Canon PowerShot 350 Service Manual - Page 16

Functions, Operations

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Part 1: General Information 2.4 FUNCTIONS AND OPERATIONS To conserve power, the power supply shuts off under the following conditions: 1) Record Mode: When there is no switch input for one minute. (Using either Battery or AC Adaptor) 2) Playback Mode: When there is no switch input for two minutes. (Using battery only- not valid with AC Adaptor) 3) Power On Mode: When the CF card is removed. 4) Low Battery Indication: Power goes off approximately five seconds after "Low Battery" mark starts flashing. Recording Mode File Size Exposu res/Card(M in.) Economy 40Kb 47 Normal 80Kb 23 Fine 160Kb 11 The storage space required for one exposure is the combination of the space required for the Main Picture File, and the Thumbnail, or preview file. 1) Main Picture File 640 x 480 pixels (VGA) compressed using JPEG compression 2) Thumbnail File 80 x 60 (VGA reduced to 1/8 original size) and compressed using JPEG compression The actual size of each varies depending on the content. The "Remaining Image" counter indication is determined by the unused space on the flash memory and the mode selected for the next shot. Depending on the actual content more images than indicated may be possible. 1) Install a CF card with open memory, set the Record mode and turn on the power switch. The Busy/Power lamp will light red. (When the power is first turned on, the LCD remains black for about three seconds to allow circuits to stabilize.) 2) When the shutter button is pressed to make an exposure, this sequence occurs: The Busy lamp flashes red at 2Hz, the viewfinder screen goes blank for about seven seconds, the exposure just made is displayed for about three seconds, and then the Busy lamp returns to steady red and the viewfinder screen returns. • If the Power switch is turned off, the power will go off only after the sequence is finished. • During the sequence all indications on the LCD go off. • If the flash is not properly charged, the flash mark on the LCD will flash and the shutter will not release. 1-6

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Part
1:
General
Information
2.4
FUNCTIONS
AND
OPERATIONS
<Auto
Power
-Off>
To
conserve
power,
the
power
supply
shuts
off
under
the
following
conditions:
1)
Record
Mode:
2)
Playback
Mode:
3)
Power
On
Mode:
When
there
is
no
switch
input
for
one
minute.
(Using
either
Battery
or
AC
Adaptor)
When
there
is
no
switch
input
for
two
minutes.
(Using
bat-
tery
only-
not
valid
with
AC
Adaptor)
When
the
CF
card
is
removed.
4)
Low
Battery
Indication:
Power
goes
off
approximately
five
seconds
after
"Low
Battery"
mark
starts
fl
ashing.
<Recording
Capacity
(with
2MB
CF
Card)>
Recording
Mode
Economy
Normal
Fine
File
Size
40Kb
80Kb
160Kb
Expos
u
res/Card(M
in.)
47
23
11
The
storage
space
required
for
one
exposure
is
the
combination
of
the
space
required
for
the
Main
Picture
File,
and
the
Thumbnail,
or
preview
file.
1)
Main
Picture
File
640
x
480
pixels
(VGA)
compressed
using
JPEG
compression
2)
Thumbnail
File
80
x
60
(VGA
reduced
to
1/8
original
size)
and
compressed
using
JPEG
compression
The
actual
size
of
each
varies
depending
on
the
content.
The
"Remaining
Image"
counter
indication
is
determined
by
the
unused
space
on
the
fl
ash
memory
and
the
mode
select-
ed
for
the
next
shot.
Depending
on
the
actual
content
more
images
than
indicated
may
be
possible.
<Basic
Operation>
1)
Install
a
CF
card
with
open
memory,
set
the
Record
mode
and
turn
on
the
power
switch.
The
Busy/Power
lamp
will
light
red.
(When
the
power
is
first
turned
on,
the
LCD
remains
black
for
about
three
seconds
to
allow
circuits
to
stabilize.)
2)
When
the
shutter
button
is
pressed
to
make
an
exposure,
this
sequence
occurs:
The
Busy
lamp
fl
ashes
red
at
2Hz,
the
viewfinder
screen
goes
blank
for
about
seven
sec-
onds,
the
exposure
just
made
is
displayed
for
about
three
seconds,
and
then
the
Busy
lamp
returns
to
steady
red
and
the
viewfinder
screen
returns.
•
If
the
Power
switch
is
turned
off,
the
power
will
go
off
only
after
the
sequence
is
fin-
ished.
•
During
the
sequence
all
indications
on
the
LCD
go
off.
•
If
the
fl
ash
is
not
properly
charged,
the
fl
ash
mark
on
the
LCD
will
fl
ash
and
the
shutter
will
not
release.
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