20 Most Recent Philips 37PF7320A 37 in. HD-Ready LCD Television - Page 4 Questions & Answers

Is the power supply completely dead ? If so with this model of power supply its very common for the resistor 3318 on power supply to go out. Causing the power supply to completely die. Take out the resistor 3318 its a 470 Ohm 1W resistor. check it if it doesn't read around 430-530 Ohm Its gonna be bad ( most likely ith will read in the mega ohms. Replace with a 470 Ohm 2 W resistor. Also check power supply for cracks

It may have problem in the power supply section similar to this one here:
http://s807.photobucket.com/albums/yy352/budm/Philips/Philips%2037PF9631D_37/
Post pictures of the boards will help a lot. You will really need the service manual to troubleshoot down to component level. So start inspecting the power supply section first.

Basic troubleshooting guide here: 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 Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/ Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Parts: www.shopjimmy.com Parts: http://interliquidparts.com/ Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps. Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Replaced any capacitors on the power board that have domed tops.

The problem might on on your inverter board or the back light is busted.

1.Check for the input supply of the inverter board. the supply must be 24V of 12V use a multimeter range on DC

2.Then if you have input voltage (24V or 12V), check for the output of the inverter board it should have 500VDC.

3. If the output is present , the problem might be on the back light. Replace it, its available on electronic shop.

Hope this may help you

power supply board not working properly.check output voltages

push the vol up and then the vol down on the side of the tv or ch up then ch down, the set is stuck in a factory mode, this will clear it.

When I turn on my TV it goes straight to the menu screen. You can still hear sound but no picture. When I try to exit you see the picture for about a second then it automatically flashes back to the menu screen. Even if I try to use the functions in the menu screen it flashes right back to the main menu screen. Very frustrated...need help!

Unplug,replug about hour later,let see if it reset itself,see if it go away.Not the manual controllers board is dead,the board in the right of the tv.

If you are comfortable, take the back off and on the lower right hand side, locate the control IR pickup board. (The Remote sensor). Follow the ribbon cable and relocate that wire away from the inductors on the X board.

You could also try a software update. That may fix the problem.

An incredibly simple fix after a month of frustration. Get a blank USB flash drive. Go to Philips web-site. Go to your model #. Look at problems and you'll see the menu problem. You need new software. Follow directions and download software on to flash drive. Plug in to set and watch it load up. Instant fix. I'm a very non-geek and the whole process took <15 minutes.

send me a copy too if you found it, [email protected]

thanks...
KW

Need to check the electrolytic caps on the main power supply,for bad or bulged caps, and replace them , or just replace the power supply.

Hello,

Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Good luck in solving the problem...

It can be the main power supply is not working, the standby power supply is working OK at this point. You will need the service manual to troubleshoot it down to component level.
I would inspect the main power supply board for any bad resistors, caps, etc.
Shorted out backlights inverter board can also cause the main power supply to go into shutdown also.
Failed PHILIPS due to using under rated 10 cents resistor: http://s807.photobucket.com/albums/yy352/budm/Philips/Philips%2037PF9631D_37/

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: Basic troubleshooting guide here: 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 Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/ Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Parts: www.shopjimmy.com Parts: www.interliquidparts.com Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps. Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

The TV is in some kind of protection mode, the blinking LED show you an error code.
Try pressing 062596 and then press menu button (do these in quick motion, don't let them to time out while keying)...see what happens
Well I think that if you would have a service manual for this set that would help a lot, I can send it to anyone who wants it via email/gmail. Let me know if anyone want one.

I also heard that this problem appeared with some people because the of the burnt fuse in the TV. To fix that it has to be taken to the tech shop.

And yes I also heard about this issue many times, seems like this TV set is very popular with this kind of problem.

Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.Because the power transformer and fuse blowns all the times,board have major shorts somewhere in the board with multiple components parts,will not able to solved it,only have excellent electronic trouble shooting skills and circuitries thoeries only able to solved it.

Take the tv aparts,the tv power supply board that the board where the power a/c cord is plug it into it.Check the tv power supply board carefully for dying capacitors like bulging up or puffing up onto it tops.Have all the tools.Now basic electronic also can do basic soldering work too?Yes check and replace all dying capacitors.Or tries like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

You will need to have that unit serviced. The flash of red indicates that it is probably the LCD, specifically the inverter.

Thanks!
EJ Kudelka

Common short the cover cap over the video & sound boards short out if you remove it the cap only (shield metal) it usually will fix this i have the same tv it works like new