 and P13 from the AC/DC VOLTMETER.
(3) Remove the meter lens cover (para 3-8).
(4) Remove the attaching hardware, and remove the AC/DC VOLTMETER. Retain the
hardware.
(5) Install the replacement AC/DC VOLTMETER and attaching hardware.
(6) Connect plugs P12 and P13 to the AC/DC VOLTMETER.

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