I believe those are transformers and if i can remember my power classes correctly there is a ratio between wire rotations so i would think these being backwards would cause the board not to work. I couldn't find the datasheet so i can't be sure.
Manual
Mine
This is my 2nd M4 from MP3Car's Store. It does not work. bxsteez worked with me tonight and after looking at the manual and comparing the picture in the manual to the M4, we found something odd. 3 Odd things, backwards things. Googling, and searching the forums resulted in EVERY other M4 we found looking identical to the manual, and opposite mine. And mine does NOT work.
Manual/store image on left, mine on right. Notice the parts labeled TMP T7705 are facing the OPPOSITE way, all 3 of those black ones are.
1) Does your M4 work?
2) Does your M4 look like the manual or mine?
3) When and where did you purchase your M4?
4) Was there a revision and the manual not updated to reflect new picture?
5) Where is the datasheet for the M4?
I believe those are transformers and if i can remember my power classes correctly there is a ratio between wire rotations so i would think these being backwards would cause the board not to work. I couldn't find the datasheet so i can't be sure.
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Personally, I would buy from Mini-Box or better yet, Mo-Co-So rather than the MP3Car store. Nothing against the MP3Car customer service, just I believe they have a bad batch of these. MCS I believe quality tests their items before they ship 'em out, and Mini-Box is the manufacturer so I would assume they'd have the "best" ones available...?
I'm just upset because I paid 2nd day air on this one, so right now I'm sitting out $14 + $7 return shipping, so $21. If I had purchased an M2 + POL I'd likely have a running CarPC a week ago, and have paid less or the same.
I have nothing against MP3Car either, but my preference has always been LogicSupply and Mo-Co-So..... both have excellent customer service.... LogicSupply offered to RMA my mobo when I had issues, they bent over backwards to help, but I then decided to go str8 to IEI and cut out the middle man, I then needed a receipt and LogicSupply emailed it to me and I was able to send my Mobo for repair. Mo-Co-So answers any questions you have. I have only bought a BT Dongle so far, but I plan to buy more things. D@mn, you got me so scared, maybe I should just spend the extra money and get to OPUS 360's.
HiJackZX1 w/ The Tobiathin Core PC system!
ZOTAC GF9300-G-E
INTEL E8200
4 Gigs
OCZ Vertex 2 SSD
OPUS 320
1 Lilliput, 1 MTSVO-SC K301, 4 VM70 screens, 1 Eonon 19in
Starting Raspberry Pi multizone project.
If I were to buy another M4, I would buy from MCS, and ensure, prior to shipping, they test it on a workbench. I am curious to know if anyone has these same transformers upside down on a working M4. If not, easy way to spot a dead M4![]()
Yea i agree Chris @ Mo-co-so is the most accomidating person on the planet! He will answer ur no matter how late u email him and if they sent u one bad part they will personally test ur item before they send u another one. I've dealt with logic supply but nothing ever went wrong so i don't know. Mp3car.com has always been good to me but i don't think i bought anything from them that would have major issues except the POL regulator but that sucker worked perfectly. I really just like Mo-co-so.
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Why has this become an MP3car Store issue when, if the fact that those components are on the wrong way, it would be down to a manufacturing fault.
And you think you couldn't get the same service from MP3Car store.
In fact when you bring it to their attention tomorrow, I assume you will be RMA'ing it the first business day you can, they will probably check out all their stock of M4's so they will probably be ahead of the competition in knowing that MiniBox are supplying dud M4's.![]()
My M4-ATX -- just received from Logic Supply, and untested, looks like the catalog. As soon as I get it tested, I'll post the results.
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If just enough is really good, then too much ought to be perfect.
2006 Scion xB with in-dash Atom & Lilliput 889GL -- Worklog at http://www.mp3car.com/vbulletin/work...res-links.html
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Yea ur right. I think mp3car would test it too but MCS would do it after the first bad one without even asking. This is Jpinkerton's second m4 from mp3car. Ur still right though this is a manufacturing issue and its a STUPID issue but i've seen it happen at work A WHOLE LOT![]()
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