Digi-Mouse Controller (250-1015) Installation Faxback Doc. # 5536
Clock/Calendar Plus Board
Be sure you have the following equipment:
* Tandy 1000 PLUS DIGI-Mouse Controller/Calendar Board
* Type CR 2320H 3-volt Lithium Coin Cell Battery (260-163), included with the
board.
* DIGI-Mouse (sold separately)
* Tandy 1000 Memory PLUS Expansion Board (sold separately)
* Installation guide that is included with the Memory PLUS Board
As mentioned in the introduction to this manual, you new PLUS DIGI-Mouse
Controller/Calendar board plugs into the Memory PLUS Expansion Board. The
memory board, in turn, plugs into 1 of 3 option slots on the computer's main
circuit board.
We highly recommend that you have the mouse and memory boards installed by the
service technicians at your Radio Shack Service Center. Doing so ensures
expert installation, but also enables the technicians to quickly check to be
sure all the equipment is functioning properly.
If, however, you decide to install the boards yourself, follow the
instructions in this chapter exactly.
CONNECTING THE MOUSE BOARD TO THE MEMORY BOARD
CAUTION: Do not stand on a carpeted floor during this procedure. Walking on
carpets promotes the build-up of static electricity, which, if discharged
while you are handling a circuit board, can destroy integrated circuits (IC's)
on the board.
1. If your Memory PLUS Expansion Board is already installed, remove it by
following these condensed instructions: Turn off your computer, disconnect
all equipment, remove the computer's cover, discharge any built-up static
electricity by touching a grounded metal object, unscrew the bracket, and
remove the board. Remember to wait at least 10 seconds between
disconnecting the equipment and removing the board.
2. If you plan to install additional memory, you might need to remove the
jumper on your memory board and add memory IC's to the board. If so,
perform these steps now so that you do not need to remove the mouse board
later. The mouse board, once installed, covers jumper pins. See your Memory
PLUS Expansion Board Installation Guide for information on reconfiguring
the jumper and installing the IC's.
3. Discharge any built-up static electricity by touching a grounded metal
object.
4. The memory board comes with a solid, metal bracket. To install the mouse
board, you must replace this bracket with the one supplied with the mouse
board. Loosen and remove the 2 screws that secure the solid bracket.
Remove the bracket and save it for possible later use.
5. Attach to the memory board the bracket that has the cutout, securing it
with the screws that held the original bracket. Do not over tighten the
screws.
6. The clock function is backed up by a Lithium Coin Cell battery so that the
correct time is retained when you turn off the computer. The battery has an
estimated lifetime of more than a year. Install the battery now, by sliding
it under the clip on the mouse board, positive side up.
7. Packaged with the mouse board are 3 white, nylon stand offs used to help
support the mouse board. Insert one end of each stand off into 1 of the
holes on the mouse board, as shown in Figure 2. Although the 2 ends of the
stand offs are shaped differently, it does not matter which end you attach
to the mouse board.
8. Hold the mouse board at a slight angle to the memory board so that its
cable connector fits into the cutout.
9. Carefully align the mouse board's socket connector over the row of pins on
the memory board as shown. Then, slowly lower the board onto the pins,
maintaining the alignment so that the pins go into the corresponding holes
on the socket. Be sure to keep the cable connector in the bracket.
When the board is completely seated and is parallel to the memory board, check
to see that all pins are fully inserted into the socket. If you encounter any
resistance, stop. Do not force the board. You might have a bent pin that
requires repair by a Radio Shack technician.
10. Snap each stand off into the corresponding hole on the memory board by
applying pressure to the mouse board.
11. Using the 2 screws provided, secure the cable connector socket to the
mounting bracket, as shown below.
You are now ready to install your mouse/memory combination board ont the
computer's main circuit board. To do so, follow the instructions in the next
section.
INSTALLING THE COMBINATION BOARD
1. WARNING: Be sure all equipment is turned off and disconnected. If any unit
is on, you might damage the central processing unit or the board. Always
wait at least 10 seconds between disconnecting the equipment and inserting
or removing a board.
2. As before, touch a grounded metal object before beginning the installation,
and DO NOT stand on a carpeted floor.
3. Remove the 2 screws on the front of the main unit. Then, remove the
computer's cover by sliding it straight toward the front of the unit.
4. Rotate the main unit so that the back of it faces you. To the immediate
right of the fan are 3 option slot covers, each fastened to the chassis by
a sheet-metal screw. On the main circuit board, directly behind these
covers, are 3 thin, black edge-connector sockets. You install the
combination board in either the middle socket or the one on your right.
5. Remove the screw from the selected cover. Then, remove the cover by tilting
it away from you and lifting it clear of the slot. Store it in a safe place
for future replacement.
6. As you look at the computer from the back, check the upper right corner for
the main circuit board for a small, multi-pronged metal connector.
If your board: then:
has the connector do NOT remove the short wire attached to one
corner of your memory board. You connect
this wire in Step 9.
does NOT have remove the short wire attached to one corner
the connector of your memory board. You do not need it.
7. Touch a grounded metal object. Now, grasp the combination board by its
upper edges, and position it above the socket. Insert the combination
board's bracket into the slot in the same way the slot covers are mounted.
At the same time, apply even downward pressure, engaging the edge-connector
in the socket.
8. Align the board's bracket so the U-shaped cutout is positioned over the
screw hole. Replace the screw you removed earlier. Do not over tighten it.
9. If you did NOT remove the wire mentioned in Step 6, fasten the free end of
it to 1 prong of the mult-pronged connector.
10. Replace the computer's cover, securing it with the screws previously
removed.
CONNECTING THE MOUSE
With all the equipment turned off and disconnected, plug the DIGI-Mouse into
the cable connector on the combination board.
CHECKING THE MEMORY
To be sure the computer is registering the correct amount of memory, follow
these steps:
1. Re-connect all equipment, and turn on the computer and the monitor. You
need not have a diskette in the drive.
2. The first message displayed is the amount of available memory. Suppose you
install the memory board with its standard 256K RAM (you do not add IC's to
it). Because your computer contains 128K of built-in RAM, your system has a
total of 384K. Therefore, the screen displays:
MEMORY SIZE = 384K
If you see any other message, such as MEMORY FAULT ERROR, disconnect all
equipment, and turn off your computer. Then, after waiting at least 10
seconds, remove the computer's cover to see if the memory board is completely
seated in the socket. Recheck your jumper configuration, too. Then, run the
memory check again.
If you still get an error message, contact your Radio Shack store for
assistance.
Once your screen displays the correct amount of memory, you are ready to
install the mouse/calendar software. Continue to Chapter 2 after taking not of
the information below.
NOTES:
* Any time you plug your mouse board into your computer--whether initially
upon installation--or because you removed the board for some reason, the
battery signal might indicate that the battery is low. After you install the
software, you can clear this false indication by using the CLOCKSET routine
(described in Chapter 5).
* When you need to replace the battery, remove the combination board, adhering
to the precautions in Step 1 of "Connecting the Mouse Board to the Memory
Board." Then, use an awl or a small screwdriver to pry up the old battery.
(SMM/jlc-03/28/94)