Question about Hyundai Flat Panel Televisions
This set is dead. The standby light flashes once when the mains voltage is applied and I can find no obvious faults.
Would anyone be able to supply a sevice manual for this model please?
This is quite a common problem on LCD televisions.
It is not a fault you can repair yourself unless you are a competent electronics engineer.
One of the transformers on the inverter board will be the cause as the tend to go open circuit. Being surface mounted adds to the dificulty of changing this item as well.
Posted on Dec 18, 2007
Check all the caps on PSB. if any look puffed , replace them. If you are getting 14volts to the ivnerter board PS is good and the inverter is bad.. good luck
Posted on Apr 10, 2009
You might try resoldering the power supply board.Go over it with a magnifier and look closely to find the bad spot. Or resolder the whole board. This fixes a few of these type LCD's. Also look for the tops of capacitors that have bulged.
Posted on Aug 03, 2009
Your main board is faulty. I've done several of these but haven't been able to figure out which component is actually bad these yet. I've simply had to replace the board itself, and it fixes it every time. One thing you can do to get your backlights to come on (and so you know I'm not Jive'n you) Is unplug the three wire bundle that spans from power supply to main board. This will usually make the backlights fire up. I even had one that after I left it that way for a minute (with the backlight on) it suddenly started working again! But this was short lived. :-(
One time I even tried recapping the entire main to see it that would fix it. It did not. I think it might be something to do with the small chip labeled SL37HA37. It's a 16 legged bastard near the 3-wire plug I told you to pull. It's that or possibly the bigger IC near it that has a heat sink on it. The ball grid array solder joints may be faulty. Just guesses, if any smart guys out there figure this one out, be sure to tell the rest of us please!
Thanks, Chris Boise LCD www.boiselcd.com
Posted on Apr 23, 2010
SOURCE: sharp agous .. no power
I have same problem, In Caribean and repairs and new TVs are extra costly. Bringing power supply back with me to USA to see if I can buy a new one.
Posted on Apr 24, 2010
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B+ over voltage protection (OVP), unit goes to the standby mode then
displays the 3 blink fault. This is also a problem in the power
supply circuit, check T603 and R672.
Have you set the output voltage correctly?
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