What is happening it powers up and it shows the balance logo and then it goes black;still on just black and does nothing at ALL and I was wondering if its the cmos battery or motherboard or possibly the OS was wiped out the model no.557s ummm balance digital technology is what i know if you need anything else im here to answer!! --thnx
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Nobody can predict, what might have been happened to your TV after a lightning strike. Do you thing anybody can? Is any technician have a super-natural power to predict the faults that might have been happened due to lightning (More than 10 Million volts to start on stroke) ? Can you?
Contact the authorized service center. OK? http://electronicshelponline.blogspot.com/
Does the screen turn on (blue) and then go black or does it stay blue? Mine has a similar problem where when the main power switch is flipped, it lights up, shows the initialization screen, then goes dark. Pressing any button on the console does nothing. I opened the console up and suspect one programmable microcontroller is bad. I'm going to see if I can get that part from FitnessQuest instead of replacing the whole board.
same thing happens to me - most of the time it will just randomly freeze; occasionally i get an unresponsive black screen. this 24' aluminum imac usually has startup problems also - sometimes it will "gong" and nothing else; sometimes the apple logo will come up and then nothing else; sometimes it will load the logo and then spin for a few seconds and then freeze - the only option is to manually shut down. there is no rhyme or reason to it
no there is nothing wrong with the motherboard, please shut it down, disconnect all the connectors, leave it for 10 or 15 min then connect only keyboard mouse and power and monitor cable, and switch it on, see what u get. let me know ok? i am waiting for ur reply :-)
I would try the following: 1. Remove the battery completely. If the computer boots properly several times in a row, then the battery may be causing the power supply to do strange things. 2. If you have experience removing laptop components, try removing the hard drive. Because you say the screen goes black (I assume the system powers off) sometimes after the HP logo, I doubt its Windows or a software issue. 3. If HP has a diagnostic CD you can boot to, try that. 4. It may be the power supply acting up. If it charges the battery, and if you can boot to Windows with the battery, try getting a new power supply. 5. Otherwise, it may be the motherboard of the laptop.