Replace The Main Pca Board - Welch Allyn Spot Vital Signs 4400 Service Manual

Service manual
Attach the pump assembly to the main PCA board
Kit item:
• 105920, PUMP ASSEMBLY AND 2 T-10 TORX SCREWS
1. Place the pump manifold onto the main PCA board transducer. Ensure that the pump
manifold is fully seated on the transducer.
2. Connect the pump assembly connector to the main PCA board.
3. Turn over the main PCA board.
4. Secure the pump assembly to the main PCA board with 2 T-10 Torx screws.

Replace the main PCA board

Replace the main PCA board as needed after removing all other components. Before you begin,
ensure that you have the appropriate replacement kit items:
• 107184, SRV KIT, MAIN PCA, AND LCD FRAME
NOTE After installing a new PCA board, use the Welch Allyn Service Tool, Gold
Edition, to prepare the board for first-time use. This includes programming the
device serial number into the new board and performing an NIBP initialization
during full device functionality. See "Program the main PCA board" and "Initialize
the NIBP board" for more information. After replacing the main PCA board and
completing the full functional check, set the first boot option to Production
Complete using the service tool. This will set the device to prompt you to enter
the language, date and time on first boot. See "Service Tool Spot 4400 Help File" for
more information.
Disassembly and repair 55