TM 11-6625-3025-14/ET426-AA-MMA-010/E154 VII210/T.O. 33A1-8-902-1-1
b.
Replacement.
WARNING
Circuit cards are keyed and cannot be inserted backward. An attempt to force the
card in the wrong way will result in a broken connector.
(1) insert card into the proper slot and slide the card in until it mates with connector.
NOTE
Ensure card is seated firmly when reinstalled to avoid erroneous indications due to
improper electrical control.
(2) Install top panel with eight screws.
6-10. Front Panel Repair. Perform the following procedure to remove and replace components mounted on the front
panel (see figure 6-1 and figure FO-20).
a.
Removal. Remove front panel as follows:
(1) Remove six screws securing front panel to frame.
(2) Remove front panel away from cabinet and carefully lay panel on flat surface. Be careful not to put
tension on cable harness.
NOTE
To remove and replace front panel components, refer to paragraphs 6-11 through
b.
Replacement. Replace front panel as follows:
(1) Place front panel in position on cabinet. Be careful not to pinch cable harness wires.
(2) Secure front panel using six screws.
6-11. Rotary Switches Removal and Replacement. Perform the following procedure to remove and replace rotary
switch S2 or S3 (see figures 6-1 and FO-20).
a.
Removal. Remove rotary switch S2 or S3 as follows:
(1) Remove front panel described in paragraph 6-10a.
(2) Note position of knob pointer, loosen two set screws on switch knob, and remove knob.
6-7
