Controlled Products Systems Group 1834-080 - Manual (Page 19)

1.9 Memory Chip Installation
The telephone entry system is shipped with the memory chips already installed in the unit. However,
if you need to change the memory chips (to match an older unit, for example), follow the instructions
below.
CAUTION!! Do not install the memory chips with power to the telephone entry system turned
on. Attempting to install the memory chips with power on will irrevocably damage the chips.
Memory chips are a static sensitive component. Discharge any static electricity from your
hands by touching a proper ground device before removing the control board. Handle the
memory chips with care.
1. The large memory chip socket is colored black and is located in the center of the circuit
board. Be sure that the handle is in the un-locked position (pointing up).
2. Carefully insert the memory chip into the socket. The small half circular indentation on
the chip must be at the top. CAUTION: Installing the memory chip upside down will
cause permanent damage to the chip. Be sure that the memory chip is seated correctly
in the socket, then move the lever on the chip socket to the locked position (down).
3. Install the small memory chip in the socket located at the bottom of the circuit board. The
small circular indentation on the chip must be at the top. CAUTION: Installing the
memory chip upside down will cause permanent damage to the chip. Be sure that the
memory chip is seated correctly in the socket.
1830 Series Circuit Boards Memory Chip Location
1
1
Dimple on chip must be at top!
1
DOORKING, INC., INGLEWOOD, CA 90301
Date: Dwg. No.
1830 Series Memory Chip Location
Rev.
Title:
3/03 A M1835-065-1
1835-065-R-10-11 Page 19