Re: Samsung UE48H6270SSXZG black screen after Smart TV logo
I think I figured out why there is no sound. The mainboard comes out of the 75" model and I realized they have a different power supply.
I compared both mainboards and there are some differences between the two. The 75" one has SMD components fitted near the power connector which are not present on the 48" one. All of these are marked with a _75 on the silkscreen which likely stands for 75" model.
The smaller PSU has those pins marked as not connected, they likely are connected...
Schule04
Member
Last Activity: 07-13-2024, 01:07 PM
Joined: 11-07-2014
Location: Frankfurt
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Re: Samsung UE48H6270SSXZG black screen after Smart TV logo
Pairing what exactly? I doubt it, the speaker wires directly attach to the mainboard.
The speakers are marked as bn96-30334a
Here are some pics of the "new" mainboard...Leave a comment:
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Re: Samsung UE48H6270SSXZG black screen after Smart TV logo
OK, fixed EDID with this guide: [url]https://www.avsforum.com/threads/how-does-edid-sub-menu-in-samsung-tv-service-menu-work.1748778/[/url]
Nothing else seems to have changed thoughRe: Samsung UE48H6270SSXZG black scr...changed thoughRe: Samsung UE48H6270SSXZG black screen after Smart TV logoLeave a comment:
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Re: Samsung UE48H6270SSXZG black screen after Smart TV logo
Yeah they do work, tried them with a PS3 and a laptop. Is this related to the other issues? I read that apparently the EDID can be reprogrammed from the service menu, should I try that?Leave a comment:
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Re: Samsung UE48H6270SSXZG black screen after Smart TV logo
Replaced the mainboard with the one from a UE75H6470SS and it works, for the most part. The TV booted right up.
There's a faint blue/violet spot in the middle of the screen so some LEDs there are bad I guess?
The sound output seems to be broken, there is nothing coming out of the speakers. The headphone out on the mainboard works though. Seems like this board is a bit defective.
I changed the panel and TV type in the service menu to the correct model but nothing obvious chan...Leave a comment:
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Re: Samsung UE48H6270SSXZG black screen after Smart TV logo
I do have an SPI programmer but nothing to read the main eMMC NAND.
I noticed that the full model name of the mainboard is BN41-02156A BN94-07385J. Do you think a BN94-07385 from a UE75H6470SS would work in this TV? Seems like it uses the same firmware but the panel is obviously not the same size.
The panel in my TV is a CY-GH048CSLV1HLeave a comment:
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Samsung UE48H6270SSXZG black screen after Smart TV logo
Samsung UE48H6270SSXZG
Power supply is BN44-00709A
Mainboard is BN94-07385J
Got this TV from Ewaste.
[B]Symptoms[/B]
The power LED comes on when plugged in. After pressing the power button the backlight lights up and stays lit. The Samsung Smart TV logo fades in and out. After that the display stays black and doesn't react to buttons on the TV or remote. TCON board has 3 blue LEDs which are lit. A small part of the backlight seems to flicker when the TV is powered up. TV shuts off after some minutes.
[B]Attempted troubleshooting[/B]... -
Re: New Members - please post your introductions here
Hi, i registered a long time ago to view attachments but didn't post anything yet. Thanks for all the resources on the site, you've helped me multiple times.Leave a comment:
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