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Chapter 3
Troubleshooting and Fault Isolation
69
Power Supply Evaluation Entry MAP
See “Fault
Isolation Entry
MAP” on page 48.
Verify AC power is on.
Check +5V,+12V,-12V for robotic controller power.
Check +5V,+12V on both power supplies for tape drives.
Continue with actuator
driver PWA power checkout
on page 70.
On the robotics controller PWA, measure -12V
on input side of F1 (see
FIGURE 3-1
on page 84).
Between -11.4V and -12.6V?
On the robotics controller PWA (see
FIGURE 3-1
on page 84), m5V on input side of F2.
B5.05V and +5.15V?
M12V on input side of F3.
B11.5V and +12.5V?
Adjust PC power supply
(see “PC Logic Power
Supply Assembly” on
page 151).
+24V or +48V power problem?
Can PC power
supply be adjusted
within limits?
Replace PC power
supply (see “PC Logic
Power Supply
Assembly” on
page 151).
No
No
No
No
Yes
Yes
Yes
Adjust PC power
supply (see “PC Logic
Power Supply
Assembly” on
page 151).
Yes
For tape drives 3-6, m5V at drive
connectors on tape drive MUX PWA (see
FIGURE 4-21
on page 140). B5.05V
and +5.15V?
M12V at drive connectors.
B12.0V and +12.4V?
No
Yes
Содержание Enterprise Tape Library 7/3500
Страница 10: ...x Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 26: ...xxvi Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 28: ...xxviii Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 52: ...22 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 FIGURE 1 11 Fan Locations TJ00016a ...
Страница 76: ...46 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 116: ...86 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 FIGURE 3 3 Tape Drive Interface PWA TA00109b ...
Страница 118: ...88 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 167: ...Chapter 4 FRU Removal and Replacement 137 FIGURE 4 20 Tape Drive Distribution PWA Tape drive distribution PWA TJ00081A ...
Страница 177: ...Chapter 4 FRU Removal and Replacement 147 FIGURE 4 24 Robotics Controller PWA TJ00036a Robotics controller PWA ...
Страница 192: ...162 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 231: ...Glossary 3 ZIF connector Zero insertion force connector ...
Страница 232: ...4 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...
Страница 242: ...10 Sun Enterprise Tape Library 7 3500 Field Service Manual July 1997 ...