Revision B 120 Series Maternal/Fetal Monitor 4-11
2015590-001
Theory of Operation: Main Motherboard
89 LDSB/ Output Processor Lower Data Strobe
90 R/WB/ Output Processor Read/Write Line
91 No Connection — —
92 CKD Output Processor Clock Line 16/20 MHz
93 +5v Output +5 Volts Logic Power
94 +20I Output +20 Volts
95 RESFP/ Output Front Panel Reset Line
96 GNDI Output +20 V Ground
97 +12EL Output +12 EL Panel Supply
98 +12EL Output +12 EL Panel Supply
99 GNDEL Output EL Panel Ground Return
100 GNDEL Output EL Panel Ground Return
Table 4-5. DSP Board Connector J7 (Continued)
Pin Number Signal Name
Signal Type
(Relative To Main
Motherboard)
Signal Description
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