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Hot Issues PowerBook 3400: Display Cable Gasket Installation (8/97 and
PowerBook 3400: Display Cable
Gasket Installation (8/97 and 10/97)
Issue:
The display cables on some PowerBook 3400
computers have been working loose from their logic board
connections. The customer-reported symptoms related to
this issue include no display image or backlight while the
computer is running.
Solution:
The solution in the 8/97 Hot Issue was to install a
foam gasket to the underside of the brightness and speaker
grill to keep the cable connector in place. In fact, the foam
gasket is not available as a service part and cannot be
ordered separately.
If customers report symptoms related to a loose PowerBook
3400 display cable—intermittent or no display image/
backlight—service providers should replace the brightness