Canon PowerShot G1 User manual

SERVICE MANUAL
SERVICE MANUAL
CANON DIGITAL CAMERA
CANON DIGITAL CAMERA
GENERAL INFORMATION
REPAIR INFORMATION
PARTS CATALOG
ELECTRIC DIAGRAMS
MENU
MENU
Digital Imaging Products Service Dept.
Digital Imaging Products Service Dept.
ENGLISH EDITION
ENGLISH EDITION

SERVICE
MANUAL
PowerShot G1 C83-1004

Application
This manual has been issued by Canon Inc. for qualified persons to learn technical theory,
and repair of products. This manual covers all localities where the products are sold. For
this reason, there may be information in this manual that does not apply to your locality.
Corrections
This manual may include typographical errors or technical inaccuracies due to
improvements or changes in the products. When changes occur in applicable products or in
the content of this manual, Canon will release service manual reports as the need arises. In
the event of major changes in the contents of this manual over a long or short period, Canon
may issue new editions of this manual.
The following paragraph does not apply to any countries where such provisions are
inconsistent with local law.
Trademarks
The product names and company names described in this manual are the registered
trademarks of the individual companies.
Copyright
This manual is copyrighted with all rights reserved. Under the copyright laws, this manual
may not be copied, reproduced or translated into another language, in whole or in part,
without the written consent of Canon Inc..
Copyright © 2000 by Canon Inc.
CANON INC.
Digital Imaging Products Service Dept.
30-2, Shimomaruko 3-Chome, Ohta-ku,
Tokyo 146-8501, Japan
First published Oct. 2000

GENERAL
INFORMATION
1 Product Strategy..................................G1
1-1 Background to commerciarize..........G1
1-2 Product Objectives...........................G1
1-3 Product Concept ..............................G2
2 Overview .............................................G4
2-1 Features ..........................................G4
2-2 Design Concept .............................G15
3 Exterior .............................................. G16
3-1 External Photos .............................G16
3-2 6-dimensional Views ......................G17
3-3 Nomenclature and Functions .........G18
4 System ..............................................G20
4-1 Product Diagram ............................G20
4-2 Connection Diagram ......................G21
5 Specifications ....................................G22
5-1 Specifications.................................G22
5-2 System requirements ..................... G27
5-3 Main accessory specifications .......G30
6 Operation Procedures .......................G33
6-1 Operation Procedures.................... G33

G1
1. Product Strategy
1-1 Background to commerciarize
The compact digital camera market got a big break and reached a major plateau with the emergence of 2-megapixel
models. The market is expected to henceforth divide into two major directions: High-end models with more pixels and
more sophisticated features, and popular models with around 2-megapixels and more refined features.
Meanwhile, the top-tier digital camera makers are offering a complete range from low-end to high-end models with short
product cycles. Their blanket strategy hinders Canon from catching up.
In order for Canon to join the top tier (in terms of market share) from the year 2000, it is essential for us to expand our
product line-up in the two directions described above to compete head-to-head with the other makers.
We have to incorporate specifications that would satisfy advanced amateurs such as SLR camera users who demand high
image quality and high-end features and commercial users who require pro-level specs. At the same time, we must in-
crease our market share in the market segment favoring flat-profile and ultra-compact models which have been Canon’s
specialty. In these ways, we must completely fend off rival companies.
Amid this market background, we developed the PowerShot G1, a 3-megapixel, full-featured camera with a 3x zoom lens
and high image quality.
1-2 Product Objectives
The PowerShot G1 has 3 megapixels which is expected to be the top pixel count for compact digital cameras in 2000.
With its high pixel count and many features, the G1 has been designed to be at the top of the high-end group of compact
digital cameras. It is a higher-levelmodel than the PowerShot S20. It is the start of a series of top pixel models to help
secure Canon’s market share in the high-end, compact digital camera market.
Even if the pixel race reaches the 4-megapixel level from 2001, the PowerShot G1 can still serve as the base model for
higher pixel models. This minimizes the development costs of future high-end models.
Canon Company O
Company F
High-pixel,
High-pixel,
zoom model
zoom model
High-pixel,compact,
High-pixel,compact,
singlefocal-length
singlefocal-length
model
model
Medium-pixel,
Medium-pixel,
compact,
compact,
zoom model
zoom model
Medium-pixel,
Medium-pixel,
compact,single
compact,single
focal-length model
focal-length model
High-pixel,
High-pixel,
SLRmodel
SLRmodel
High-pixel,
High-pixel,
zoom model
zoom model
Medium-pixel,
Medium-pixel,
zoom model
zoom model
High-pixel,compact,
High-pixel,compact,
singlefocal-length
singlefocal-length
model
model
Highzoomratio
Highzoomratio
and IS
and IS
Top-pixel and
Top-pixel and
full-featured
full-featured
Ultra-compact
Ultra-compact
Flat-profile with
Flat-profile with
retractable lens,
retractable lens,
stress-free
stress-free
Standard compact model
Medium-pixel,
Medium-pixel,
compact,
compact,
singlefocal-length
singlefocal-length
model
model
High-end model
Special Features
Ultra-compact
PowerShot G1
Low-pixel,
Low-pixel,
compact,single
compact,single
focal-length model
focal-length model

