Re: Vizio m550sv shutting off after boot up
I have the same model with the same problem. Has anyone found a solution as of yet?
I have the same model with the same problem. Has anyone found a solution as of yet?
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Re: Vizio m550sv shutting off after boot up
I would be checking voltage and caps on mainboard. Marginal or fluctuating voltage somewhereI assume no responsibility for any stupid suggestions I might post.Comment
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Re: Vizio m550sv shutting off after boot up
Deleted comment. I was thinking this was a different board.Last edited by Nick's Tvs; 05-07-2017, 03:50 PM.Comment
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I have the same issue (the exact same issue with my tv) that is the same model - I already bought a replacement TV but the point is - I am looking for the satisfaction of figuring this one out myself. Any extra help would be appreciated. Thank youComment
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I have a PS5 that will turn off after anywhere from about 5 to 30 seconds after power-on. It will sometimes make it to Safe Mode, but won't last long there. The following are steps I have taken:
1 - Tested on multiple sources of 12v power including 2 separate bench power supplies. Doesn't fix the issue, which at least to my mind, rules out the power supply as the problem.
2 - Visual inspection of board. Absolutely no signs whatsoever of burns or failed components.
3- Checked for standby voltages. All seem normal.
4 - Added liquid metal and re-spread... -
Hi, I rescued a Samsung UN40H5003AF (H = 2014 FHD) from the curb. Symptoms are: standby (red) light comes on, stays on for 8 seconds, flickers off, then comes back on, and the cycle continues.
Service manual: https://www.electronica-pt.com/esque...is-u8la-71272/
SMPS board: checked voltages, all seem normal (A13V = 12.8V, UD = 3.3V, PWM_BLU = 0.77V, PS_OnOff = 5.5V). Remove 10p cable to main board -> backlight comes on. I think this means SMPS board and backlight are good.
Main board: BN94-07592P / BN97-08922R... -
I have used the search, and am stumped.
My Vizio M65-C1, Vizio logo appears for about 10 seconds then goes off.Power LED blinks 15 times then the TV powers down.
I have read through many threads on the M65-C1 including the following threads. I feel like I must be looking right past the solution to my problem:
https://www.badcaps.net/forum/showthread.php?t=81088
https://www.badcaps.net/forum/showthread.php?t=84241 (not clear on the Eprom actions)
Observations
1) [Interaction] Power turned on via TV button (or remote)... -
Hello everyone,
I'm facing an issue with a HEG-001 motherboard that is unable to complete the Second-Stage Boot. I'd like to start directly with my conclusion, which is the decision to replace the MAX77621AEWI chip, and understand if it could be a correct evaluation.
Before I dive into the process that led me to this decision, I want to mention that I have a fully equipped lab where I can perform any kind of tests.
Let's begin:
Following some guides online, I tried to understand how the Boot phase of the Nintendo Switch works, and what are the... -
Got this from my kid with a fault on primary side. Main power supply here is AC 220V. All caps were Ok, testing with 2 series lamp of 70W each, got a bright lamp
. Checked main heatsink one by one with my component tester and found one 3 leg buddy MDP18N50 that passed away. Got same replacement after a week, tested, short was gone, now I got 310V on primary.
Happy as a dog, added one case fan for some load and the fan of the PSU. Tested purple wire, got 5.1V, great!. Shorted green and black, fan spins and after about 5 seconds shuts down. I was able to measure doing several iterations...
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