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SAMSUNG DCS 70
INSTALLATION MANUAL
Chapter Seven : CHANGING SOFTWARE ON THE DCS - 70
ACCESSING THE EPROMS
The system software is contained on the MEM card. This procedure should be performed in the
following sequence -
1.
Check that the battery switch on the MEM card is ON.
Note. If the documentation with the new software indicates that reprogramming will be necessary, the
battery switch may be switched OFF at this stage to ensure the system is properly returned to
default data.
2.
Switch off the KSU. Do not unplug the KSU from the GPO.
3.
Remove the MEM card and the RAM pack and set them aside.
REPLACING THE EPROMS
1.
Remove the four EPROMs using a suitable IC extraction tool and set them aside in case they
need to be re-installed.
2.
Remove the four new EPROMs from their protective packaging and check that the legs are
straight and undamaged. Damaged EPROMs should be returned to the supplier and replaced
with an undamaged firmware set
3.
Carefully insert the new EPROMs, commencing with the one closest the Power Supply (ODD2)
into the designated sockets. The new EPROMs are labelled with EV-1, OD-1, EV-2 and OD-2.
The EPROM positions are marked on the MEM card adjacent to each IC socket. Refer to
Figure 6-1.
4.
Install the MEM card carefully.
5.
Switch on the KSU and verify that the system is operating. If the KSU does not operate,
remove the new EPROMs, re-install the old EPROMs and test again.
6.
When the system is operating correctly switch ON the battery switch on the MEM card and
replace the covers.
Page 7-6
th
10
January, 2000
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