Commodore SX-64 Installation Instructions

SX-64 Installation Instructions
Required tools:
• Phillips screwdriver
• IC extractor or small, flat bladed screwdriver. Needed for removal of the DOS ROMs from the SX-64. An extractor is recommended,
but not necessary. If using a screwdriver, wrap tape around the tip to prevent damage to the circuit board when prying.
• Hand or power drill. Necessary for installation of the ROM selector switch in the SX-64 case assembly.
Procedure:
1. Make sure that the SX-64 power switch is OFF and that any peripherals (printer, disk drive, etc.) attached to the SX-64 are also
switched OFF.
2. Unplug the SX-64 AC power supply cord from its wall outlet, outlet strip, etc.
3. Unplug all cables from the SX-64. including (if attached) the AC power supply cable. Keyboard cable. Joystick cable(s), Video
cable, and Serial Bus cable.
4. If a disk is present in the disk drive, remove it.
5. Remove any devices plugged into the Cartridge and User Ports.
6. Remove the eight screws shown in Figure 1 from the rear of the SX-64.
Remove
Remove
these
screws
Figure 1: REAR PANEL SCREW REMOVAL
7. Remove both side rails from the SX-64 by sliding them towards the rear of the computer and then remove the three top cover
-Reaovt thest screws
retaining screws from each side of the SX-64 as shown in Figure 2.
/ 1 \
o
o
D
o"
• \
Figure 2: SIDE RAIL AND SCREW REMOVAL
8. Remove the SX-64 top cover.
9. Locate the SX-64 CPU circuit board using the board layout diagram shown in Figure 3.
CPU tx>«rd —.
I/O board-
1541 board
Figure 3: SX-64 CIRCUIT BOARD LAYOUT