Disabling The On/Stdby Switch - HP E8402A User And Service Manual

Disabling the
On/Stdby Switch
Caution
26 Getting Started
The front panel On/Stdby switch is disabled by removing surface mount 0
resistor located on the front monitor board (see Figure 1-6). The resistor is
labeled: REM PWR JUMPER
Figure 1-6. Disabling the On/Stdby Switch
After removing the 0
resistor from being re-installed to re-enable the On/Stdby
switch.
To access the Monitor Display Board and resistor:
1. Turn off the mainframe and remove the power cord.
2. Remove the mainframe cover by removing the 10 m3x6 flat head torx
screws.
3. Remove the 0 resistor by heating both sides simultaneously with
soldering irons. Separate the resistor from the board by gently
pressing the tips of the soldering irons together.
4. Save the resistor in order to re-enable the On/Stdby switch. Again,
heat damage may prevent the resistor from being re-installed.
.
Unplug
Unplug
Location of
Resistor
resistor, heat damage may prevent the
Chapter 1