Datamax I-class Maintenance Manual page 84

3. Remove the two Screws that secure the Main Logic PCB to the Card Cage. (In some cases it may
also be necessary to remove the adjacent Filler Plate.)
Main
Logic PCB
Screws
4. Pull the Main Logic PCB from the Card Cage.
Replacement:
1. If replacing Main Logic PCB P/N 51-2301-01, ensure that the Jumper is placed between E1 & E2
(also, see note below for communications options); otherwise proceed to Step 2.
Note: If using the RS-422 option, ensure that the correct U10 is installed and that a Jumper

is placed across E12 & E13.
Removal and Replacement
Card
Cage
E1 E2 E3
51-2301-01
4-28
Filler
Plate
Guides
Jumper