Re: Samsung LE37B550A5W - Dark, high contrast, horizontally ghosting image


Replacing the AS15-F has fixed the problem, my TV is up and running again Thank you so much Tom, you are ace!...

Re: Samsung LE37B550A5W - Dark, high contrast, horizontally ghosting image

The measurements are as follows:
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VG1=6.97*
VG2=7.68
VG4=7.65
VG6=7.6
VG8=7.6
VG10=7.57
VG11=7.57
VG12=6.64
VG13=6.87*
VG15=4.87
VG17=4.15
VG19=2.85
VG21=0.52
VG22=0.29
---------------
It's fairly consequent apart from two deviations: VG1 and VG13, the numbers are confirmed by two multimeters. It seems faulty, but could you confirm my conclusion?

Re: Samsung LE37B550A5W - Dark, high contrast, horizontally ghosting image

I'm running an odd setup with a 37" display for generic use and a 22" Wacom for digital painting and sculpting. I'd love to screw the telly on the wall behind the drawing tablet but unfortunately, the landlord would not have anything on the wall.

I'll check the measurements tomorrow and get back with the results!

I haven't done any board repair since I left my previous job, but I'll try to borrow a heat gun, hopefully I didn't forget how to use it

Re: Samsung LE37B550A5W - Dark, high contrast, horizontally ghosting image



Hi Tom,

Thanks for the super quick reply! I've attached a picture of my T-con below.
The gamma IC version is AS15-HF on mine.


This is the only UK seller I found (would rather not order from China this time as I need it up and running as soon as possible, it's essential for me to have 2 displays for 3D modelling), does it seem to be the right part?
[url]http://www.ebay.co.uk/itm/AS15-HF-E-CMOS-INTEGRATED-CIRCUIT-TQFP-48-AS15-HF-/200984312372?pt=U...

Hi there,

My Samsung LE37B550A5W suddenly started showing a distorted picture yesterday, I would really appreciate your thoughts on the problem.

Fault description: The picture went very dark and high contrast. The image seems slightly noisy and everything has a glowing white outline (see comparison) and there's an apparent horizontal ghosting (the horizontal lines follow the movement of program windows, the cursor, etc). The refresh rate seems to be down as well The fault is apparent across the menus and all input I could test (there's no cable attached, so I couldn't...