Before installing the new SEPDISP display, please read the following instructions carefully. For illustrative purposes, our technicians have produced a video tutorial on how to carry out the odometer repair.
DO NOT SKIP ANY STEPS.
NOTE: For this modification, it is necessary to use an EEPROM programmer.
We recommend our SEP-EECLIP.
• De-solder the 93C86 EEPROM from the PCB;
• Set the programmer reading in hexadecimal (HEX);
ATTENTION: make a backup of the EEPROM, before the modification.
• To reach a voltage between 7.7V and 7.8V, identify the 01E4, 01E5, 01E6 and 01E7 locations and modify their values: increasing or decreasing the 4 locations values by 1 HEX unit, the variation will be +/- 0.09 V.
If not familiar with hexadecimal calculation, it is possibile to use the calculation tool in the box beside, simply typing in the values.
Once these operations have been done, solder back the 93C86 EEPROM on the PCB, switch on the instrument cluster and check again the tension between points A and B.
Verify, then, if a voltage between 7.7V and 7.8V has actually been reached. If not, decrease or increase the value of the location until the voltage is between that range.
WARNING: if the VOLTAGE HAS NOT CHANGED at all after the EEPROM modification, see the following page “PROBLEMS AND SOLUTIONS”.
If you’ve done the modification on an instrument cluster with the “PCB1” and the voltage has NOT changed, please CONTACT US by e-mail at [email protected].
If you’ve done the modification on an instrument cluster with the “PCB2” instead, and the voltage has NOT changed FOLLOW THE INSTRUCTIONS shown in the following paragraph “EEPROM MODIFICATION”.
NOTA: For this modification, it is necessary to use an EEPROM programmer.
We recommend our SEP-EECLIP.
• De-solder the 93C86 EEPROM from the PCB;
• Set the programmer reading in hexadecimal (HEX);
ATTENTION: make a backup of the EEPROM, before the modification.
• To reach a voltage between 7.7V and 7.8V, identify the 01E4, 01E5, 01E6 and 01E7 locations and modify their values: increasing or decreasing the 4 locations values by 1 HEX unit, the variation will be +/- 0.09 V (or vice
versa).
If not familiar with hexadecimal calculation, it is possibile to use the calculation tool in the box beside, simply typing in the values.
Once these operations have been done, solder back the 93C86 EEPROM on the PCB, switch on the instrument cluster and check again the tension between points A and B.
Verify, then, if a voltage between 7.7V and 7.8V has actually been reached. If not, decrease or increase the value of the location until the voltage is between that range.
WARNING: if the VOLTAGE HAS NOT CHANGED at all after the EEPROM modification, CONTACT US.
