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5-18
LS 3070 Product Reference Guide: Interface Guide
12. Cut a 1-in. diameter semicircle at the bottom left of the terminal cover,
approximately 6 1/2 in. from the back of the unit, so that when the cover is
replaced, this opening fits over the cable. Be sure to file down all sharp
edges.
13. Replace the terminal cover making sure that cable fits into the opening;
secure the two screws at the back of the terminal. Replace the steel plate to
the terminal cover and secure.
You can now attach your scanner and peripheral devices.
NCR 2151 Installation
1. Be sure the NCR 2151 terminal is powered-down. Remove the terminal's
front grille by loosening the two (2) screws (turn clockwise) that fasten the
grille down to the front of the terminal. Fully extend the card slide
assembly. Disengage the catches holding the board assemblies in place.
Then gently pull out the processor board (top board) until the connectors
at the rear of the board become visible. To prevent the board from falling
through the card slide assembly, it may be necessary to support the board
assembly during this phase.
2. Locate the integrated circuit designated U109 on the processor board. Note
U109's orientation by locating its pin 1; this is crucial for the replacement
that follows.
Note: U109 is socketed. Using a small screwdriver,
remove U109 from its mating socket. Replace the
part with the Terminal Retrofit Circuit provided
with the installation kit. Be sure that the
replacement part is oriented in the same direction
as the part it replaces.
3. On the far left side of the processor board, carefully remove the connector
marked I/O P7 from its mate (J7). Take the K8 T-board connector (p/n 21-
02977-01) from the shipping container, and connect J1 to J7 on the processor
board. This connection mates in one direction only. As the connectors are
not keyed, be sure the connecting pair is properly aligned.
4. Locate the J3 connector on the rear right side of the processor board. If a
cable mates to J3, remove it and note its orientation, as it must be returned
to the same position later.