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Equipment Repairs => LCD TV forum => Topic started by: quak on November 05, 2013,19:06:05

Title: LE40A686M1FXXU standby led flashing
Post by: quak on November 05, 2013,19:06:05

hi,  i have a samsung LE40A686M1FXXU with standby led flashing, also quiet chirping from psu which is type, BN44-00197A SIP408A,
i have changed caps
    CM812
    CM809
    CM806
    CM804
    CM810
    CM808
but no joy! :03:
have heated remaining caps to melting point but fault remains,
any ideas anyone? regards andre

Title: Re: LE40A686M1FXXU standby led flashing
Post by: t1412 on November 06, 2013,01:32:41

hi i don't know if this apply to this model, usually 40 inch samsungs when you replace the capacitors you have  to short the epprom out but

regards
shaun

Title: Re: LE40A686M1FXXU standby led flashing
Post by: marky mark on November 06, 2013,14:24:50

Try disconnecting everything from the power supply and leave only the mains going in. Do this before you try to distroy the eeprom.

Title: Re: LE40A686M1FXXU standby led flashing
Post by: quak on November 06, 2013,17:06:25

hi, thanks for comments, the main av board number is mt8226 emma bn41 00974b, The difficulty I am having is sussing out which one of those eeproms is the one that's used to store the software i want to try and reset,  any help would be appreciated, andre

Title: Re: LE40A686M1FXXU standby led flashing
Post by: sinclairtv on November 07, 2013,13:08:54

Turn the board over

Title: Re: LE40A686M1FXXU standby led flashing
Post by: quak on November 07, 2013,13:42:49

here are some pics of underside

Title: Re: LE40A686M1FXXU standby led flashing
Post by: watteau on November 08, 2013,06:05:14

Hi,
CHS have an  Eeprom  listed for this model,
S24Cs08afj, but it doesn't look like the one you can link out to reset.
(I think it's IC7004)
Regards

Title: Re: LE40A686M1FXXU standby led flashing
Post by: quak on November 08, 2013,07:31:10

hi, thanks watteau, yes ic is ic7004 on top of board, have put order through chs should arrive quickly considering the price of postage! many thanks and i'll be back once eeprom fitted. andre