Motherboard Replacement - Thermo Scientific 48i Instruction Manual

Motherboard
Replacement
Thermo Fisher Scientific
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Remove the I/O expansion board (optional), if used. See
Expansion Board (Optional)
3. Disconnect the digital output board ribbon cable from the
motherboard.
4. Using the nut driver, remove the two standoffs securing the board to
the rear panel (Figure
5. Pop off the digital output board from the mounting studs and remove
the board.
6. To install the digital output board, follow previous steps in reverse.
Use the following procedure to replace the motherboard
Equipment Required:
Motherboard
Philips screwdriver
Nut driver, 3/16-inch
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly ground antistatic wrist strap must
be worn while handling any internal component.
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Remove the I/O expansion board (optional), if used. See
Expansion Board (Optional)
3. Remove the digital output board. See
Replacement" on page 7-34.
4. Unplug all connectors from the motherboard. Note connector locations
to facilitate reconnection.
Replacement" on page 7-33.
7–16).
Replacement" on page 7-33.
"Digital Output Board
Model 48i Trace Level-Enhanced Instruction Manual
Servicing

Motherboard Replacement

"I/O
(Figure 7–15).
▲
"I/O
7-35