Service and Maintenance 2
Keysight U3606B Service Guide 117
8 Remove the top layer circuit board. Loosen the four captive screws in the top
layer circuit board with a T20 Torx driver and remove the top layer circuit
board. Remove the protective metal sheet as well.
9 Disconnect the individual wires (label 1 to 4) from the bottom layer circuit
board as shown below.