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F-48
TROUBLESHOOTING & REPAIR
F-48
IDEALARC SP-250
PROCEDURE
1. Disconnect main input power to the
machine.
2. Remove the Case Top and Side
Panels.
3. Perform the Capacitor Bank
Removal Procedure.
4. Remove lead X1 from the left side
SCR heat sink assembly using a
1/2" socket wrench, extender and
universal adapter.
5. Remove lead X4 from the right side
heat sink assembly using a 1/2"
socket wrench, extender and univer-
sal adapter.
6. Disconnect all leads from the recon-
nect panel using a 3/8" open end
wrench.
7. Disconnect all leads from the
POWER SWITCH.
8. Remove the POWER SWITCH.
9. Label and cut leads #202, #203,
#204A.
a. Cut lead #204A at a point just in
front of the transformer.
b. These leads must be re-spliced
during reassembly.
c. An alternative to cutting these
leads is to remove them from
Molex Plug J3 and pull them
free of any wire bundles.
10. Remove all cable ties, wire mounts,
- and any harness tape that could
get in the way during transformer
removal using wire cutters and
screwdriver.
11. Remove the four screws mounting
the transformer to the floor of the
machine using a 5/16" nut driver.
12. Disconnect the positive output lead
at the wire drive motor.
13. Remove the strain relief grommet
through which the positive output
lead passes through the horizontal
baffle of the machine.
14. Pull down on the positive output
lead until it slides out the hole in the
baffle.
15. Carefully remove the main trans-
former.
a. Be sure all leads are clear.
MAIN TRANSFORMER REMOVAL AND REPLACEMENT
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