Tacho Universal Hand-Held Repair Update Guide

Tacho Universal V2008.01 Update& Repair Kit can repair the following troubles: Screen display: Diga update and RESET, No display after powered on, No vehicle list, screen display black strip, Frequently Halting.Here is the update guide.

1.Remove the 8 screws, open the up cover, unplug the keyboard cable connector, and then remove the up cover as shown in the figure.

2 Remove the CPU BOARD as shown in the figure.

.3 Remove IC111 and IC112 as shown in the figure.

4 Remove AT24C02 as shown in the figure.

5 Remove PIC12F629 as shown in the figure.

6 Install IC111 and IC112. Make sure the install direction is correct. See the figure.

7 Install AT24C02. Make sure the install direction is correct.See the figure.

8 On your board, if there are not components in position 1 and 2, please remove component in position3. and then fix PIC12F629 onto the position on 1. fix OSC on the proper position in 2.

9 Install CPU BOARD. Make sure install it in correct direction. See the figure.

10.Install the up cover and then the 8 screws.