Technique to repair tv sources - 3/4 video 

Link of the first, second and fourth video of TV source repair with Standby and Inverter problems:
• Reparacion de fuente d...
• Reparacion de fuente d...
Technique for 3/4 video TV sources
Continuing to repair TV sources, this time I bring you a new video. But before starting this video, let's talk a little about how they work and what are their stages of operation. Like PC sources, these sources are separated by two operating stages, such as the primary stage, known as the hot ground stage and the secondary stage as cold ground. Most of these sources are formed by three sources that are:
1) PFC.
2) STANDBY.
3) Invest.
How to identify these sources?
We distinguish them by their position, shape and size, for example the PFC source, is associated with the mains voltage and the main capacitor, it is located in the primary stage, it is the intermediate size between all transformers, the Standby and Inverter are associated with the primary and secondary stage, they are easily recognized because in the middle of their transformers there is a line that separates the hot and cold lands, the standby transformer is the smallest of all the transformers, instead the one of The Inverter font is the largest.
What is the function of each of them?
The PFC source: As its acronym indicates PFC (Power Factor Correction) power factor correction, it is responsible for doubling the voltage from 160-170 VDC to 380-400 VDC. In addition to being responsible for supplying the necessary power for the Standby and Inverter source to work.
Standby Source: It is responsible for feeding the MAIN card or control circuit, in order to start the operation of the equipment, usually this voltage is between 3.5 to 5 VDC.
Inverter Source: Converts the voltage of 380 - 400 VDC to the output voltages, these can be 5, 12 and 24VDC, depending on the type of source, it is also responsible for feeding the backligth circuit.
I hope you find this information very useful. In the same way I take the opportunity to invite them to subscribe so that they are attentive to all the novelties of electronic repairs, projects and services. Here are other links for different repair videos: • Reparación de error ge...
• Reset de almohadillas ...
• Mantenimiento de video...
• Mantenimiento de Aire
• TV LED SIN IMAGEN
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