Repairing Programmer of TACHO PRO

Note: this repair programmer can only work for the tacho universal hand-held which we are selling now. It cannot work for machines we sold before or sold by other sellers.

Instructions

1. Open the mainframe of Tacho Pro by screwdriver.
2. Take off 386EX control board from mainframe.
3. Clamp the IC4(24C02) by SOP8 or take of IC111(29F040)/IC112 (29F040), and PLZ put 29040 into PLCC32 pedestal of programmer.
4. Connect power supply, press"SELECT IC" button to select right IC model.
5. Press "PROGRAM" button to start programmer until the "OK" light shines. It means the programmer is finished.
6. Switch off the power, then repeat the step to programmer the second IC and the third IC until finish all programmer.
7. Recover IC111 and IC112, then reinstall the 386EX., Then programmer is finished.