7-8 11713 Operating and Service Manual
Replacing Major Assemblies
A1 Interconnect and Power Supply Assembly Removal/Replacement
A1 Interconnect and Power Supply Assembly
Removal/Replacement
CAUTION
This module contains components that can be damaged or destroyed by
electrostatic discharge. It should be serviced at a static-safe
workstation. Refer to "Preparing a Static-Safe Work Station" in
Chapter 8.
To Remove the A1 Interconnect/Power Supply Assembly
1. Remove the top and bottom covers. Refer to "Module Cover
Removal/Replacement".
2. Remove the front and the rear panel from the module.
3. Using their individual rings, pull the four boards, A2 driver, A3
latch, A4 remote local logic, and A5 GPIB assemblies from their
sockets one at a time.
4. Disconnect both ribbon cables from the front and rear panels to the
A1 interconnect/power supply assembly.
5. Disconnect the power transformer connector.
6. Remove the power transformer by removing the four mounting
screws, nuts, and washers.
7. Unscrew the ten small screws and three large screws to separate the
A1 interconnect/power supply assembly from its frame
To Replace the A1 Interconnect/Power Supply Assembly
1. Replace the 3 large screws and the ten small screws that secure the
assembly to the frame.
2. Replace the four long mounting screws with the corresponding nuts
and washers to install the power transformer onto the board.
3. Connect the power transformer connector onto its matching
connector.
4. Connect both ribbon cables from the A1 interconnect/power supply
assembly to the front and rear panels.
5. Assemble the front and rear panel to the frame using four screws for
each panel.
6. Install all four boards, A2 driver, A3 latch, A4 remote local logic, and
A5 GPIB assemblies into their sockets.
7. Replace the module covers.
