Integrated Circuit Removal and Replacement

TM 11-7010-201-40-5/ET821-AA-MMI-050/E154 MTS/T O 31S5-2TSQ73-2-5

5-15. Integrated Circuit Removal and Replacement. (See figure 5-2.) Any of the 63 lamp drivers (2), two quad two's

(3), 24 hex inverters (4), or nine diode arrays (5) may be removed and replaced by performing the following procedures.

a. Removal. Perform the following procedure to remove any of the integrated circuits (2, 3, 4 and 5).

CAUTION

Ensure that power is removed from the MTS test aid before removing integrated circuits.

(1) Loosen three knurled captive screws securing front panel (17, figure 5-1) to chassis and open front panel.

(2) Using Augat IC extraction tool T114-1 or equivalent, remove appropriate integrated circuit (2, 3, 4, or 5), from

circuit board (1).

b. Replacement. Perform the following procedure to replace any of the integrated circuits (2, 3, 4, and 5, figure 5-2).

(1) Using Augat IC insertion tool T8136-2 or equivalent, insert integrated circuit (2, 3, 4, or 5, figure 5-2) into circuit

board (7, figure 5-2) ensuring proper integrated circuit orientation.

(2) Close front panel (17, figure 5-1), and secure with three knurled captive screws.

5-16. Resistor Adapter Plug Removal and Replacement. The resistor adapter plug (7, figure 5-2) may be removed

and replaced by performing the following procedures.

a. Removal. Perform the following procedure to remove the resistor adapter plug (7).

CAUTION

Ensure that power is removed from the MTS test aid before removing the resistor adapter plug.

(1) Loosen three knurled captive screws securing front panel (17, figure 5-1) to chassis (1) and open front panel

(17).

(2) Using Augat IC extraction tool T114-1 or equivalent, remove resistor adapter plug (7).

NOTE

If it is necessary to remove a resistor (6) from resistor adapter plug (7), the resistor must be unsoldered.

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