Joe's KeyMaker 7 USB Diagnostics
Hopefully you will not need to use this, however if you
suspect your KM7 has been damaged, this will reassure you that it is not
or confirm your worst fears.
Access to Diagnostic is from the main menu, Command 7
There are 2 different Diagnostic tests;
Test 1, is for testing all 4 EEPROM signal pins on KM7.
Test 2, is for testing only 2 EEPROM signal pins on KM7.
If test 1 returns FAILED and you are absolutely certain
that you have connected the wires for the test correctly [see photos
below], then there your KM7 has damaged signal lines, however you may be
lucky and some functionality remains.
Only 93C46 EEPROM types need all 4 signals which is what
Test 1 checks.
LSI, 24RF08, 24C01 and 24C03 EEPROMS only need 2 signal
lines - which is what Test 2 checks.
If both Test 1 and Test 2 fail, the board cannot
continue to be used for Password recovery or Clear, it is confirmed
damaged, all EEPROM signal pins have suffered some damage, email me to
arrange repairs.
If Test 1 returns FAIL and Test 2 returns PASS then the
board is damaged but not all signal lines are damaged, you can still use
your KM7 to work on LSI, 24RF08, 24C01 and 24C03 EEPROM types but you
cannot work with 93C46 EEPROM.
Diagnostic - Test 1
the 4 way cable is used, the end with all wires together
in one header is used first, 4 way wire is plugged in over the KM7 I2C
connector, RED wire goes over the VCC pin
next the single end of the YELLOW wire is plugged in
over the pin labeled 3 on the KM7 board
next the single end of the WHITE is plugged in over the
pin labeled 2 on the KM7 board
NOTE: RED and BLACK wire single ends are NOT connected.
We are ready to conduct the test - type in Y for yes
the test can result in PASS
or FAIL
Read the page for Replacing
damaged KeyMaker board
Diagnostic - Test 2
The 4 way cable is used, the end with all
wires together in one header is used first, 4 way wire is plugged so that
only 1 wire, the WHITE wire is plugged in over the KM7 I2C connector's SCL
pin.
next the single end of the WHITE wire is
plugged in over the pin labeled SDA on the KM7 board
NOTE: RED, BLACK and yellow wire single ends are NOT
connected.
We are ready to conduct the test - type in Y for yes
the test can result in PASS
or FAIL
Read the page for Replacing
damaged KeyMaker board
Disclaimer
I make no warranty that any of my
information is correct, or safe, or does or does not breach any warranty
clause, or anything else, it is up to you to decide if you will
follow all or any of the instructions to recover the Supervisor Password
from a TP. It is up to you to decide, I am not responsible for the
results or for any consequential or incidental damages whatsoever.
