Question about Akai LCT3201AD 32 in. LCD Television

2 Answers

It wont power on

Already i pulled power supply unit out can you service this or where i can get new power supply. power supply is made by megmeet and it is MLT169A

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  • paulred Feb 18, 2008

    Hi jaime867 thanks for your reply. ok i want to fix the power supply how much you will charge for service and give me your mailing address or your phone number. my email address is gungurthir@hotmail.com

  • Anonymous Feb 20, 2008

    MODEL NO. LCT 2701 TD  I HEARD A CLICK AND IT WENT OFF AND NEVER CAME BACK ON. I TRY THE REMOTE AND THE ON AND OFF SWITCH NOTHING IS HAPPENING THE SET IS DEAD NO RESPONSE.


    WHEN I TURN ON THE ON AND OFF SWITCH AND PUT A DVD IN THE SIDE SLOT,THE DVD CAN'T GO IN. I HEAR A GRINDING NOISE WHEN 
    I TRY TO INSERT A DVD.,WHEN THE SWITCH IS ON.  


    COULD YOU RESPOND TO ME IN MY E-MAIL  clarence_37@hotmail.com

  • Anonymous Mar 20, 2008

    Akai lct3201 w/ Megmeet mlt169a power supply. Noise, puff of smoke,

    and smell of burnt electronics. After that no power, no picture.

    Need megmeet mlt 169a power supply replacement.

    jjschneider@adt.com

  • jumpenjoel Mar 20, 2008

    Akai LCT 3201AD Noise, puff of smoke, and smell of burnt electronics.

    I need a Megmeet MLT 169A power supply.

    Jumpen

  • Anonymous May 30, 2008

    no power

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THANKS jaime867 for fixing my tv power supply.

Posted on Apr 08, 2008

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Check this guys out: http://www.shopjimmy.com/
I could fix it for you but I live in Canada.

Posted on Feb 15, 2008

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1 Answer

Hello i need schematic diagram for power supply Model MEGMEET - ML686 . that power supply used for LCD TV .it's bad Brand and nobody care in service center. hope somebody help


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Check the present power supply [SMPS]; and find out the number of switching regulator IC used. Surf the site with that IC number. You will get similar circuit for SMPS there.

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http://www.shopjimmy.com/megmeet-mlt168a-power-supply-unit.htm

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1 Answer

Tv shuts off when you turn it on again it will play a minute


I think this might be bad/swollen capacitors in your power supply, or something odd in the +5VDC circuits of the power supply, but I am posting all of the things I have found so far with these TVs.

Here are few possible solutions:
If you have no red light and you have a Megmeet MLT386 power supply, check these parts:
1) Swollen caps on the PS secondary circuit (may cause the red light blink or shutdown problems).
2) Blown fuse F1 (5A/250V) this is caused by a shorted FET at QA1 (20N60), you may also find that SMT cap CX23 is burned up (.001uf) which is in parallel with diode DA2 which may be damaged/shorted, replace these components.
If the power LED goes from red to green when powered up but no picture, then it might be lost +24VDC from the power supply:
3)Check fuse F2 (3.15A/250V, I put a 5A in), if it is blown, replace FET at QA2A (9N50C), replace QA2 as well (9N50C). Check SMT resistors at R233,R234,R235,R236 (.47 ohm). If open, replace with .1 ohm 1W or 2W resistor (easier to source). Also replace SMT transistor QF1 (2X4 or 2N4401 NPN transistor). And replace diodes at DS2 and DS1 (HER207), DS2 was shorted, DS1 was ok but I replaced it anyway.

I dont know as much about the Megmeet MLT169A, but it has similar problems and similar components.
4) I had to replace all of the capacitors in the secondary circuit (there are six in a 3x3 row marked EC9 (1000uf35V),EC10(1000uf35V),EC14(470uf35V) and EC18,EC19,EC20 (all 1000uf35V).

OK for the Megmeet MLT169A with red flashing LED when turned on we found that IC7 was bad. This is an SMT component on the solder side of the power supply. It is a 4407P (P channel 30V MOSFET). For testing purposes, we jumped across it to feed +5V to the TV permenently instead of allowing +5V to go into standby.

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Need a description and location of or a schematic for Megmeet MLT198K. Optionally a new power supply. I have not been able to get a response from AKAI. This blew EC10 (1000uf/16v) an electrolytic which I...


There are 2 1000uf/16v caps that blow on the board. The second one is under the heat sink nearest the one that is easily seen on the board. You might also have to replace the 220uf/25v caps under the heat sink as well.

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Hi artoo
if you want you can fix the power supply. i know service tech who fixed my tv power supply. His email is jah2mil@hotmail.com.

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The MLT169A is a version number issued by MegaMeet in asia who built the supply. The correct part number for the SMPS for that unit is: E7802-005008 and unfortunately they are no longer available... However, there is some good news, those supplies can usually be rebuilt but you need to have the equipment, knowledge to make the repair...
Bill

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4 Answers

Red light still flashing


you also have to replace the 2 resistor on bottom of the board they are 10 ohms each they are surface mount 1/4 quarter watt each they are next to z3, also have to replace the 3 caps. I have fixed 4 units with the same problem this must be obviously a design issue since many of these tvs have the same problem.
hope this helps

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