Canon PowerShot A300 Service Manual page 12

CHAPTER 3. REPAIR INSTRUCTION
CONTENTS
1. Before Starting the Repair Work ------------------------------------------------------------------------------------------------ 3-1
1.1 Precaution on Flash High Tension Circuit ------------------------------------------------------------------------------- 3-1
1.2 List of Tools ----------------------------------------------------------------------------------------------------------------- 3-1
1.3 List of Supplies -------------------------------------------------------------------------------------------------------------- 3-1
1.4 Flexible Connectors --------------------------------------------------------------------------------------------------------- 3-2
2. Disassembly/Assembly ----------------------------------------------------------------------------------------------------------- 3-3
2.1 Procedure --------------------------------------------------------------------------------------------------------------------- 3-3
2.2 REAR COVER UNIT, STRAP PLATE, LCD WINDOW ------------------------------------------------------------ 3-4
2.3 BACK LIGHT UNIT, LCD PANEL ------------------------------------------------------------------------------------- 3-5
2.4 BATTERY COVER -------------------------------------------------------------------------------------------------------- 3-6
2.5 FRONT COVER UNIT, CF COVER, BATTERY COVER SPRING ---------------------------------------------- 3-7
2.6 MICROPHONE, MICROPHONE BUSH ------------------------------------------------------------------------------- 3-8
2.7 MAIN PCB ASS'Y-(1) ----------------------------------------------------------------------------------------------------- 3-9
2.8 MAIN PCB ASS'Y-(2) --------------------------------------------------------------------------------------------------- 3-10
2.9 MAIN PCB ASS'Y-(3) --------------------------------------------------------------------------------------------------- 3-11
2.10 FLASH UNIT --------------------------------------------------------------------------------------------------------------3-12
2.11 M-S FPC ------------------------------------------------------------------------------------------------------------------- 3-13
2.12 RLS PCB ASS'Y ----------------------------------------------------------------------------------------------------------3-14
2-13 BATTERY (-) CONTACT, BATTERY (+) CONTACT ----------------------------------------------------------- 3-15
2.14 ELECT. CAPACITOR ---------------------------------------------------------------------------------------------------3-16
2.15 OPTICAL UNIT-(1) ------------------------------------------------------------------------------------------------------3-17
2.16 OPTICAL UNIT-(2) ------------------------------------------------------------------------------------------------------3-18
2.17 BATTERY LOCK PLATE, BATTERY LOCKER ------------------------------------------------------------------3-19
2.18 LITHIUM (+) CONTACT, LITHIUM (-) CONTACT ------------------------------------------------------------- 3-20
2.19 Screw List ----------------------------------------------------------------------------------------------------------------- 3-21
3. Adjustments -----------------------------------------------------------------------------------------------------------------------3-22
3.1 Replacement Parts and Adjustment Items ----------------------------------------------------------------------------- 3-22
3.2 Adjustment Tools ----------------------------------------------------------------------------------------------------------3-23
3.3 Before Starting Electrical Adjustments ---------------------------------------------------------------------------------3-24
3.3.1 TWAIN Driver Installation --------------------------------------------------------------------------------------3-24
3.3.2 Factory Mode Driver Installation -------------------------------------------------------------------------------3-24
3.3.3 Adjustment Software Installation -------------------------------------------------------------------------------3-26
3.3.4 Preparation -------------------------------------------------------------------------------------------------------- 3-27
3.3.5 Starting up the Adjustment Software ---------------------------------------------------------------------------3-28
3.3.6 Menu Window -----------------------------------------------------------------------------------------------------3-28
3.3.7 How to Use the Adjustment Software -------------------------------------------------------------------------3-28
3.4 Calibration ----------------------------------------------------------------------------------------------------------------- 3-29
3.4.1 Calibration -------------------------------------------------------------------------------------------------------- 3-29
3.5 Adjustment Procedure -----------------------------------------------------------------------------------------------------3-34
3.5.1 CCD Adjustment ------------------------------------------------------------------------------------------------- 3-34
3.5.2 Optical Unit Adjustment ---------------------------------------------------------------------------------------- 3-36
3.5.3 Imaging Process Adjustment ------------------------------------------------------------------------------------3-38
3.5.4 Color Adjustment -------------------------------------------------------------------------------------------------3-41
3.5.5 Pixel Dot Adjustment --------------------------------------------------------------------------------------------3-43
3.5.6 Flash Adjustment -------------------------------------------------------------------------------------------------3-45
3.5.7 Checking of sound recording/output ---------------------------------------------------------------------------3-47