Question about Nitro BMW-481 Car Audio Amplifier
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
It probably has shorted output transistors.If it's like many of the Asian amplifiers, the outputs will be larger than the rest of the devices clamped to the heatsink. If you measure the resistance between the legs of any individual output transistor and read anything near 0 ohms, the transistor or one in parallel with it is likely shorted and will need to be replaced. You'd have to remove it from the board for definitive testing.
The donut is a power transformer. The coil with the black stick is an inductor.
The following page will help acquaint you with the components inside the amplifier.
Amplifier Repair Primer
Posted on Aug 15, 2008
SOURCE: 481 doesn't work
did that to mine. Bat went dead and went to jump the car. What happends is when you attach the jumper cables, it surges the power to the amp. This gets worse with caps. I would say you blew the relay in the amp and needs to be replaced. It is worth fixin but youll have to send it off or take it to a repair shop to have the new relay put in
Posted on Oct 23, 2008
could be blown fuse could be shorted output or to much a load bad ground bad signal or damaged amplifier take it to a professionall installation facility to many things from that description could be the problem
Posted on Mar 17, 2010
Tips for a great answer:
Nov 20, 2012 | Briggs & Stratton Briggs Stratton Intek V...
Nov 14, 2010 | Saab 9 3 Cars & Trucks
Mar 18, 2010 | Rockford Fosgate Punch P8002 Car Audio...
Sep 20, 2009 | Car Audio & Video
Jul 31, 2009 | Stanton STR8-80 Turntable
Jul 31, 2009 | Audio Players & Recorders
Mar 22, 2009 | Car Audio & Video
Jan 09, 2009 | Epson Stylus Pro 7600 InkJet Printer
Jul 23, 2008 | Rockford Fosgate 800.2 Car Audio Amplifier
Aug 14, 2006 | Legacy Audio American Legacy II LA690 Car...
Mar 06, 2015 | Nitro BMW-481 Car Audio Amplifier
51 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: