Toshiba IK-M40A User manual
SERVICE
DATA
FILE
NO.
410
-
001
CCD
COLOR
CAMERA
|
Model
IK-M40A
SERVICE
MANUAL
PRINTED
IN
JAPAN
Mar.
1991
(S)
CONTENTS
SECTION
1
GENERAL
DESCRIPTION
.......
1
SECTION
2
MAIN
SPECIFICATIONS
........1
SECTION
3
ELECTRICAL
ADJUSTMENT
PROCEDURES
..........--+-+2+22
1.
Preparation
before
Adjustment
and
Check
Items
..........ccccscscsscsccsecssecensssssessesons
2
1-1.
Before
Adjustment
............-+eeeeeeee
2
1-2.
Equipment
Required
..............++.6++-
2
1-3.
Preparation
.........cce
cece
ees
e
seen
eee
2
2.
FIOW
Cart
...sscrcssesscssssoseccsocensonsccecsosssenscssorss
3
3.
Adjustment
Procedures
.........ecsresesreeerees
4
3-1.
Initial
Setting
........
cece
eee
e
eee
cece
4
3-2.
VOFD
Adjustment
........-..e
ec
eeeeeees
4
3-3.
Input
Level
Adjustment.......
serie
tieeie
oe
4
3-4.
VAP
Adjustment
.....
ChE
SERA
Ree
awewelee
4
3-5.
YT
Setting
........
cece
cece
cece
ee
eee
eens
5
3-6.
R
Matrix
Adjustment
..............seee05
5
3-7.
B
Matrix
Adjustment
............-..s008-
6
3-8.
CIIR
Level
Adjustment
...........---056.
6
3-9.
Burst
Level
Adjustment
...........ese06-
6
3-10.
W.B.
Adjustment
.........
5.
cece
eee
eee
6
3-11.
White
Clip
Adjustment
............-+--
7
3-12.
AWB1
Adjustment
...........eeeeeee
eens
7
3-13.
AWB2
Adjustment
...........eeeeeeeeees
7
3-14.
AWB3
Adjustment
........
cece
essen
eee
7
3-15.
AGC
Adjustment
........
cece
ee
sees
eens
7
3-16.
Shutter
Operation
Adjustment
...........-
8
3-17.
External
Sync
Check
........
ees
eeeeeeeee
8
3-18.
30m
Cable
Picture
Quality
Check
..........
8
3-19.
Fimal
Check
......
ccc
ccc
c
cece
eee
eeceeens
9
SECTION
3
SERVICING
DIAGRAM
.........10
1.
BLOCK
DIAGRAMS
AND
CIRCUITS..
10
1-1.
Wiring
Diagram
........
2
dua
taieeeoeess
10
1-2.
CCU
Block
Diagram
.........-seeeeeees
12
1-3.
Rear
1
Circuit
Diagram
......
pe
eens
Ss
14
1-4.
Camera
Head
Block
Diagram
......+++-+>
14
1-5.
Front
Circuit
Diagram
........--+++eeeeee
5
1-6.
Commector
........
cece
e
ese
e
cece
ceeers
15
1-7.
Mother
Circuit
Diagram
......---e+e+ee>
16
1-8.
Main
1
SG1
Circuit
Diagram
........----
17
1-9.
Main
2
SG2
Circuit
Diagram
......-+-++>
20
1-10.
Main
3
Pre
Amp
Circuit
Diagram
.....---
23
1-11.
Main
4
AWB
Circuit
Diagram
......+-+--
26
1-12.
Video
Circuit
Diagram
..........eeeeeees
29
1-13.
Driver
Circuit
Diagram
........6ee+eeee-
32
1-14.
Mead
FPC
Circuit
Diagram
.....---+++6++
34
1-15.
Rear
2
Circuit
Diagram
........+6e+eeee
36
2.
PRINTED
CIRCUIT
BOARD...........
soe
dD
2-1.
Rear
1
PC
Board
........6...
ee
eeee
cress
38
2-2.
Wead
Unit
PC
Board
.........eeseeerers
38
2-3.
Front
PC
Board
........eeee
ee
eeeeecees
38
2-4.
Connector
PC
Board
........eeeeeeeeres
38
2-5.
Mother
PC
Board
..........-¢
esse
2.38
2-6.
