Removal, Replacement and Repair of Power Connector Assembly A5MP3

TM 11-5895-1179-13 E132-EA-OMP-010/E106 KY883 TO 31S1-2GGSC-161

CAUTION

The plug-in-circuit card assembly ejector as well as the plug-in- circuit card assembly should be firmly

supported to prevent cracking the plug-in-circuit card assembly during step b.

Using a drill pin punch, push the ejector roll pin with just enough force to drive out the pin.

Position the replacement plug-in-circuit card assembly ejector so that the ejector roll-pin hole is aligned with

the hole in the plug-in-circuit card assembly. Insert the new roll pin and press it with a screwdriver blade until

it is properly seated.

Install the plug-in-circuit card assembly (paragraph 4-7).

Close and secure the front panel assembly.

5-18.

Removal, Replacement and Repair of Power Connector Assembly A5MP3

Remove the chassis cover and the four plug-in-circuit card assemblies as described in paragraphs 5-6 and

4-7, respectively.

WARNING

Set ON/OFF switch to OFF before opening front panel assembly and removing circuit card assemblies.

High voltage is present in the power supply even when the ON/OFF switch is OFF. Remove the power

plug and discharge capacitors A7C1 and A5AlCl to ensure safety.

Make certain that capacitors A7C1 and A5A1CI (figures 5-5 and 5-6) are discharged. Remove the

terminal board cover from A7TB1 (figure 5-5) and disconnect the leads from A7TBI-8, -12 and -13 (figure

Remove the four power connector assembly mounting screws and washers (figure 5-4). Remove the

power connector assembly.

If the power connector assembly is to be repaired, replace the defective component. a. Position the

replacement power connector assembly in the mounting hole with pin B at the bottom. Install the four

screws and washers removed in step c.

Connect the leads to A7TB1-8, -12 and -13 (figure 5-2). Install the terminal board cover removed in step s.

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