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Equipment Repairs => LCD TV forum => Topic started by: station-master on July 08, 2014,05:26:03

Title: Lg 42ls575t
Post by: station-master on July 08, 2014,05:26:03

Can someone help with the above set when I power it on power led blinks 28 times,
When the led blinks it seems to blink 4 times pause for a slight second, it does this 7 times
So could blink 28 times or 7 sets of 4 blinks.thanks

Title: Re: Lg 42ls575t
Post by: t1412 on July 08, 2014,06:03:43

hi check your voltages,also any 1000mf 10v caps

regards
shaun   

Title: Re: Lg 42ls575t
Post by: station-master on July 08, 2014,06:10:49

Hi Shaun there's no 1000uf 10v caps on this psu
The psu in this TV is a EAX64427101

Title: Re: Lg 42ls575t
Post by: t1412 on July 08, 2014,10:57:13

check the large diodes thanks

shaun   

Title: Re: Lg 42ls575t
Post by: station-master on July 10, 2014,07:07:39

Hi t1412 I managed to get a working psu today TV still giving the same led flashing error I've unplugged everything from the main board apart from the psu and the power led cable still doing the same so fault must be on the main board ?

Title: Re: Lg 42ls575t
Post by: station-master on July 13, 2014,06:04:29

Small update hot a replacement av board but pictures upside down any help on flipping back the right way thanks.

Title: Re: Lg 42ls575t
Post by: downunder on July 13, 2014,06:22:29

I'd say you got the main board for a different model. Some sets have the T-Con board at the top of the panel while in others it at the bottom. Picture inversion to account for this is done on the main board. I'd be surprised if the option could be reversed in the service menu. A software upgrade may be available, otherwise it's a case of getting the right main board.

Title: Re: Lg 42ls575t
Post by: station-master on July 13, 2014,06:55:54

Hi got it from exact same model both have same marking on board even have the same dates and board numbers tried a software update but didn't make a difference .
Update
The original board that was in the TV was a eax64307906(1.0) EBT62136959
New board is a eax64307906(1.0) EBT62225714
Does the EBT number need to match thanks

Title: Re: Lg 42ls575t
Post by: sparky on July 13, 2014,08:27:07

Hi all part numbers have to match otherwise will not work

Title: Re: Lg 42ls575t
Post by: station-master on July 13, 2014,08:40:20

Hi sparky according to the company that sold me this I will be able to rectify this in the service menu but I need a service remote?