I just replaced the CRT socket of a Toshiba wide bazooka TV as the picture was blurry and the pins were corroded and greenish in color. However when i start up the TV set, the picture and display turns to yellow including the raster. Any idea what seems to be the problem?
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Replace the CRT base connecting socket. It is bad.[Corroded Focus pin connection]. Can be located at the CRT base card.
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U have tools like a soldering iron and a roll of solders u also can do basic soldering work too?Yes,take the tv aparts.The tv video board that the board where it is connect to the tv CRT-(tv tube) it have cold soldering on it round pins sockets video board that it connect to the tv CRT-(tv tube).The tv video board that the board connect to the tv CRT-(tv tubbe).Those socket pins around the video sockets pins must be to do resoldering for a tight connections between the tv video boaard round socket pins to connections for a good connections to the tv video board and to the tv CRT-(tv tube).This will solved video fading in and out and loosing video picture.
You have to check the picture tube base socket. After some years of use the contacts of the base socket will become bad (normally the screen pin and focus pin). Just replace the CRT socket it will solve your problem. You can find the CRT base socket on circut board at the end of picture tube neck. Pull the circuit board straight to back,do not shack. It will damge the picture tube pins.And replace the socket with the same type. You will get it from any of the electronic spare part shop near to you. Remember one thing remove the socket from the circuit and keep it with you as sample when you are going to purchase a new one, Because there are different types of CRT sockets are avilable. Purchase one which is similar.
Hi! there are many causes why your tv has no picture, one either your have loose solder on your crt socket or rgb connection. two. the pins of your crt socket are corroded. and the worst is you have a defective flyback or picture tube.
No picture - screen is empty. Sound is ok
Check IC101 (BA7630F), if video signal comes to input (pin 1) but not present at output (pin 14) then replace this IC No picture and sound, only a high pitch sound at switch on
Remove horizontal transistor and measure the resistance across any two pins. This value should be no less than 200ohms
Picture fades away few seconds after start-up till no picture.
Sometimes no picture at all. Sometimes picture OK for longer. Sound
Faulty joints on CRT pcb. Cracked solder joints at tube socket
connections on CRT circuit board. Caused variable supply to CRT
heaters. Resolder all socket pins to pcb.