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Service Information 4
U2751A User’s and Service Guide 47
Upon replacing the relay(s), reset the relay cycle count to
zero by issuing the following SCPI command:
DIAGnostic:RELay:CYCLes:CLEar (@<ch_list>)
Separate the carrier and measurement
board.
There are 32 relays as shown.
Turn to the opposite side of the
measurement board and ensure that only the
defective relays are desoldered.