Wednesday, November 8, 2017

The power amplifier with "ticking" sound after turned off

The power amplifier with "ticking" sound after turned off

This time.. the author will discuss about how to overcome the damage to the audio power amplifier, where the damage is marked by the "ticking" sound sound symptoms after the amplifier is turned off.
The "ticking" sound is heard a few seconds after the off button is pressed.

There are 3 possibilities to overcome the amplifier's damage marked by the "ticking" sound after turned off:
1. The voltage at the measuring point (+) - (0) - (-) is unbalanced.
Check each polarity using a multimeter.
The cause could be due to an unbalanced transformer secondary voltage or the capacitor is damaged or unbalanced power supply load (amplifier power supply).

The power amplifier with "ticking" sound after turned off

2. The polarity error (+ / - is, reversed) on the speakers, including the crossover system.
3. incorrect in taking the zero point (ground) power supply for tone control.
Try to move the zero point (ground) for tone control to another main power supply point.
Find the other best points.
Also read: How to eliminate hum in amplifier circuit
Hopefully the above ways can help the reader overcome the damage to the audio power amplifier which is marked by the beep sound after turned off.
Hopefully always useful..
Happy Blogging!