Slide Scanner Repair Manual Diagnostics and Troubleshooting
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horizontal size differs by more than 1% an error is reported. Table 5-8 interprets the results of
the Distortion and Mag Test.
Table 5-8. Interpreting Measurements Provided by the Distortion & Mag Test
Test Name Specification Suggested Repair
SS35ES & Plus
GMT Origin (x,y) None N/A
GMT Angle (x,y) None A high number could suggest excessive
slide carrier tilt that will, in turn, cause a
failure of the right resolution test. See
Slide Carrier Tilt Adjustment procedure.
Distortion % 0.5% High distortion percentage suggests
that the lens is defective, the GMT target
is no longer flat, or the carriage
assembly is bad.
Horz Mag. 0.8079 +/- 1% Failure of this test suggests Mag
adjustment is needed. See Mag
Adjustment procedure.
Left, Center and Right Resolution Test
This test checks a number of 15 line per mm left, center and right target areas on the GMT
target for image contrast. The normalized result must be greater than 0.70. Table 5-9
interprets the measurements of the Resolution Test.
Table 5-9. Interpreting Measurements of the Resolution Tests
Test Name Specification Suggested Repair
SS35ES & Plus
Left Vert Res (RGB) > 0.70 Focus adjustment required.
Left Horz Res (RGB) > 0.70 Focus adjustment required.
Center Vert Res (RGB) > 0.70 Focus adjustment required.
Center Horz Res (RGB) > 0.70 Focus adjustment required.
Right Vert Res (RGB) > 0.70 Focus adjustment required.
Right Horz Res (RGB) > 0.70 Focus adjustment required.
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