'''Help us help you'''. ''The more complete the description of your problem is the more assistance we can provide, and, the sooner we can provide it..''
'''LED #1 is the voltage present light. ''It is always on'' ''' unless your mains or power cord are disconnected/dead.
There should be 8 more LED's. Each points to a particular problem component. There is an LED diagnostic button you need to push to check some of the lights. See [http://support.apple.com/kb/HT2652|this page] for more information.
''If this answer is acceptable '''please remember to return and mark it'''.''