Using The Remote Power-On Pins - HP E8400A C-Size VXI Mainframe User And Service Manual

Using the Remote
Power-On Pins
Disabling the On/Stdby
Figure 1-2. Disabling the On/Stdby Switch by Removing R108
12 Using the HP E8400A Mainframe
The remote power-on pins (pins 5 and 18) allow you to turn the mainframe
on and off without using the front panel On/Stdby switch. With the
On/Stdby switch in the Stdby (off) position, connecting pin 5 to pin 18 on
the diagnostic connector turns the mainframe on. Disconnecting pin 5 from
pin 18 turns the mainframe off.
Figure 1-1. Remote Standby Switch Wiring.
The front panel On/Stdby switch is disabled by removing surface mount
resistor R108 located on the basic monitor board (Figure 1-2).
Switch
location of R108
m3x6 flat head torx screws
(five per side)
Chapter 1