Lincoln Electric INVERTEC SVM161-A - Manual (Page 72)

BACK SIDE
MAIN BOARD
FIGURE F.14 – LOCATION ON MAIN BOARD
TABLE F.10 – VOLTAGE CHECKS WITH 115 VAC APPLIED TO MACHINE
TABLE F.11 – RESISTANCE CHECKS
MAIN INVERTER BOARD POWER FACTOR SECTION TEST (continued)
PROCEDURE
1. Remove input power to the V205-T machine.
2. Using a phillips head screwdriver, remove the
case wraparound cover.
3. Perform the Capacitor Discharge Procedure
detailed earlier in this section.
4. Locate the power factor section on the main
board and associated plugs. Do not remove
plugs from the board. See Figure F.15.
5. Carefully apply the correct input voltage to the
V205-T and check for the correct secondary
voltages per tables F.10 & F11. Voltage read-
ings were taken with a Fluke RMS meter. See
Figure F.15 for joint locations.
TROUBLESHOOTING AND REPAIR F-32 F-32
INVERTEC® V205-T AC/DC™
Generator/Mode
ON/STICK
ON/STICK
ON/STICK
ON/STICK
ON/STICK
ON/STICK
ON/STICK
Component
DD1
MF8
MF8
MF9
MF9
-------
TP20-TP9
Ref. Point
A[-],K[+]
S[-],D[+]
S[-],G[+]
S[-],D[+]
S[-],G[+]
L10 (LED)
-------
Value
250-260 VDC
125 VDC
2.2 VDC
120 VDC
2.2 VDC
ON
385 VDC +/-5V
Generator/Mode
OFF
OFF
Component
F1
R82
Ref. Point
-------
-------
Value
<1 OHM
46 OHM
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