Troubleshooting & repair, Mode board removal and replacement (continued), F-67 – Lincoln Electric INVERTEC V350-PRO SVM152-A User Manual
Page 105
TROUBLESHOOTING & REPAIR
F-67
F-67
V350-PRO
FIGURE F.27 – CASE FRONT SCREW REMOVAL
Input Power
Switch Screws
Welder Output
Terminal Screws
5/16" Screws
5/16" Screws
O F F
O F F
O F F
O F F
O F F
O N
O N
HOT START
WELD MODE
ARC CONTROL
CC-STICK SOFT
CC-STICK SOFT
CC-STICK CRISP
CC-STICK CRISP
TIG GT
TIG GTAW
CV
CV-WIRE
-WIRE
CV
CV-FLUX CORED
-FLUX CORED
-4
-4
+4
+4
+2
+2
-2
-2
0
-6
-6
+6
+6
-10
-10
SOFT
SOFT
CRISP
CRISP
+10
+10
-8
-8
+8
+8
5
4
3
2
1
0
6
10
10
9
8
7
SELECT
SELECT
REMO
REMOTE
TE
ON
ON
REMO
REMOTE
TE
LOCAL
LOCAL
m
WELD
WELD TERMINALS
TERMINALS
OUTPUT
OUTPUT
CONTR
CONTROL
OL
SELECT
SELECT
SELECT
SELECT
MPS
MPS
A
OL
OLTS
TS
V
MODE BOARD
REMOVAL AND REPLACEMENT (continued)
5. Using a 5/16” nut driver remove the four
screws from the top and bottom of the front of
the machine. See Figure F.27.
6. Using a phillips head screwdriver remove the
six screws and their washers from around the
input power switch. See Figure F.27.
7. Using a phillips head screwdriver remove the
four screws from around the two welder output
terminals on the front of the machine. See
Figure F.27.
8. The front of the machine may now gently be
pulled forward to gain access to the mode
board. Note: The front of the machine cannot
be removed completely, only pulled forward a
few inches.