Motor Power Supply Assembly; Required Tools; To Remove The Motor Power Supply Assembly - Sun Microsystems Enterprise Tape Library 7/3500 Field Service Manual

Motor Power Supply Assembly

Each library has two motor power supply assemblies. The following procedure
applies for each power supply assembly.

Required Tools

Phillips screwdriver

To Remove the Motor Power Supply Assembly

1. Remove power from the library.
Caution – DO NOT disconnect the power cord from facility power or the library.
The power cord is the only means of grounding the chassis and helping to prevent
electrostatic discharge (ESD) damage.
2. Connect your ESD wrist grounding strap to the closest grounding point on the
frame of the library.
3. Remove the top and right cosmetic panels as shown in "Top, Right, and Left
Panels" on page 92.
4. On the selected motor power supply, loosen all of the terminals on the power
supply barrier strip.
5. Remove the wires.
Note – Make note of each wire and its connection point.
6. Remove the controller electronics assembly. See "Controller Electronics
Assembly" on page 97 for removal instructions.
7. From the back of the controller electronics assembly, remove the lower mounting
screw from the motor power supply.
Note – If you are replacing PS2, also remove the over voltage protector.
8. Loosen the upper mounting screw.
9. Lift out the motor power supply.
154 Sun Enterprise Tape Library 7/3500 Field Service Manual • July 1997