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TROUBLESHOOTING & REPAIR
OUTPUT DIODES REMOVAL AND REPLACEMENT (continued)
FIGURE F.35 OUTPUT DIODE LOCATION
OUTPUT
DIODES
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TO REPLACE ANY OF THE OUTPUT DIODES (D1, D2, D3 or D4)
1.Remove input power to the
2.Using a phillips head screwdriver, remove the case wraparound cover.
3.Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section.
4.Locate the output diodes. See Figure F.35.
5.Using a phillips head screwdriver, remove the P.C. board mounting screws.
6.Using a phillips head screwdriver and/or a 7mm wrench, remove the copper bus bars from the diode module that is to be replaced.
7.Using a phillips head screwdriver, remove the two mounting screws from the output diode.
9.Apply a thin layer of heatsink compound to the areas of contact on the new diode/s.
10.Replace the two output diode mounting screws previously removed.
11.Replace the copper bus bars to their proper loca- tions.
12.Mount the P.C. board previously removed.
13.Replace the case wraparound cover.
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8. Remove and replace the output diode.
