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Troubleshooting and Service Teledyne API – Model T700 Dynamic Dilution Calibrator
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9.7. SERVICE PROCEDURES
9.7.1. DISK-ON-MODULE REPLACEMENT PROCEDURE
Replacing the Disk-on-Module (DOM) will cause loss of all DAS data; it may also
cause some of the instrument configuration parameters to be lost 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 standoff clip 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 Disk-on-Module, 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.
9.8. TECHNICAL ASSISTANCE
If this manual and its service & repair section do not solve your problems, technical
assistance may be obtained from:
TELEDYNE API, CUSTOMER SERVICE,
9480 CARROLL PARK DRIVE
SAN DIEGO, CALIFORNIA 92121-5201
USA
Toll-free Phone: 800-324-5190
Phone: 858-657-9800
Fax: 858-657-9816
Email: api-customerservice@teledyne.com
Website: http://www.teledyne-api.com/
06873B DCN6388