#Visteon Dockable Entertainment Center: Dead Backlight

1 messages · Page 1 of 1 (latest)

upper sequoia
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I got a Visteon, which is cool, but the backlight for the screen (A102VW01 V4) is unfortunately dead. I'm not currently sure if it is due to the CCFL bulb, the inverter, or some other issue. The screen does work properly currently beyond having no backlight. However, given that LED-based backlights are pretty much universally considered better...I'd much rather go for that if possible. Would anyone have any clue whatsoever on if there is a LED-lit version of the panel, and where to source it if so?

ornate vectorBOT
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Please remember to provide as much information as possible including all troubleshooting steps you have already taken. If this is a hardware issue, please provide clear in-focus images of the issue, PCB (circuit board), installation, and any soldering you have done. Help us help you, posts with insufficient information will be deleted

dapper galleon
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a year or so ago there was some homework being done about replacing those panels. it didnt get far enough along. good info got drowned out by terrible suggestions so the work stalled.

upper sequoia
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Ah, thats disappointing.

The closest potential replacement ive found is the Innolux AT102TN03 V.9, but it doesnt seem to be a completely perfect match based on the datasheets ive studied.

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I also dont know enough about how TN panels work to be fully confident on tolerances or slight differences.

sudden shard
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Iirc there is a slightly different variant of that screen that does have LED strings instead of a CCFL , I will have to check my downloads when I researched this ages ago. I do remember the screen used the same CCFL lamp connector for the LED backight, which is very poor design as the LED string is probably 20v or so compared to 800v AC...

upper sequoia
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Since the original panel is also fairly easy to still buy, im also just considering trying to full DIY it and carefully remove the CFL bulbs and put in the LEDs myself

sudden shard
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That model may have been it. The older LCD uses an external resistor ladder to generate all the bias voltages for the screen. The later LED revision panel did not seem to require these voltages, probably because it generated them internally. If that is the only difference it should still be drop in

upper sequoia
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Well that could be reassuring. If you can find your notes, that would be greatly appreciated.

Ultimately my end goal once I have it fully working is to then move to building a controller, which ought to be fairly straightforward.

upper sequoia
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Welp, its been a while but after doing a TON of research, I revived it!