when i short circuit the C the music comeout. Does the ic broken?

I make amp 40w tda1560q.
It use external 2 capacitors 2200uF to help make high voltage.
I use circuit in its datasheet.
Its has sound of distortion all the time, no music out.
When i short circuit the C 2200uF on the left, the music comeout.

I think one of the circuit in the ic that make voltage is broken.
I never make a risk that ic can broken.

Does the ic broken?
 
Nuuk said:
Can you show us a circuit of exactly what you have built.
It sounds like you have the cap in series with the rail which would be wrong!

No, Nuuk, it's ok.
These are car-audio BTL "class-H" chips, they have a pair of caps between two pins each for lifting the voltage after a certain power output, when the class-H circuit kicks in.
Otherwise it would not be possible to have such a power with only a single 12v battery.
This chip is similar to the TDA1562, but with less power.

I don't know what the problem can be, though...:xeye:
Maby a faulty chip, but they are not cheap... the TDA1562 costs ~15€ around here.
 
jinkuchi said:
I make amp 40w tda1560q.
It use external 2 capacitors 2200uF to help make high voltage.
I use circuit in its datasheet.
Its has sound of distortion all the time, no music out.
When i short circuit the C 2200uF on the left, the music comeout.

Hi jinkuchi

Is the pin 17 of the IC connected to ground?

If not , connect it to ground...

Regards

Jorge