HP 3455A Operating And Service Manual page 155

Model 34554
SERVICE GROUP D
8-D-1. OHM TROUBLESHOOTING (SCHEMATIC 1, 4).
8-D-2. Ohms Circuit tsolation.
8-D-4. Ohms Servicing.
8-D-5. The following checks may be useful if the ohms function is completely inoperative.
a. Set the 3455A to the 2 wire ohms function, 1 K ohms range, and Auto-Cal off.
Section VIII
8-65