Main
PC
Board
........seeeee
cece
ereees
39
2-7.
Video
PC
Board
........eeee
ee
erccececs
40
2-8.
Rear
2
PC
Board
........
cece
ener
eens
40
2-9.
FPC
PC
Board
......ccceeeeeeeeees
oe
Al
SECTION
5
EXPLODED
VIEWS
AND
PARTS
LIST
.......--+++-+-
42
1.
EXPLODED
VIEWS......ccssscssoosreees
nenensie
a
1-1.
Unit
Assembly
.........
5c
ee
cee
rene eens
43
1-2.
Camera
Head
Assembly
......---++eeeee>
44
1-3.
Packing
Assembly
.........2+-seeeeeeees
45
2.
PARTS
LIST.
........ccssscccssccrresssnererenecessnnses
46
SECTION
1
GENERAL
DESCRIPTION
The
CCD
camera
IK-M40A
is
a
color
camera
which
has
To
obtain
full
performance
of
CCD
characteristics,
the
an
ultra
compact
sized
camera
head.
camera
head
and
the
camera
control
unit
have
been
A
1/2
inch
type
CCD
consisting
of
total
pixel
of
410,000
adjusted
in
the
pair.
So,
when
making
a
service
which
is
used
as
an
image
element
and
it
provides
horizontal
requires
readjustment,
always
perform
the
adjustment
in
resolution
of
higher
than
460
TV
lines.
that
pair.
SECTION
2
MAIN
SPECIFICATIONS
Power
supply
[Semnggean
[
Seanfrequency
|
15.734
i,
V
5994
He
DC
12V
+
0.5V
1/2",
CCD
image
sensor,
effective
pixels
768H
x
494V
6.54
x
4.89mm
(1/2
inch
type)
Internal/external,
automatic
switching
Resolution
___|
A:
More
than
460
lines,
V:
More
than
350
lines
Minimum
intensity
of
illumination
for
objects
VBS
1.0
Vp-p
(BNC
terminal),
NTSC
system,
‘Video
output
Y/C
separation
output
(S
terminal)
Output
impedance
Input
VBS
L.0
Vp-p
(BNC
terminal),
75
ohms
unbalanced
External
sync
Adjustment
function
|
Subcarrier
phase,
I]
phase
White
balance
Front
switch
Rear
switch
Auto/push
to
set/
manual
SENS
UP
(+6
dBs)/ON/OFF
1/60,
1/100,
and
high
speed
shutter
selectable
Selectable
one
of
seven:1/125,
1/250,
1/500,
1/1000,
1/2000,
1/4000,
1/10000
—-10°C
—
40°C/less
than
90%
Electronic
shutter
Environmental
temperature/humidity
Camera
head
0.56
oz
(without
lens)
Camera
control
1.37
Ibs
Weight
f=3mm,
4mm,
7.5mm,
15mm,
24mm
Camera
cable
2m,
5m,
10m,
15m,
20m,
30m
SECTION
3
ELECTRICAL
ADJUSTMENT
PROCEDURES
1.
Preparation
before
Adjustment
and
Check
Items
1-1.
Before
Adjustment
The
Adjustment
procedures
in
this
manual
should
be
used
only
when
some
electrical
components
are
replaced
and
related
electrical
adjustments
are
needed.
When
some
failures
occur,
always
locate
the
failures
using
measurement
equipments
and
perform
repairing
,
replacing,
and
then
make
required
adjustments.
Do
not
try
to
make
any
adjustment
before
you
do
not
find
the
location(s).
Moreover,
some
of
failures
may
not
require
readjustment,
so
always
perform
the
adjustment
as
required.
1-2.
Equipment
Required
1.
Oscilloscope
5mV/div.,
2
channels
2.
Color
video
monitor
3.
Lighting
Halogen
lamp
(SOOW)
x
2
Note:
If
unevenness
illumination
exists
on
the
pattern
surface,
correct
adjustment
will
not
be
performed,
so
adjust
lighting
devices
until
flat
illum
ination
is
obtained.
4,
Camera
adjustment
chart
Color
bar
chart
70909322
Gray
scale
chart
70909321
Note:
-
Use
new
test
charts
without
dirt
5.
Adjustment
drivers
6.
Color
temperature
conversion
filter
(C16)
7.
Tripod,
lens,
and
AC
adapter
(or
DC12V
power
supply)
8.
