Ac Capacitor (C12) And Capacitor C3; C12 Removal And Replacement; C3 Removal And Replacement - IBM 5256-1 Maintenance Information Manual

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185
AC CAPACITOR (C12) AND CAPACITOR C3
See 184 for a capacitor check.
C12 Removal and Replacement
1.
Power off.
2.
Disconnect the line cord from the wall outlet.
3.
Remove the back cover (110).
DANGER
This AC capacitor might contain enough power
to cause a lethal shock or a severe burn.
Always discharge the capacitor by placing a
screwdriver from each terminal to the case
D.
4.
After discharging the capacitor, remove the leads.
5.
Loosen the capacitor clamp
II
and remove the
capacitor.
6.
Reinstall the capacitor by reversing this procedure.
184,185
Remove, Replace,
Adjust
C3 Removal and Replacement
See 184 for a capacitor check.
1.
Remove the power supply board A 1 (186).
2.
3.
Note the polarity connections. Then, remove the 2
capacitor connecting screws
II
on the bottom of
power supply board A 1.
To replace the capacitor, reverse this procedure.
Position the capacitor as far to the rear as
possible.
Maintenance
5256 MIM
1-63

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