Lincoln Electric INVERTEC V250-S - Manual (Page 68)

F-36 TROUBLESHOOTING & REPAIR F-36
TEST PROCEDURE
1. Remove main input power to the
V250-S.
2. Perform Filter Capacitor Discharge
Procedure detailed in Maintenance
Section.
3. Locate and familiarize yourself with
the leads and pin locations in plug J2
on the control board and also plug
J6 on the power board. See Figures
F.10. and F.11.
PROTECTION CIRCUIT TEST (continued)
INVERTEC V250-S
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G2666-[ ]
V250S CONTROL
J1 J2 J5 J3 J4
1J2
8J2 6J2
2J2
Figure F.10 Control Board Plug J2 Test Points
V250S POWER G2684
204 201 209 208 205
J6
PLUG J6
#308 (1J6)
#307 (2J6)
#309 (6J6)
#310 (3J6)
#311 (4J6)
#313 (5J6)
Figure F.11 Power Board Plug J6 Test Points