How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Aric Your Own Question

Aric
Aric, Technician
Category: TV
Satisfied Customers: 33757
Experience:  10+ yrs. experience installing and repairing TVs and A/V systems. Owner of A/V installation and repair business.
24739752
Type Your TV Question Here...
Aric is online now
A new question is answered every 9 seconds

philips lcd 52 tv m#52pfl5704d/f7 no picture on screen blacklights

Resolved Question:

philips lcd 52' tv m#52pfl5704d/f7
no picture on screen blacklights seem like they are on screen looks like an light shade of gray in a dark room.
Submitted: 1 year ago.
Category: TV
Expert:  Aric replied 1 year ago.

How long have you had the set for and when did the problem occur?

Additionally, what is connected to the TV for devices (DVD, cable box, etc.), and do you have the same issue regardless of which Device you're watching?


If you press MENU on the TV, does the MENU display normally on the full screen?

Customer: replied 1 year ago.

have had the set of 2-3 years. problem has been going on for 2 weeks


 


have had dvd, cable box, xbox, hooked up to set none show up on screen


 


when you press menu nothing can be seen


 


tv has white power light on bottom right when you turn power on it use to say "philips" on the screen go black for a second then come back up with the channel your watching.


 


now it comes on no "philips" on the screen and screen seems to be a light gray

Expert:  Aric replied 1 year ago.

Thank you for the reply.

Does the set still have Audio?

If you look closely at the screen, shining a flashlight directly against the panel and press MENU, let me know if you see a dimly lit shadowy MENU behind the screen.

Customer: replied 1 year ago.


it did have audio not sure if it still does. i was not able to see menu on the screen useing a flash light . i have the back of the set open as there any test i can do?


 

Expert:  Aric replied 1 year ago.

Thanks for the reply.

Do you have a Multi-Meter and can you safely measure voltages?

Also, do you see any bulged or swollen capacitors on the power supply board inside the TV?

Customer: replied 1 year ago.


i do have a meter that can mesure a/c or d/c will that work? the two big black caps on the power board look good not swollen or fat on top

Expert:  Aric replied 1 year ago.

Yes, you will use your meter and set it to DC Volts.

Use a DVM set to DC volts, find a common ground on the power supply and probe all of the Outputs for voltage (correct voltages will be stamped on the power supply at the outputs). Do this with NOTHING connected to the Power supply but AC power, the Mainboard, and the little board that houses the Power Switch. If a voltage is missing/ fluctuating, then the power board needs to be replaced.

If the power supply outputs its rated voltages, then connect the other boards one at a time until one causes it to shut down. This board would have the short causing the supply to SOS, and would need to be replaced.

A good source to locate replacement boards is http://www.shopjimmy.com/ and http://www.discountmerchant.com/

If you need further assistance let me know.



If not, please do not forget to rate my answer.

Expert:  Aric replied 1 year ago.
Do you require further assistance with this problem?
Customer: replied 1 year ago.


yea

Expert:  Aric replied 1 year ago.
Can you please be more specific?
Customer: replied 1 year ago.


yes i checked power supply board im getting D/c volts on all out puts... main board( the one with the (HDMI and A/V) ports has a green led that lights up when the power botton is pressed. so i'm guess that one is good as well. i have 3 board left all 3 are getting power. two are on the right side of the unit. the last is in the top center. any ideas?

Expert:  Aric replied 1 year ago.
You're welcome, and could you please rate my answer favorably?
Expert:  Aric replied 1 year ago.
I'm sorry for the response I just sent, my computer switched screens and I sent you the wrong reply.
Expert:  Aric replied 1 year ago.

Is there a buzz, or hum coming from the boards on each side of the LCD panel- the Inverter Boards?

Customer: replied 1 year ago.


yes a slight hum is coming from the boards on the side of the tv....i see one of the two is labled "slave" is that inverter boards?

Expert:  Aric replied 1 year ago.
Thanks for the reply. Yes, there are two Inverter Boards in the TV- one is the Master and one is the Slave. What was the voltage reading you got from the Power Supply output to the Master Inverter Board?
Customer: replied 1 year ago.


24v dc on 5 of the pins for that plug

Expert:  Aric replied 1 year ago.

Okay that is normal. You either have a faulty T-Con Board (Timing Control Board), or a failed LCD Panel in the TV. You cannot test the T-Con aside from replacing it, and if the new T-Con does not fix the problem, then the LCD panel has failed and the set would then be considered "unrepairable", as the panel costs as much as a new TV to purchase.....and that is if you can even locate one. Replacing the T-Con is your only alternative at this point, and it can be located for purchase at the link below:

http://www.tvpartsguy.com/servlet/the-5710/PHILIPS-52PFL5704D-fdsh-F7-T-dsh-CON-BOARD/Detail

Sorry, that link shows out of stock.

I would suggest contacting shopjimmy and asking them to notify yo when one of the T-Cons is in stock as they are constantly getting new boards in stock.

http://www.shopjimmy.com/catalogsearch/result/?q=52pfl5704d%2Ff7+

If you need further assistance, let me know.

If not, please do not forget to rate my answer.

 

Aric, Technician
Category: TV
Satisfied Customers: 33757
Experience: 10+ yrs. experience installing and repairing TVs and A/V systems. Owner of A/V installation and repair business.
Aric and 6 other TV Specialists are ready to help you
Expert:  Aric replied 1 year ago.

If you need further assistance, let me know.

If not, please do not forget to rate my answer.


 

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
< Last | Next >
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
  • I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all. Windy USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • TV Tech1

    Technician

    Satisfied Customers:

    4800
    30 Years experience. Authorized Warranty servicer.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TV/TVTech1/2013-3-25_625_TECH1Nobanner.64x64.jpg TV Tech1's Avatar

    TV Tech1

    Technician

    Satisfied Customers:

    4800
    30 Years experience. Authorized Warranty servicer.
  • http://ww2.justanswer.com/uploads/OR/OriginalSeadog/2011-7-22_191917_ProfilePicture.64x64.jpg Rod's Avatar

    Rod

    TV & Communications Sys Repair

    Satisfied Customers:

    2354
    FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.
  • http://ww2.justanswer.com/uploads/benimur/2009-03-29_003401_id_2.jpg Louie's Avatar

    Louie

    Technician

    Satisfied Customers:

    2208
    25+ yrs. experience in the field and 3+ yrs. online, down to component level.
  • http://ww2.justanswer.com/uploads/P0/p0llinate/2011-4-27_174649_tucker.64x64.JPG Nathan's Avatar

    Nathan

    Installer

    Satisfied Customers:

    1683
    Custom home theater installer, authorized dealer top brands.
  • http://ww2.justanswer.com/uploads/ST/steven.benoit/2011-4-1_194735_untitled1.64x64.jpg Steven's Avatar

    Steven

    Technician

    Satisfied Customers:

    1366
    Ma. Master Technician Lic. Authorized Warranty Support.
  • http://ww2.justanswer.com/uploads/IT/ITPeter/2011-5-3_23187_Pete.64x64.JPG Pete's Avatar

    Pete

    Electronic Engineer

    Satisfied Customers:

    1260
    12+ years experience installing and repairing electronics.
  • http://ww2.justanswer.com/uploads/3G/3guk/2011-1-15_132320_D1SC01363.64x64.jpg James's Avatar

    James

    Technician

    Satisfied Customers:

    1154
    AV Service Engineer (4 Years)