Canon Powershot Sd850 Is Motherboard Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          30 - 40 minutes

Sections

Battery
2 steps
Case
6 steps
LCD Screen
6 steps
Flash Unit
5 steps
Camera Lens
3 steps
Motherboard
9 steps

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Introduction

What you need

Step 1

              Battery

Slide the light grey tab toward the edge of the camera using your fingernail.
Pull the light grey tab up to open the door.
These photos do not show the camera’s memory card or battery, which should be visible inside.

Slide the light grey tab toward the edge of the camera using your fingernail.

Pull the light grey tab up to open the door.

These photos do not show the camera’s memory card or battery, which should be visible inside.

1024

Step 2

Slide the small brown tab toward the edge of the camera using your fingernail.
Let go of the brown tab when the battery pops up.
Grab battery and pull straight up to remove from holder.
When inserting the battery, orient it so that the terminals connect.

Slide the small brown tab toward the edge of the camera using your fingernail.

Let go of the brown tab when the battery pops up.

Grab battery and pull straight up to remove from holder.

When inserting the battery, orient it so that the terminals connect.

Step 3

              Case

Remove the following 4 screws:
Two 2.8 mm Phillips #00 at the bottom of the camera.
Two 2.75 mm Phillips #00 on the opposite side of the wrist strap.

Remove the following 4 screws:

Two 2.8 mm Phillips #00 at the bottom of the camera.

Two 2.75 mm Phillips #00 on the opposite side of the wrist strap.

Step 4

Open the A/V OUT DIGITAL flap on the side of the wrist strap.
Remove the 2.75 mm Phillips #00 under the A/V OUT DIGITAL flap on the side of the wrist strap.

Open the A/V OUT DIGITAL flap on the side of the wrist strap.

Remove the 2.75 mm Phillips #00 under the A/V OUT DIGITAL flap on the side of the wrist strap.

Step 5

On the bottom of the camera, use your fingernail to slide the light gray tab towards the edge of the camera.
Slide light gray door and pull up to open the door.
Remove the 8.35 mm Phillips #00 next to the brown tab that holds the battery.

On the bottom of the camera, use your fingernail to slide the light gray tab towards the edge of the camera.

Slide light gray door and pull up to open the door.

Remove the 8.35 mm Phillips #00 next to the brown tab that holds the battery.

Step 6

Gently pull the front cover straight out from the camera. This will expose the wiring on the front of the camera.

Gently pull the front cover straight out from the camera. This will expose the wiring on the front of the camera.

Step 7

Remove the 2.75 mm Phillips #00 next to A/V OUT DIGITAL.

Remove the 2.75 mm Phillips #00 next to A/V OUT DIGITAL.

Step 8

Slide the back casing (with the screen protector) off to reveal the LCD and back wiring.

Slide the back casing (with the screen protector) off to reveal the LCD and back wiring.

Step 9

              LCD Screen

Remove the 1.75 mm Phillips #00 located at the top left of the LCD screen.

Remove the 1.75 mm Phillips #00 located at the top left of the LCD screen.

Step 10

Remove the two 3.4 mm Phillips #00 located at the bottom of the camera.

Remove the two 3.4 mm Phillips #00 located at the bottom of the camera.

Step 11

Remove the two metal frames that hold the LCD panel in place.

Remove the two metal frames that hold the LCD panel in place.

Step 12

The LCD screen should now only be attached by two LCD data cables.
Lift the screen from the left side and use a spudger or a small flat head screwdriver to flip the black portion of the connector upward to unlock it.
Carefully slide the data cable out of the connector.

The LCD screen should now only be attached by two LCD data cables.

Lift the screen from the left side and use a spudger or a small flat head screwdriver to flip the black portion of the connector upward to unlock it.

Carefully slide the data cable out of the connector.

Step 13

The LCD should still be connected by the backlight cable.
To remove the backlight cable, use a spudger or a small flat head screwdriver to unlock the backlight cable.
Carefully slide out the backlight cable.
The LCD screen can now be fully detached from the camera body.

The LCD should still be connected by the backlight cable.

To remove the backlight cable, use a spudger or a small flat head screwdriver to unlock the backlight cable.

Carefully slide out the backlight cable.

The LCD screen can now be fully detached from the camera body.

Step 14

The LCD screen and housing are now in three pieces:
LCD screen
LCD screen frame
LCD back housing
The LCD screen itself can now be removed and fixed/replaced.

The LCD screen and housing are now in three pieces:

LCD screen

LCD screen frame

LCD back housing

The LCD screen itself can now be removed and fixed/replaced.

