HP R3001US, R3065US, R3070US, R3060US, R3050US, R3056RS, R3050EA, R3060EA, R3057EA manual Table A-6 Serial

Page 55

Connector Pin Assignments

Table A-6

Serial

Pin

Signal

Pin

Signal

 

 

 

 

1

Carrier detect

6

Data set ready

 

 

 

 

2

Receive data

7

Ready to send

 

 

 

 

3

Transmit data

8

Clear to send

 

 

 

 

4

Data terminal ready

9

Ring indicator

 

 

 

 

5

Ground

 

 

 

 

 

 

A–4

Maintenance and Service Guide

Page 54 Page 56
Image 55
Page 54 Page 56
Contents Maintenance and Service Guide Page Contents Screw Listing Index Product Description Features External Components Component Function Front ComponentsRight-Side Components Rear components Rear Panel Components Left-Side Components Wireless Accessories Wireless AccessoriesDesign Overview Before Replacing Parts TroubleshootingPower Problems and Solutions Problems and SolutionsProblem Possible Cause Solution External Device Problems and Solutions Serial Number Location Illustrated Parts CatalogHP Notebook Expansion Base Major Components Description Number Spare PartHP Notebook Expansion Base miscellaneous components Receiver Item Description Number Power cordService Considerations Removal and Replacement PreliminariesTools Required Plastic Parts Preventing Electrostatic DamagePackaging and Transporting Precautions Workstation Precautions Grounding Equipment and Methods Material Use Voltage Protection Level Typical Electrostatic Voltage LevelsStatic-Shielding Materials Event 10% 40% 55%Removal and Replacement Procedures Serial Number Section Description Removed Disassembly Sequence ChartDisassembly Sequence Chart # of ScrewsPreparing the HP Notebook Expansion Base for Disassembly Spare Part Number Information Base PlateUpper Chassis Removing the rear cover Disconnecting the cables from the system board Reverse the above procedure to install the upper chassis Power Supply Reverse the above procedure to install the power supply System Board Reverse the above procedure to install the system board Front Tray Cover Reverse the above procedure to install the front tray cover Back Panel Expansion Cable Speaker Assembly Reverse the above procedure to install the speaker assembly Front Case HP Notebook Expansion Base SpecificationsInternal AC Adapter Power supplyTable A-1 RJ-45 Network Interface Connector Pin AssignmentsTable A-3 Universal Serial Bus Table A-2 RJ-11 ModemTable A-5 Audio Line-Out Table A-4 VideoTable A-6 Serial Table A-8 Table A-7 Pdif Audio Line-OutConductor Power Cord Set Power Cord Set RequirementsGeneral Requirements Country Accredited Agency Number Conductor Power Cord Set RequirementsCountry-Specific Requirements Applicable NoteBSI Screw Listing Head Table C-1 Phillips PM2.5×17.0 ScrewColor Qty Length Thread Width Table C-2 Phillips PM2.0×6.0 Screw Table C-2 Phillips PM2.0×6.0 Screw Table C-2 Table C-4 HM5.0×9.0 Standoff Table C-5 Phillips PM2.0×4.0 Screw Table C-5 Phillips PM2.0x4.0 Screw Table C-5 Phillips PM2.0×4.0 Screw Table C-5 Phillips PM2.0×4.0 Screw Table C-5 Phillips PM2.0×4.0 Screw Table C-6 Phillips PM2.0×2.0 Screw Index Index Maintenance and Service Guide Index-3
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