Samsung DCS-816 Programming Manual

Also see for DCS-816: Programming manual Programming manual User guide Installation manual Installation manual

Contents

SAMSUNG InstallationDCS-816 February, 19998-1PART 8. CHANGING SOFTWARE (Figure 8-1)In order to easily replace the system software, it may be necessary to partially disassemble theKSU. Follow this procedure step by step.1. Read carefully the instructions released with the new software or contact your distributor ordealer for advice.2. Remove the KSU front cover.3. Check the memory backup switch on the base board and do as instructed.In most cases it is recommended you keep the switch ON to prevent data loss.However, new software sometimes needs to change the database structure, and thisrequires you to clear all the data. If so, you will have to set the switch OFF andreprogram the system after replacing the software (you will need to store user data onyour PC or write it down on paper). Contact your distributor or dealer for advice.4. Remove the external battery (if installed) and switch OFF the system.5. Remove the four EPROMs (U703, U704, U705 and U706) from the base board using a chipextraction tool or by gently prising with a small, flat-bladed screwdriver. Put the removedEPROMs aside carefully in case you need to reinstall them.6. Remove the new EPROMs from their protective package and check that the legs of theEPROMs are straight. Carefully insert the new EPROMs into their designated sockets.7. Switch the system ON and verify that it is operating. If the system fails to operate, switch thesystem OFF and replace the new EPROMs with the old ones. Contact your distributor ordealer for advice if you cannot fix the trouble by yourself.8. If the system operates satisfactorily, switch the memory backup switch ON and replace thecover. Reconnect the external battery, if installed.9. Program the system if required.