20 Most Recent Philips 52PFL7422D/37 TV Questions & Answers

certain tvs have automatic tuners that scramble channels, do a reset on the tv and scan your tv channels again

You may have to go into your settings on your xbox and try to manually change the resolution settings.

First, check your tv's audio settings, somebody might be playing a prank on you. Next, try listening through the headphone jack, if it has one (after tv setting's ok). If sound is heard through the jack only, the audio jack might be defective, BUT highly unlikely if you hardly even use that headphone jack very oftenly. There are a couple more I'd like to say but will take up more space here. Using the remote control is one...i'm just suspecting these in order as my last resort...(switching) IC responsible for audio digital switching, or just plain ol' defective audio amp.

You might have a defective audio amp. One thing you can do is try to compare the impedances of the audio amp's left and right channel (tv off) outputs with speakers disconnected. any major inequality in (ohm) reading obviously will tell you so.

These problems can also be caused by loose contacts in power outlet, RC jacks, cable and sockets.

The problem of that is a loose solder on the board..

I have the model Philips 37PF7320A/37 won't turn on and MOST articles on the Internet say it's the Capacitors capictors capictors..I checked all of them. My tv just blinked red lights, had the clicking sound at first power on, but then goes black. No sound. No picture. Nothing. Just blinking red lights. MINE WAS RESISTOR no. 3318 , a 100 OHM RESISTOR ON POWER SUPPLY BOARD. I BOUGHT REPLACEMENT FOR .99 CENTS SOLDER IT, AND EVERYTHING WORKED!!! THAT WAS ALL IT TOOK. JUST A SUGGESTION.. 1. CHECK FOR BULGING CAPACITORS (90 PERCENT OF THE PROBLEM) 2. THEN CHECK FOR RESISTORS WITH MULTIMETER ( FALLS INTO THE OTHER 10 PERCENT OF THE PROBLEM.) TELL ME IF THAT [email protected]

There is a surface mounted fuse on the T-CON board which is fed either 5vdc or 12vdc (depend on the LCD panel) by switched transistor on the main board. You need to find out if there is voltage on that fuse. Post back what you find.
I hope that $20 board is good since it seems to be so cheap.


T-CON/LCDPANEL troubleshooting: http://www.mediafire.com/?zzjygannjtyLCDpanel: http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

Basic LCD monitor and TVtroubleshooting guide: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting http://www.fixya.com/support/r7406380-tv_training_manuals Failed TV and Monitorspictures: http://s807.photobucket.com/albums/yy352/budm Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Parts: www.shopjimmy.comParts:www.interliquidparts.com

To solve this problem, follow the link below and follow the instructions on the linked page 14 on how to solve this problem. For me to give you instructions here, it would be too long so I set up this link that will take you to solve the problem you're having http://download.p4c.philips.com/files/5/52pfl7422d_37/52pfl7422d_37_fur_aen.pdf#search=tv%20turns%20on%20but%20turns%20right%20back%20off

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom (look for discoloration of the circuit board around the base of the capacitor) need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the unit will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and/or inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are SURE it's only doing supply output ripple filtering,
and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

Backlight related video here:
http://www.youtube.com/watch?v=6XoF6QZ1dmw&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors, amplifiers, computer power supplies and motherboards, and other electronic equipment.
The parts are cheap, and skill required is minimal.
A great parts source is Digi-Key, and you can order the parts online at www.digikey.com
They typically cost under a dollar a piece plus a flat shipping rate.
The parts usually arrive one business day later.
If you watch the third video, you will see that even someone with no soldering experience can perform these repairs as demonstrated by the woman in the video.

i am pluging up my playstaion 3 up to my philips flat screen in the hdmi cable slot and it is telling me to change the source resloution

If you would like a used panel I would look at Ebay. Other wise you will not be able to find a used one. You can get a new one at the link below though.

http://www.partstore.com/

I have the same model and the same problem... I am told the power display board is is the issue and may need to replacing. New board costs around $80,or a bad capacitor depending on your paitence.

Yes,it is the power supply board problems.The power supply board,that board where the power a/c cord plug into it.U have all the tools,know basic eletronic and basic soldering?Yes,check the power supply board for those dying parts call capacitors.These capacitors that are dying,it alway will bulges up or puffing up on it tops.By checking the power supply boad and replaced all these dying capacitors,will solved ur tv powering up problems.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

From what you have described it sounds like the tuner is having difficulty receiving analog signal. A firmware update may do the trick. You can also try an RF-component RCA adapter that converts the analog signal into digital. The adapter costs about 40$.