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General Troubleshooting & Repair of the M400E Analyzer M400E Ozone Analyzer Operator’s Manual
258 04315 Rev. C1
13.10.4. METAL WOOL SCRUBBER OPTION
Contact T-API for instructions on replacing the optional Metal Wool Scrubber.
13.10.5. DISK-ON-CHIP REPLACEMENT PROCEDURE
Replacing the Disk-on-Chip, may be necessary in certain rare circumstances when a chip fails or when loading
new instrument software. This will cause all of the instrument configuration parameters to be lost. However a
backup copy of the operating parameters are stored in a second non-volatile memory and will be loaded into the
new the Disk-on-Chip on power-up. To change the Disk-on-Chip, follow this procedure.
1. Turn off power to the instrument.
2. Fold down the rear panel by loosening the thumbscrews on each side
3. Locate the Disk-on-Chip in the rightmost socket near the right hand side of the CPU assembly. Remove
the IC by gently prying it up from the socket.
4. Reinstall the new Disk-on-Chip, making sure the notch in the end of the chip is facing upward.
5. Close the rear panel and turn on power to the machine.
13.11. TECHNICAL ASSISTANCE
If this manual and its trouble-shooting / repair sections do not solve your problems, technical assistance may be
obtained from “
TELEDYNE-API, CUSTOMER SERVICE,
9480 CARROLL PARK DRIVE
SAN DIEGO, CALIFORNIA 92121-5201USA
Toll-free Phone: 800-324-5190
Phone: 858-657-9800
Fax: 858-657-9816
Email: api-sales@teledyne.com
Website: http://www.teledyne-api.com/
Before you contact customer service, fill out the problem report form in Appendix C, which is also available
online for electronic submission at http://www.teledyne-api.com/forms/.
USER NOTES: