Re: Vizio E470VL - turned itself off, now orange light only
Just to update this, I bought a main board off eBay for $60. The cap looks the same as mine so I don't think mine is bulged. The new board worked perfect. So I'm just gonna toss this one. Not worth it
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Vizio E470VL - turned itself off, now orange light only
Hello all.
I have had a Vizio E470VL since new. It is hooked up to my cable box via HDMI and my audio system via the RCA audio output jacks.
Last week I was home from work eating lunch and watching TV when suddenly there was a loud audio screech through my speakers. I looked up just in time to see my normal picture turn white with a bunch of horizontal colored lines and the audio screech change in tone.
Only a second or two after that, the TV turned off to the orange logo and now will not turn back on with the power button or remote. I have pulled the...
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
Just to finish off this thread, I ended up just buying a whole Shuttle SG33G5 computer off eBay for $50. Components and all. It's the same "newer" model as my "daily driver" Shuttle XPC I built years ago, which has a motherboard they marketed as having an "all solid capacitors motherboard design". Not sure what that means, but all the caps on the board are those all-metal-can caps. Knock on wood...mine has been running flawlessly for 10 years.
So I swapped that newer board, Core2 CPU,...
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
So, I replaced the two mosfets that were in question. There was some separation of the board under the fet that got really hot. I re-epoxied the top layer back down and it seemed like there was no affect on the traces. Everything seemed ok.
So when I first powered it up, I got the XPC splash screen, then the no keyboard error before the computer turned off. Now it just power pulses it seems. The motherboard LED blinks on and off and you hear the fans speed up and slow down.
So, I have no idea what...Last edited by racer2086; 05-06-2018, 10:12 AM.
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
The FETs I ordered came in a 10 pack, so I can definitely just give it a shot. I don't want to damage anything else though, but it seems like just the FET will blow.
I do have a hot air station, so I could replace that piece. I'll look up the part number to see how easy it is to get.
Thanks for the help so far, everyone!
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
Yes I looked up the datasheet for it. My pin labels match the datasheet. Pins 1, 2, 3 left to right. Pin 1 = gate, pin 2 = drain (which is just a stub going to no where on these, but is continuous with the large pin 4 drain on the datasheet), pin 3 = source.
So it seems for Q53, pin 2-3 (source to drain) is at 1.8 ohms or practically continuous. For Q54 pins 1-3 (gate to source) is at 3.6 ohms, which seems to indicate a short between the gate and source, no?
I'm not exactly sure how to tell which is...Last edited by racer2086; 04-04-2018, 08:16 PM.
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
So, I tested the MOSFETs according to this post on this forum: [URL="https://www.badcaps.net/forum/showpost.php?p=203724&postcount=19"]https://www.badcaps.net/forum/showpost.php?p=203724&postcount=19[/URL]
Q53, the one with solder under it, measured the following:
Pin 1-2 = 16.2 ohms
Pin 1-3 = 14.6 ohms
Pin 2-3 = 1.8 ohms
Q54 next to it:
Pin 1-2 = 27.5 ohms
Pin 1-3 = 3.6 ohms
Pin 2-3 = 24.9 ohms
According to the MOSFET...Last edited by racer2086; 04-04-2018, 06:53 PM.
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
Ok here are 3 pictures progressively more zoomed in to give you an idea where this is on the board. In the first, I circled the area. The second picture has the arrow to the cap that was originally bulged and the chip that is very hot. Third is circling something coming from under the chip that just doesn't look right. It looks almost metallic with a flashlight like solder, but not sure how that would be.
BTW, the cap next to the chip there is intentionally angled, since the Nichicon caps were slightly wider...
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Re: Shuttle SD36G5M - Mobo died, recapped, still issues
I think its the VRM section. I'll upload a pic shortly. Motherboard is FD36 v1.1
Lol yeah loading windows isn't "intensive" but it's more than idle, which it seemed fine doing. For the most part he computer boots and will load Windows, so I'm hoping that means most things are fine and there is just some small part still burned out.
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Shuttle SD36G5M - Mobo died, recapped, still issues
Hi everyone,
New to the forum. Great wealth of knowledge on here, wow! I'm hoping some of you can help me out. This is gonna be long as I throw out my back story here.
I have an older Shuttle XPC SD36G5M that I bought off ebay for cheap a couple years ago. I use it as a home theater computer and has been running fine until 2 weeks ago. It went to sleep and never woke up again. Pushing the power button would get the fans to jerk and that was it.
I bought a new power supply figuring that was the problem, but had the same results. That's when my internet searching...Last edited by racer2086; 04-03-2018, 08:03 PM.
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Re: New Members - please post your introductions here
Hi
My name is Ed. I found this place after my Shuttle computer wouldn't turn on. Turns out that's not too uncommon.
I love working on electrical stuff. I've dabbled in vintage audio equipment and have become an "intermediate" at soldering, I'd say.
Anyway, this is my first component-level work on a computer. This place seems like a great wealth of knowledge!
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