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CHAPTER 2. TECHNICAL DESCRIPTION
1. Functions of each unit
1.1 MAIN PCB ASS’Y
1) Driving the CCD Sensor.
2) Conversion of the image signal from the analog signal to the digital signal.
3) Controlling the power supply and the system by CPU. (Refer to Sections 2.1 and 2.2.)
4) Image processing, and reading and writing the image signal to and from the CF card using DSP.
(Refer to Section 2.2.2.)
5) Video output. (Refer to Section 2.2.2.)
6) Microphone input and sound output. (Refer to Section 2.2.3.)
1.2 DC/DC CONVERTER PCB ASS’Y
1) Power supply drive (DC/DC converter).
2) Battery charging control circuit.
1.3 LCD PCB ASS’Y
1) Image display.
2) Backlight for LCD drive.
1.4 TOP MODULE UNIT
1) Operation switch, operation display and finder LED.
1.5 EF FPC
1) Flash control.
1.6 STJ PCB ASS’Y
1) Flash drive and charging circuit for the flash.
Fig. 1
TOP MODULE UNIT
LCD PCB ASS'Y
BUTTON PCB ASS'Y
FLASH UNIT
DC/DC CONVERTER PCB ASS'Y
MAIN PCB ASS'Y
Summary of Contents for PowerShot G3
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Page 35: ...1 29 3 2 6 dimensional Diagram 69 9 2 75 43 5 1 71 122 0 4 80 71 7 2 82 73 9 2 91 121 0 4 76 ...
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Page 135: ...PowerShot G3 Pg2 INTERNAL PARTS SECTION 1 See Pg3 See Pg5 8 8 7 1 2 3 4 9 7 10 8 11 5 6 N S ...
Page 139: ...PowerShot G3 Pg4 TOP COVER SECTION 17 15 16 1 3 7 2 4 5 6 8 15 9 10 11 12 13 14 ...
Page 141: ...PowerShot G3 Pg5 EVF UNIT SECTION 1 10 2 5 3 7 12 11 12 4 6 8 13 9 a b a d c b d c ...
Page 143: ...PowerShot G3 Pg6 BATTERY BOX UNIT SECTION 8 4 8 2 3 7 1 5 8 8 8 6 ...
Page 145: ...PowerShot G3 Pg7 Fuse 2 1 DC DC CONVERTER PCB ASS Y ...
Page 156: ......
Page 170: ...C CANON INC 2002 01 NOVEMBER 2002 3 4 HV MODULE UNIT ...
Page 171: ...C CANON INC 2002 01 NOVEMBER 2002 3 5 TOP MODULE UNIT ...
Page 172: ...C CANON INC 2002 01 NOVEMBER 2002 3 6 LCD PCB ASS Y ...
Page 173: ...C CANON INC 2002 01 NOVEMBER 2002 3 7 OPTICAL FLX ...
Page 174: ...C CANON INC 2002 01 NOVEMBER 2002 3 8 EF FLX ...
Page 175: ...C CANON INC 2002 01 NOVEMBER 2002 3 9 R_EN FLX ...
Page 178: ...PowerShot G3 Auto Focus Chart 1 ...
Page 179: ...Dimensions 1 107 1mm 79 1mm Dimensions 1 ...
Page 180: ...PowerShot G3 Auto Focus Chart 2 ...
Page 181: ...Dimensions 2 278 46mm 207 66mm ...
Page 182: ...PowerShot G3 Auto Focus Chart 1 ...
Page 183: ...Dimensions 1 107 1mm 79 1mm Dimensions 1 ...
Page 184: ...PowerShot G3 Auto Focus Chart 2 ...
Page 185: ...Dimensions 2 278 46mm 207 66mm ...