GE Corometrics 126

Revision B 120 Series Maternal/Fetal Monitor 4-9
2015590-001
Theory of Operation: Main Motherboard
29 A5B Output Buffered Address Line
30 A7B Output Buffered Address Line
31 GND Output +5 Volt Power Ground Return
32 A9B Output Buffered Address Line
33 A11B Output Buffered Address Line
34 A13B Output Buffered Address Line
35 A15B Output Buffered Address Line
36 SP2B/ Output Spare Chip Select Line
37 SP4B/ Output Spare Chip Select Line
38 +5V Output +5 Volt Logic Supply
39 UDSB/ Output Buffered Upper Data Strobe
40 +5V Output +5 Volt Logic Supply
41 GNDI Output 20 V Ground
42 GNDI Output 20 V Ground
43 IRQ6/ Input Processor Interrupt Line
44 +20I Output +20 Volt Supply
45 +20I Output +20 Volt Supply
46 GND Output Digital Ground
47 GND Output Digital Ground
48 GND Output Digital Ground
49 GNDEL Output Ground Return
50 GNDEL Output Digital Ground
51 RXDC Input Main Bd. RXD Line for MSpO
2 Module
52 TXDB Output Main Bd. TXD Line for FSpO
2 Module
53 TXDC Output Main Bd TXD Line for MSpO
2 Module
54 RTSC Output Main Bd. RTS Line for MSpO
2 Module
55 RXDB Input Main Bd. RXD Line for FSpO
2 Module
56 +15us Output +15 Volts for Ultrasound
57 AGND Output Analog Ground
58 +15v Output +15 Volts Analog Supply
Table 4-5. DSP Board Connector J7 (Continued)
Pin Number Signal Name
Signal Type
(Relative To Main
Motherboard)
Signal Description