Sony Alpha NEX-3N Sensor Replacement

Remove the battery and SD card from the bottom of the camera before starting any disassembly. This is not only to keep your image files safe, but to also prevent getting shocked by electronic components inside the camera.

On the right side, remove 1 M1.4x3.7 screw marked with a yellow box.

On the left, remove 3 M1.4x3.7 screws also marked by the yellow boxes.

On the bottom side, remove 5 M1.4x3.7 screws, including 2 in the battery bay. 2 of them are in this photo; you can find them.

Pop open the flash.

In flash area, remove 1 (one) M1.4x3.8 black screw, marked by the blue box.

Remove the LCD hinge cover, by sliding it to the left.

Remove the back cover, which is actually just a plastic frame.

Remove 1 M1.4x2 screw marked by the blue box.

Remove another M1.4x2 screw. (sorry for the angle of the photo!)

Loosen the LCD assembly with caution!

Release the FPC cable, as the connector is a flip type.

The LCD assembly when taken out of the camera.

After unscrew 4pcs screw, you will remove the steel black plate, then slowly pull the black frame there to see the ribbon stripe.

Slowly pull the very fragile ribbon lock, which I marked with the blue boxes. Around just 1mm to unlock the ribbon. Unfortunately, I broke mine.

You can see the ribbon has already pulled out. But be careful with the other 2 ribbons when you try to pull out this one.

The the circle marker that shows others ribbons you need to be careful. Goodluck!

Remove 1 M1.4x2 screw

Lift the keypad.

Detach FPC

Remove 3 M1.4x3.6 black screws, 2 of them out of focus

Slide the flash assembly backwards with caution.

Detach flash FPC by pulling it out of the socket.

Then remove the flash assembly.

Remove that part whatever called, by sliding it backwards.

1 ST1.7x5

2 ST1.7x5

1 M1.4x3.6 black

Remove 2 ST1.7x5 screws from inside the battery bay. (one of them not shown, deeper inside) insert screw driver through a hole in the shielding cover.

Pop the grip off. From back, push to the right, then it flies forward.

Remove 2 M1.4x2 black screws

with caution and patient.

1 M1.4x3.6

Sensor power, flip

Sensor signal, flip

Shutter, pull

Lens contacts, pull. Did I mention that Sony makes world's most brittle FPC?

Whatever, pull

Whatever, pull

Shutter charger motor FPC, (backside, pull out)

Flip the Mainboard up

Pull out one more FPC

Discharge then desolder 4 wires.

Lift main board and plastic frame with flash capacitor.

Detach sensor Power (L)and Signal(R) FPC

Remove 3-4 ST1.7x5 screws

Remove 1 M1.4x5 screw

Remove 4 ST1.7x5 screws for the E-Mount

Remove mount metal ring

Remove mount metal ring

Remove mount plastic ring

remove mount spring ring

Sensor + Shutter assembly comes off

Separate sensor + shutter from another frame

Remove 3 ST1.7x5 screws

Remove sensor shield / heat sink. Sensor PCBA might sticks to the shield, just separate them.