CRT显示器消磁继电器不断吸合（国外英文资料）.docVIP

CRT显示器消磁继电器不断吸合（国外英文资料） The samsungs 788DF, 763MB, 765MB, etc., all have a common malfunction, which is the CPUs intermittent work and the relay is clattering Such failures of AFC SENS of the machines CPU foot has a signal side, the work about the voltage to 5 v, exactly how much difference may be determined by the internal data (guess), but the signal to the output transformer, so this will involve a series of problems, when the line output has an abnormal working conditions can cause the signal is not normal, I have tried to get off the board plug, remove the secondary power supply, not thrust deflection can cause the CPU intermittent work, such as relay kipper ring, what is it, then after efforts to study discovered as long as the CPU AFC circuit diagram in boot instantly reach 5 v voltage protective work. Since the problem has been discovered, how to solve the problem has become a new subject. After a mornings research, the solution has been found. Connect to the + 5V and CPU AFC feet with a 4.7-thousand-euro resistance Disconnect the secondary power supply (remember, prevent the secondary power supply from causing unnecessary damage), You can start checking your problems as you want. After the repair, remove the resistance, after all, the design has its merits. Also found a problem is the original drawings R531 resistance for euro 56000, and the practical application for euro 82000, a case of people sentenced to death in the machine, check the basic element in good condition, finally the resistance in the repair for euro 56000. It is estimated that the parameters of the change tube are different from the parameters of the original machine elements and cause the low voltage of AFC. The SONY kv-f29mflj type 3 undegaussing relay repeatedly absorbs fficeffice / After turning on, no grating without image and no sound, the degaussing relay resorption. The fault may occur in the I2C bus control system and the controlled circuit. When the service is repaired, the ope