Re: Vizio E470i no power
ok I'll get those pics up. I did look for Bulging Capacitors of which there were none.
ok I'll get those pics up. I did look for Bulging Capacitors of which there were none.
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Re: Vizio E470i no power
ok i uploaded the pictures.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: Vizio E470i no power
https://www.badcaps.net/forum/attach...8&d=1518374864
Mount the board back in place using all the screws, then check the DC Voltage on pin 1 (5.1V SB) of the connector CN201 with ref. to the chassis GND.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Vizio E470i no power
ok. i think i did it, i also included a picture of my multimeter settings and amount.
Got 5.23 v.
, so i guess I got standby power.Attached Filesif you find these attachements useful please consider making a small donation to the site
Last edited by lfhlaw; 02-11-2018, 03:32 PM.Comment
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Re: Vizio E470i no power
So with all the boards connected you do have 5VSTBY for the main board to run but you are not even getting any indicator lights to come on, so you need to troubleshoot the main board next. This is smart TV so try disconnecting WIFI card if it has one.Last edited by budm; 02-11-2018, 08:33 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Vizio E470i no power
ok. I did check to see if the power made it through the cable to the main board and it does. I think the wi-fi card must be the plug in the lower left hand corner, because the other black/white wires went to the power button on the side, and I'm guessing the remote sensor. The one midway up on the left went to the speakers.
I unplugged the wi-fi and still no indicator light whatsoever. So i'm guess the Main board is bad? thinking it's one of the main CPU chips possibly that go bad.
I've included pics of the main board.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: Vizio E470i no power
finally figured out that the main board is functioning but the LED lights are not functioning. I can do the flashlight test and see images.
I have an LED light tester and all the led lights do light up using that. So do I need to replace the little board that ...umm..i guess transfers power to the led light?Last edited by lfhlaw; 02-15-2018, 10:04 PM.Comment
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Re: Vizio E470i no power
https://www.badcaps.net/forum/attach...9&d=1518374864
You need to report the Voltage readings on the connector CN201 of the power supply board that goes to the main board next. As you can see, there are labels for each pin of that connector so you MUST put down the pin name and follow by the Voltage reading for each pin.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Vizio E470i no power
Not aware of the color codes? Look up and print out, you will need these all the durned time.
I am working on the SAME TV and about 1/2 the backlight diodes were fried.
I am awaiting replacement strips right now in mail.
Glad I learned the reset technique.Comment
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Re: Vizio E470i no power
post too oldComment
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I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
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