Connection
cables
(video
cable,
S
terminal
cable)
9.
Vector
scope
1-3.
Preparation
1.
Place
the
chart
at
a
position
of
about
50cm
in
front
of
the
camera,
and
adjust
light
positions
so
that
flat
illumination
is
obtained
at
the
test
chart.
2.
Connect
the
video
output
signal
to
the
monitor
and
terminate
it
with
a
75
ohm
resistor.
3.
Set
switches
on
the
CCU
(Camera
Control
Unit)
as
follows:
¢
Front
panel
POWER
WHITE
BALANCE
FULL
AUTO
AGC
OFf
Note:
Perform
the
adjustment
in
a
place
free
from
dusts,
rubbish,
etc.
so
that
the
camera
head
is
free
from
dirty.
¢
Rear
panel
SHUTTER
4,
How
to
open
CCU
1)
Disconnect
all
cables
connected
to
the
CCU.
2)
Remove
three
screws
on
bottom
of
the
CCU.
3)
Pull
out
the
cover
by
sliding
it
in
the
direction
A
shown.
2.
Flow
Chart
The
adjustment
procedures
given
in
this
manual
are
described
in
the
order
required
to
perform
all
items.
In
practical
field,
perform
only
the
items
required
according
to
the
servicing
carried
out.
ONAAMWRWNE
.
Initial
setting
.
VOFD
Adjustment
.
Input
level
Adjustment
VAP
Adjustment
.
YH
Adjustment
.
R
matrix
Adjustment
.
B
matrix
Adjustment
.
CHR
level
Adjustment
.
Burst
level
Adjustment
.
WB
Adjustment
.
White
clip
Adjustment
.
AWB1
Adjustment
.
AWB2
Adjustment
.
AWB3
Adjustment
.
AGC
check
.
Shutter
operation
check
.
External
sync
check
.
30m
cable
picture
quality
check
.
Final
check
TP22
TP32
e)
e)
Main
P.C.
Board
Video
P.C.
Board
3.
Adjustment
Procedures
3-1.
Initial
Setting
Adjusting
point:
RV41,
RV42
1..
Set
front
switches
as
follows:
POWER
WHITE
BALANCE
GAIN
SHUTTER
FULL
AUTO
2.
Turn
RV4i
clockwise
and
RV42
fully
counter
clockwise.
3.
Check
to
see
POWER
LED
is
turned
on.
Check
to
see
AWB
LED
is
turned
on.
3-2.
VOFD
Adjustment
Test
point:
Q202
emitter
Test
equipment:
Oscilloscope
Adjusting
point:
RV32
1.
Shoot
the
gray
scale
to
fill
whole
screen.
Open
the
lens
aperture
to
maximum
so
that
saturation
occurs
sufficiently.
2.
Adjust
RV32
until
emitter
output
of
transistor
Q202
shows
1000mV
+
50mV.
eT
i
ii
VN
3-3.
Input
Level
Adjustment
Test
point:
TPS1,
TPS2
Test
equipment:
Oscilloscope
Adjusting
point:
Lens
aperture,
RV21
1000
+50mvV
1.
Shoot
the
gray
scale
to
fill
whole
screen
and
adjust
lens
aperture
until
waveform
at
TP51
shows
450
mVp-p.
3-4.
VAP
Adjustment
Test
point:
TP56
Test
equipment:
Oscilloscope
Adjusting
point:
RVS1,
RV52
1.
Shoot
the
gray
scale
to
fill
whole
screen.
Check
amplitude
of
waveform
at
TP56
is
minimum.
(If
not,
perform
following
steps.)
2.
Turn
RV51
fully
clockwise
and
adjust
RV52
so
that
waveform
amplitude
at
TP56
shows
minimum.
3.
Turn
RV51
counter
clockwise
and
then
the
waveform
will
appear
again.
Further
turning
in
counter
clockwise
direction
decreases
the
amplitude.
Fix
the
adjustment
at
the
minimum
position.
3-5.
YH
Setting
Test
point:
TP51,
TPS7
Test
equipment:
Oscilloscope
Adjusting
point:
RV92,
RV62
1.
2:
Remove
the
lens
cap
and
adjust
RV92
(M.PED)
until
pedestal
level
at
TP57
shows
50
mVp-p.
