Inspection Standard - Nikon Super CoolScan 9000ED Repair Manual

Inspection Standard

1. Illumination
・Illumination irregularity:
When no compensation is made (in shipping), the range calculated based on the max. and min. values
should be 42% or less.
Shading compensation:
・
Shading value of each RGBI with respect to the outputs should be 10% or less.
・Adjacent pixels compensation:
Difference in adjacent pixels of each RGBI should be 5% or less.
・Uneven brightness in black areas:
44 db or more for each RGBI
・Light volume:
The following conditions of WB time for RGBI should be met.
Conditions
RGBI only
Color Positive: 3 colors
Color Positive: 4 colors
Color Negative: 3 colors WBR×1.995 ＋ WBG×3.981 ＋ WBB×7.943 ＜ 48.3
Color Negative: 4 colors WBR×1.995 ＋ WBG×3.981 ＋ WBB×7.943 ＋ WBI×1.175/2 ＜ 53.6
2. AF (Autofocus)
・AF range:
4.5 mm or more
・AF original position accuracy:
Reference value ± 47 step
・AF alignment position:
The difference between AF position and MTF peak position should be ± 1 point or less
・AF repeat accuracy:
± 1 point or less for the same film at the same designated position
・AF time / AF scanning time:
Standard: The time taken for successful AF at one try including stage moving time should be as follows:
135 film (of both mount and strip films): 21 seconds or less (120 film 6×9): 26 seconds or less
49.98% or less (compensationable range)
WB time
WBR, WBG, WBB, WBI ＞ 30μs
WBR×1.995 ＋ WBG×1.995 ＋ WBB×1.995 ＜ 20.7
WBR×1.995 ＋ WBG×1.995 ＋ WBB×1.995 ＋ WBI×1.122/2 ＜ 26.3
- R1 ･ -
LS-9000
VRA51701-R.3607.A