coby TFTV4028 blue ligth stays on and no power on

hmendez86

Badcaps Veteran

Join Date: Jun 2015

Posts: 344

Country: united states
#1

coby TFTV4028 blue ligth stays on and no power on

05-20-2016, 03:42 PM

i have a coby tv tftv4028 and main board is the problem and i cant find the board any where.....theres three types of boards....the one that i have is 002-FV40-2810-00R with AU Optronics T400HW03 panel.......my question is can i replace it with 002-FV40-2813-00R it has the same panel....

Coby 002-FV40-2813-00R for AU Optronics T400HW03 panel
Coby 002-FV40-2812-00R for Samsung LTZ400HF21-W01 panel
Coby 002-FV40-2810-00R for Samsung LTA400HM02 panel
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PS5 EDM-033 UART 80810001 Beep 1 second Ligth

by Egidio85

Hi everyone, I have a ps5 EDM-033 that beeps, blue light for 1 second and turns off.

reading the error codes via uart gives the following code:

80810001 General power failure (periphery, GDDR6, APU, data line shorted)

checking the card I didn't find any shorts, Boot sequence is quite right 325 mA dropping to 9 mA.

Using the thermal camera I can see the SSD controller and South bridge getting warm.

if I press the power button the RAM also heats up, the processor doesn't seem to. in fact if I go to measure I don't have +1v CORE output....

1 Photo
- Channel: Troubleshooting Game Consoles & Other Weird Devices
04-09-2025, 10:32 AM
coby TFTV4028 blue ligth stays on and won't power on

by hmendez86

Coby Tftv4028 I found a problem to that I change one regulator and it turn on good nothing wrong but the thing is when it's unplug the cord it does the same thing blue light lit but won't power on...I check the regulators and they check good... I know the main is good...theres a problem on the turn on switch and there were am lost.....there mp14280dp can be that the problem...
- Channel: Troubleshooting TVs and Video Sources
04-19-2016, 09:30 PM
coby TFTV4028 blue ligth stays on and won't power on

by hmendez86

I have a coby TFTV4028......I TESTED POWER SUPPLY AND I HAVE 24V AND 4.9V ON STANBY.....ANY SUGGESTIONS WHAT'S THE PROBLEM......I THINK IS THE MAIN BOARD....I SAW SOME PEOPLE FIX IT BY REPLACING MAIN BOARD CAPS???????
- Channel: Troubleshooting TVs and Video Sources
04-12-2016, 01:11 PM
Nintendo 2ds xl blue ligth no image

by hmendez86

I saw some vids and said bad screen on the top, i did try d pad up and power at same time and turns on both screen but in a sec it freezes no movment at all. I turn it off and back on and does same thing blue ligth..so i know screens are good its something else...this nintendo 2ds is not brick or anything...i try disconecting the cameras and does same thing...any suggestions
- Channel: Troubleshooting Game Consoles & Other Weird Devices
01-17-2022, 12:51 PM
Coby ct4rvc1 mb v10

by GSMJOEY

just incase you need tested on me
CT4RVC1_MB_V10
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- Channel: BIOS Requests ONLY!
09-14-2023, 10:49 PM
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coby TFTV4028 blue ligth stays on and no power on

coby TFTV4028 blue ligth stays on and no power on

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