I have a problem my tv was working fine now when i turned it back on its stuck in standby. i was advised to change the PSU Board so i did but the problem is still there. the board was brandnew any more idea's before i place it on ebay ...LG RZ32LZ50 thank you stottey
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Inverters use square wave voltage, which tends to stifle digital circuits. Leaving something stuck, or not working. Sure, the inverter will work for awhile, but then the rigid square wave eventually causes problems.
Tries tv unplug,replug it back like about an hour later.See,if the tv will resetting self and working again.Not.The tv power supply board it is the causes and the problems.That the board where the tv power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv power supply board for the replacement.
Check to see if you get Va and Vs voltages from the power supply. There should be some wires running to the y-sus. A couple of those wires will be labeled va and vs. Are they present? There will be a sticker stuck to the panel somewhere telling you what they should be.
Your power board has gone bad and is not supplying enough power to start up the inverters. The LED lighting at all shows that you do have standby power, but that is all. You will need to have the power board replaced. Hope this helps.
This unit shouldb e flashing a repeated count on the standby light. That count will indicate the circuit in which a problem was detected causig the shutdown. Please post that count and we should be able to provide details on the repair.
According to Sharp it is a software problem. Engineer came, installed software update ,10 minute job.....TV worked fine for 1/2 day unfortunately: Then images turned black and white in all channels TV turned itself off, and stanby and OPC buttons started flashing. When TV came back on its own 10 mins later , screen had 2 large square staines superimposed in image (as if it was a burnt screen)...Engineer will be back next week...all quite sad really for a new TV.....will keep u posted
This too was my problem... ended up googling my heart out trying to find the solution to this problem and found a blog posting "AL2671W Stuck in Standby Hey - I fixed a TV! It' s been a long time actually since I did something useful for someone. I got asked to look at an Acer AL2671W LCD TV. Bought for about £500 five years ago, and that was cheap then, recently it has regularly refused to come out of standby. Now it is stuck in Standby and won't work. So where do you start? Google of course! Some results showed that this was a common fault on these TV's. One guy in a forum said 'easy fix, replace C280 100uF 16V on the main board'. Good enough of a clue to take a look. You have to firstly remove the SCART socket block before the back will come off and then the inner metal cover over the PSU, audio card and main card as mentioned before. It looks just like a mini ATX card. It is a multi layer, double sided PEC with surface mount and traditional components. Bad news though, no C280 to be found. I buzzed through the front power switch to check it wasn't stuck and traced the cabling to the socket on the main board. Very close by the socket is C380, this is an electrolytic 100uF 16V. Too much of a coincidence? Anyway worth a punt I thought so I changed it for an 100uF 40V I think it was and re-assembled the TV. It worked! the TV now comes out of standby and has been returned to its owners. Result! Posted by andychamb" I end up finding an old ATI card (since it was unsupported with win7) that had the same value capacitor and replaced C380, located around the centre, bottom left corner (the left one). works like a dream.