IBM PS/2 N51 SX HMR Manual page 39

6.7 1070 System Board and Keyboard Control Card
Optional Communication Adapter, if installed (1020)
Bottom Cover (1010)
Memory Module Kit, if installed (1030)
Voltage Converter (1040)
Hard Disk Drive (1050).
Notes:
1. When a new system board is installed, be sure to set the time and
date, and restore the system configuration data.
2. When you replace the keyboard control card or install a new one, make
sure that the switch setting on the card is suitable for the type of
keyboard (see "Keyboard Control Card" in topic 7.6).
PICTURE 14
PICTURE 15
Note: To disconnect the flexible cables 4, release the locking plate with
your finger nails and disconnect the flexible cable from the
connector.
IBM PS/2 Model N51 SX HMR
1070 System Board and Keyboard Control Card
PICTURE 16
¦ Copyright IBM Corp. 1991
6.7 - 1