Schiller AT-2 - Main Board MK 12-1

Page 4.12
SCHILLER AT-2 6-Channel ECG Unit
SERVICE HANDBOOK Issue 2.1 November 1998
Chapter 4
Module Removal and Replacement
Main Board MK 12-1
Prerequisite
 The Warnings and Cautions at the beginning of the chapter must be observed.
 The top assembly must be removed and all external cable assemblies disconnected.
 The printer and printer tray assembly must be removed
Tools and Equipment
Posi-drive screwdriver
Parts
Main board MK 12-1. Part number as detailed in Chapter 6.
Board Removal
WARNING
ENSURE THAT THE MAINS CABLE IS DISCONNECTED BEFORE COMMENCING
1. Disconnect the following connectors:
 live and the neutral bayonet connectors to the mains connector
 battery connector
2. Unscrew the 12 spacer fixations (four on the mains transformer) and remove the board.
Board Replacement
To replace the Main board MK 12-1 proceed as follows:
1. Position the board and secure at the 12 fixing points ( four on the mains transformer)
2. Connect the following:
 live and the neutral bayonet connectors to the mains connector
 live and the neutral bayonet connectors to the battery
3. Replace the paper tray and printer assembly and reassemble the unit.