A SERVICE OF

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TROUBLESHOOTING & REPAIR
F-34 F-34
V350-PRO
AUXILIARY TRANSFORMER TEST (continued)
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.
4. Locate the auxiliary transformer. See Figure
F.8.
5. Locate the secondary leads and plug P52.
See Figure F.8 and F.9.
FIGURE F.8 Auxiliary Transformer
FIGURE F.9 Plug Lead Connections Viewed From Transformer Lead Side of Plug
WARNING
REMOTE
POWER
OFF
ON
A
AMPS
A
V
VOLTS
W
E
LD
T
E
R
M
IN
A
LS
S
E
LE
C
T
OUTPUT
HO
T STAR
T
ARC
CO
NTROL
-4 +4
+2
-2
0
-6 +6
-10
SOFT
CRISP
+10
-8
+8
5
4
3
2
1
0
6
10
9
8
7
SELECT
CC-STICK 7018
CC-STICK 6010
TIG GTAW
CV-WIRE
CV-FLUX CORED
Auxiliary
Transformer
Secondary Lead
Plugs P52
Plug P52
31
1
2
3
4
5
678
161514
13
12
11
10
9
54
541
532
42
24