Question about Akai LCT3201TD 32 in. LCD Television

1 Answer

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

Tv shuts off when you turn it on again it will play a couple minutes and shut off again . dvd stoped working about two months ago. This week a note comes on the screen that your battery is low. We put new batteries in the controls. Now the tv will not stay on

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 13 Answers

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.

Posted on Sep 21, 2009

  • Ryan Dulan Oct 31, 2013

    i have the same power board but a different problem as soon as i plug in the tv it just turns to a green light with no picture or sound and no reaction to nothing i get 5 volts out of the 5v line to the control board but no power to 5vsb to the control board the power board model is mlt198l i've replaced two bulged capacitors and all the diodes the two bloan caps were at EC9 and EC8. i also checked both fuses and they are fine too. my e-mail is toxicrebel87@gmail.com can someone e-mail me if they know what i should do from here please

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

When I turn the TV on it stays on for a couple of seconds to a couple of minutes then shut of and will not turn on again for a couple of minutes.


there is a short or old heat sink in the television I recommed takin it to a licensed television repair service

Jul 01, 2010 | RCA HD52W58 52" TV

2 Answers

Sony WEGA KV30HS420 shuts itself off


Sony KV-30HS420 TV shuts off, indicator light blinks 7 times

Sep 23, 2009 | Sony FD Trinitron WEGA KV-30HS420 30" TV

1 Answer

TV shuts itself off after a couple minutes of being on.


One must be very careful of the quality of the replacement lamp. Many of the cheap 'deals' on the web for replacement lamps are substandard. I always recommend that replacement bulbs be the original manufacturers bulb.

Apr 30, 2009 | Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

TV shuts down and blinks red 6 times


Lamp or Fan is going bad.Take lamp out see if it looks good if so listen/watch to see if Fan keeps runningwhen turned on if Fan stops running ,Lamp and power will not come on.!

Nov 13, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Hitachi 46 in. projection tv - no power


Off the cuff it's about time for a new Tv... But give me the model number and I'll try my best.
Bill

Apr 20, 2008 | Televison & Video

1 Answer

T V Shuts off by itself, after a couple of minutes.


Hi there,
here is some tips for ur TV which blinks 4 time.
1 Probable
Cause
Location


Solution • +13V is not supplied.
(A Board)
• IC503 voltage list is faulty.
(A Board)

Detected
Symptoms


• Has entered standby state
Solution after horizontal raster.
•Vertical deflection pulse is
stopped.
•Power line is shorted or power
supply is stopped.


this info must remady ur problem.

Dec 03, 2007 | Sony KV-36XBR400 36" TV

1 Answer

Shutting off and on...


the problem may be due to dry soldering in the power supply stage if it was with the lamp there would be red or green light showing the presence of the power to the tv after making it own some of the components get hot and it will make the the soldering point conectionless and after some time the heat sink get cooled and the soldering point gets connected and u will see the picture again it is a simple problem if u have a soldering iron u make it hot and re solder all the components in the first part of the circuit board and the problem if rectified

Jul 03, 2007 | LG RU52SZ30 52" Television

Not finding what you are looking for?
Akai LCT3201TD 32 in. LCD Television Logo

689 people viewed this question

Ask a Question

Usually answered in minutes!

Top Akai Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2326 Answers

The Knight
The Knight

Level 3 Expert

74666 Answers

yadayada
yadayada

Level 3 Expert

77202 Answers

Are you an Akai Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...