Flash Chip Replacement Or Upgrade; O 3 Generator Replacement - Teledyne 200E Instruction Manual

Troubleshooting & Repair
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.
• Reinstall 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. Gently but firmly press the chip all the way in.
Do not bend the pins.
• Close the rear panel, replace the cover and turn on power to the machine.
Generally, all of the setup information will need to be re-entered, including analog input and
output calibration unless the firmware revision has not changed and the analyzer is
equipped and properly configured with an EEPROM chip. 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. The analyzer typically issues an
ANALOG CALIBRATION WARNING if the analog circuitry was not calibrated within 10
minutes after restart.

11.6.2. Flash Chip Replacement or Upgrade

The M200E 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 the analyzer
configuration as created during final checkout at the factory. Replacing this chip will erase
that configuration, which will be recreated 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. Adding a second EEPROM chip to the
existing chip will double memory but this procedure will require a BIOS configuration and is
not a standard sales option. Also make sure that you receive a fully formatted EEPROM chip
for replacement. Contact the factory for details.
• Ground yourself to prevent electrostatic damage to electronic components.
• Turn off power to the instrument, fold down the rear panel by loosening the
mounting screws. If necessary, lift the cover to prevent the rear panel connectors
from brushing against it.
• 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 almost square
with one corner cut off, the socket is shaped accordingly and the chip is recessed
into the socket. Remove the old chip by using a special tool or gently pry the chip
out using a very fine screwdriver. Make sure not to bend or destroy any of the
contacts of the socket. When upgrading the CPU with a second chip, no removal is
necessary as the second socket should be empty.
• Reinstall the new or additional EEPROM chip, making sure the cut-off edge matches
that of the socket. Press the chip symmetrically and straight all the way in.
• Close the rear panel and cover and turn on power to the machine.
• If a front panel message Flash Format INVALID appears on start-up, the EEPROM
was not properly formatted. Contact the factory for a proper replacement.
11.6.3. O Generator Replacement
3
The ozone generator is a black, brick-shaped device with printed circuit board attached to
its rear and two tubes extending out the right side in the front of the analyzer. To replace
the ozone generator:
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Model 200E Instruction Manual
044100102 Rev A