Troubleshooting & repair, Encoder pc board test (continued) – Lincoln Electric POWER MIG SVM165-A User Manual
Page 78
TROUBLESHOOTING & REPAIR
F-32
F-32
POWER MIG 350MP
Retur
n to Section TOC
Retur
n to Section TOC
Retur
n to Section TOC
Retur
n to Section TOC
ENCODER PC BOARD TEST
(continued)
FROM LEAD TO LEAD EXPECTED VOLTAGE
855
3243
15 VDC
5J85
3J82
8511
3243
0 OR 15 VDC
11J85
3J82
858
3243
0 OR 15 VDC
8J85
3J82
VOLT/TRIM ENCODER #1
ACTION
If you do not read 15 VDC on the first reading of
encoder #1 or #2 then check lead connections. If lead
connections check OK, then Feeder Board may be
faulty, replace Feeder Board.
As you turn the encoder #1 or #2 slowly you should see
your meter go from 0 to 15, 0 to 15 as you turn the
encoder. If not, check the lead connections. If the lead
connection check OK then, change the encoder.
FROM LEAD TO LEAD EXPECTED VOLTAGE
859
3243
15 VDC
9J85
3J82
857
3243
0 OR 15 VDC
7J85
3J82
WMF/AMPS ENCODER #2
ACTION
If you do not read 15 VDC on the first reading of
encoder #1 or #2 then check lead connections. If lead
connections check OK, then Feeder Board may be
faulty, replace Feeder Board.
As you turn the encoder #1 or #2 slowly you should see
your meter go from 0 to 15, 0 to 15 as you turn the
encoder. If not, check the lead connections. If the lead
connection check OK then, change the encoder.