GE MAC 1200

GE Medical Systems MAC 1200 V 1.2 Page 22
Information Technologies 227 492 21 Rev F
2.5.2.3 Interface to the LCD Graphics Display
The interface to the LCD graphics display provides the LCD data signals, the display supply
voltages +5V and VEE, the display contrast voltage VO and the display on/off control
signal.
Connector denotation: HOS/
Type: Foil connector, 14- pin, zero power insertion, 180°
The LCD supply voltage VEE can be measured at R 731 on the PCB Control CS CI, the
LCD contrast voltage can be measured at R 730. Both levels of these voltages depend on
the contrast selected.
The voltage supply for the CCFL tube of the display is provided separately via the
connector BL/.
Caution! Do not touch! High AC voltage!
2.5.2.4 Interface to the keypad
The interface to the keypad is realized with the connector KEYB/. It contains the signals for
the keypad rows and columns, the supply and the conirol signals for the status LEDs of the
keypad. The foil connecting cable is part of the keypad itself.
Connector denotation: KEYB/
Type: Foil connector, 26- pin, zero power insertion, 180°,
grid 1.0mm, Molex
2.5.2.5 Interface to the printhead
The control data to the printhead is transferred via the flexible PCB Printhead Connection,
plugged into the connector TPC DAT/ on the PCB Control CS CI.
Connector denotation: TPC_DAT/
Type: male connector 1x 20-pin, 180°