To Replace The X-Axis Interconnect Pwa; To Troubleshoot - Sun Microsystems Enterprise Tape Library 7/3500 Field Service Manual

Note – The PWA is accessed through the service port directly under the tape drives.
5. From the right side, remove the Phillips screws securing the strain relief to the
PWA.
6. Disconnect the cables.
7. From the left side, remove the ESD guard mounting hardware.
8. From the right side, remove the guard and liner.
Caution – Pay attention to the orientation of connector Px when you remove it.
Reinstalling connector A4_J4 incorrectly causes the library robotics to malfunction
and may cause damage to the library.
9. Disconnect the horizontal home sensor, connector A4_J4.
10. Disconnect the y-axis motor connector A4_K3.
11. Remove the remaining two Phillips screws that secure the PWA to the horizontal
frame.
12. Carefully lift the PWA out of the library.

To Replace the X-Axis Interconnect PWA

Follow the removal instructions in reverse order.

To Troubleshoot

If the library malfunctions, check the orientation of the horizontal home sensor
connector A4_J4 and reseat it if necessary.
100 Sun Enterprise Tape Library 7/3500 Field Service Manual • July 1997