Disassembly of DP1m - TOP PLATE

REMOVAL OF CIRCUIT BOARDS

Next we’ll remove two circuit boards.

The first circuit board is held by three screws: two fine thread pan head silver screws in the corners along the starboard (right) edge, and one coarse thread screw near bottom center of camera. Remove them. Then the big flat circuit board connector data ribbon is lifted up - it comes off with very little pull using your fingernail.

Three screws hold the top circuit board to the camera. Data cable must first come off.

The first circuit board can now be lifted, hinged at the top of the camera by a wide data ribbon cable that is integral to the board. This cable is also integral to the circuit board now exposed: This second board has to come out next.

(Going forward, I replace the screws that I take out back into their threaded holes, after removal of the fastened item - this is a good way for me not to forget which screws go in what holes.)

Screws holding the second circuit board.

I’ll call this second board the SD card reader board, because it is under that big silver cover that the SD card is inserted / connected. Two other data ribbon cables connect to this board. One is the cable that went to the back plate - we can ignore it. The other cable needs to be disconnected. The connector is different on this one, with a little dark brown sliding thing on either end of the array of contacts. Use your small screwdriver to push back on both the little brown sliding things, and the data cable will come free.

Both sides of the SD board connector have a sliding clampy thingie you need to loosen.

As seen above, the SD reader circuit board also has three screws holding it down, two along the top, and another one in the lower left corner. Take these out and set aside. Now the last thing holding this board in place is the USB connector on the right - as it passes through an aperture in the camera body. I used my small flathead screwdriver to get underneath the two left side corners, to get the lift started. The board needs to lift on the left a bit first, then be shifted to the left a bit to allow the USB port to clear on the right, then it comes out. Remember it is connected to the first circuit board via a large integral data ribbon, so you’ll be handling both of them simultaneously, and they both come out as one piece.

The two main boards are out revealing a heat sink plate, easily removed.

Once this pair of boards is out, you’ll see what I think is simply a heat-sink for two processors that are on the bottom of the SD card circuit board. On the heat sink plate are two rectangular foamy bits with a some heat conducting grease on them. This plate comes out easily, after one screw on its left side is removed.

(This is a good time to put back some of the screws recently removed, holding these two circuit boards in place. Some are coarse thread and some are fine, and I swear you’ll get them confused later on, if you don’t replace them now).