Audiopipe APMI-2000

[rhempz01]

Ok, so I have this amplifier. This amplifier had a damaged output section and power supply has violently blown. I cleaned all that up removed the ps driver board replaced the drivers and the 494. This isn't the first amp that has done this to me. This exact thing. So I used 47ohm gate resistors and 3205's in the power section. Cleaned everything up had a excellent drive signal. So I fitted the 3205's and the amp just flashes in and out of protection.

 

[rhempz01]

Board

 

[RiLoWa]

Others will probably have other suggestions but look for solder bridges and check Q12, Q14, Q11, & Q13.

 

[rhempz01]

Seems like I lost drive I pulled the driver card back out but couldn't find any faults there. Thanks I'll check those out.

 

[Perry Babin]

Post the best photo you can of the PS driver board (assuming that's the one you pulled). Take several photos and post the best.

 

[rhempz01]

Ps driver board

 

[rhempz01]

2

 

[Perry Babin]

I don't know if photos will be enough for me to help but the quality of those was not good enough. If you are going to need help, you need to invest in a camera. You don't need an expensive one. You can likely get one good enough on ebay for $20. The following is from a lowly coolpix 2200 (2MP).
http://www.bcae1.com/repairbasicsforbcae1/images/phototutorial/DSCN5853.JPG

 

[rhempz01]

3

 

[rhempz01]

Perry if this one isn't enough I'll get the camera today, and repost.

 

[Perry Babin]

Too much glare from taking it straight on. Sometimes I have to take 10 photos to get one good enough. Digital film is cheap. Keep taking until you get one as good as possible unless someone else (may have a schematic for this model) can help.

 

[rhempz01]

4

 

[rhempz01]

A

 

[rhempz01]

Maybe better. Outside lighting.

 

[rhempz01]

I was able to find a digital camera a Sony cyber shot 12.1 mega pixels. Little dusty but I'll try that for in the future posts as well

 

[Perry Babin]

See what you can do with the sony.