Lincoln Electric 11519 Service Manual page 58

F-12
MAIN TRANSFORMER TEST (continued)
FIGURE F.1 — G4824 CONTROL PC BOARD MAIN TRANSFORMER TEST POINTS
X9
(8J5)
#206
(3J5)
#208
(2J5)
#209
(1J5)
PROCEDURE
WARNING
The ON/OFF POWER SWITCH will be "hot" dur-
ing these tests.
-------------------------------------------------------------------
NOTE: Secondary voltages will vary proportion-
ately with the primary input voltage.
1. Disconnect the main input power supply to the
machine.
2. Remove the case top and side panels with a 3/8
in. nutdriver.
3. Remove the tool tray with a 5/16 in. nutdriver.
4. Locate plug J6 on the control PC board. See
Figure F.1.
TROUBLESHOOTING AND REPAIR
Power MIG® 255XT
J6
J5
J8
J1
J4
J3
J2
NOTE: The location of plugs may vary depending
on the machine code.
5. Locate the following leads on plug J6 on the
control PC board:
LEAD
X5
X6
X7
F-12
X5
(6J6)
X6
(5J6)
X7
(4J6)
X8
(16J5)
PLUG
LOCATION
6J6
5J6
4J6