Lenovo NetVista Hardware Maintenance Manual (HMM) for Aptiva, IBM PC300, and N - Page 135
System Board Connector Pin Signals, Monitor Port Signals
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System Board Connector Pin Signals Monitor Port Signals Pin Signal Name I/O Pin Signal Name I/O 1 Red Video O9 +5 V dc N/A 2 Green Video O 10 Synch Ground N/A 3 Blue Video O 11 No Connection N/A 4 No Connection N/A 12 Monitor ID Bit 1 I 5 Synch Ground N/A 13 Horizontal Synch O 6 Red Ground N/A 14 Vertical Synch O 7 Green Ground N/A 15 Monitor ID Bit 3 I 8 Blue Ground N/A Serial Port Signals Pin Signal Name I/O Pin Signal Name I/O 1 Data Carrier Detect I 6 Data Set Ready I 2 Receive Data I 7 Request To Send O 3 Transmit Data O8 Clear To Send I 4 Data Terminal O9 Ring Indicator I Ready 5 Signal Ground N/A Parallel Port Signals Pin Signal Name 1 Strobe 2 Data Bit 0 3 Data Bit 1 4 Data Bit 2 5 Data Bit 3 6 Data Bit 4 7 Data Bit 5 8 Data Bit 6 9 Data Bit 7 10 Acknowledge 11 Busy 12 Paper Empty 13 Select I/O Pin O 14 I/O 15 I/O 16 I/O 17 I/O 18 I/O 19 I/O 20 I/O 21 I/O 22 I 23 I 24 I 25 O Signal Name Auto Feed Error Initialize Select (In) Ground Ground Ground Ground Ground Ground Ground Ground I/O N/A I O O Power Power Power Power Power Power Power Power Mouse Port Signals Pin Signal Name 1 Mouse Data 2 No Connection 3 Ground I/O Pin I/O 4 N/A 5 Power 6 Signal Name +5 V dc Mouse Clock No Connection I/O Power I/O N/A 135