146 1100 Series WS MWS Reference Manual
4 Repairing the Sampler
MTP Main Board
Removing the MTP main board
1 In the user interface start the maintenance mode and select the “Change
Needle/Seat” function.
2 Switch off the sampler at the main power switch. Remove the power cable.
3 Remove the top cover, top plate, and foam (see “Top Cover and Foam" on
page 132).
4 Remove the plate tray from the tray base.
5 Remove the transport assembly, (see“Removing the sample transport" on
page 133).
6 Remove the connector screws at the back of the module.
7 Remove the M4 screw at the back of the module.
8 Disconnect all connectors on the MTP board
9 Slide the MTP main board out of the sampler.
When required When defective
Tools required 1/4 inch-5/16 inch wrench 8710-0510 (supplied in accessory kit)
4 mm open end wrench 8710-1534 (supplied in accessory kit)
Pozidrive screwdriver
Parts required G1367-66500 MTP main board
G1367-69500 Exchange MTP main board
CAUTION
The MTP board is sensitive to electrostatic discharge. Always use the ESD strap (see
“Using the ESD Strap" on page 107) when handling electronic boards.
NOTE
This procedure requires reloading the sampler firmware and reprogramming the instrument
serial number.
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