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Re: Vizio E471VLE Dead
Does the relating resistance indicate anything conclusive ? Seems pretty straight forward to me from a logical perspective that it's the main board when standby voltage fluctuates when the board is connected and when disconnected I have consistent and accurate voltages.
I was talking to a buddy of mine last night and he said something to the effect of checking smp low voltage ic or low voltage regulator . Either of these make sense to you experienced individuals ?Comment
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Re: Vizio E471VLE Dead
I have similar issue but I have constant 5.3V Standby. Scratching my head here.Comment
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Re: Vizio E471VLE Dead
Probably bad main board. You would need to load the standby to eliminate power supplyI assume no responsibility for any stupid suggestions I might post.Comment
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Re: Vizio E471VLE Dead
How do you load the standby?Comment
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Re: Vizio E471VLE Dead
Would a bad eeprom cause this ? After researching it seems the e series are prone to eeproms failingComment
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Re: Vizio E471VLE Dead
Do I chalk up no replies as lack of interest in this thread and move on or does anyone have anymore suggestions ?
Thanks againComment
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Hi. Anyone who has experience with these vizio sets, which pin on this connector is the standby, the 5V pin? Trying to rule out the PSU before ordering a mainboard. I'm getting 0 Volts on all pins on this connector. Trying to jump the standby and PS ON pins to see if the PSU is functioning. Thanks in advance. -
Hi everyone,
Im looking for some advice regarding my Samsung UE55MU8000 TV with main board model BN94-11606C. The TV suddenly stopped turning on and now shows no signs of life at all not even the standby light at the bottom.
Initially, I suspected an issue with the PSU, so I took it to a repair center. They tested it and confirmed that the PSU works perfectly, even on other TVs. Based on that, I started investigating the main board.
I disconnected the main board from the PSU, and the backlight turned on, which seems to confirm the main board is the issue.... -
I bought this Vizio E55-C2 yesterday with the complaint of completely dead, will not power on, no initial power light that trails off when plugged in. The complaint is confirmed.
The 120V protection fuse is good. The first thing I checked was main cap voltage, always at 385V. Other voltages found on the power board look like the TV is trying to tell me it's partially on? Here they are:
Main cap…….385v stable
1: 5VSB……….5.05v stable
2: 5VSB……….5.05v stable
3: ACD…………3.3v stable
4: PS_ON…….3.3v stable... -
I suppose the real question is whether the existing pinouts from ether a 17IPS71 psu are cross compatible with a 17IPS12 psu? If they are then the exchange of the main boards should have no issues providing the screen is compatible with both main boards. Obviously you can change the screen configurations easily enough (providing you have the correct files) for the main board. Why may you ask would I do this? Well a lot of the smart features are no longer working on a Hitachi 48HBT62U main board I wish to give it a new lease of life!
Obviously the same LVDS connector for the screen connection... -
Hi and thanks in advance for any input you might provide!
I have a Sceptre U550CV-UMRD8POTV83BB 4K LED (this is a dumb tv) that I bought new in August 2021, so It's just completed 3 years.
Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO
Last Sunday I was watching a dvd and fell asleep for about half hour, when I awoke the tv screen was black and couldn't get the dvd menu to show, so I changed the input to antenna and had sound but no picture, turned it off. I then got online and found this great site! ....read many troubleshooting tips and this...
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