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TROUBLESHOOTING AND REPAIR | ||
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AUXILIARY TRANSFORMER NO. 2 TEST (continued)
FIGURE F.7 – PLUGS P52 AND P54
3/8” MOUNTING SCREWS (2)
P52
P50
TRANSFORMER #2
P51
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PROCEDURE
1.Remove the main input supply power to the INVERTEC®
2.Remove any load that may be connected to the 115 VAC receptacle.
3.Using the 3/8 in. nut driver, remove the left and right case sides.
4.Perform the Capacitor Discharge Procedure.
5.Locate plugs P50 and P51 at the Auxiliary Transformer No. 2. See Figure F.7.
6.Carefully apply the correct input power and check for 115 VAC at plug P51 pins #1 and #4.
7.If 115 VAC is present, the Auxiliary Transformer No. 2 is good.
8.If 115 VAC is not present between pins #1 and #4, check the associated leads and plugs for loose or faulty connections.
WARNING
High voltage is present at plug P50.
9.Carefully test for the correct AC input voltage applied to the primary windings at H6 and H1. (P50 Pins 1 and 5) Normal is
10.If the correct AC input voltage is applied to the primary of the Auxiliary Transformer No. 2 and the secondary voltage is NOT correct, the transformer may be faulty. Replace.
11.Install the left and right case sides using the 3/8 in. nut driver.
