Lincoln Electric INVERTEC SVM158-A Service Manual page 84

F-34
AUXILIARY TRANSFORMER TEST (continued)
Secondary Lead
Plugs P52
TEST PROCEDURE
1. Remove input power to the V350-PRO.
2. Using a 5/16" nut driver, remove the case
wraparound cover.
3. Perform the Input Capacitor Discharge
Procedure detailed earlier in this section.
FIGURE F.9 Plug Lead Connections Viewed From Transformer Lead Side of Plug
TROUBLESHOOTING & REPAIR
FIGURE F.8 Auxiliary Transformer
Auxiliary
Transformer
A
A M
P S
V
V O
LT S
A
O U
CC
-S TI T P
CK U T W E
CC 70
-S TI 18 LD
CK T E
TI G 60 R M
G TA 10 IN
A LS
CV W
-W
IR E
CV
-F LU H O
X CO T S S E
LE
RE TA R T C T
D 4
5
3
SE
LE 6
CT 2 A R
W AR C C
NI O N
NG 7 TR
1 O L
-2 0
0 8 -4
+2
RE 9 -6
M OT 10
E
+4
-8
+6
-1 0
SO
FT +8
+1
CR 0
IS P
PO
W
ER
ON
OF
F
532
1 2
3 4
10 12
9 11
Plug P52
31
V350-PRO
4. Locate the auxiliary transformer. See Figure
F.8.
5. Locate the secondary leads and plug P52.
See Figure F.8 and F.9.
24
42
5 6 7 8
14 15 16
13
54
541
F-34