Sun Microsystems Enterprise Tape Library 7/3500, Field Service Manual

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148 Sun Enterprise Tape Library 7/3500 Field Service Manual • July 1997
Actuator Driver PWA
Required Tools
Phillips screwdriver
▼
To Remove the Actuator Driver PWA
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, left, and right cosmetic panels as shown in “Top, Right, and Left
Panels” on page 92.
4. From the right side of the library, disconnect connectors A2_J1, A2_J2, A2_J4,
A2_J5,A2_J6 and A2_J7 from the actuator driver PWA. (
FIGURE 4-25
).
Note –
To prevent the difficult retrieval of dropped hardware, cover the fan opening
directly below the controller electronics assembly.
5. Remove the screws from the perimeter of the actuator driver PWA.
Note –
Hold the actuator driver PWA securely when removing the last mounting
screw.
6. Remove the screws from inside the heat sink channel on the actuator driver PWA.
7. Lift out the actuator driver PWA.
Note –
The screws removed from the heat sink are longer.