G2
1-3 Product Concept
The PowerShot G1 is the top-of-the-line PowerShot camera standing on the five pillars of full features, high image quality,
operation ease, system accessories and application software. It is a high-end, compact digital camera targeting advanced
amateurs and semi-professionals. (The reference pages are in brackets.)
Full Features
-Manual settings (aperture-priority AE, shutter speed-priority AE, manual focus, manual exposure, flash
exposure compensation, exposure compensation) [New! p.G4]
-12 EOS-based picture-taking modes (Auto, Creative Zone, Image Programmed Control Zone)
[New! p.G5]
-Movie recording and playback with sound [New! p.G6]
-Slow shutter speed mode up to 8 sec. (With noise reduction) [New! p.G6]
-Auto Exposure Bracketing (AEB) [New! p.G6]
-Built-in flash with five control modes [New! p.G6]
-Macro mode allows close-up photography up to 6cm at the wide-angle end, 20cm at telephoto end.
[New! p.G7]
-Wireless controller [New! p.G7]
-AE lock/FE lock
-Center-weighted averaging metering and spot metering
-Digital tele-converter feature (2x/4x)
-Image enlargement during playback (2.5x/5x [New!])
-Continuous shooting (approx. 1.7 images/sec.)
-Self-timer shooting
High Image Quality
-High resolution, 1/1.8-inch CCD with 3.34 million pixels [p.G7]
-High-resolution, 3x zoom lens [New! p.G8]
-Wide range of ISO equivalent settings (Auto/ISO 50/100/200/400 equivalent) [New! p.G8]
-High-precision white balance with five position preset white balance and Custom white
balance function [New! p.G8]
-New RAW mode [p.G9]
-Dedicated digital signal-processing IC for high-precision processing

G3
Operation Ease
-Vari-angle LCD monitor [p.G10]
-New UI for easy-to-read controls (Omni selector, stacked two mode dials, large display panel)
[New! p.G10]
-Switching between picture-taking and playback [New! p.G10]
-Switchable AF mode (Continuous/Single) [New! p.G10]
-Switchable video output format (NTSC/PAL) [New! p.G10]
- Optical viewfinder with dioptric correction [p.G11]
-Shutter-release sound like a film-based camera [New! p.G11]
-Digital signal-processing IC + Buffer memory for stress-free operation [p.G11]
-Higher capacity Li-Ion battery [New! p.G12]
-High-speed fast forward playback
-Compatible with CompactFlash Type II media for high-capacity storage
System Accessories
-Wide converter lens, tele-converter lens, close-up lens [New! p.G12]
-Compatible with EOS-dedicated EX-series Speedlites mode for EOS cameras. [p.G12]
-New power source [New! p.G13]
Application Software
-ZoomBrowser EX 2.4/ImageBrowser 1.4 featuring improved operation ease. [New! p.G13]
-Photorecord 1.2 for easy layout and printing of many pictures. [New! p.G13]
-PhotoStitch 3.1 for creating panoramic pictures. [p.G14]
-RemoteCapture 1.1 for remote picture-taking with a PC. [New! p.G14]
-RS-232C TWAIN Driver 3.4/USB TWAIN Driver 3.4/Plug-in Module 3.4/ZoomBrowser EX 2.4/
ImageBrowser 1.4 for adjusting image quality parameters. [New! p.G14]
-Reputable third-party applications [New! p.G15]
Adobe Photoshop LE 5.0 (Image-editing)
Apple QuickTime 4.1 (Video playback/QVTR file creation)

G4
2. Overview
2-1 Features
[Full Features]
-Manual settings
<Aperture-priority AE and shutter speed-priority AE>
For the exposure control, the PowerShot G1 has the aperture-priority AE and shutter speed-priority AE modes. With
aperture-priority AE, you set the desired aperture and the camera sets the shutter speed automatically to match the subject
brightness. Setting a large aperture increases the background blur which better isolates the subject in the foreground.
Setting a small aperture attains greater depth of field to make subjects both in the foreground and background look sharper.
The farther you zoom in to your subject, the better the background blur. With shutter speed-priority AE, you set the
desired shutter speed and the camera sets the aperture automatically to match the subject brightness. A fast shutter speed
can freeze the subject’s movement, and a slow shutter speed can blur the subject to give the impression of motion.
<Manual focus>
Manual focusing is possible with the PowerShot G1. In sports or wildlife photography, you can set a specific focusing
distance previously and take the shot when the subject comes into focus.
Manual focus is also effective when autofocusing is not possible in the following cases:
-Extremely low-contrast subjects
-Near and far objects overlaid at the same position
-Severe backlit conditions or highly reflective surfaces
-Extremely bright objects ata the center of the composition
-Very low-light scenes
The focal point can be moved manually by holding down the MF button and pressing the Omni Selector. The MF indicator
is shown on the LCD monitor as a reference for the focal range.
Fig.2-1 MF indicator
MF indicator