Question about Crunch BLX1000D Car Audio Amplifier

SOUND CUTS ON AND OFF WHILE PLAYING

THE SUOND FROM MY AMP RUNNING MY SUBS CUTS OFF AND ON THE LED STAYS ON.WHEN THE SOUND IS OFF I CANTAP THE AMP AND IT PLAYS AND THEN CUTS OFF AGAIN.THE WIRING IS FINE. IF IT IS A DRY SOLDER WHERE ON THE A BOARD WILL I FIND THE PROBLEM

1 Answer

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1,139 Answers

You may have solved your own problem. If you can tap the unit and have it work that is a sign of a loose connection. I would suggest if you have electronics background you check the circuit for a cold solder joint. Then use a soldering iron to go over the joint. Better still hear up the joint and use a desoldering device remove the old solder and then a soldering iron to apply new solder. This should do the trick it a cold solder joint is indeed your problem.

Posted on Sep 04, 2007

Anonymous Sep 04, 2007

I am a big fan of the OEM circuit diagram, You can try to contact the manufacture and get the diagram that way. Which to me is the best way of going about this task.

Thank you,
Anonymous Sep 04, 2007

As for the bandpass box a book on filter design can help you with that. It will have the calculations you need to make and a parts list.

I hope this helps.

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