2 -
Apple Cinema HD Display (23-inch DVI) Trouble-
Power Symptom Charts
Symptom Charts
How to Use the Symptom Charts
The Symptom Charts included in this chapter will help you diagnose specific symptoms
related to the product. Because cures are listed on the charts in the order of most likely
solution, try the cures in the order presented. Verify whether or not the product continues
to exhibit the symptom. If the symptom persists, try the next cure.
Note:
If you have replaced a module, reinstall the original module before you proceed to
the next cure.
Power
Power switch or brightness button not working
1. Refer to Knowledge Base article 58813 to verify that the touch switches have not been
disabled.
2. Check connector J4 at the main board. Reseat the cable at the main board and at the
touch switch board.
3. Replace the touch switch cable.
4. Replace the right end cap that includes the touch switch board.
No power
1. Check the wattage that is printed on the power adapter. See the table below to verify
that the power adapter shows the correct power rating for this display. (For more
information, refer to Knowledge Base article 86800.)
2. Use a known-good power adapter, and check all cable connections.
Display 65 W 90 W 150 W
Apple Cinema Display (20-inch DVI) yes yes yes
Apple Cinema HD Display (23-inch DVI) no yes yes
Apple Cinema HD Display (30-inch DVI) no no yes
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