Hi all
Amp has plenty noise in the output. The resistors shown in the image with white circle burned. I would like to know the values of the resistors. The resistors with big white circle both reading 1.9k. The resistor with small white circle is open.
I tried with 10ohms in place of resistor with small white circle and it gets too hot but the noise reduced very much.
Amp has plenty noise in the output. The resistors shown in the image with white circle burned. I would like to know the values of the resistors. The resistors with big white circle both reading 1.9k. The resistor with small white circle is open.
I tried with 10ohms in place of resistor with small white circle and it gets too hot but the noise reduced very much.
Attachments
A photo of a 3.5k online shows what appears to be 2k resistors.
How is the resistor connected? Directly across the output? In series with a cap across the output?
How is the resistor connected? Directly across the output? In series with a cap across the output?
The resistor is connected in series with cap to the ground and output terminal. The 10ohm i connected got very hot.
I don't see any similar values on any of the diagrams of similar amp diagrams.
Most of the series RC networks are used for each output (positive and negative). Is there a similar RC network for the other speaker terminal?
Most of the series RC networks are used for each output (positive and negative). Is there a similar RC network for the other speaker terminal?
Then when I use 10ohm why the resistor getting too hot. What will be the reason for that resistor to get hot and burn?
Did you try a 4.7 ohm?
The resistor is expected to get hot. That's why it's large.
A bad inductor could cause excessive heating but it's unlikely to have 2 bad inductors.
The diagram had a note that a 2w was an option.
The resistor is expected to get hot. That's why it's large.
A bad inductor could cause excessive heating but it's unlikely to have 2 bad inductors.
The diagram had a note that a 2w was an option.
There are two caps 105 450v connected from both output to ground are bad. I have 105 250vdc, can I use this.