Kenbrown Chassis 34BI brand TV does not turn on the LED turns on and o
Friend, you have the notice on the screen
If there is a horizontal line, you have a vertical fault, you should also check those voltage variations in the b +
Check the vertical, feed it, there are few components, so I recommend you do it one by one, and without thinking, change the filters in that section,
friend. measure the tension on each pin of the ic. vert. and upload results and what number is the ic. vertical. Cheers
I did the light bulb test and the variation makes it bone that is a problem of the source as much as I approached the diode with the test of the major bulb was the oscillation.
change the vertical ic and nothing change the octo and the regulator ka 431 and nothing remains the same I did the test of the bulb by cutting the + b before flyback and towards the same thing I continued testing with the bulb further backwards or immediately after the diode and the oscillation is much faster
it seems to me that the source is the one that is delivering this oscillation or the diode does not rectify
change the p6nk90z regulator and the tea1533 oculator and the output diode a + b change the octoacople and the tl431 the vertical ci and nothing remains the same, it continues to vary when power is given from 76v to 103v and from 103v to 76v until it gives standby and halli is fixed at 76v
I discovered diode d817 of the short source that is an STK107. I would like to know if I can replace it with an IN5397G