Question about Akai LCT3701AD 37 in. LCD Television

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I need Power Supply MLT 386x - Do you have any? How much?

I need Power Supply MLT 386x - Do you have any? How much?

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Hi
Please go to ebay and buy your power supply board:
AKAI LCT3701AD POWER SUPPLY BOARD MLT386X

Posted on Dec 30, 2008

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If you mean a firmware update to the MLTD3222, there is no way for a user to update this TV with built-in DVD player. The manufacturer doesn't provide updates and has no way to access them from a DVD, USB flash drive or SD card. (The manual for the related MLTD2622 is available from Memorex support: http://support.memorex.com/app/answers/detail/a_id/939 . )

I wish that I had better news for you.

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If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/

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5v present on stb voltage but no 12v & 24v & 5v of system on power supply MLT 070a PLS HELP


Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
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Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit

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Proplem power psu board mlt 668


More information is required please.

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Mlt 3221 picture wont come on but there is sound


This might be you back light not fire-ing now this can be caused by 3 things

1. power supply
2. back light itself
3. back light inverters

I welcome you to get it checked out. Remember we aren ot there prsent so it would be hard to make a 100 percent dead on answer.

Please be considerate remember to leave a postive rating and or feedback, Thanks

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2 Answers

Power Supply


I fixed my Akai LCT3201AD in about 30mins. using 3 small parts from Radio Shack. Once I got the back off, I found the power supply board (PSB), mine was part# MLT-169B rev1.2. I looked at the capacitors (caps.) first, because they are usually easy to diagnose. I noticed the caps. bubbled out on the top of the board (where all the cables connect to it). There is 3 of them in a row, positioned between the two large heatsinks. My guess is that the heatsinks are generating a LOT of heat over time, because of bad ventilation, and causing the caps. to fail.
I went to Radio Shack and found 3 caps. (only had 3 in stock). The original ones were 16V-1000uF, Radio Shack only carried 35V and 50V in the 1000uF caps., so I bought the 35V ones and headed home, I removed the old caps. from the board, and installed the new ones. The 35V caps, are a little bigger, so its a tighter fit on the board, be careful. It took longer to remove the back from the TV than it did to do the soldering. YouTube.com has excellent videos on how to de-solder caps. on PSB's.

Total money spent on repairs:
$1.59 ea for 3 Caps. (part# 272-1032) $4.77
$2.99 for new soldering iron tip + $2.99
$1.00 donation for St. Jude's + $1.00
Total including tax $9.30


So for less than $10, I did a repair that my local TV repair shop wanted $575 for. Online stores want anywhere from $100-$275 for a PSB. If I get another 2 yrs out of it that's well worth $10.

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I had a power supply issue with my TV too. I was able to repair it. But, during my research I cam across a store which does sale the power supply. The cost is $150 and can be purchase at fox international. Though it it is not listed on the online e-store, you can call and give them your TV model and let them know you are looking for a power supply board The web site is www.fox-international.com. Then click on the e-store link or call
1-800-321-6993.

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