Replacing The Oscillator - Epson EL 486UC User Manual

Replacing the Oscillator

If you are installing a 486SX/33, a 486DX/33, or a 486DX2/66
processor, you must replace the existing oscillator with an
Ecliptek 33 MHz oscillator (EC1100). Follow these steps to
remove the existing oscillator and replace it with the new
oscillator:
Use the illustration on page 3-5 to locate the oscillator on the
1.
system board.
Use scissors or a small knife to cut the tie wrap securing the
2.
oscillator to the system board, then discard the tie wrap.
Using your fingers, pull the oscillator straight up and set it
3.
aside.
Remove the new oscillator from its package, being careful
4.
not to touch the pins.
Position the oscillator over the socket. Make sure pin 1
5.
(identified with a dot) aligns with pin 1 on the socket. A
triangle traced on the system board identifies the side of the
socket containing pin 1.
Installing and Removing Options
dot (pin 1)
triangle
3-29