Step 15

              Flash Unit

Remove the 1.85 mm #00 Phillips located on the left side of the camera.

Remove the 1.85 mm #00 Phillips located on the left side of the camera.

Step 16

Use a set of tweezers to remove the speaker located at the top of the camera on the flash unit.
Next use the tweezers to carefully remove the speaker cable off its respective holders.

Use a set of tweezers to remove the speaker located at the top of the camera on the flash unit.

Next use the tweezers to carefully remove the speaker cable off its respective holders.

Step 17

Use a spudger or a flathead screwdriver to remove the camera lens cable located in the front of the camera.

Use a spudger or a flathead screwdriver to remove the camera lens cable located in the front of the camera.

Step 18

Use a spudger or a flathead screwdriver and carefully pry out the first flash cable from the bottom of the cable. The white 2 prong power cable pops UP (use spudger below red/black insertion and put upward pressure). For the yellow one, apply pressure horizontally.
Next use a spudger or a flathead screwdriver and carefully pry out the second flash cable.

Use a spudger or a flathead screwdriver and carefully pry out the first flash cable from the bottom of the cable. The white 2 prong power cable pops UP (use spudger below red/black insertion and put upward pressure). For the yellow one, apply pressure horizontally.

Next use a spudger or a flathead screwdriver and carefully pry out the second flash cable.

Step 19

Gently remove the flash component from the rest of the camera.
Use a spudger or a flathead screwdriver and carefully pry off the plastic piece on top of the flash unit.
The flash unit can now be removed and replaced.
Be careful not to touch the capacitor attached to the flash unit as it may still be holding a charge!

Gently remove the flash component from the rest of the camera.

Use a spudger or a flathead screwdriver and carefully pry off the plastic piece on top of the flash unit.

The flash unit can now be removed and replaced.

Be careful not to touch the capacitor attached to the flash unit as it may still be holding a charge!

Step 20

              Camera Lens

Remove four screws located on the back of the camera:
6.15 mm #00 Phillips
2.75 mm #00 Phillips
2.15 mm #00 Phillips
2.7 mm #00 Phillips

Remove four screws located on the back of the camera:

6.15 mm #00 Phillips

2.75 mm #00 Phillips

2.15 mm #00 Phillips

2.7 mm #00 Phillips

Step 21

Use a spudger or a flathead screwdriver and carefully pry out the bulb located in the front of the camera on top of the camera lens.

Use a spudger or a flathead screwdriver and carefully pry out the bulb located in the front of the camera on top of the camera lens.

Step 22

Gently remove the camera lens from the rest of the camera.

Gently remove the camera lens from the rest of the camera.

Step 23

              Motherboard

Remove the 2.6 mm Phillips #00 located near the shutter release button.

Remove the 2.6 mm Phillips #00 located near the shutter release button.

Step 24

Use a prying device or your fingers to release the ribbon from its holder.
Gently remove the shutter release component from the camera.

Use a prying device or your fingers to release the ribbon from its holder.

Gently remove the shutter release component from the camera.

Step 25

Remove the 3.4 mm Phillips #00 located under the camera.
Next use a prying device or your fingers to release the power trigger cable from its holder.

Remove the 3.4 mm Phillips #00 located under the camera.

Next use a prying device or your fingers to release the power trigger cable from its holder.

Step 26

Use a prying device or your fingers to release the ribbon from their respective holders located at the top of the camera.

Use a prying device or your fingers to release the ribbon from their respective holders located at the top of the camera.

Step 27

Use a spudger or a flathead screwdriver to unlock the ribbon located at the back of the camera.
Then gently slide out the ribbon.

Use a spudger or a flathead screwdriver to unlock the ribbon located at the back of the camera.

Then gently slide out the ribbon.

Step 28

The whole ribbon and metal casing can now be easily removed from the remains of the camera.

The whole ribbon and metal casing can now be easily removed from the remains of the camera.

Step 29

Use a spudger or a flathead screwdriver to release the motherboard cable.

Use a spudger or a flathead screwdriver to release the motherboard cable.

Step 30

Next remove the 3.4 mm Phillips #00 located in front of the camera. wisdom here.

Next remove the 3.4 mm Phillips #00 located in front of the camera. wisdom here.

Step 31

Now the motherboard can be gently removed from the metal casing.

Now the motherboard can be gently removed from the metal casing.

To reassemble your device, follow these instructions in reverse order.

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Author

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                    Peter Tran

Member since: 10/06/2010

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Team

                       Cal Poly, Team 20-7, Maness Fall 2010                        

                                                  Member of Cal Poly, Team 20-7, Maness Fall 2010 



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