Filter
Top Products
Teledyne API M100E Analyzer Operation Manual Troubleshooting & Repair
279
12.7. REPAIR PROCEDURES
This section contains some procedures that may need to be performed when a major component of the analyzer
requires repair or replacement.
CAUTION
Servicing of circuit components requires electrostatic discharge protection, i.e. ESD
grounding straps, mats and containers. Failure to use ESD protection when working
with electronic assemblies will void the instrument warranty. Refer to Chapter 13 for
more inform
ation on pre
venting ESD damage.
12.7.1. DISK-ON-MODULE (DOM) REPLACEMENT
Replacing the Disk-on-Module (DOM) will cause loss of all iDAS data; it also may cause loss of some instrument
configuration parameters unless the replacement DOM carries the exact same firmware version. Whenever
changing the version of installed software, the memory must be reset. Failure to ensure that memory is reset can
cause the analyzer to malfunction, and invalidate measurements.
After the memory is reset, the A/D converter must be re-calibrated, and all information collected in Step 1 below
must be re-entered before the instrument will function correctly. Also, zero and span calibration should be
performed.
1. Document all analyzer parameters that may have been changed, such as range, auto-cal, analog output,
serial port and other settings before replacing the DOM
2. Turn off power to the instrument, fold down the rear panel by loosening the mounting screws.
3. When looking at the electronic circuits from the back of the analyzer, locate the Disk-on-Module in the right
most socket of the CPU board.
4. The DOM should carry a label with firmware revision, date and initials of the programmer.
5. Remove the nylon fastener that mounts the DOM over the CPU board, and lift the DOM off the CPU. Do
not bend the connector pins.
6. Install the new DOM, making sure the notch at the end of the chip matches the notch in the socket.
7. It may be necessary to straighten the pins somewhat to fit them into the socket. Press the DOM all the way
in and reinsert the offset clip.
8. Close the rear panel and turn on power to the machine.
9. If the replacement DOM carries a firmware revision, re-enter all of the setup information.
04515F DCN6048