Scarlett-E227T color TV no color, black and white image contrast is weak, sometimes without an image

Author£ºUnknown Source£ºNetwork 2015-05-31 09:00:15

Core tips£ºScarlett-E227T color TV no color, black and white image contrast is weak, sometimes without an image

 

It is surface acoustic filter is not totally damaged the symptom, measuring surface acoustic filter {5} and {1} feet foot 12K ω ~17k ω resistance value.
As shown in Figure 3, pre-transistor capacitance C163 c and {1} for surface acoustic filter feet broken, then use a wire C163 {4} foot connected with surface acoustic filter, troubleshooting.

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