Symbol Technologies LS 3070 Manuale Utente

1. Be sure the IBM 3653 terminal is powered-down. Open the door over the 

2. Loosen the right side panel screw (see 

). Grasp the right panel 

at top of the rear corner; pull out to the side and push back to remove the 
panel.

3. Loosen the two screws behind the top of the keyboard cover. Lift and 

remove the keyboard cover. See 

.

4. From the bottom of the register, slide the cable retaining clips until the 

cables are free. From inside the register, pass the base station cable (single 
end) through the power cable hole. See 

Use extreme care to avoid damaging the connector pins.

5. Loosen the screw on the base of the cash register near the bottom left side 

of the card cage. Swing the card cage open by pulling on the left side. See 

.

6. Locate the keyboard connector to check for 5 volts DC. Using a DVM, 

connect the GND (-) probe to the screw that holds the keyboard to the 
chassis, and connect the POS (+) probe to the 5-volt lead on the TOP ROW 
of the keyboard connector, second from right (see 

). Turn on the 

cash register. If the voltage is less than 5 volts, locate the voltage adjustment 
hole on the power supply case behind the card cage (see 

a flexible screw driver, adjust the potentiometer until the voltage is 5.0 to 
5.1 volts. Turn off the register and remove the DVM.

7. Route cable under card cage to the front of the register.

8. Locate the keyboard connector on the keyboard and observe its orientation 

while removing the connector.

9. Place shrink sleeve over the cable assembly (heat with blow dryer or heat 

gun to shrink the sleeving if possible).

10. Insert the polarizing key into the top right corner socket. The polarizing 

key is found in the bag containing the tie wrap.