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TROUBLESHOOTING & REPAIR
F-56 F-56
LN-9 Wire Feeder
PROCEDURE
1. Remove input power to the LN-9.
2. Using the phillips head screw driver remove
the screws holding the left side cover assem-
bly.
3. Lift the cover.
4. Disconnect primary lead #532 from the power
PC board terminal.
5. Disconnect the primary lead #31 from the R1
(2 ohm) resistor. See Figure F.16. Upon
reassembly this lead will have to be soldered
onto the R1 resistor.
T1 TRANSFORMER REMOVAL AND REPLACEMENT (continued)
FIGURE F.16 – PRIMARY LEAD #31 AT R1 RESISTOR
R1
RESISTOR
LEAD 31
LEAD 532