Disk-On-Chip Replacement; Flash Chip Replacement Or Upgrade - Teledyne 100E Instruction Manual

Model 100E Instruction Manual

11.6.1. Disk-on-Chip Replacement

Replacing the Disk-on-Chip (DOC) will cause all of the instrument configuration
parameters to be lost unless the replacement chip carries the exact same firmware
version. If the analyzer is equipped with at least one EEPROM flash chip, the
configuration settings are stored in a backup file on the EEPROM. It is recommended to
document all analyzer parameters that may have been changed, such as calibration,
range, auto-cal, analog output, serial port and other settings before replacing the chip.
• Turn off power to the instrument, fold down the rear panel by loosening the
mounting screws.
• When looking at the electronic circuits from the back of the analyzer, locate the
Disk-on-Chip in the right-most socket of the CPU board. The chip should carry a
label with firmware revision, date and initials of the programmer. Remove the IC
with a dedicated IC removal tool or by gently prying it up from the socket. Do not
bend the connector pins.
• Install the new Disk-on-Chip, making sure the notch at the end of the chip
matches the notch in the socket. It may be necessary to straighten the pins
somewhat to fit them into the socket. Press the chip all the way in.
• Close the rear panel and turn on power to the machine.
Generally, all of the setup information will need to be re-entered, unless the firmware
revision has not changed and the analyzer is equipped and properly configured with an
EEPROM chip. 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. Note especially that the A/D converter must be re-calibrated,
and all information collected in step 1 above must be re-entered before the instrument
will function correctly.

11.6.2. Flash Chip Replacement or Upgrade

The M100E CPU board can accommodate up to two EEPROM flash chips. The standard
configuration is one chip with 64 kb of storage capacity, which is used to store a backup
of the analyzer configuration as created during final checkout at the factory. Replacing
this chip will erase that backup configuration, which will be replaced with a new copy
when restarting the analyzer. However, if the firmware and/or the DOC is changed at the
same time, all analyzer configuration settings and iDAS data will be lost. In this case,
refer to the previous section on how to back up your settings. Adding a second EEPROM
chip to the existing chip will double memory but this procedure will require a BIOS
configuration. Contact the factory for details.
• Turn off power to the instrument, fold down the rear panel by loosening the
mounting screws.
• When looking at the electronic circuits from the back of the analyzer, locate the
EEPROM chip in the left-most socket of the CPU board. The chip is square with one
corner cut off, the socket is shaped accordingly. Remove the old chip by using a
045150102 Rev XB1
TROUBLESHOOTING & REPAIR
219