Changing The Color Matrix Setting - JVC GY-DV500U Service Manual

1.11.6 EEPROM in Camera
IC905 on the CAM1 board is an electrically erasable/rewritable
EEPROM. It stores the following data.
Camera adjustment data set in the adjustment mode.
Settings in [CAMERA MENU].
White blemish position coordinate data for use in white blem-
ish correction.
Auto white balance control data (A/B).
Camera status at the last power OFF (positions of non-lock
type switches, etc.).
Therefore, when retention of the above data becomes impossi-
ble due to a failure in the EEPROM or over the 1 million times of
rewrite count, the EEPROM should be replaced with a new one
and the data should then be re-set in it.
1.11.7 Tripod base
See the KA-510U servide manual NO. 60065 for servicing.
The tripod is not exactly same as KA-510U. See note for the
difference.
Note
These 1/4 and 3/8 inch fixing tripod holes are not
povided for the KA-510U.
2–3/8"
Accessory
Front
Not provided
KA-510U
Front
4–1/4" 4–3/8"
1-16
2–1/4"
Rear
Not provided
Not provided
Rear

1.12 CHANGING THE COLOR MATRIX SETTING

NOTE
The color reproduction properties of the color-matrix circuit
built into the DSP can be re-set by varying the values of 9
parameters. However, as these parameters have been set at
the factory to the default values based on detailed studies of
the product development process, it is usually not recom-
mended to alter them. Note that this adjustment is not a
normal electrical adjustment item.
Should a re-adjustment of the color matrix (a color reproduc-
ibility change) be required as a result of a user request, etc.,
this should be performed only after studying and understand-
ing the details of the following instructions.
1.12.1 Setting the Color Matrix
Preparation
The color matrix setting requires a color chart for use as a
reference for color reproduction and a vectorscope. As we
do not specify a color chart for this purpose, discuss the
matter with any user requesting a custom setting and use a
color chart to be agreed by the user.
Adjustment
The color-matrix circuit can be set using menus displayed
on the screen (the viewfinder-screen or the test out screen).
MODE : M3 M2 M1 DATA
R (R-G) :
R (R-B) :
G+(G-R) : X
G–(G-R) : X
G+(G-B) : X
G–(G-B) : X
B+(B-G) : X
B–(B-G) : X
B (B-R) :
Fig. 1-12-1
Use the following procedure.
(1) Remove the right side cover (see section 1.3.1)
(2) Set DIP switch S901-6 on the ROM board to ON to display
the color-matrix setting menu on both the viewfinder and
testout screens.
(3) Move the cursor (mark of " ") to the desired item by using
the [SHUTTER] dial.
(4) When the cursor set on the desired item, pushing the [SHUT-
TER] dial causes the selected item to blink. (This is the sta-
tus of the value adjustment.)
(5) When the adjustment value is blinking, rotating the [SHUT-
TER] dial varies the adjustment value. The available adjust-
ment values are "M3", "M2", "M1" which is 0 or 1, and
"DATA" which is between 0 and 31.