IBM 770 Hardware Manual
SYMPTOM-TO-FRU INDEX
5. Determine if the problem has changed.
6. If the problem does not recur, reconnect the removed
6. If the problem does not recur, reconnect the removed
devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRUs
one at a time. Do not replace a nondefective FRU.
a. System board
b. LCD assembly
c. DC-DC card
d. Video card
e. CPU card
a. System board
b. LCD assembly
c. DC-DC card
d. Video card
e. CPU card
ThinkPad 770, 770E, 770X and 770Z
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