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Dell Precision M70, Service Manual

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 Pin Assignments for I/O Connectors  

Dell Precision™ M70 Service Manual

 

  

USB Connector 

 

  

Video Connector 

 

  

S-Video TV-Out Connector 

 

  

Serial Connector 

 

 

 

USB Connector  

  

 

Video Connector  

  

 

S-Video TV-Out Connector  

 

 

Pin 

 

 

Signal 

1 

USB5V+ 

2 

USBP

–

 

3 

USBP+ 

4 

GND 

 

 

Pin 

 

 

Signal 

 

 

Pin 

 

 

Signal 

1 

CRT_R  9 

5V+ 

2 

CRT_G  10  GND 

3 

CRT_B  11  MONITOR_DETECT

–

 

4 

NC 

12  DDC_DATA 

5 

GND 

13  CRT_HS 

6 

GND 

14  CRT_VS 

7 

GND 

15  DDC_CLK 

8 

GND 

 

 

 

 

Summary of Contents for Precision M70

Page 1: ...written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo and Dell Precision are trademarks of Dell Inc Microsoft and Windows are registered trademarks of Microsoft Corporation Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license Other trademarks and trade names may be used in this document to refer to either the entit...

Page 2: ... one is installed CAUTION Many repairs may only be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in Dell s product documentation or as directed by Dell s online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that cam...

Page 3: ...wdriver l Small plastic scribe l Flash BIOS update program floppy or CD Computer Orientation Screw Identification When you are removing and replacing components print this section as a tool to lay out and keep track of the screws The placemat provides the number of screws and their sizes 1 back 2 right 3 front 4 left Optional Module 1 each Modem 1 each Hard Drive 2 each ...

Page 4: ...sor Fan 1 each Keyboard 2 each Display Assembly 2 each Video Card Fan 1 each Display Latch 2 each Display Panel Cable 1 each Display Panel 8 each Speakers 1 each PC Card Reader 4 each Palm Rest 4 each 13 each System Board 3 each 1 each Smart Card Reader 1 each ...

Page 5: ...Great user manuals database on UserManuals info Back to Contents Page Internal card with Bluetooth wireless technology 1 each Button Board 2 each ...

Page 6: ... CD and turn on the computer Follow the instructions that appear on the screen The computer continues to boot and updates the new BIOS When the update is complete the computer automatically reboots 3 Press F2 during POST to enter the system setup program 4 Press Esc select Save changes and reboot and then press Enter to save configuration changes 5 Remove the flash BIOS update program floppy or CD...

Page 7: ...battery 3 Locate the small access door in the battery compartment 4 Press the latch on the small access door and lift the door out 5 Remove the screw holding the Bluetooth wireless technology card 6 Grasp the card and disconnect it from the connector cable 7 Remove the card from the computer CAUTION Before performing the following procedures read the safety instructions in your Product Information...

Page 8: ...Great user manuals database on UserManuals info Back to Contents Page 1 coin cell battery 2 screw for card with Bluetooth wireless technology 3 card with Bluetooth wireless technology ...

Page 9: ...k surface b Starting on the right side of the computer use a plastic scribe or flat blade screw driver to pry up the center control cover c Lift the center control cover away from the computer and lay it aside Back to Contents Page CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yoursel...

Page 10: ...ically turn off when you shut down your computer turn them off now 4 Turn off any attached devices and disconnect them from their electrical outlets 5 Disconnect the computer power cable from the wall outlet and then press the power button to ground the system board 6 Turn the computer over and remove the main battery 7 Open the small access door in the main battery compartment 8 Locate the coin c...

Page 11: ...n 16 Enter the system setup program and restore the settings you recorded in step 1 17 Properly dispose of the old battery See the safety instructions in your Product Information Guide Back to Contents Page NOTICE The connection to the replacement battery is keyed Do not force the connection NOTICE To connect a network cable first plug the cable into the network wall jack and then plug it into the...

Page 12: ...TICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as the back panel on the computer NOTICE Do not touch the microprocessor die Press and hold the microprocessor down on the substrate on which the die is mounted while turning the cam screw to prevent intermittent contact between the cam screw and microp...

Page 13: ...ng with step 5 4 Update the BIOS using a flash BIOS update program floppy or CD For instructions on how to flash the BIOS see Flashing the BIOS Back to Contents Page NOTICE Ensure that the cam lock is in the fully open position before seating the microprocessor module Seating the microprocessor module properly in the ZIF socket does not require force NOTICE A microprocessor module that is not prop...

