Current limiting high voltage - ccfl inverter help ? Answered
Okay as my first question i'll say hi first , and Darren from Ireland here , fair "know how" of electronics and how things roughly work.
I have a 32inch TV who's inverter board is toast (okay its going on and off straight away) , I know its getting power from the psu board as there is little or no voltage drop when I flip the TV on and the lights fire up.
I have asked 3 people at work (Electro techs at work) and they all say the same thing , replace the board , its too much work (I think there just lazy) and also they all say they would need the data sheet on all components or the circuit diagram.
So well me with my stupid head wants to try and have a stab and getting a free TV.
So I have ordered a CCFL inverter power source for a neon case light , which I intend to use just to see if any one bulb is gone as im not sure if that is what could be kickin the inverter off.
And the other thing i have ordered is a "Universal inverter for 10-30v 4 bulb 17-24inch" from ebay.
So the question is , if one bulb is gone and well i doubt i can order a bulb like this and replace as that would be end of tv if i open than panel . is there a way to simulate that bulb working in any way to stop the inverter going off because of one bulb.
And the other question is , if I want to use this universal inverter , what is causing it too be a 17-24 inch only ?
From what I understand is if I am wrong correct me please , that the larger bulb would burn the driver chips/fet's drawing too much current.
So would there be a easy / safe way to just limit the out put so they will run but a little dim (as the tv is intended to be used in a dark room any way)
Any ideas welcome , and for what ever comes up , Thanks !