General Disassemble 8 
168 Agilent U1602B/U1604B User’s and Service Guide 
To dismantle system boards
1 Perform the following procedures:
• To remove stand
• To remove battery pack
• To remove handler 
• To remove front and rear casing
2 The front view of the PCBA board is shown in Figure 8- 10. Turn over 
the PCB assembly board with the LCD display facing downward and 
remove the screw at the location as pointed in Figure 8- 13.
Figure 8-13 Remove the six screws and pull the ribbon cable from the PCBA board
3 Gently disconnect the ribbon cable of the LCD display from the PCBA 
board.
4 Unplug the pin connectors at both side of the PCBA board as pointed 
in Figure 8- 13.
5 Gently segregate both the PCBA boards from each other. 
• The first PCBA board with LCD display unit attached is the multimeter 
measurement board.
• The second PCBA board is the scope measurement board.
Ribbon Cable
Pin Connectors