To Remove And Replace The Power Supply; To Remove And Replace The Cpu Board; Disk Drive Assembly; Power Supply - HP 1660E Series Service Manual

WARNING
Replacing Assemblies
To remove and replace the power supply
To remove and replace the power supply
1 Using previous procedures, remove the following assemblies:
• Handle
• Rear Feet
• Cover
• Disk Drive Assembly
Hazardous voltages eJdst on the power supply. To avoid electrical shock, disconnect the
power from the instrument before performing the following procedures. After disconnecting
________ the power, wait at least three minutes for the capacitors to discharge before continuing.
2 Lift the PCB locking pins out of the chassis.
3 Slide the power supply out far enough to reach the power supply cables, then
disconnect them from the power supply.
4 Slide the power supply the rest of the way out the side of the instrument.
5 Reverse this procedure to install the power supply.
Check that the following assemblies are properly installed before installing the power supply:
• LCD display
• Front Panel
• Switch Actuator
• CPU Board
To remove and replace the CPU board
1 Using previous procedures, remove the following assemblies:
• Handle
• Rear Feet
• Cover
• Disk Drive Assembly
• Power Supply
2 Disconnect the CPU board interface cable from the acquisition board by pressing
down on the cable release tabs on the cable socket located on the acquisition board.
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