Figure 3-4. Circuit board-model R0015027RA.

TB 9-2920-225-34-1

(2) Replace cover assembly.

it will be necessary, if local skills permit, to test

each component. All the parts should be checked

(3) Perform bench test procedures.

with an ohmmeter to make sure that there are no

cracked traces. Traces with hairline cracks will

NOTE

show good at lower temperatures and will tend

After final repair, check regulator on the

to show open circuit at higher temperatures. If the

test stand.

board seems good at room temperature, but the

regulator still fails, this could be the cause.

If the regulator still does not function correctly

Figure 3-4. Circuit board-model R0015027RA.

3-4