Data Controller Board; Removal And Disassembly - Printronix L1024 Maintenance Manual

9.6 Data Controller Board

9.6.1 Removal and Disassembly

WARNING:
1. Remove the 4 Screws from the printer Back Panel that secure the Data Controller Board. See
Figure 9–1.
CAUTION:
2. Slide the Data Controller Board out of the printer part of the way, until you can gain access to
the Floppy Disk Drive Power Cable Connector (J5) and Data Cable Connector (J10) on the
board. See Figure 9–1 .
3. Disconnect the Floppy Disk Drive Power Cable from Connector J5 on the Data Controller
Board.
4. Disconnect the Floppy Disk Drive Data Cable from Connector J10 on the Data Controller
Board.
5. Slide the Data Controller Board out the rest of the way, and remove it from the printer.
Chapter 9 – Controllers and Floppy Disk Drives
To prevent electrostatic damage to electronic components, always
wear a properly grounded static wrist strap when you handle circuit
boards and components. Do not remove or replace the NVRAM on the
Data Controller Board. The NVRAM contains a lithium battery that can
explode if the NVRAM is replaced incorrectly. NVRAM is replaced only
at the factory.
The Floppy Disk Drive Data and Power Cables must be disconnected
from the Data Controller Board before the board can be removed from
the printer.
9–9