Re: Toshiba 49L621U
yeah my tv doesn't have a firmware update on Toshibas site anyhow, so its like i thought if i have a issue with firmware i would need to flash it via a eprom flasher or rs232, and thats if i could get the file, don't think it is just looking at my options
hoodyracoon
New Member
Last Activity: 04-27-2018, 04:34 PM
Joined: 04-24-2018
Location: Florida
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Re: Toshiba 49L621U
didn't see the mention of them seeing the logo, yeah i don't, still think mine is a led issue but get got a multimeter so i can check the led voltages, so ill see, hope its not a eprom issue for me since i don't have a way to flash it unless it has a rs232 header/set of padsLeave a comment:
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Re: Toshiba 49L621U
either way if its not the LEDs the psu is still only 30$ and ive basically ruled out tcon because the issue persists when i unplug it(and it wouldn't flash the backlight if it was tcon), it doesn't seem likely to tpbe the main board either, but who knows, like i said im voting bad led shorting out the LED driver leading to over current protectionLeave a comment:
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Re: Toshiba 49L621U
by fraction i mean fraction of a second, probably less then a 5th of a second, definitely not slow enough to verify without a video going frame by frameLeave a comment:
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Re: Toshiba 49L621U
interesting thread, i have a 1080p version of the same tv that has the exact same issue, same psu board. i believe it to be a shorted led leading to over current protection based on the fact the middle of the screen is slightly dimmer then the outside in the fraction of a second that the backlight runs, i tested this by taking a video of me pluging the tv in and recording the flash on screen, could be the same issue, if so the led strips like 20$ on ebayLeave a comment:
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