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Ken Brown Model KB 2 29SLIM B, Chassis PSW29UT - 3B stanby flashing
11
hace 5 años
hace 5 años
Goodnight.
I got a TV Ken Brown Model KB 2 29SLIM B, Chassis PSW29UT ---- 3B
the stan-by LED lights up intermittently, the flyback hiccup is also heard
I have no diagram ..
suggestions are heard from now thanks.
17.741
hace 5 años
Hi. I think the same diagram you will not get. I will look for one for you.
You don't say anything you did to solve the fault. Review welding in general. Source - the vertical circuit. flyback And controls at a glance the source, output and vertical electronics that are not inflated. or doubtful
11
hace 5 años
des welds in the two stages
vertical electrolytic capacitor failure.
that was it.
the dessoldaduras were not visible even with the magnifying glass
Just review everything just in case.
46.781
hace 5 años
hace 5 años
To rule out that the problem arises either because of the source or its load (FBT and TSH) .......
Check the good condition of the filter capacitors of the auxiliary and + B sources in the secondary of the Chopper transformer
Free the source of its actual load and place a spotlight (70w) as a provisional load of + B.
In this way, check the stability and performance of the + B source, so that it then proceeds to place its actual load to observe changes or if the problem persists.
30.814
hace 5 años
hace 5 años
Hello Friend. check the source, resistors, zener diodes and rectifiers, and change the small filters and the opto coupler to new ones, and solve the choper and flayback pins and there after the choper there are some filters check them and check the diodes there . and check the tsh. It can be short and solved the pins of the ic. vertical. Cheers
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