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07-30-2012, 06:36 AM
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#1 |
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New Member
Join Date: Jul 2012
City & State: St Venera
My Country: Malta
I'm a: Knowledge Seeker
Posts: 2
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Le37a558
Dear friends,
This my first thread and hope there will be more in the future. I have a Samsung LE37A558. The picture is OK when switched on, however it gets darker with time. When the set is switched off and on again the picture appears and then fades off within a minute. Thanks to all reading this thread. doncia |
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07-30-2012, 08:31 AM
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#2 |
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Badcaps Veteran
Join Date: Apr 2011
City & State: University of Leeds (MEng ElecEng undergrad)
My Country: UK
Line Voltage: 230Vac 50Hz
I'm a: Student Tech
Posts: 13,487
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Re: Le37a558
It sounds like an LCD panel fault, but it could be a T-con board fault.
__________________
** Begin Signature ** I fix TVs and electronics as a hobby and to save nice things from the dump. 40 LCD TVs, 4 monitors, 13 plasma TVs, and a 6.1 system! Free service manuals database: http://www.tgohome.com/ServiceManuals - Have a manual? Need a manual? Please PM me. I have successfully fixed (from best --> worst build quality): 3 Panasonic Plasmas, 1 Yamaha HTS, 1 NEC Plasma, 2 Sharp LCDs, 2 Toshiba LCDs, 5 Philips Plasma/LCD, 1 Hitachi Plasma, 5 LG LCD/Plasma, 10 Samsung LCD/Plasma, 1 Thomson Plasma, 1 Atec LCD, 1 Hanspree LCD, 1 Xerox LCD, 1 Harwa LCD, 2 Proview LCD, 2 Hyundai LCD, 1 "Onn" LCD, 1 Dell LCD, 1 iiyama LCD, 1 Logik LCD, 5 Bush LCD, 9 Vestel LCDs [Please do not PM me for help: I am a busy student, and we prefer input from all sides on this forum.] |
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07-30-2012, 10:48 AM
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#3 |
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Badcaps Veteran
Join Date: Dec 2011
City & State: Kucova, Albania
My Country: Albania
Line Voltage: 220V 50Hz
I'm a: Student Tech
Posts: 219
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Re: Le37a558
it seems to have a Samsung panel. very notorious one. best thing would be swapping another t-con into it, just to rule this out if the problem persist. may be also a tab issue.
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07-30-2012, 05:47 PM
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#4 |
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New Member
Join Date: Jul 2012
City & State: St Venera
My Country: Malta
I'm a: Knowledge Seeker
Posts: 2
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Re: Le37a558
Hi,
Thanks for your interest, Some new developments on the same problem, when the set was left with a dark picture (by mistake it was so dark I thought it was off), I found a nice bright picture. The more I work on this LCD the more I feel as if starting the profession from scratch. Regards doncia |
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07-31-2012, 02:38 AM
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#5 |
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Badcaps Veteran
Join Date: Dec 2011
City & State: Kucova, Albania
My Country: Albania
Line Voltage: 220V 50Hz
I'm a: Student Tech
Posts: 219
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Re: Le37a558
good for you. you should begin stripping it down if you have enough space. consider that you might have to leave it open for days during troubleshooting.
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