21 inch flat screen AC TV without sound
Hello Friend. check the small transistors that are close to the ic. audio follows the line of pin 6
Hi Manolo, thank you for your input and check the small serca transistors of the integrated q803 and the q804, also the q603 and the q604 in good condition, as I said before, do not connect the output connectors to the two speakers when doing the test, I connect one of the two connectors where the keypads go and when you turn it on you will hear a shriek and there is no sound, when you press the volume ballon it is at maximum but without audio the volume goes away and it goes normally but without sound. change the integrated audio for one LA 42072 N I already did the test and nothing
friend. You already checked the horn and the filters that are on the ic. and the line of pin 6 of the ci. deaudio
I just tested the speakers and they are fine, check the serca filters of the integrated one that are 4 one is 10uf 50v ok the other 3 are 47uf 50v one marks me 47uf there are 2 that I am with doubts now I take them out, I try them and you I comment, thanks for being there, I thank you manolo
Hi Manolo, he already has a little bit of audio, but I upload it to the maximum and he listens quietly, I will have to continue with the filters, check diode, zener diodes nothing, the one who does not persevere does not succeed, I will continue searching, thanks for being, I thank you Kapo
friend. try putting the 42032 because it might be that ic. It's bad and the one I had is supposed to be good.
Hi Manolo, I thank you for your contribution, I already measured on leg 7 and if you have them 12 v, we leave it for another day, I'm sleepy, I tell you tomorrow or Monday, thank you for being there, I thank you, brother, a hug