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TELEDYNE API
M703E Calibrator Operator’s Manual General Troubleshooting & Repair of the M703E Calibrator
11.8.2. DISK-ON-CHIP REPLACEMENT PROCEDURE
NOTE
Printed circuit assemblies (PCAs) are sensitive to electro-static discharges too small to be felt by the
human nervous system. Failure to use ESD protection when working with electronic assemblies will
void the instrument warranty.
See Chapter 12 for more information on preventing ESD damage.
Replacing the Disk-on-Chip may be necessary in certain rare circumstances or to load 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 captive Phillips-head screws 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.
11.9. 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 92121-5201
USA
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:
05744 Rev B 203