Shoot
the
gray
scale
to
fill
whole
screen.
Adjust
lens
aperture
until
waveform
level
of
450
mVp-p
is
obtained
at
TP51.
.
Adjust
RV62
so
that
white
part
of
the
gray
scale
shows
720
mVp-p
at
TP57.
(Hereafter,
this
level
is
called
gray
scale
shooting.)
3-6.
R
Matrix
Adjustment
Test
point:
TP55S
Test
equipment:
Oscilloscope
Adjusting
point:
RV53,
RV54
1.
Shoot
the
color
bar
chart
to
fill
whole
screen
and
to
obtain
630
mVp-p
at
white
at
TP57.
(Hereafter,
this
operation
is
called
a
color
bar
shooting.
)
2.
Check
waveform
image
at
TP5S
is
doubled
or
not.
If
doubled
adjust
RV53.
3.
Turn
RV54
fully
clockwise.
3-7.
B
Matrix
Adjustment
Test
point:
TPS3
Test
equipment:
Oscilloscope
Adjusting
point:
RV55
1.
Perform
the
color
bar
shooting
at
TP53.
Adjust
RV55
until
the
following
relation
is
obtained
among
Ye
level,
G
level
and
B
level.
G>Ye>B
3-8.
CHR
Level
Adjustment
Test
point:
TPS7
Test
equipment:
Oscilloscope,
vector
scope
Adjusting
point:
RV56
—
61
1.
Shoot
white
part
of
the
color
bar
at
center
of
the
screen
and
set
the
white
peak
to
0.7V
at
TP57.
2,
Adjust
RV56
and
RV57
for
minimum
white
carrier.
3.
Shoot
red
part
and
blue
part
of
the
color
bar
at
center
of
the
screen
respectively.
Adjust
color
gain
with
RV58
&
RVS59,
and
hue
with
RV60
&
RV61
to
obtain
the
values
given
in
the
table.
,
[eee
6
3-9.
Burst
Level
Adjustment
Test
point:
TPS7
Test
equipment:
Oscilloscope
Adjusting
point:
RV65
1.
Adjust
RV65
so
that
burst
level
at
TP57
shows
0.28
Vp-p.
3-10.
W.B
Adjustment
Test
point:
TPS7
Test
equipment:
Oscilloscope
Adjusting
point:
RV56,
RV57
1.
Shoot
the
gray
scale
to
fill
whole
screen.
2.
Adjust
RV56
and
RV57
alternately
until
carrier
signal
of
stair
step
waveform
shows
minimum.
3-11.
White
Clip
Adjustment
Test
point:
TPS7
Test
equipment:
Oscilloscope
Adjusting
point:
RV65
1,
Shoot
the
gray
scale
to
fill
whole
screen.
Open
the
lens
aperture
so
that
sufficient
saturation
occurs
on
the
waveform.
Adjust
RV65
until
0.85V
is
obtained
at
TPS7.
3-12.
AWB1
Adjustment
Test
point:
TP44,
TP45
Test
equipment:
Oscilloscope
Adjusting
point:
RV41,
RV42
1.
Shoot
the
gray
scale
to
fill
whole
screen
with
the
Specified
color
conversion
filter
(C16)
attached
and
to
obtain
700
m
Vp-p
at
white
peak.
2.
Adjust
RV41
until
hue
is
brought
onto
R
~
Y
axis.
Then,
adjust
RV42
until
the
carrier
level
decreases
to
1/2.
~
3.
Check
4.9V
+
0.3V
is
obtained
at
TP44
and
T
P45.
(If
not,
turn
RV41
fully
clockwise
and
RV42
fully
counter
clockwise,
and
return
to
the
Step
3-2.)
4.
Short
circuit
TP42
and
TP43
with
a
clip,
and
adjust
RV41
and
RV42
to
make
white
balance.
Remove
the
clip
after
the
adjustment.
R-Y
3-13.
AWB2
Adjustment
_
Test
point:
TPS7
Test
equipment:
Oscilloscope
Adjusting
point:
1.
Shoot
the
gray
scale
to
fill
whole
screen,
and
make
sure
the
carrier
is
within
0.1V.
2.
Remove
the
color
temperature
conversion
filter
and
shoot
the
gray
scale.
Make
sure
the
carrier
is
within
0.1V.
3-14.
