Back Panel And Connectors - Agilent Technologies 5975C TAD VL MSD Troubleshooting And Maintenance Manual

Back Panel and Connectors

The back panel
and several status LEDs. Most of these components are part of the AC board or
the LAN/MS control card and extend through the back panel.
High vacuum control (HIVAC SIGNAL) connector
The high vacuum signal connector is on the AC board. See
control"
High vacuum power (HIVAC POWER) connector
The high vacuum power connector carries power for the diffusion pump
heater or the turbo controller from the AC board.
Primary fuses
The primary fuses limit current into the MSD in case of a short circuit in the
foreline pump. The primary fuses are on the AC board.
Power cord receptacle
The AC power cord brings in all electrical power for the MSD. The power cord
can be detached from the MSD.
Foreline pump power cord receptacle
The foreline pump power cord receptacle provides AC power for the foreline
pump. If the power switch is off, no power is supplied to the foreline pump.
Remote start connector
The remote start connector is the external connector for the remote start
circuitry on the LAN/MS control card. It receives remote start signals from the
GC.
5975 Series MSD Troubleshooting and Maintenance Manual
(Figure 52) contains several connectors, the primary fuses,
on page 221 and "Diffusion pump control"
Electronics
"Turbo pump
on page 221.
8
225