Runco DTV-992 - Manual (Page 42)

7-6
Service Mode
Dynamic Astigmatism (spot shape adjustment)
The spot shape adjustments correct the spot shape in 8 different
areas on the screen and that for the three colors separately. The
spot shape is adjusted according to the axial axises and the diago-
nal axises when using the arrow keys on the RCU.
These adjustments have to be done on a dot pattern (e.g. the inter-
nally generated pattern) with standard line frequency (15 kHz). The
adjustment values are stored in the EEPROM and remain the same
for all frequencies.
Follow the next procedure:
Highlight ‘Dyn. Astigmatism’ by pushing the joy stick forward or
backward and press ENTER to select.
EXIT returns to the path selection main menu.
Select the source type, selected source or genlock pattern, by high-
lighting the color for which the spot shape has to be corrected and
press ENTER.
e.g. when selecting RED under ‘on genlocked pattern’, the projec-
tor switches to a genlocked pattern.
Press ENTER to continue adjustment.
Increase the contrast level using the Contrast Control to near maxi
mum. Using that “+” Sharpness Key, defocus the image until the
dots are large and easily visible. Press ENTER to continue to SEL.
SEL : select the adjustment area on the screen where the spot
shape has to be corrected.
Use the arrow keys to select one of the 8 areas. Press ENTER to
continue to ADJ.
ADJ : adjust the spot shape in the axial or diagonal direction when
using the arrow keys for the selected area. Adjust until the spot
shape is circular.
1 2 3
5
8 7
4
6
Spot Shapes
before dynamic
astigmatism correction
Diagonal
astigmatism correction
Spot Shapes
after dynamic
astigmatism correction
Axial
astigmatism correction
(use the and
arrow key)
(use the and
arrow key)
DYNAMIC ASTIGMA YNAMIC ASTIGMATISM TISM
ON SELECTED SOURCE
ON GENLOCKED PATTERN
BLUE
GREEN
RED
BLUE
GREEN
RED
Select pattern or color
or
then
to return.
with
SERVICE MODE
IDENTIFICATION
COPY A BLOCK
DELETE A BLOCK
DELETE ALL BLOCKS
CHANGE PASSWORD
CHANGE LANGUAGE
RUN TIME
SET TO MIDPOSITION
CONVERGENCE MIDE
DYNAMIC ASTIGMATISM
MORE...
DYNAMIC ASTIGMATISM
First adjust the defocusing
of the image.
SEL : select area using arrow keys
ADJ : adjust axial astigmatism
using
or , diagonal
astigmatism using
Toggle between SEL and ADJ
with
to continue
to return.
DYNAMIC ASTIGMATISM
ON SELECTED SOURCE
RED
GREEN
BLUE
ON GLENLOCKED PATTERN
RED
GREEN
BLUE
Select pattern or color
with or
then
to return.