Specifications

5–56 Replacement Procedures
Resistors, Terminating (Figure 5–25 )
For parallel interface configurations, the LG06 printer is equipped with 1K
ohm pullup terminating resistors, located at coordinates 12C on the Common
Controller PCBA. The 1K ohm terminating resistors are suitable for most
applications.
If the standard terminating resistor pack is not compatible with the particular
interface driver requirements of the host computer, other values of
pullup/pulldown resistors may be required. Digital provides the 330 ohm
pullup and 220 ohm pulldown alternate terminating resistors. If the 330 ohm
pullup resistor is installed, also install the 220 ohm pulldown resistor.
Removal
1. Prepare the printer for maintenance (page 5–3).
2. Remove the Common Controller PCBA (page 5–46).
CAUTION
To prevent electrostatic damage to electronic components, wear a
properly grounded static wrist strap when handling PCBAs and
components.
3. Locate the terminating resistor pack (see Figure 5–25 ).
4. Using a chip puller, remove the pack.
Installation
CAUTION
To prevent electrostatic damage to electronic components, wear a
properly grounded static wrist strap when handling PCBAs and
components.
1. Using a chip installation tool, install the resistor pack in the correct
socket (see Figure 5–25 ).
2. Install the Common Controller PCBA (page 5–46).
3. Return the printer to normal operation (page 5–80).