Check the voltages all are well during the time the TV is turned on at the time it turns off the voltages practically go to zero. and it does not turn on again I have to disconnect from the network and reconnect to enter standby. I already changed the capacitors that were devalued but the problem persists in terms of voltages the B + in sstandby 82 vol. on 146 vol. Then there is the 16 vol and the 5 vol. It seems to be fine. What I notice is that at the moment of going out it makes a noise like a deflating balloon. thanks for your help.
Good evening yoreparo friends, sorry for not answering, I had other jobs to do and a little rest trip, going back to the subject, I checked how you told me the polyester capacitors and I found one with code 124J 400v in position C425, which is 120nf. devalued that barely measures 63pf. Tomorrow I will look for a new one or in good condition and try the TV if it happens. See you tomorrow, colleagues. Thanks for the suggestions..