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Magnavox 42mf437b/37 chirping - Philips Televison & Video

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

budmrtn
  • 11361 Answers

SOURCE: Magnavox 42MF437B 42-Inch 1080p LCD

First place to look will be the power supply module, look for bad caps, check the output DC voltages, it will be an in-depth troubleshooting to narrow down the problem.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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http://en.wikipedia.org/wiki/Capacitor_plague

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Posted on Aug 12, 2010

taran_2005
  • 10515 Answers

SOURCE: we have a magnavox flat

Hi,

Well friend chirps come from the primary side of the power supply normally you may have had a serge of some kind and it blew the power supply. or chirps also come from the inverter board, this when coils short out this is the best i can say because i am not there to test it but one thing for sure the unit is worth fixing because either board cost around 150.00.

With your problem check the 24v line make sure power supply is supplying the inverter if it is rule out inverter then listen to pin point the noise. i would use cold spray on the components to find the problem.You may not need it if you open the set and listen to the chirp. But if you can't pinpoint it the spray changes the temperature to the failing part and once the spray hits it, it should alter the chirp. you should not have any problems because you can hear your problem, it's either your power supply board or inverter. just open set listen and pinpoint problem that's, simple.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Apr 13, 2011

  • 879 Answers

SOURCE: how to check the E.H.T on magnavox 42MF521D/37

EHT transformer cannot be checked by normal ohimic method. Defect to this component can only be pointed out by experience. Check this site, I've recently came across by internet. It is vary helpful to know details about such faults. 'Electro-help' is the site name, and you can acces it by type in this site name to your Google search box. It is a do it yoursef, electronic equipments service help site. Try it.

Posted on Jun 14, 2012

gopakumarg43
  • 73619 Answers

SOURCE: 42MF437B/37 magnavox tv no power making buzzing sound

It sounds that there is some shorted component/s one either main power regulator board, or at the main digital board. Your TV need a through checkup.

Posted on Sep 11, 2012

gopakumarg43
  • 73619 Answers

SOURCE: 42MF437B/37 no power making a buzzing sound

Contact any experienced service technician or at the authorized service center for Maganavox.

Posted on Sep 11, 2012

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1 Answer

42MF437B/37 magnavox tv no power making buzzing sound


It sounds that there is some shorted component/s one either main power regulator board, or at the main digital board. Your TV need a through checkup.

Sep 11, 2012 | Philips Magnavox 42MF521D/37 Television

1 Answer

42MF437B/37 no power making a buzzing sound


Contact any experienced service technician or at the authorized service center for Maganavox.

Sep 11, 2012 | Toymax Magnavox 42MF437B 42 in. LCD TV

1 Answer

Hi we have a 720 Magnavox flat screen tv that is about 5 years old. When i went to turn it on the other day the picture started flasing and making a chirp noise.. and won't fully


power supply problems does it have a separete power supply if so you can try to change or if you have someone with the same you can ask to try it.if its internal power supply it needs to be fixed.

Aug 20, 2012 | Magnavox 37MF437B37 37 in TV

1 Answer

My Magnavox tv will not come on. I hear what sounds like a small bird chirping inside the tv but nothing else. It started a few weeks ago taking a long time to come on. Once we unpluged it and left


The TV has developed defects in the board such as leaky/dry capacitors, dry solders etc. Kindly look for a qualified service technician around your area.

Jul 25, 2012 | Philips Magnavox 42MF521D/37 Television

1 Answer

How to check the E.H.T on magnavox 42MF521D/37


EHT transformer cannot be checked by normal ohimic method. Defect to this component can only be pointed out by experience. Check this site, I've recently came across by internet. It is vary helpful to know details about such faults. 'Electro-help' is the site name, and you can acces it by type in this site name to your Google search box. It is a do it yoursef, electronic equipments service help site. Try it.

Jun 14, 2012 | Philips Magnavox 42MF521D/37 Television

1 Answer

We have a magnavox 42 inch flat screen and when we turned it on there is no picture or sound. All we hear is a chirping sound. Any ideas?


solution A
Step 1:Check your E.H.T.(Extra High Tention)
Step 2:Check your youke koil
Step 3: Check your video I.C.
solutionB
Step 1 :At fast check your speaker.
Step 2 :
Test the ON/OFF volume switch.
Step 3 :Test audio IC for pcb.

Jul 16, 2011 | Philips Magnavox 42MF521D/37 Television

1 Answer

Magnavox 42 LCD 42mf438b/f7 turns on/off by itself sometimes screen goes blank tv unresponsive to remote


I have exactly the same problem with a Magnavox LCD 42", very similar model 42MF437B/37. I don't have a solution. If you unplug the TV and plug it back it starts working, sometimes for hours, sometimes for less than 5 minutes, before it turns off again. Does anyone have any real solution?

Jul 08, 2009 | SNK Magnavox 42MF438B/27 42 in. LCD TV

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