noblex tv mod. 21tc672f, shoot source 55v and turn off
hello good day, I open more information, change the filter of more b, change the diode of this line, change the filter of 2200x16, solve almost all the plate I lack the area of the tuner, and it turns off when you want to appear the image-
-What you notice that forcing the plate a little does not turn off, it is as if it is a problem of welding, solve the jungle the micro look with a magnifying glass is well welded, it may be some terminal that is loose inside the component, also solve the card of the trc. I await help from the valuable experience, from now on.
colleague: did the test of the source with simulated load .... this is the first thing to do, have to do and see if the source regulates the + b in the 130v .... as I explained in the previous comment I must withdraw the Q432 salt-hor- of the plate and connect a 60-75w filament lamp between the positive of the C620 and mass ... and see when giving power if the + b is stabilized in the 130v ... it is of vital importance ensure that the source regulates well in the 130v ... then it will be seen xq, it goes out ... do this test and comment results ....
hello masters, locate the fault was false contact in pin more b. of the flay, but very mysterious the welding was perfect even I washed it with tiner, but I didn't see the tip of the pin, it was like a solder ball, firstly my intention was to remove the flay to discard if some filament soldiers at the pins were not making false contact, but at the time I was desoldering with a mesh I noticed that the pin was burned in the same way, remove the flay and clean all the pins well and solder it again in its place and it solves it solved, I thank the tracks that have been