
26
Getting Started
Chapter 1
Disabling the
On/Stdby Switch
The front panel On/Stdby switch is disabled by removing surface mount 0
Ω
resistor located on the front monitor board (see Figure 1-6). The resistor is
labeled:
REM PWR JUMPER
.
Caution
After removing the 0
Ω
resistor, heat damage may prevent the
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
Ω
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.
Figure 1-6. Disabling the On/Stdby Switch
Location of
Resistor
Unplug
Unplug
Summary of Contents for E8402A
Page 8: ...10 Contents ...
Page 12: ...14 Notes ...
Page 14: ......
Page 26: ...28 Getting Started Chapter 1 ...
Page 42: ...44 Using the Enhanced Monitor Chapter 2 ...
Page 214: ...216 Servicing Your Mainframe Chapter 5 ...
Page 226: ...228 HP E8402 E8404A Product Specifications Appendix A ...