ABB ScreenMaster SM1000 Replacing Instructions page 3

S C R E E N M A S T E R S M 1 0 0 0 , S M 2 0 0 0 A N D S M 3 0 0 0 | R E P L A C I N G T H E B AT T E R Y | I N F 0 5/ 9 0 R E V. E
4 Remove the main board – see Figure 3.
Note. Refitting is the reverse of removal.
Lift each end of the connection locking bar
carefully and disconnect the display flex-circuit
from the main board – see Note 1
Connection locking bar
Notes.
1. To disconnect the display flex-circuit, it may be necessary to remove the I/O module board in Slot D (if fitted).
2. SM2000 main boards manufactured before March 2005 have a 4-pin tochscreen flexi-circuit and a 4-pin connector block. Main boards
manufactured from March 2005 onwards are fitted with a 6-pin connector block. When reconnecting the touchscreen flex-circuit to a
main board equipped with a 6-pin connector block, ensure it is connected to the 4 pins nearest the front of the recorder.
Figure 3 Removing the main board
1
Slot D – see Note 1
SM2000 only – disconnect the touchscreen
2
from the main board – see Note 2
SM1000 only – disconnect the membrane switch
2
connector from the main board
SM1000 only – disconnect the
3
inverter connector from the
main board
4
Withdraw the main board
4
from the chassis
See Caution
Caution. When fitting a main board, ensure it
locates correctly in the lugs on the chassis
base.
3