Removing The A4 Interface Assembly - HP E4418A Service Manual

Replaceable Parts
Assembly and Disassembly Guidelines

Removing the A4 Interface Assembly

1. Remove the A2 processor, A5 daughter and A6 measurement
assemblies as shown on page 5-9 and page 5-11.
2. Disconnect the line power module from the A1 power supply and
the chassis.
3. Disconnect the earth wire screw. (When replacing this screw use a
9 lb/in T15 screw driver.)
4. Remove the two screws on the underside of the deck assembly
then remove the assembly by sliding forward and tilting up from
the rear. (When replacing these screws use a 21 lb/in T15 screw
driver.)
5. Unscrew the HP-IB connector from the rear panel. (When
replacing these screws use a 6 lb/in 9/32 in socket.)
6. Disconnect the Recorder Output cable.
7. Lift the A4 interface assembly from the two standoffs and slide it
out.
5-10
screws
HP EPM-441A/442A Service Guide