My brother dropped his SVD Express a while ago and the button started acting weird; There was no tactile feedback when pressed. It felt as if you were pressing on a board with no give and you just had to watch for the light to know when it's firing. Anyways, looking around I didn't see any videos/forums about how to tear one down like the youtube vids of the eGo's except one thread on a german forum. So if you want to tinker this might be some useful info...
DISCLAIMER: I am not responsible for any damage you might do to your APV. The repair of this device is pretty annoying and requires a fair amount of time and skiill. Make sure you take the battery out befor attempting.
I found out there's two variants of this APV: one with a screw head and one with a pressed-in head w glue. I had the glue in and it would not budge no matter what I tried. I ended up using a dremel with a cutting wheel to cut a groove into the main body tube right under the shiny top ring large enough to fit a flathead screwdriver (see picture for the cut groove). Don't worry about going through; The metal is about 1/16" thick and wouldn't matter if you cut through anyway. Next insert a screwdriver into the groove and hit the back of the screwdriver to push the head off. Once you get it partially off, use the screwdriver in the gap to gently pry off the rest of the head. Be careful so as not to pull of the wire going to the + post of where the tank screws on. There are two plastic rings inside the tube, remove both of them. Then you need to use a small screwdriver to manipulate the main button from the inside so you can remove the circuit boards. Pull the board out gently so you don't rip off the wire going to the '+' battery terminal or the wire soldered to the inside of the tube.
The circuit board is a double stacked assembly with soldered components in between holding the two pieces together. Taking these two apart is a pain that requires a lot of desoldering. The switch is a sufrace mounted tempoary switch that is soldered toward the inside of the bottom board and goes through a hole in the top board.
TBH, this is more of a hassle to repair than anything and you should just go buy yourself a mech mod
DISCLAIMER: I am not responsible for any damage you might do to your APV. The repair of this device is pretty annoying and requires a fair amount of time and skiill. Make sure you take the battery out befor attempting.
I found out there's two variants of this APV: one with a screw head and one with a pressed-in head w glue. I had the glue in and it would not budge no matter what I tried. I ended up using a dremel with a cutting wheel to cut a groove into the main body tube right under the shiny top ring large enough to fit a flathead screwdriver (see picture for the cut groove). Don't worry about going through; The metal is about 1/16" thick and wouldn't matter if you cut through anyway. Next insert a screwdriver into the groove and hit the back of the screwdriver to push the head off. Once you get it partially off, use the screwdriver in the gap to gently pry off the rest of the head. Be careful so as not to pull of the wire going to the + post of where the tank screws on. There are two plastic rings inside the tube, remove both of them. Then you need to use a small screwdriver to manipulate the main button from the inside so you can remove the circuit boards. Pull the board out gently so you don't rip off the wire going to the '+' battery terminal or the wire soldered to the inside of the tube.
The circuit board is a double stacked assembly with soldered components in between holding the two pieces together. Taking these two apart is a pain that requires a lot of desoldering. The switch is a sufrace mounted tempoary switch that is soldered toward the inside of the bottom board and goes through a hole in the top board.
TBH, this is more of a hassle to repair than anything and you should just go buy yourself a mech mod
