|
The service switch is NOT for setting convergence...if you adjust the convergence in the service position, it will be off. The service switch is for setting your color temperature...this allows you to balance the red/green/blue proportions.
To set it up--put service switch in service. Adjust red, green, blue screen controls until each color line is barely visible on screen.
Kine bias=kinescope (picture tube) bias, it sets the range of the brightness control. You adjust the kine bias up if, when you are setting up the screen controls, you have the screens maxed out and one or more color lines are not visible.
Green and blue drive are to set up the "foreground" color balance of the picture. Red is the weakest gun in the CRT so it is usually always run full power...you can then adjust the green and blue to match it.
Bad sound could be a misadusted quadrature coil, this is a coil in a metal can near the sound detector tube. It may be good to refer to service data to make sure you get the right coil.
Adjust the vertical height/linearity before setting convergence: misadjustment will mess up convergence.
You can do convergence using a menu from a DVD or a channel like Home Shopping network that has static text on the screen. Turn the color control down to produce a b/w picture. Adjust the three magnets on the convergence coils and the blue lateral adjustment (knob on back of CRT neck) to converge the text in the center of the screen. Use the 12 potentiometers/coils to work the edges.
|