I have 32 Philips TV model # 32PFL5332D/37. Sometime TV backlight goes off but still sound is present. Sometime this happen 5 times in 5 minutes and some time does not happen for hours. when it happen I simply turn OFF TV power from remote, wait for few seconds and turn back ON again and it fix the problem. I did flash light test and when I put flash light on screen I can see menu or picture. I did visual inspection of power supply board and inverter board and all Capacitor looks fine. Any help will be appreciated. Thanks
Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
SOURCE: Philips 42PF7220A/37 Chassis Number BP2.3U
I think its something on the picture frame board or on the line output board. I would sway to the line output simply because I think but not sure that error code is linked to the line output stage plus when you unplugged the cable the voltage seems within parameters. Good luck.
SOURCE: Philips 42PF7220A/37 April 2006. Chassis Number BP2.3U
Most likely the YSCAN UPPER board and/or YSCAN LOWER Board also gone. Your new YSUS board may damage again if you don't replace the bad YSCAN boards. Try to replace the three boards together and then to verify which boards are bad one by one. Good luck.
SOURCE: Picture goes black but hear the sound
this is the problem related to display of ur TV screen...please contact the service centre...plz dont try to repair it urself..
SOURCE: Philips lcd tv 42pfl5432d/37 no picture
If you feel you have isolated the problem board, you might check here for a replacement:
Jimmy's Parts
SOURCE: Have a Magnavox 37mf321d LCD TV, one day, went to
Although a capacitor may look good, it may be weak or bad. Here is what you will have to do. Replace capacitor (location) 2074 which is a 25 volt 2200Mf at 105 degrees. Replace capacitor (location) 2081 which is a 35 volt 1200 Mf at 105 degrees. And you should change capacitor 2066 which is a 16 volt 10Mf at 105 degrees. Please be careful with the last cap mentioned. You can easily tear the PCB trace if you are not extremely careful. This should bring your TV back to life. Thanks for asking and show a few hands of support!
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