Page 14: ...microprocessor thermal cooling assembly to the system board 6 Lift the microprocessor thermal cooling assembly straight up and remove it from the system board CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpaint...

Page 15: ...alling the Microprocessor Thermal Cooling Assembly 1 Place the microprocessor thermal cooling assembly directly down onto the system board Push straight down 2 Tighten the four captive screws labeled 1 through 4 in consecutive order Back to Contents Page ...

Page 16: ...connect the display cable using the pull tab and release the cable from the cable routing guides 6 Remove the antenna cable connector from its pocket on the computer base and then gently disconnect the connector 7 Lift the display straight up out of the computer base CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid el...

Page 17: ...ides and bottom away from the center of the panel to open the snaps 1 display 2 pull tab 3 display cable connector 4 antenna cable 5 computer base 6 system board connector for display cable CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by p...

Page 18: ...oth sides of the top display cable connector and pull the display cable connector away from the top flex cable connector NOTE Do not crimp or crunch cables during reinstallation 1 M2 5 x 5 mm screws 6 4 display panel 2 display bumpers 6 5 M2 x 3 mm screws 8 3 display bezel 6 M2 x 3 mm display cable ground screw CAUTION Before performing the following procedures read the safety instructions in your...

Page 19: ... disconnect the bottom flex cable connector from the inverter display cable connector Back to Contents Page 1 top flex cable connector 2 top display cable connector 3 tabs 1 inverter flex cable 2 inverter display cable connector 3 pull tab on bottom flex cable connector ...

Page 20: ... cable connector 7 Lift the fan straight up out of the computer Removing the Video Card Fan 1 Follow the instructions in Preparing to Work Inside the Computer 2 Remove the display assembly 3 Remove the keyboard 4 Remove the palm rest CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yours...

Page 21: ...UserManuals info 5 Remove the M2 5 x 5 mm screw from the bottom right corner of the fan 6 Disconnect the fan cable connector 7 Lift the fan straight out of the computer Back to Contents Page 1 M2 5 x 5 mm screw 2 fan cable connector ...

Page 22: ...do not touch the metal housing of the hard drive CAUTION Before working inside your computer read the safety instructions in your Product Information Guide NOTICE To prevent data loss shut down your computer before removing the hard drive Do not remove the hard drive while the computer is on in standby mode or in hibernate mode NOTICE Hard drives are extremely fragile even a slight bump can damage...

Page 23: ...Great user manuals database on UserManuals info Back to Contents Page ...

Page 24: ...t an angle and slightly back to allow access to the keyboard connector d Pull up on the keyboard connector tab to disconnect the keyboard connector from the system board CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching...

Page 25: ...Great user manuals database on UserManuals info Back to Contents Page 1 M2 5 x 5 mm screws 2 2 keyboard 3 palm rest 4 keyboard tabs 5 ...

Page 26: ...ect the system board connector from the system board 7 Disconnect the touch pad connector from the system board CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as the back panel on the ...

Page 27: ...te the palm rest from the computer base 9 Lift the palm rest pulling apart the snaps on the base Back to Contents Page 1 touch pad connector 2 system board connector 3 computer base NOTICE Carefully separate the palm rest from the computer base to avoid damage to the palm rest ...

Page 28: ...reader to the system board 6 Use the pull tab to disconnect the PC Card reader connector from the system board 7 Lift the PC card reader straight up out of the computer Back to Contents Page CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by ...

Page 29: ...ervice Manual USB Connector Video Connector S Video TV Out Connector Serial Connector USB Connector Video Connector S Video TV Out Connector Pin Signal 1 USB5V 2 USBP 3 USBP 4 GND Pin Signal Pin Signal 1 CRT_R 9 5V 2 CRT_G 10 GND 3 CRT_B 11 MONITOR_DETECT 4 NC 12 DDC_DATA 5 GND 13 CRT_HS 6 GND 14 CRT_VS 7 GND 15 DDC_CLK 8 GND ...

Page 30: ...rManuals info Serial Connector Back to Contents Page S Video Pin Signal 1 GND 2 GND 3 DLUMA L 4 DCRMA L Composite Video Pin Signal 5 SP_DIF 6 DCMPS L 7 SP_DIF Pin Signal Pin Signal 1 DCD 6 DSR 2 RXDA 7 RTS 3 TXDA 8 CTS 4 DTR 9 RI 5 GND ...

Page 31: ...rom the system board 6 Remove the single M2 x 3 mm screw in the neck of the smart card reader 7 Lift the smart card reader slightly and slide it out from under the tabs holding it in place Back to Contents Page CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist gr...

