Robotics Controller Fuse Isolation Entry Map - Sun Microsystems Enterprise Tape Library 7/3500 Field Service Manual

Robotics Controller Fuse Isolation Entry MAP

On the robotics controller, connect
an ohm meter to a ground test point
and to a test point for the voltage of
the blown fuse (see
FIGURE 4-24
page 147). Resistance should be
less than two ohms. Short present?
Yes
Disconnect J8 (see
on page 147).
FIGURE 4-24
Short still present?
Yes
Disconnect J7 (see
on page 147).
FIGURE 4-24
Short still present?
Yes
Disconnect J9 (see
on page 147).
FIGURE 4-24
Short still present?
Yes
Replace the robotics
controller (see "Robotics
Controller PWA" on
page 145).
No
Replace blown fuse.
on
See "Actuator Driver Fuse
No
Isolation Entry Map" on
page 68.
Replace the control panel
No
(see "Control Panel
Assembly" on page 141).
Replace blown fuse.
See "Tape Drive Interface
No
PWA Isolation Map" on
page 83.
See "Fault Isolation Entry
MAP" on page 48.
Chapter 3 Troubleshooting and Fault Isolation 67