The digital display on the screen of the household pass set-top box is incomplete, and there are several cases as follows:
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One, the digital display circuit is faulty.
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Digital display circuit failure, the reasons are: digital drive circuit damage, digital screen bad, display circuit power supply loss, etc., this situation generally does not affect the viewing program.
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Two, the system IC circuit failure.
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System microprocessor failure, will cause no viewing, digital display.
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3. The power supply is abnormal.
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The main ones are: power supply board failure, such as filter capacitor leakage drum failure, abnormal voltage, the whole machine in addition to the red power light, other all crash; The mainboard voltage regulator circuit is faulty, generally 1.2v, 1.8v, 2.5v and other voltage regulators are poor.
This phenomenon is mostly the 8-type digital light emitting diode is broken, resulting in the digital display lack of stroke incomplete phenomenon, replacing the 8-type digital light emitting diode can solve this problem, there are also and a small number of digital drive circuit problems lead to display stroke missing fault, more digital light emitting diode drive integrated circuit can solve such problems. problem