Question about Philips 32PFL3403D/27 32 in. LCD TV
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center.If you wish to get some details; check the site linked here.Pull up older posts. http://electronicshelponline.blogspot.com/In most cases, the main board might have to be replaced.If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first.If it does not help you, replace the main digital board.There are two methods to reset TVs.The first is simple to do; a Hard Reset.The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset.If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option.If you wish to get some details; visit the site linked here.
Posted on Dec 11, 2016
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Posted on Jan 02, 2017
SOURCE: Won't power on
yes all sets have a fuse, But its unlikely that if the fuse is blown replacing it will fix the set, as usually a short exist when a fuse blows. Post the make and model of your set and i should be able to post a link where you can get a service manual and some free support to help you diagnose your sets condition.
Posted on Mar 26, 2008
If power light continuously flashing it means backlight problem. Two possible causes. One, backlight invertor is faulty. Two, but realy rare, one of the CCFL lamps went bad.
Posted on Dec 02, 2009
Some power? I would recommend you should get a sams photofact reference on your set and find out what voltages you should have at all exit points from the power supply.
I did find this entry on some people who had similar problems.
If you are handy with a soldering iron and not afraid to take apart the set give this a try!
Because the Samsung LNS4051D would not turn on and the power LED would blink 4 times and the relay would click and this would repeat again and again. I replaced power supply board parts CM806, 811, 812 & 817, all 1000 uf 10v capacitors, three had their tops bulged up slightly that I missed on initial visual inspection. After seeing the reports of problems with these caps on http://www.fixya.com/support/t1336881-will_not_turn_or_off , I replaced them with Radio Shack part 272-1032, 1000 uf, 35v. They are slightly bigger, but fit OK. TV is working fine now. Cost was 4 x $1.59 = $6.36 plus the time. I saved between $100 to 300 in the process of either replacing the board or getting the unit serviced. If you are not comfortable replacing components which means using a soldering iron, you can replace the power circuit board, available from http://www.discount-************/ProductDetails.asp?ProductCode=1030952-SAMSUNG&&Click=46
Posted on Oct 11, 2010
Testimonial: "Tried the 1000uf at 35volt Capacitor replacement and my TV came right on. They were slightly puffed up. Thanks very much.. Saved a lot of money...:) "
As such boards are cheap and fail quite easily (both the two sustain and the buffers) Philips service manuals are more oriented at board swapping then at proper testing. In this particular case the buffer boards fail very easily because of a bad soldering to IC. The short will regularly blow the main sustain board.
To start when a main sustain (e.g. Ysus) is fried the TV will go in protect mode with the led flashing in standby. One test is done disconnecting the Sus board (with power off) and restarting the TV. If TV does not go in protect, then the sustain board was good.
If there is no protection:
The first thing to check on a main sustain board is the fuse. If the fuse has blown the IC is probably fried.I believe fuse is F5004. Check for swollen capacitors that may have blown. Test the FET. That is the core of the board as it is the power amplifier.
Here the service manual:PHILIPS_SM_15540.pdf - Right Click "Save Target As"
Here a more useful service manual. Check and follow troubleshooting diagrams in manual.
Here some troubleshooting from users.
Note:if buffer board was shorted, then the main sustain board is usually faulty.
Posted on Sep 13, 2011
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