1 black screen after cleaning
I disassembled and cleaned the dust from a WORKING G4 iMac 700 Mhz with 15" monitor. Now I get a black screen on startup. After the startup chime a pure tone sounds three times. Then the monitor light blinks a repeating pattern: once long, 3 times medium and 1 brief flash.
I re-opened up the case and found no loose connections. This is not a backlight problem.
The tones and flashes must mean something. Anybody?
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