Question about Televison & Video
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Posted on Jan 02, 2017
SOURCE: Have an Acer x233h LCD
If you can see the image with the flashlight, the T-CON board is good but you do not have backlight for the lighr source for you to see the image. Check out the backlight and the power supply circuits.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Please post back what you find.
Posted on Nov 23, 2010
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
SOURCE: My Vizio 55XVT1A power on, has sound, but no picture. I changed new power board, main board, T-cond board, but it still same problem. What's wrong with it? Is it anything with inverter board? Than
If this is an LCD tv the backlight inverter is bad, a good way to check it is to shine a flashlight close to the screen and see if you can see a faint picture.
Let me know what you find
Posted on Feb 19, 2012
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