friends in advance thanks for your help it happens that I have a lg tv with 5aa chassis in old goldstar of 20 inches and has problems with the vertical I will not have and I already bought the new spare and nothing uses the 7837 and I realized that it does not reach him 24v voltage that comes out of flybak please wait for suggestions haaa but the flybak leaves two voltages for the vertical and only one appears

Friend reviews the fr315 should be open, likewise check the status of C306 and D303.

It has to reach 12 and 24 volt to the integrated. check track by track from the flyback to the ic connection pins. fusistors and associated diodes, as well as solder the solders and solved again, he says. salu-2 !!!