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Re: Vizio E500i-B1
Dear jhrsmail: You woke up early today............Don't forget your promise.......................
jhrsmail: " Haha..( ) to u if this fixes this stupid tv!!! " ...............post #39Last edited by capwizard; 02-01-2017, 10:35 AM.Comment
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Re: Vizio E500i-B1
If the supply voltage to the chip is too low, it may have to work harder to do its job and keep the output voltage up. In this case the IC may fail soon again. In fact, that might be the reason why it failed already.
You should definitely investigate why the voltage supply is low. It may be a capacitor somewhere in the associated circuitry for that IC which has lost capacity or gone high ESR."Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
-David VanHornComment
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Re: Vizio E500i-B1
"I still have 15.3 on the 24v legs" is that the 16v? Do you have a wrong voltage measurement?
The STBY PS (5v) uses IC9301 (STR A6069H), the power supply uses IC9101 (LCS703LG) generates 24v to motherboard which bucked to 16v to drive 16 strips, each has 6 LEDs, total 96 LEDs.Attached FilesLast edited by capwizard; 02-01-2017, 06:06 PM.Comment
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Re: Vizio E500i-B1
As of now it's working. When i get a chance I'll take it apart again...Comment
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Re: Vizio E500i-B1
If TV works and picture is good, you do not need to do that it might damage the TV. JUST Enjoy It!Last edited by capwizard; 02-01-2017, 08:15 PM.Comment
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Re: Vizio E500i-B1
Will do, thx Wizard! Seems IC9301 has fixed it. 2 days, no failure..
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Re: Vizio E500i-B1
If it has 5v but wouldn't turn on the problem is the Ic9101 If it has 24v but wouldn't turn on the problem is in the screens LEDs.Last edited by capwizard; 02-02-2017, 03:36 PM.Comment
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Re: Vizio E500i-B1
Hey CAPWIZARD.. basically , it's doing what it's always done.. it will power up if unplugged for a while. I think ic9301 fixed it for a while, but finally ic9301 went bad again. I think I need to fix why 24v leg is only at 15.3v.. any ideas?? 😁Comment
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Re: Vizio E500i-B1
If the main board is that one that has the LED driver on it, I'd be looking at it. There was a thread around here somewhere on a Vizio having that only 15V on the 24V rail, no back light problem.Comment
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Re: Vizio E500i-B1
Update; The TV has been working for 2 months so far so good.
Actualizar; La televisión ha estado trabajando durante 2 meses hasta ahora tan bueno.Comment
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Re: Vizio E500i-B1
What all did u do to it? Just ic9301?Comment
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Re: Vizio E500i-B1
Sometimes it happens, sometimes it doesn't. Finally, I did fix it by first change IC9301 then IC9101. Estoy muy feliz ahora.......
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Re: Vizio E500i-B1
Hey Looking for a little bit of help. I am working on fixing my PCB. I have identified my problem as the IC 9301, but there are a couple of resistors near this IC on the back of the board that also fried. They are the two resistors that are tied to pin 1 of IC9301. Unfortunately I haven't been able to find a schematic or even a picture of the back of the board that would show me what value of resistor i need to get to repair it. Does Someone have this info?Comment
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Re: Vizio E500i-B1
Hi guys, I also need values of the resistor at pin 1 of ic9301 (R9311) please help.Comment
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Re: Vizio E500i-B1
Also looking for resistors for R9311 and R9312 on my ADTVD3613XA7 board for Vizio m502i-b1. They measure around 48ohms as is right now. A trace to IC9301 also blew up as you can see.Attached FilesComment
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Re: Vizio E500i-B1
They both look like 1R2 ohms
Courtesy of ShopjimmyAttached FilesWilling to help but I'm no expert.Comment
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Re: Vizio E500i-B1
Oops, disregard.Last edited by budm; 06-30-2018, 01:46 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 E500i-B1
does anybody have a full set of schematics for this unit. i have replaced some parts and still no 5v or 24 v
Vizio E500i-B1Comment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
vizio e650i-a2 (LWJAOZBP Serial) led backlight flashes then turns off, has video (via flashlight) and audio.
panel: au optronics T650HVN05.4
72 led total on 12 strips, 6 led per strip wired in three groups of 24 (led driver board has three anode and three cathode pins)
link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1
Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
https://www.shopjimmy.com/vizio-56-0...-power-supply/
Vizio 55.75J01.001G (91.75J10.004G) Main Board... -
Hi.
picked up another TV. This time is a Vizio M65-C1. TV does not turn on. I had repaired another 60 inch vizio , Bad main board.
When power button is pressed, the Power led indicator on the bottom right, turns for a few seconds and then it fades away. No backlight or Vizio logo on screen. Removed back cover and repeated test.
This is the TV This TV is a little different from the Samsung I have worked on. Power supply is on the Left side, Main Bd is on the right side, T-CON , not in the picture is on the bottom. I am assuming that the boards in the middle are the LED... -
About 2 times a year, a customer will do this. We fix the tv, put it on test play, and customer sees it working. They see me pull power and video wire. Sometimes I pick up tv, right in front of them, and carry it out to their vehicle while they are next to me. I set it in their tv gently, and tell them the tv is very fragile, be careful with it. I let them close the door/trunk. That day, or a few days later, they tell me there is a crack inside the tv. Normally I tell them transportation is their responsibility and normally that is the end of it. Has anyone had a customer that was not buying this... -
Failure Symptom
No picture, just red vertical stripes. Google search shows quite common problem for these recent Vizio M series although red vertical stripe pattern may differ. Some call it "Netflix" boot screen haha.
Where is the short?
Panel has 4x buffer boards. Quickly found the 1/4 panel buffer board with the problem by selectively disconnecting buffer board flex cables.
Having recently fixed another Vizio with similar symptoms that was a shorted ESD diode array ( link ) Probed the ESD diode array but...
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