I already check the horizontal trans and its ok some one accidently plug in the 220 voltage
This is fairly straight forward---if it got the fuse, input filter (big cap!) and the fuseable 7 watt-----
Understand (I do not know how savy you are) the power supply uses two grounds----on the primary side of the transformer (in power supply) it is from earth ground and on the secondary side from hot ground--when checking voltages= these are the key! you have to be on the correct ground to get correct readings.
Follow the money---the primary raw should be on that cap---follow it to see when it stops downstream.
220 can pop a lot of things---the set should also have a regulator IC in the power supply (could also be a big transistor) and if a chip--raw from that cap goes into it---and regulated comes out another pin---see if you have the raw and then see if at horizontal output collector and from there to flyback( with set off what is resistance reading from the collector of the output transistor to earth ground?
what kind of experience do you have with troubleshooting?
SOURCE: Main fuse blown on CT-32G11 32" Panasonic TV, Replacement fuses continue to blow.
If the main fuse keeps blowing, check the horizontal output transistor for a shorted condition and diodes in that section as well.
SOURCE: picture shrinks horizontally every few seconds.
You are changing parts in the wrong circuit. The problem is in the vertical circuit. Look for the vertical IC and resolder the pins first. It should be an LA7837 or something similar. Also, check the 100ufd and 47ufd caps in the same circuit.
Keep us posted.
Dan
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