Not entirley sure id have to check, im pretty sure it might. This mod is designed so u dont need a blank cd isnt it?
http://www.nopom.org/tech/wp-conten...-lepai-ta2020-amplifier-016-large-800x600.jpg
http://www.nopom.org/tech/wp-conten...-lepai-ta2020-amplifier-016-large-800x600.jpg
You'll have to read through the thread.
What's the number on the face of the IC that's clamped to the heatsink?
What's the number on the face of the IC that's clamped to the heatsink?
Unzip this file and play it through the ipod into the blown amp.
http://www.bcae1.com/temp/100hz300seconds.zip
Set the volume to 1/2 on the ipod. What is the AC voltage on the two metal tabs on the back of the RCA jack when playing the test tone?
Place the black probe on the RCA shield when measuring the voltage.
http://www.bcae1.com/temp/100hz300seconds.zip
Set the volume to 1/2 on the ipod. What is the AC voltage on the two metal tabs on the back of the RCA jack when playing the test tone?
Place the black probe on the RCA shield when measuring the voltage.
Just wondering what does this tell u . I dont have anything on me to check the voltage... isnt the outputs 6v thats why the amp blew?
There's really nothing more I that I can do without having the voltage on those points (and a few others, which would be needed later).
The '6v' was the DC bias voltage on the speaker terminals. That tells me nothing about the voltage on other points.
The '6v' was the DC bias voltage on the speaker terminals. That tells me nothing about the voltage on other points.
What are all the points that need to be checkked? Ill borrow one to find out.
Are you gonna try and help me mod the amp to work with my headunit?
Are you gonna try and help me mod the amp to work with my headunit?
Find a meter and post the make/model (or provide a link to information about it).
Building a new circuit would take a bit of effort. Hopefully, the op-amp in the amplifier will be sufficient. One more may have to be added but since the power supply and input circuit already exist, it will be much easier to modify this.
Building a new circuit would take a bit of effort. Hopefully, the op-amp in the amplifier will be sufficient. One more may have to be added but since the power supply and input circuit already exist, it will be much easier to modify this.
Ok ive got a multimeter. What do i test with that sound file? Can u upload a photo showing me the points? Cheers
http://www.bcae1.com/temp/ta2020.swf
Post the AC voltage on the 4 points shown in the graphic above.
Set the volume on the ipod so that points A and B are 1/2v AC.
Play the audio file (link provided earlier) through the ipod while measuring the voltage.
Post the AC voltage on the 4 points shown in the graphic above.
Set the volume on the ipod so that points A and B are 1/2v AC.
Play the audio file (link provided earlier) through the ipod while measuring the voltage.
I couldnt get points a and b up to 1/2 v i could only get it to;
A= .3
B= .3
And that was on the 200m setting on my multimeter.
Then checked points c and d;
C= 5.22v
D= 5.22v
A= .3
B= .3
And that was on the 200m setting on my multimeter.
Then checked points c and d;
C= 5.22v
D= 5.22v
No. That's DC. There are only 2 AC voltage settings. Set it to 200v AC (to the right of top center).
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