Service manual

PV152 2-8 PROJO
Lens Change of color aberration
R Lens Red Crimson
G Lens Blue Red
B Lens Purple Green
5. In case of G lens, set to the point where the chro-
matic aberration switches from blue to red. If the
chromatic aberration appearing all over the screen is
not the same, observe the vertical bright line at the
center of the screen and set to the position where red
chromatic aberration slightly appears inside and blue
outside (reference value: 1~3mm) within the cross-
hatch pitches specified in next table. When the red
chromatic aberration appearing at both sides of the
bright line is not equal, observe the side with larger
chromatic aberration when adjusting.
L1
L2
RED
CHROMATIC
ABERRATION
SLIGHTY BLUE CHROMATIC ABERRATION
OR NO COLOR
Set Size Pitch between L1 & L2
50" 3.0 cross-hatch pitches
60" 3.0 cross-hatch pitches
6. In case of R lens, set to the position where the
chromatic aberration changes from red to crimson. As
shown below, observe the vertical bright line at the
center and set to the position where the crimson
chromatic aberration slightly appears inside and red
outside (reference value: 1~3mm) within the cross-
hatch pitches specified in next
table.
L
RED
CHROMATIC
ABERRATION
SLIGHTY CRIMSON
CHROMATIC ABERRATION
Set Size Pitch between L
50" 3.0 cross-hatch pitches
60" 3.0 cross-hatch pitches
7. In case of B lens, set to the position where the
chromatic aberration changes from purple to green.
As shown below, observe the vertical bright line at the
center and set to the position where green chromatic
aberration slightly appears inside and purple outside
(reference value: 1~3mm) within the cross-hatch
pitches specified in next table.
L
PURPLE CHROMATIC
ABERRATION
SLIGHTY GREEN
CHROMATIC ABERRATION
Set Size Pitch between L
50" 3.0 cross-hatch pitches
60" 3.0 cross-hatch pitches
NOTES:
1. Fixing screw 2. Color aberration
LENS
FIXING SCREW
COLOR
ABERRATION
CROSS-HATCH
3. Since the G light is very important for picture quality
and performance, pay special attention in its
adjustment.
NOTE: Be careful not to touch the lens with your fingers
when adjusting.
CONVERGENCE ADJUSTMENT