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| TROUBLESHOOTING & REPAIR |
AUXILIARY TRANSFORMER NO. 2 TEST (CONTINUED)
FIGURE F.17 – AUXILIARY TRANSFORMER NO. 2 TEST
H4 H3 H1
1 2 3
VIEWED FROM
TRANSFORMER
LEAD SIDE
4 5 6
H5 H6 H2
P50
350 352
1 2
VIEWED FROM
TRANSFORMER
LEAD END
3 4
33A
P52
TEST PROCEDURE
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1.Remove the main input power to the Power Wave 455/R machine.
2.Remove any load that may be connected to the 115 VAC receptacle.
3.Using the 3/8” nut driver, remove the case top.
4.Locate plugs P52 and P50 at the Auxiliary Transformer No. 2. Refer to Figure F.17.
5.Carefully apply the correct input power.
WARNING
ELECTRIC SHOCK can kill.
High voltage is present at both plugs.
6.Check for 115 VAC at plug P52 pins 1 and 4 (leads 350 to 33A). Check for 230 VAC at plug P52 pins 1 and 2 (leads 350 to 352).
7.If 115 VAC and 230 VAC are present, Auxiliary Transformer No. 2 is good.
8.If 115 is not present between pins 1 and 4, and 230 VAC is not present between pins 1 and 2, check the associated leads and plugs for loose or faulty connections.
9.Carefully test for the correct AC input volt- age applied to the primary windings at plug P50. See the Wiring Diagram.
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.Replace any cables ties and insulation removed earlier.
12.Install the case top using the 3/8” nut dri-
