Question about RCA L42WD22 42 in. LCD Television
This occured overnight when unit was off, would not power up next day, unit is 5and 1/2 years old
Its more than likley a power supply issue bad caps or bad regulator etc. Replacing the power supply board may solve the issue for you. You can get replacement power supply board from www.tvcircuitboards.com
Posted on Jan 12, 2013
The sound was came from the clicking of the relay. This kind of symptoms is an indication of out-of-regulation condition on the power supply section. This is caused by faulty electrolytic capacitor. It will dropped the supply voltage and will trigger that kind of symptoms.
Faulty electrolytic capacitor mostly has a physical indication of fault like bulged/dome at the top and can be easily identified. See sample picture of faulty electrolytic capacitor below.
capacitor with bulged/dome at the top.
Check these parts on the power supply section. Once found, replaced it with same capacitance and working voltage which is printed on its body itself. Click this LINK for more info regarding electrolytic capacitor.
If you don't have necessary tools and test instrument and can't troubleshoot the unit yourself, I would advice you to look for a qualified TV Technician to isolate the faulty parts.
Hope I helped you.
Have a nice day!
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Posted on Aug 05, 2011
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.
Posted on Oct 27, 2012
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