My television has a blue screen and the red light at the front of the television keeps flashing,how do i get it to work?
Your telivision may have its Chroma Ic faulty. Sony TVs uses their own coded numberd Ics, usually begin wi CX xxxxxx, or Philps TDA series Ics. These Ics contains so many sections integrated to one. That is Horixontal, Vertical, Synchronisation for both horizontal and vertical, video out drive section and its matrix, video If section, sound filtering section and so on which comes over 68 sections or so.If any of the among said section gets faulty, your tv will have some problems.
Here you can see a Blue screen. Therefore video out section of your TVs Ic is working well. The red flashing LED in the front of your tv indicates that there is some kind of short, not direct short, inside your TV.
You just do one thing. Open the back cover of your TV and find out the IC I have mentioned above. Switch on your tv, wait for 5 minutes or so, switch it off, unplug it from mains, and touch on the surface of the said Ic with your bare fingers and find whether it is overheats or not. Such types of Ics can be heated upto60 to 65 degree C. Not much more. If that Ic is faulty, it will heat up to a condition, which you can feel.
If there is no overheating is noted, there may be some low voltage missing. Sony TVs works on 112vDC main rail, 8VDC secondary rail, 5VDC for system control section, and 24VDC and 18VDC for vertical output and sound output sections.
Normally we noted is the missing of 8VDC rail. This 8VDC is derived from the secondory voltage of LOT, through a stepdown *V regulator Ic. If that Ics soldering point gets loose conatcted, of that Ic itsef is faulty, This kind of fault can occur.
If you are going to do it by yourself, keep the children away, and let an adult beside you as a precautionary measure. Never touch any part inside your tv while power supply is on. Take out power plug from the socket before touching any parts.
As yours' is a 27" TV, at about 25KVDC [25,0000VDC] points will be there inside. Keep Caution. Ok
Oct 20, 2010 |
Sony KV-27S66 27" TV