yogurthu

426

hace 5 años

Does not amplify? Please indicate if the problem is in the test bench or installed in the car and if so, with the engine on or off.
Anyway I would start checking each electrolytic before doing anything, in addition to using a 12v vial in series with the power supply.
Checka diodes and zeners tb.
Photos, circuit model you changed, etc. all that influences to try to help you better ..

dany25120

5

hace 5 años

Yogurthu thank you partner for answering notice that the stereo is original of the ford fiesta change the two integrated number 70886fb and 70005ac but it was the same does not give me sound and times if it gives but it starts thundering the bosinas as in the car and in the workbench it does the same to me but a picture so you can see what kind of card you bring

yogurthu

426

hace 5 años

Let's put pictures of good quality, and below the tb plate to see the welds and tracks of the solved ..
Useful data TDA3681 is the same 70886fb.
Some already changed the equipment, came out with heat dissipation problems that radio seems, so it burns ..
https://www.youtube.com/watch?v=TNt9Och3E3o

dany25120

5

hace 5 años

So he is a companion of fact and I changed them both but notice that I found a piece in the form of a surface transistor only that it is not a transistor but that a diode says so AN 25 but the detail I do not know if it is a diidi zener or a fetus could you help in that detail

dany25120

5

hace 5 años

Notice that I changed the 2 ic and I gave service the integrated surface with the heat and then still working at 100