Production of the brightness delay line of the TV ----- Luminance Delay Line

Production of the brightness delay line of the TV, Luminance Delay Line Keywords: brightness delay line production Brightness delay line selection, detection and replacement After the brightness delay line is opened or shorted, the TV will appear in the image color. The brightness is unclear or the brightness is out of control, the grating is dark, and the contrast is strong. When detecting, it can be determined whether it is corrupted by measuring whether it is damaged by measuring the resistance value between the luminance delay line input and the output terminal. The resistance value between the brightness delay line input and the output terminal is measured with a multimeter R × 10 kΩ file (normal value of 30 to 40 Ω). If the measured resistance is infinite, it indicates that the brightness delay line has been opened; if the measurement resistance is close, the internal short circuit inside the luminance delay line will be described. After the brightness delay line is damaged, other model delay lines with the same model delay line should be used to replace the same model delay line. If there is no brightness delay line replacement, it can also be self-made latency lines for emergency repair. The method of making it is: Some of the aluminum foil is obtained, and a rectangular aluminum laminate of 5 × 10 mm is made, and a multi-shaped core line is taken out, the core is in contact with the aluminum foil. The aluminum sheet is viscame the aluminum sheet in a plastic rod having a diameter of 80 mm, a length of 120 mm, and then wrapped in a layer of polyester film (a transparent tape). The high-strength paint wrap of φ0.08 mm is wrapped around 1100 T () on the plastic rod of the film, and a copper wire having a resin adhesive bonding between the plastic rod is 1 mm, a copper wire having a length of 10 mm (also The iron iron is used to heat it into both ends of the plastic rod) as the lead line, and the two ends of the enamel wire are welded to the two lead lines, as the input and output of the brightness delay line, and the multi-shade of the aluminum foil As the grounding end, as shown in Figure 1. Round a few-layer transparent tape on the winding line.

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