zapco amp blowing fuses

i have a zapco AG200. every time i connect the 12v the fuse blows instantly. i do have a DMM and i am pretty good at soldering and replacing parts in small electronics. i just dont have much knowledge how to properly troubleshoot the amp or even have knowledge about what it could possibly be thats wrong. there are no amp repair shops near me.  my only option is sending it to zapco but they want $70 just to look at it. thats insane, im sure my shipping on top of that will be about $20. can someone help me out by putting me in the right direction or point out what i should test and how. THANK YOU VERY MUCH IN ADVANCED.

http://ampguts.com/gallery/showphoto.php?photo=8216&title=zapco-ag-200-inside&cat=2073

http://www.justrepairs.com/main.html  They offer free repair estimates & have a very good reputation . Prices are reasonable too .

I can not make heads or tails out of the above.  With only the power and ground connections connected, does it blow the fuse?

The 6 clamps to the right of the picture hold the 4 power supply transistors along with the 2 rectifier diodes.

Do not unsolder anything until we determine if the parts are bad. 

im sorry, just read what i replied and my wording really was confusing.

on the terminals for power. 12V - REMOTE- GROUND

this is whats happening.

step 1. i connect GROUND = everything ok

step 2. then i connect the REMOTE wire= everything is ok

step 3. connect 8AWG 12v constant power= POP FUSE IMMEDIATLY BLOWS.

@ i am an idiot - "With only the power and ground connections connected, does it blow the fuse?" - Answer: Yes

@ dodgeram10 - thanks ill look into that too

When I say power and ground, I mean only the 2 wires.  The big power wire and the big ground wire.  You stated that you connected the remote wire second in that order.  I need to know with only 2 wires connected, does it blow the fuse. 

@ i am an idiot - i did what you asked, only 2 big power cables. yes it did blow

@DYohn - thanks. im sure this is a stupid question. but ther is only 1 power supply correct?

is it possible to test a power supply w DMM how would i test it?, i dont even know which one the power supply is. i feel stupid asking this question cuz i am familiar with electrical components (capacitors, diods, transistors, resistors, potentiomenters...) but i have no idea what the power supply looks like and ther for dont know wher it is located on this amp.