Tv phillips without audio
Hello how are you, Greetings from Zulia, if we go here in Venezuela a potentiometer is more expensive than the new audio output, also if you get to assemble the smallest amplifier you must mount it in a universal bakelite that are also expensive and tin That is also important, I think that in general terms it will take more labor on your part and will be much more expensive than buying the new audio output.
I totally agree with you what is lived here in the country is complicated for both the repairman and the owner of the device in this case it is familiar and not only is it to mount the audio output the tracks of the print are also damaged by a "technician" that malogro the circuit, so that the work becomes more complicated because you have to restore almost all the tracks of the audio stage, I just want to try to recover the TV with components that can rescue from other chassis.
Indicate model and / or tv chassis. Perhaps seeing the diagram a new recommendation emerges
BD088C872.png [16.81kb]
List of components:
1 resistance of 1MOhm
1 4.7KOhms resistor
1 10uF electrolytic capacitor
1 NPN transistor, any mentioned in the circuit, or any other hFE of more than 300
1 PNP transistor, any mentioned in the circuit, or any other hFE of more than 300
3 terminals or jacks for connection, one for the source, one for the input and one for the output
friend here there are two transistor-based circuits see which one turns it out friend
Very good both assemblies, could one last question put a volume control with a potentiometer? Where would you place it?
The potentiometer pin 1 audio input pin 2 audio output to the amplifier and pin 3 to gnd
Implement the circuit you gave me and I adapted it to the TV in question and it worked perfectly, I thank all the colleagues who provided solutions to this fault.
I am glad my friend a hug and God bless you I hope soon things get better after your country