Memory Chip Replacement - DKS 1834 PC Programmable Installation & Owner's Manual

1.5 Memory Chip Replacement

The telephone entry system is shipped with the memory chips already installed in the unit.
replace the memory chips (to match an older unit, for example), follow the instructions below. See 3.1.3 Memory Chip Identifi-
cation for information about the memory chips in the telephone entry system.
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 touching the control board. Handle the memory chips
with care, the pins bend easily.
DO NOT
install the memory chips UPSIDE DOWN. this will cause permanent damage to the chips. Be sure that the memory
chips are seated correctly in the sockets.
Discharge any static electricity from your hands by touching a proper ground device before installing chips!
1834 Circuit Board Memory Chip Locations
RS 232
CONTRAST
MIC
VOL
3 2 1
SPK
VOL
FEED
BACK
3 2 1
RING
PHONE CGND PSW
1834-065-B-10-14
Power MUST be OFF to the Circuit Board!!
CLK
SEN
ON
MASTER
CODE
OFF
KEYPAD
MIC COM SPKR IMD 5VDC IMC Z A
CAUTION
NO
NC
2C 2RY 1C 1NC 1NO BAT 16AC 16AC
However, if you need to
Dimple MUST be at
the top of the chip!
R e
l e a
s e
L o
c k e
d
Dimple MUST be at
the top of the chip!
P r e
s s
B e
F i t
C a
r e f
u l !
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