WHEN WE TRY TO TURN THE TELEVISION ON IT WILL NOT SHOW A PICTURE BUT SOUNDS LIKE IT IS CUTTING OFF AND ON.
Several things can cause a no-start condition. The EEPROM is my first concern. But before you even try to replace it you will have to resolder the Tuner on board. If you can pull the board out of this TV safely, do so. Where the RF connection is, this is the tuner. The tuner is built into the board, you cannot remove the tuner.Unsolder the bottom shield of the tuner. You will take the cover off and find about fifteen area to resolder. You must inspect very close to find these. The grounds that grasp the tuner cover will need resoldered, you can see where the solder is cracked. There will also be center pins in this area that will need resoldering as well. It will require lots of patience and skill to do this soldering. You do not want to burn the the PC traces as you will destroy this TV. After you rsolder and replace the tuner shield, then you may attempt to replace the EEPROM. The EEPROM location is U3201V. You will have to give me a Chassis number to find the correct EEPROM part. Other problems in the start up may be that the switch mode regulator will need resoldered. Location is U4101V.There are eleven pins to inspect. Also any radial capacitors in this are may be weak and may need replace. Please check these. I cannot remember for sure the values or location of these capacitors. I think one was 63 volt 10MF, this is known as the startup cap. Another cap was a 200 volt at about 2.2Mf. These are radial electrolytic capacitors. They are near the regulator I mentioned. Well these are very good leads for repair. I could go on and on.Seems complicated and, is if you have not worked on this model. You must have patience and skill to do this. My first concern would be to resolder the tuner. See what happens. Thanks for asking and show all hands of support.
May 16, 2011 |
GE 32GT740 32" TV