Casio SA-5000 Service Manual page 5

BACK VIEW
Expansion Brackets
Parallel Port
Figure 1-1 gives an isometric view of the system. On the front, the Floppy Disk Drive cover can be
locked up with a keylock.
The receipt printer is under the printer cover while the Customer Display is behind the Operator
Display which is a LCD display.
On the left side, the Power On/Off switch is hidden by a plastic cover which also hide the External
Input Device slide switch for either PC AT keyboard or Bar Code Scanner. The connection port is
hidden by a rubber plug. On the right side, there is the contrast dial knob for the contrast function of
the LCD panel.
Figure 1-2 gives the rear view. With the rear plastic cover removed, the connectors are revealed.
The 25-pin D-Sub connector for the parallel port is on the extreme left while the 3-pin plug for AC
power supply is on the extreme right.
From left to right, the 15-pin D-sub VGA connector for CRT connection, three 9-pin D-sub
connector, 2 RJ-11 connec-tors, which are part of the Printer Controller board, for Cash Drawers
and RJ-45 connector for Ethernet can be seen.
Above the row of these connectors is the 2x5 2mm connector for the Customer Display and another
9-pin D-sub connector for the serial port.
Note: Due to physical construction, there is limitation in
width of the RS-232C connector.
Maximum width is 28.0 mm. Most of ready-made
cables in the market are applicable.
Customer Display
Port
Serial Ports
VGA CRT Port
Figure 1-2
— 3 —
Cash Drawer Ports
Ethernet LED Indicator
Connector
Width
Power Supply