I removed your duplicate topic, no problem.
A blinking candle light and the messages "Closure" "Restart" are perfectly normal after a power-up. Also, the flickering 1/0/1/0 for the door sensor in the self test inputs is 100% normal, and that's actually a good sign -- it means your door optics are working properly. The machine uses a pulsed signal to help prevent someone from circumventing the door optics.
Can you post a picture of the screen? From what you've described, it sounds like the machine is just waiting for you to insert a coin(s) and play. You need to make sure you have a sample coin in the coin comparator, and you may need to adjust the sensitivity on the comparator to make it less likely to reject coins, if any coins inserted are being rejected. Once you have inserted five coins (for most video poker games), it will automatically deal the cards, so this leads me to believe that you're seeing the outcome of the last hand played and the machine is simply waiting for you to insert coin(s) to play again.