Installing Additional Memory - Tandy 1000 TL3 User Manual

Adding Optional Equipment
Installing Additional Memory
The Tandy 1000 TL/3 has 640KB of RAM supplied by four lOOns, 256KB x
4 memory chips. You can install 128KB of additional memory to increase
the total system memory to 768KB.
To install additional memory, you will need a 128KB Memory Kit (Cat. No.
25-1078). The kit contains four lOOns, 64KB x 4 memory chips and instruc-
tions. Be sure to read the instructions before you complete the following in-
stallation procedure:
I. Remove one of the memory chips from the special antistatic package.
2. Find the four memory chip sockets on the main logic board. These sock-
ets are labeled U4, U5, U6, and U7. Refer to "Main Logic Board and
Satellite Board Layout" to locate the sockets.
3. Find the notch or dot on the chip. (Check the kit instructions.)
4. Align the notch or dot on the chip with the notch on the memory chip
socket on the main logic board.
Back of Computer
Pin 1
Memory Expansion
Chip and Sockets
5. Gently press the memory chip into the socket.
6. Install the three remaining chips in the memory sockets on the main
logic board.
27