01-08-2014, 03:12 PM
Ok i am looking for any info/help i can get if any of you are experienced in the repair of or maybe had the same type of problem im having.... I have a 39" RCA 1080p HDTV-39LB45RQ i bought 14 mounts ago (yes im 2 months out of warranty fuck me)
anyway this TV has been great except all of a sudden about 2 weeks ago it decided to turn itself off. It then seemed to not power back on i thought it was my cable/sat at first, long story short i finally realized the TV led power light was on but the screen was black= no sound no picture. I unplugged it, reset, still nothing power light came on but still black screen and the power wont go off after i turn it on. So after messing with it for a day unplugging and power on pressing buttons it finally to my surprise flicked back on and it seemed to work fine so i just didn't bother turning it off... then yesterday i accidentally hit the power button on my remote and powered it off. When i tried to power it back on the red led blinked a few times (i think 3) and then turned it self off. now back to the same thing... when i plug it in the red led comes on, i hit power blue led comes on (like it should) but screen is still black no sound no picture (or back light that i can tell) and it wont turn back off. I have a little knowledge about circuits and circuit boards so i took the back off thinking i would be able to see a blown capacitor or a fuse or something of the sort but i found nothing... no visible damage i can see so i dont know what to replace
I don't have a digital multimeter so i cant really check for resistance or voltage at this time... but i hate working on boards anyway i just wanted to know what one was most likely blown so i could replace the whole board... was going to post a pic of my actual TV but stuff is not co-operating for me today.... 


here is some links of my exact boards mine look identical as i inspected with a magnifying glass...
This is my main board
This is my powersupply board
If any of you have any info or questions to better assist me let me know i don't want to have to buy both boards as i am broke as a joke and im running low on smoke....
lol
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