Re: LG 65UH5500 Momentary Flash Of BackLights
Classic symptom of an O/C led in the panel. I did a 47" LG today exactly the same issue.
It only takes 1 to be dead to cause 1 sec to black on these LG's....
Alastair E
Chief Womble
Last Activity: 12-11-2018, 07:01 PM
Joined: 03-24-2013
Location: Swansea, South Wales
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Re: Samsung Plasma PN63C550 Replaced Y-SUS Voltages Good, Then Drop
Buffers or Xsus....Leave a comment:
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Re: Samsung PN50B450B1DXZA Y Sustain repair help needed
It'll be one or more buffer-chips gone.Leave a comment:
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Re: panasonic tc-p50s60 bricked after firmware update?
Why did you originally update the f/w in the first place?
--What faults indicated to you to go to that extreme?
Regardless of what makers say, when updating f/w there's always a possibility of bricking it--no matter what the thing is, let alone TV sets with their multitude of different versions--Of the same set!
Route of last resort in my book, leave f/w alone unless you know for sure its the cause of the problem, and if there IS NO Problem, defo dont do it--don't even think about it!Leave a comment:
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Re: Panasonic TX-P42GW20 display flickering after some time
All inputs affected...?
Menus flicker too?
Sound OK?Leave a comment:
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Re: LG 50PJ550 screen going ?
Nah, not panel--or the replacement parts, You still have a fault on the chassis somewhere--prolly on the Y-SUS....
Check ALL the standoff 0.22 ohm resistors on the Y--One will be O/C....
Leave a comment:
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Re: Panasonic sc boards TC-50GT30 & another Pan 50"
Read this--Leave a comment:
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Re: Lg 42pc1d 42" tv
Y-SUS IPM is S/C and needs replacement, part nos--
YPPD-J018C
New ones are Not available--Never were, all you'll ever find are used ones--no matter what the vendor claims....Leave a comment:
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Re: Hitachi 42hyt42u Turns off after 3sec - Vestal 17IPS71, 17MB95M
Whatever mainboard you get-- It Must be one that drives the same make and model of LCD panel. TV vendor name is immaterial...
Vestel used all sorts of make panels including their own on later ones....Leave a comment:
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Re: Hitachi 42hyt42u Turns off after 3sec - Vestal 17IPS71, 17MB95M
Corrupted f/w, vestels are such utter turds!Leave a comment:
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Re: 70" Sharp display has blinking rectangles
Prob the lcd panel itself--Sharp 70" suffer a fair bit from buggered panels...Leave a comment:
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Re: Bush LCD52786F1080P
If we had crystal balls we could see ourselves coming--which would be 'grate'...
(Some threads are an exercise in mis-use of a spell-checker!)Leave a comment:
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Re: LG 50PS8000 Flickering and intermittent Double Image
Y-SUS board fault.--Defo!
(one of the small buffer-chips on the Y relaying data to the y-buffer board)Leave a comment:
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Re: Samsung LN40B500P3F - BN44-00264A Backlights Flashing
Just bung it direct on full mains. the dim-bulb tester has done its job, time for full beans now!Leave a comment:
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Re: My LG PLasma lower y-Buffer went out again? why
More likely a bad panel if the Same Chip went....Leave a comment:
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Re: Samsung PS-50C96HD, No Floating Supplies...
Aye--If you remember, you sent be a YSUS for it! LOL!Leave a comment:
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Re: 42"Fluid plasma tv Mod#(Samsung)pn50b550t2f
No--The Address-Board is that one that runs along the Bottom Of The Glass of the panel itself,--the full width of screen.
Where the two/three pin lead/plug connects to that, thin bottom board there'll be a small oblong SMD (Surface-Mount) fuse.
--It may be partially covered by the metalwork strip that covers/heatsinks the COF chips along the outer-edge of the Glass PDP panel itself...
No Va to COF chips--for whatever reason, = no image at all.Leave a comment:
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Re: Panasonic TX-P42ST31B 7blinks
I second the cleaning of panel side, and re-tinning of all the mounting-points on any post 2008 Panasonic set and also replace the SN/SS board fixing-set-screws with ones having lock-washers,--take care you don't use ones too long if you're using S/H screws from summit else!
--Once re-tinned, remove as much solder from the pads as possible with braid, leaving the copper just silver-coated. You Do NOT want a thick blob of solder all around that ring/arch, as this over time will 'shrink' and leave the mount loose to arc again.
...Leave a comment:
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Re: 42"Fluid plasma tv Mod#(Samsung)pn50b550t2f
Firstly, Check for correct 60?V Va Voltage on PSU. If OK, then--
Check the SMD Fuse on the Bottom Address board, a tiny white 4A? fuse near the Va plug lead on bottom edge of the panel.
IF its blown, there'll be a S/C SMD 1206? Cap on one of the Va supplies to a COF chip Under that metal strip on bottom edge of panel.
Take Great Care removing and re-installing this metal strip as the chips on the Mylar FPC's are pretty delicate die devices.
If you remove that metal to find the...Leave a comment:
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Re: red verticale lines
If its a really thin line, --It'll be a tab-bond issue or faulty panel/COF chip...Leave a comment:
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