hace 6 años
Cordial greeting friend Evolution store2, the voltages that come out of the different pins of the flyback directly in their pins are alternating voltages (AC) of high frequency since they are generated by the oscillation of the horizontal circuit that activates the flyback and these should not be measured with any multimeter since it is not very common that the multimeters bring this option of high frequency, only some bring it, as you will see after the pins of the flyback come resistances low in ohmiaje as protection and after these diodes are rectifiers that there if you can measure with the multimeter in DC scale, are the 180VDC of the color transistors or those that bring an IC, are the 26VDC of the vertical, the 16VDC of video, in some they bring -16VDC, to the pin of the ABL they arrive approximately of 9 to 12VDC, these come mostly from the B + of the flyback and this comes from the source, only the filament voltage that is mostly identified as (H) 8Heater) and H gnd are voltages short of about 4 to 6 VAC that these if you can measure them directly, the rest must be measured after the diode rectifier in DC scale, in the connector of the yoke should only measure the pins that correspond to the vertical, in scale DC I do not remember very well but I think it is in DC and in the pins of the horizontal it is not recommended since it is also high frequency voltage and the voltage there is about 2KVDC if I am not bad. the multimeters do not have that capacity of mdicion unless it is with a special probe, I hope my opinion has been able to clarify your doubts Greetings.
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