Lincoln Electric SVM200-A 17TROUBLESHOOTING and REPAIRF-17, Removal and Replacement Procedure

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F-17TROUBLESHOOTING AND REPAIRF-17

5 VDC SUPPLY TEST PROCEDURE (continued)

FIGURE F.2 – 5 VDC SUPPLY LEAD LOCATION

81 81 50 50

+ + - -	+ + - -
5VDC/5A	15VDC/3.4A
DC ON	DC ON
DPP25-5	DPP50-15

N L N L

Ground 102A 103B (Green) (White) (Pink/Red)

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8.Using a volt/ohmmeter, check for the presence of input power at leads 102A to 103B at the supply terminals. See Figure F.2.

9.If the correct input voltage is not present in the previous step, check for loose or faulty connec- tions at the terminal blocks and associated wiring. See wiring diagram.

10.Check for the presence of 5VDC at leads 50(-) to 81(+). See wiring diagram. If 5 volts are present, the 5 Volt Supply is functioning prop- erly.

11.If 5VDC is not present, label and disconnect all associated leads (50(-) to 81(+)) from the 5 Volt Supply terminals.

12.Re-check for the presence of 5VDC at the supply terminals.

13.If 5VDC is not present and the correct input voltage is being applied, the 5 Volt Supply is faulty. Replace. Perform the 5 VDC Supply

Removal and Replacement Procedure.

14. If 5VDC is present with all leads (50(-) to 81(+)) disconnected, there is a heavy load or short circuit associated with leads 50(-) to 81(+) and the associated wiring. See wiring diagram.

15. Replace all previously disconnected leads.

16. Perform the

. Case Cover Replacement 17. Performrocedurethe Monitor. and Pedestal

Replacement Procedure

VRTEX TM 360