See figure f.4, Troubleshooting and repair, 12/15 vdc supply test procedure (continued) – Lincoln Electric VRTEXTM 360 SVM200-A User Manual
Page 78
+ + - -
+ + - -
5VDC/5A
5VDC/5A
DPP25-5
DPP25-5
N L
N L
DC ON
DC ON
DPP50-15
DPP50-15
+ + - -
+ + - -
15VDC/3.4A
15VDC/3.4A
N L
N L
DC ON
DC ON
Ground
(Green)
102B
(White)
103C
(Pink/Red)
71
71 72
72
FIGURE F.4 – 12/15 VDC SUPPLY LEAD LOCATION
12/15 VDC SUPPLY TEST PROCEDURE (continued)
8. Using a volt/ohmmeter, check for the presence
of input power at leads 102B to 103C at the
supply terminals. See Figure F.4.
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 12VDC at leads
72(-) to 71(+). See wiring diagram. If 12 volts
are present, the 12 Volt Supply is functioning
properly.
11. If 12VDC is not present, label and disconnect
all associated leads (72(-) to 71(+)) from the 12
Volt Supply terminals.
12. Re-check for the presence of 12VDC at the
supply terminals.
13. If 12VDC is not present and the correct input
voltage is being applied, the 12 Volt Supply is
faulty. Replace. Perform the 12/15 VDC
Supply
14. If 12VDC is present with all leads (72(-) to
71(+)) disconnected, there is a heavy load or
short circuit associated with leads 72(-) to
71(+) and the associated wiring. See wiring
diagram.
15. Replace all previously disconnected leads.
16. Perform the Case Cover Replacement
17. Perform the Monitor and Pedestal
TROUBLESHOOTING AND REPAIR
F-21
F-21
VRTEX
TM
360