RCA LCD TV red light flasiing tv won't come on

Bad main logic board. Probably won't be able to find it. You can try Encompas Parts. Good Luck to you.

I acquired a 42" RCA LCD TV (model L42WD22) that would not come on. When you pressed the power button, the power indicator light on the front of the TV would blink red 5 times. It would then pause for a few seconds and blink red 5 times again, etc. I work as a technician so I took the TV apart. It had capacitors in the power supply section that had overheated and were obvious by looking at them. I replaced all the caps that looked like that, and the TV has been working for days and days after that. The manufacturer uses cheap components when they built, but capacitors don't last forever anyways, even good quality caps.

Hope that may help.