Service manual

LUMISCAN ACR-2000 READER SERVICE MANUAL - SECTION 5.0 SERVICE ADJUSTMENTS

5-5

5.3.2 Place the 14” Linearity Adjust Pattern (P/N 0070-966) in the input slot with the vertical lines

facing the unit and the widest red bar towards the abort button.

5.3.3 From the “tools” directory, enter LNADJDT at the command prompt. Enter the Serial Number of

the reader. Press <Enter> to continue. When prompted for Lines to Skip, press <Enter>. Observe the

following screen display.

SN: xxxx Model: LSxx Target Delta sum: 3902 1

Edge: 86

Delta: 276 277 278 277 280 279 281 280 280 279 280 278 278 279

Marks: 1 2 3 4 5 6 7 8 9 10 11 12 13 14

CAL- = 1.00%, CAL+ = 0.79%

sum of Delta's= 3902, average of Delta's = 278.10

Number of edges found = 15 Distance to 1

edge = 86

5.3.4 If the preferred parameters are met, it is not necessary to continue the Scan Linearity

adjustment. If you are experienced at this adjustment and wish to set the Sum of Deltas and Distance to

first edge to nominal, you may. If the preferred parameters are not met, proceed to 5.3.5.

5.3.5 If the allowable parameters are met, proceed to 5.3.12. If the allowable parameters are not met,

proceed to 5.3.6.

5.3.6 If the allowable parameters are not met, the beam may be out of position. To check the position of

the beam, press the “p” key. A properly positioned beam will result in the following plot.