IBM Aptiva 2144, Hardware Maintenance Service

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Serial Port
Mouse
Keyboard
Rapid Resume Power
On/Off Switch Connector
Modem Wake Up on Ring
Detect Connector
Speaker Connector
Pin Signal Name I/O
1 Data Carrier Detect I
Pin Signal Name
2 Receive Data I
1 AUX5
3 Transmit Data O
2 POWER_CNTRL
4 Data Terminal Ready O
3 Ground
5 Signal Ground
6 Data Set Ready I
7 Request To Send O
8 Clear To Send I
Pin Signal Name
9 Ring Indicator I
1 AUX5
2 Switch
Pin Signal Name I/O
1 Mouse Data I/O
2 No Connection
Pin Signal Name
3 Ground Power
1 AUX5
4
+
5 V dc Power
2 Key (not populated)
5 Mouse Clock I/O
3 EXT_WAKEUP
6 No Connection
4 Ground
Pin Signal Name I/O
Pin Signal Name
1 Data I/O
1, 2 Disabled
2 Mouse Data
3, 4 Enabled
3 Ground Power
4
+
5 V dc Power
5 Clock I/O
6 Mouse Clock
Parts/Test Point Locations
5-23