AWB3
Adjustment
Test
point:
|
TP57
Test
equipment:
Oscilloscope
Adjusting
point:
R,
B
controls
(RV90,
RV91)
1.
Set
the
AWB
SW
to
SET
position.
2.
Shoot
the
gray
scale
to
fill
whole
screen.
Push
the
SET
button
and
check
carrier
is
within
0.1V.
Also
check,
the
AWB
LED
will
change
from
blinking
to
lighting
up
under
this
condition.
3.
Set
the
AWB
SW
to
MANU
position.
Adjust
FRONT
R
and
B
controls
for
minimum
carrier.
Make
sure
the
AWB
LED
is
tumed
off.
3-15.
AGC
Adjustment
Test
point:
TPS7
Test
equipment:
Oscilloscope
Adjusting
point:
GAIN
SW
1.
Shoot
the
gray
scale
to
fill
whole
screen.
Adjust
the
lens
aperture
until
white
peak
shows
0.28V.
2.
Turn
on
the
gain
switch
and
make
sure
amplitude
of
white
shows
0.45V.
3.
Place
the
gain
switch
to
S.UP
and
make
sure
amplitude
of
white
shows
0.63V.
4.
Turn
off
the
gain
switch.
3-16.
Shutter
Operation
Adjustment
Test
point:
TP57
Test
equipment:
Oscilloscope
Adjusting
point:
SHUTTER
SW,
SHUTTER
VR
1.
2:
ie)
Shoot
the
gray
scale
so
that
white
level
shows
0.7V
at
TPS7.
Set
the
SHUTTER
SW
to
1/100
and
make
sure
the
white
level
shows
0.56V
at
TP57.
.
Turn
off
the
SHUTTER
SW.
.
Switch
the
SHUTTER
VR
on
the
rear
panel
from
1/125
through
1/1000
successively,
and
make
sure
the
white
level
will
decrease
according
to
the
switching.
Also
make
sure
that
no
abnormality
occurs
during
above
operations.
.
Set
the
SHUTTER
SW
to
OFF
and
the
SHUTTER
VR
to
1/125.
3-17.
External
Sync
Check
Test
point:
VIDEO
OUT
Test
equipment:
Oscilloscope,
monitor
Adjusting
point:
H
phase
VR
(RV01)
1.
Feed
an
external
sync
signal
(VBS
or
BBS)
2.
Check
the
external
sync
signal
and
the
camera
VIDEO
output
are
synchronized.
If
not,
turn
RVO1
to
adjust
SYNC
position.
3.
Check
scope
display
shows
no
abnormality.
3-18.
30m
Cable
Picture
Quality
Check
Test
point:
TPS7
Test
equipment:
Oscilloscope,
monitor
Adjusting
point:
RV32
1.
Connect
a
30m
cable
and
make
sure
no
abnormality
occurs
on
picture
quality.
Use
the
gray
scale
and
the
color
bar.
(In
this
case
also
make
sure
the
waveform
does
not
show
any
abnormality.)
2.
Shoot
excessively
high
incidence
light
with
the
30m
cable
connected
and
make
sure
there
is
no
vertical
stripes
or
no
discoloring
occur
at
the
light
incidence
part.
If
not,
adjust
RV32
to
obtain
the
best
picture
quality.
Measurement
condition
for
item
2
of
3-18
1.
Switch
positions
on
the
front
panel
WHITE
BALANCE
FULL
AUTO
2.
Lens:Fully
open
3.
RV32
adjustment
Counter
clockwise
Clockwise
~
Vertical
stripes
Best
point
Undesirable
coloring
at
excessive
light
incidence
4.
Object:
Fluorescent
lamp
(about
20000
lux)
5.
Shoot
the
object
so
that
it
is
brought
at
upper
half
of
the
screen,
and
make
sure
undesirable
coloring
due
to
excessive
incident
light
at
the
upper
half
and
the
vertical
stripes
at
lower
half
of
the
screen.
3-19.
Final
Check
1.
Check
switches
on
the
front
panel
are
positioned
as
follows:
POWER
WHITE
BALANCE
FULL
AUTO
SHUTTER
2.
Check
switches
and
controls
on
the
rear
panel
are
positioned
as
follows:
SHOTERVR
SECTION
4
SERVICING
DIAGRAM
1.
BLOCK
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22
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