SEPDISP56: Installation and modification for Porsche 987 and 997 LCD display
Back to product Seleziona lingua: SEPDISP56 Porsche 987 and 997 display installation WARNING! The repair should be carried out only by qualified and competent staff. Before installing the new SEPDISP28N display, please read carefully the following instructions. Our technicians, for illustrative purposes only, have made a video tutorial about how to repair the odometer. DON’T SKIP ANY STEP. Watch the video tutorial Download the printable PDF INSTALLATION OF THE DISPLAY “SEPDISP56” AND OF THE BACKLIGHT SHEET Replace the display in an ambient temperature of 25 °C. Replace the backlight placed under the original LCD with the one supplied with the Minitools part to avoid chromatic discrepancies. Replace the backlight placed under the original LCD with the one supplied with the Minitools part to avoid chromatic discrepancies. To watch it, click on the button below. Video 1 Remove the original display. 2 Undo and remove the diffuser and the pink original backlight. 3 Fit and secure the new Minitools backlight. 4 Re-insert the diffuser. 5 Fit the new Minitools display After replacing the LCD, switch on the cluster (pin nº 1 negative, pin nº 2 positive) and, with a multimeter, measure the voltage on the PCB on which the display is connected, between the points A and B indicated in picture 1. If the voltage measured is between 11,95 V and 12,05 V, no modification is necessary; If the voltage detected is, instead, lower than 11,95V or higher than 12,05V, it is necessary to do the modification described in the following paragraph “EEPROM MODIFICATION“. EEPROM MODIFICATION NOTE: For this modification it is necessary to use an EEPROM programmer. We recommend our SEP-EECLIP. • First, set the programmer reading in 8 bit hexadecimal (HEX) . • De-solder the 93LC86 EEPROM (highlighted in picture 2), which is located inside the metal enclosure on the rear side of the display PCB. • ATTENTION: Make a backup of the de-soldered EEPROM, before the modification. • To reach a voltage between 11,95V and 12,05V, it is necessary to modify the value of the location 0240. Please note that decreasing these locations by 1 HEX unit, the variation will be +0,00625V, or vice versa. If not familiar with hexadecimal calculation, it is possible to use the calculation tool in the box beside, simply typing in the values. VERIFICATION Once these modifications have been done, measure again the voltage between the points A and B and check that it actually is between 11,95V and 12,05V. If not, increase or decrease the location until the value is as close as possible to the correct range. Video Tutorial How to replace Porsche 911 997, Boxster 987 and Cayman 987 instrument clusters faulty LCD display