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Im not getting any power or lights in magnavox 37mf33 hd tv it just shut off and wont turn on

Replaced two visible bad caps, still no green light, nothing....its working fine and just shut down.which makes me think ts more than caps.

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  • Televison & ... Master
  • 9,771 Answers

Look at the repair kits at www.shopjimmy.com. They may be able to help.

Posted on Jan 09, 2014

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 63 Answers

SOURCE: I can't get my tv to turn on... nothing but blinking red light

Thats nots it its bad caps.....

need to replace 3300uf 10V with 3300uf 16v or higher. A couple of bucks in parts and some soldering.

Fixed both of my 50" sets

Posted on Feb 16, 2009

javswr
  • 44 Answers

SOURCE: No Picture & No sound. Red LED, Green LED, Red LED.

If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

Posted on Feb 28, 2009

  • 1 Answer

SOURCE: magnavox 32mf23id/37 wont tun on

Had the same issue, I replaced two 1200uf caps on the power supply board and now it works fine again. Remember to replace the caps with caps rated for at least 35wvdc.

Posted on Mar 27, 2009

dsacco86
  • 1077 Answers

SOURCE: have a 30" SHARP Aquos LC30HV2U that has a bad power supply. Nothing happens when I turn on the LCD - though it is getting power confirmed by green light going on but nothing on LCD. Visual inspection

You did try the CLEAR button on front of the box?
One possible idea is the cables going the box to the TV. ( might be bad )

If your sure about the problem, you can get your Service Manual here:
http://www.nodevice.com/manual/newmans/upsharp/LC30HV2UPDF/get53718.html

This with have all the schematic, diagrams, part number, and test points you need.

Posted on May 17, 2009

  • 2318 Answers

SOURCE: im not sure if the power supply is bad or not... I

It appears like the 5VDC is low from the power supply adapter. This voltage becomes low due to defective capacitors inside the power supply.
Check the link below for more info.
http://www.fixya.com/support/t2345170-need_power_supply_model_ad_13d_2_ultra

Posted on Dec 04, 2009

Testimonial: "Thanks for the info....lots of help"

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I have a magnavox 42"


Problem could be in the Main unit Board, check out www shopjimmy.com

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Magnavox plasma television will not turn on, makes


Relays clicking noise you hear.....change caps..you might see visible signs of CAPs being bad....swolen,,, top ready to explode etc.

May 19, 2010 | SNK Magnavox 42MF231D 42 in. Plasma TV

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Tv works fine until you turn it off, when you turn it back on the green light shuts off and the tv totally dies, the red light thats on when its turned off is not working either. Now if you unplug it for...


check all caps in the power supply especially the 10mf 22vols cap.the caps are not filtering the voltage properly when the the current i off the caps drain the voltage and does not keep charging.until when current is applied to the set.good luck.

Feb 21, 2010 | Philips Magnavox 27MS343S 27" TV

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When you turn on the tv the green power light flashes and so does the tv screen


I had the same problem, it was fixed under an extended warrantee, caps on the power supply were bad, number 2074, they replaced it and another one on the same board.
Tv has been back and running fine for 2 months now, if you google Magnavox and blinking green power light you should be able to find a ton of hits on the same subject and many have repaired these tvs by themselves. Good luck, another solution is to order a new power supply, they run abut $150, if you can find one.

Nov 27, 2009 | Philips Magnavox 42MF521D/37 Television

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My magnavox 37MF321D/37 will not turn on. It


I had the same problem with the blinking green light. These are the parts one the power supply I replace to repair it. note: If the power supply is repaired you will get a solid green light and the backlight will light up almost immediately.
5df38cd.jpg

Aug 01, 2009 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

3 Answers

Magnavox 32mf23id/37 wont tun on


Had the same issue, I replaced two 1200uf caps on the power supply board and now it works fine again. Remember to replace the caps with caps rated for at least 35wvdc.

Jan 29, 2009 | Philips 32MF231D Television

1 Answer

No Picture & No sound. Red LED, Green LED, Red LED.


If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

Jan 14, 2009 | Akai LCT2660 26 in. HD-Ready LCD...

1 Answer

AKAI LCT26Z4AD wont power up.


Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

Mar 10, 2017 | Televison & Video

4 Answers

Red blinking light on a Magnavox Plasma TV


Here is the solution. For less that 100$ your Magnavox Plasma TV. Model # 50MF2310/37 will be running like a champ.

Issue:

Magnavox Plasma TV. Model # 50MF2310/37 screen has no picture. There is no sound, TV comes on and then after a few seconds clicks and screen remains blank.

Cause:

On the main power circuit board to Capacitors are prone to failure from over load. The caps are 3300uf 10v 105+c capacitors located to the left of the AC power input.

Service:

Magnavox will refer you to a service center. They will advise $$$ for an inspection. They will also want to charge upwards of 500$ to replace the entire board.

Solution:

1. Unplug your TV
2. Disconnect all connections from your TV
3. With assistance lay your TV on its face on a non-scratching service
4. Remove the back panel screws.
5. Lift back panel off
6. The central board is your main power board.
7. Remove all wire harnesses from the main board.
8. Remove all screws that are holding the main board in place.
9. Lift the main board out and carefully place it into a non electromagnetic pouch.
10. Take the board to a Circuit Board repair shop.
11. Have them replace the the above mentioned Caps.
12. Re-install the board in your TV.

NOTE: Replace the caps with 3300uf 16v 105+ high temp caps(preferrably Japanese caps)

This fix cost me 80$ and my time to search for other who had the same issue. Try searching for Magnavox Plasma TV. Model # 50MF2310/37 bad circuit board or Magnavox Plasma TV bad capacitors or Magnavox Plasma TV bad ciruit board.

Hope this all help, Magnavox is should take ownership for this problem and recall any tv's that have these caps in them. The worst part about this is that teh **** from the repair center that was paid 100$ to check the TV, stripped out the screw holes and damaged the case for the TV.

Portland Laptop Repair was awesome. They repaired the board and it looked like new. Check them out at http://www.laptopportland.com/

Jeff G
Portland, OR

Feb 10, 2008 | Akai PDP4294 42 in. EDTV-Ready Plasma...

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