While you wait for answers, we may have found some information which could help you.
Click here for Tv Lock Lostonn ostb01 code required ( sat digi box)?
Could the power cord go bad?
sharp lc-32d44e flashing red to green to red?
Can my TV be repaired?
How can I turn off the tamper proof light on a sharp combo without the remo?
how can i reset the TV?