Is your picture tube malfunctioning? Don't rush to buy an expensive replacement or purchase a new TV. Many techniques have been developed that describe in detail how to restore a picture tube in relatively inexpensive ways, while you will have to identify the exact cause of the malfunction and then correct it correctly.
Instructions
Step 1
When choosing a method of how to restore a picture tube, first identify the cause of the malfunction in its operation. Quite often, the performance of the device is affected by the occurrence of a short circuit between its electrodes, as well as reduced emission. Often there is a break in the channel thread or stripping of the cathode, which ultimately leads to color distortion. Next, study the picture tube diagram indicated in the instruction manual for your TV. Use in the repair the principle based on the thermal training of the cathode, as well as the removal of spent particles on its surface.
Step 2
Firstly, deciding to perform a picture tube restoration, first assemble the device with which you can fix the unit for your TV. You will need a T1 transformer located on an old tube TV, a VD1 diode or a diode bridge, C1 capacitor, two-section and three-section switches. From these parts, quickly assemble a special device with which you will repair your kinescope in the future, and then check according to the diagram that you have assembled all the necessary parts correctly and test the unit for its suitability.
Step 3
Secondly, the method of restoring the kinescope provides for the supply of various sizes of heat to the unit in a clear sequence, which should be strictly observed. First, apply a 6, 3V glow to your picture tube and wait fifteen minutes for the device to warm up sufficiently, then apply an 8V glow for just two minutes, and then an 11V glow for two seconds. Do not exceed the heating time, otherwise the kinescope may completely burn out instead of the necessary heating. Performing the last step, apply the heat to 6, 3V, and then briefly press the SA2 button so that the capacitor is discharged to the cathode-modulator.
Step 4
Repeat this operation several times, and then connect the wires to the modulator and the cathode, but remember that you no longer need to change the heat when performing this operation. It is better to switch the wires using a P2K switch, which is usually used to transfer the heating itself to the desired voltage. Remember that the restored picture tube will work no more than a year, and its performance depends both on the type of the picture tube itself and on the resource remaining in it. If the kinescope has almost completely sat down, increase the heating to the maximum, but the unit itself may burn out.
