The screen you're seeing normally indicates that the machine's doing its startup RAM check. I don't know if the LC's got onboard RAM, but you could try removing the RAM SIMM, as it could be a large one (large memory, such as 128MB or more, tends to result in a very long RAM check 
).
If that doesn't help, then I suspect that it's the capacitors. Bad capacitors can cause memory corruption (hence failing the memory check) and also weird flickers and ticks like those that you have described. They can also cause a lack of (or an exceptionaly quiet) startup chime. Finally, they can additionaly cause corrosive goo to form on the logic board, which subsequently damages it.
It's certainly not the monitor. In your picture asking about the lack of knobs, there should certainly not be any knobs there-mine hasn't got any either.
).If that doesn't help, then I suspect that it's the capacitors. Bad capacitors can cause memory corruption (hence failing the memory check) and also weird flickers and ticks like those that you have described. They can also cause a lack of (or an exceptionaly quiet) startup chime. Finally, they can additionaly cause corrosive goo to form on the logic board, which subsequently damages it.
It's certainly not the monitor. In your picture asking about the lack of knobs, there should certainly not be any knobs there-mine hasn't got any either.