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fix two fried amps?


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importhunter 
Copper - Posts: 76
Copper spacespace
Joined: November 30, 2005
Location: United States
Posted: December 24, 2007 at 8:53 PM / IP Logged  
also i tested the ground and positive and I am not getting a reading. so thats a good thing right?
i am an idiot 
Platinum - Posts: 13,670
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 24, 2007 at 9:07 PM / IP Logged  
Right   as long as they are not reading below .300 they are fine.  
importhunter 
Copper - Posts: 76
Copper spacespace
Joined: November 30, 2005
Location: United States
Posted: December 24, 2007 at 10:10 PM / IP Logged  
sweet, so am I ok to wire it up or should I test some other stuff?
i am an idiot 
Platinum - Posts: 13,670
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 24, 2007 at 10:48 PM / IP Logged  

Did you put the old surface mount transistors back in?   If so I guess we are ready to test.   This is very important.  Put a 10 amp fuse in the power wire of the amp.

importhunter 
Copper - Posts: 76
Copper spacespace
Joined: November 30, 2005
Location: United States
Posted: December 25, 2007 at 2:57 PM / IP Logged  
It popped 2 of them.
i am an idiot 
Platinum - Posts: 13,670
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 25, 2007 at 5:27 PM / IP Logged  
i am an idiot wrote:

Did you put the old surface mount transistors back in? 

i am an idiot 
Platinum - Posts: 13,670
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 25, 2007 at 5:35 PM / IP Logged  

Connect only the remote wire and the ground wire.    Connect only the remote wire and the ground wire.   Get a volt meter and connect the ground lead to ground.  Put the meter on DC volts scale.  With power to the remote wire, touch the positive lead of the meter to the left leg of one power supply transistor.  Write down that reading.  Then touch it to another power supply transistors left leg.   Write that down too.  Then do this for the transistors on the other side of the amp. 

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