Checking Procedure - Sony SEL1655G Service Manual

5-3-2. Projective Resolving Power Check
Reference value:
Focal length f
Distance (m)
(mm)
16
24
35
45
55

Checking Procedure

1. Set the projection distance of the lens projector. (Refer to "Reference value")
2. Set the focus.
3. Bring the projector into focus so that fine lines of the center projected image (y' = 0) on the screen can be clearly seen as much as possible
by operating the program screen.
Center (y' = 0)
0.64
0.96
More than
1.4
80 lines
1.8
2.2
The number of projective
resolving power lines
Number of projective resolving power lines (lines/mm)
Peripheral (y' = 10)
S M
More than More than
32 lines 32 lines
Use the small projected image.
(for High frequency)
Saggital (S)
Meridional (M)
5-18
SEL1655G
Peripheral (y' = 12)
S M
More than More than
20 lines 20 lines
– Continued on next page –
SYS SET