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V350-PRO
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TROUBLESHOOTING & REPAIR
F-73 F-73
STATUS 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.31.
6. Using a phillips head screwdriver remove the six
screws and their washers from around the input
power switch. See Figure F.31.
7. Using a phillips head screwdriver remove the four
screws from around the two welder output termi-
nals on the front of the machine. See Figure F.31.
8. The front of the machine may now gently be pulled
forward to gain access to the status Board.
Note: The front of the machine cannot be removed
completely, only pulled forward a few inches.
9. The status board is now accessible to replace.
FIGURE F.31 – FRONT SCREW REMOVAL
Input Power
Switch Screws
Welder Output
Terminal Screws
5/16" Screws
5/16" Screws
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
HO
HO
T ST
T ST
AR
AR
TWELD MODE
WELD MODE
ARC CONTR
ARC CONTR
OL
OL
CC-STICK SOFT
CC-STICK SOFT
CC-STICK CRISP
CC-STICK CRISP
TIG GT
TIG GT
AW
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
REMOTE
ON
REMOTE
LOCAL
m
WELD TERMINALS
OUTPUT
CONTROL
SELECT SELECT
MPS
A
OLTS
V