Omega Engineering OMB-CHARTSCAN 1400, User Manual

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Hardware 3-5
WARNING
WARNING WARNING
WARNING
Never disassemble ChartScan’s case while it is connected to the AC power line! Internal
voltage potentials exist which could cause bodily injury or death!
Prior to disassembly:
(1) turn off power
(2) disconnect analog lines
(3) disconnect AC power line
(4) disconnect all additional lines
WARNING WARNING WARNING WARNING
Never disconnect the AC power line from ChartScan while analog connections to an
external device exist! Common mode voltage potentials exceeding 60 VDC or 30 Vrms may
exist which could cause bodily injury or death!
CAUTION
CAUTION CAUTION
CAUTION
Use approved ESD precautions, including static-free work area and grounded wrist strap,
when handling circuit boards and electronic components. Failure to do so could cause
equipment damage due to electrostatic discharge.
1. Turn off the power, disconnect the analog cables, the power line cord, and then all other test cables from the
interface.
2. Remove two upper side screws (near front of unit) and slide top cover plate free of ChartScan unit. Remove the
expansion chassis, if applicable.
3. Locate memory SIMM sockets JP201 and JP202 on the microprocessor board. This board is mounted vertically
near the center of the ChartScan unit.
4. Remove the 256 KB module from JP201.
5. Install the applicable memory option according to the following table.
Memory Option JP201 JP202
CSN/MEM1 (1 MB) Insert a 1 MB module. Remains unoccupied.
CSN/MEM4 (4 MB) Insert a 4 MB module. Remains unoccupied.
CSN/MEM8 (8 MB) Insert a 4 MB module. Insert a 4 MB module.
Note: For re-assembly, first reconnect the AC power line, next reconnect the analog terminals, and then any
other cables, prior to reapplying power to the entire system.
6. Carefully reassemble the ChartScan unit.