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TROUBLESHOOTING & REPAIR |
HIGH VOLTAGE TRANSFORMER AND CIRCUIT TEST
Test B: Test Resistance of High Voltage Transformer Primary
1.Disconnect input power to machine.
2.Turn ON/OFF Power Switch to OFF.
3.Perform the CAPACITOR DISCHARGE PROCEDURE.
4.Locate and touch probes to lead #31 and lead #35 on the Control Relay CR2. Resistance should be 4 ohms.
a.If 4 ohms resistance is not measured, replace the High Voltage Transformer.
Test C: Test Resistance of High Voltage Transformer Secondary
1.Perform Test B Steps #1, 2, & 3 if needed.
2.Locate the two white leads soldered into the two black doughnut chokes located below the High Frequency Transformer. See Figure F.12.
3.Touch the probes to the two white leads. Resistance should be about 12,500 ohms.
a.If approximately 12,500 ohms is not measured, replace the High Voltage Transformer.
Test D: Test Chokes L501 and L502 for continuity
1.Perform Test B Steps # 1, 2, & 3 if needed.
2.Touch probes to each side of the black chokes located below the High Frequency Transformer. Resistance should be 10 ohms (continuity).
a.If continuity is not measured, chokes are open. Replace.