Page 32: ...om the speakers 7 Disconnect the speaker cable from the system board Back to Contents Page CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as the back panel on the computer NOTICE Handl...

Page 33: ...move the palm rest 8 Remove the video card thermal cooling assembly 9 Remove the microprocessor thermal cooling assembly 10 Remove the video card fan 11 Remove the microprocessor fan 12 Remove the memory 13 Remove the microprocessor 14 Remove the hard drive 15 Remove the smart card reader 16 Remove the PC Card carrier 17 Remove the speakers 18 Remove the two M2 5 x 5 mm screws from the button boar...

Page 34: ... the system board to the computer base 21 Remove the system board from the computer base a Ensure that you have disconnected all cables from the system board b Gently lift the board starting from the left side and then pull to the left to dislodge the audio connectors from the holes in the base 1 M2 x 3 mm screw 2 system board support 1 M2 5 x 5 mm screws 3 ...

Page 35: ... into the appropriate drive Follow the instructions that appear on the screen Back to Contents Page NOTE You may need to press outward on the base near the audio connectors to provide enough clearance for the audio connectors NOTICE Before turning on the computer replace all screws and ensure that no stray screws remain inside the computer Failure to do so may result in damage to the computer NOTE...

Page 36: ...noted each procedure in this document assumes that a part can be replaced or if purchased separately installed by performing the removal procedure in reverse order 1 display assembly 11 optical drive 2 display cable 12 battery 3 center control cover 13 computer base 4 keyboard 14 speakers 5 palm rest 15 hard drive 6 video card assembly 16 PCMIA card slot 7 video card assembly fan 17 smart card rea...

Page 37: ...t Corporation Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own Model PP02X February 2005 Rev A00 Back to Contents Page NOTE A...

Page 38: ...rews from the options cover bottom door and lift the cover 3 If you are replacing a memory module remove the existing module a Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up b Remove the module from the connector CAUTION Before working inside your Dell computer read the safety instructions in your Product Informa...

Page 39: ...the memory module connector until the module pops up b Remove the module from the connector 1 securing clips 2 per connector 2 memory module NOTE If the memory module is not installed properly the computer does not boot The Num Lock and Scroll Lock lights blink about 10 times NOTICE If the memory module cover is difficult to close remove the module and reinstall it Forcing the cover to close may d...

Page 40: ...s l Click the Start button click Help and Support and then click Computer Information l Access the System Setup Program by pressing F2 immediately when the DELL logo appears If you wait too long and the Windows logo appears continue to wait until you see the Windows desktop Then shut down your computer and try again See Using the System Setup Program in your User s Guide Mini PCI Card If you order...

Page 41: ... 4 If you are replacing a Mini PCI card remove the existing card a Disconnect the Mini PCI card from any attached cables b Release the Mini PCI card by spreading the metal securing tabs until the card pops up slightly c Lift the Mini PCI card out of its connector 1 captive screws 2 2 options cover 1 antenna cables 2 2 metal securing tabs 3 Mini PCI card connector 4 Mini PCI card ...

Page 42: ...t the modem out of its connector on the system board and disconnect the modem cable 1 Mini PCI card connector 2 Mini PCI card 3 antenna cables 2 NOTICE To avoid damaging the Mini PCI card never place cables on top of or under the card NOTICE The connectors are keyed to ensure correct insertion If you feel resistance check the connectors and realign the card NOTE If the Mini PCI card s antenna cabl...

Page 43: ...l your device in the module bay you can install the device screw If the Device Screw Is Not Installed 1 Press the device latch release so that the latch release pops out 1 modem cable 2 modem 3 pull tab 4 screw 5 system board connector NOTICE Cable connectors are keyed for correct insertion do not force the connections NOTICE To prevent damage to the modem press the modem into the connector direct...

Page 44: ...our docking device for instructions 2 Close the display and turn the computer over 3 Use a 1 Phillips screwdriver to remove the M2 x 3 mm screw from the bottom of the computer 4 Press the device latch release so that the latch release pops out 1 device latch release NOTICE To prevent damage to devices place them in a safe dry place when they are not installed in the computer Avoid pressing down on...

Page 45: ...als database on UserManuals info 5 Pull the device by the latch release to remove the device from the module bay Back to Contents Page NOTICE Insert devices into the module bay before you dock and turn on the computer ...

Page 46: ...o card thermal cooling assembly to the system board 6 Lift the video card assembly straight up and out of the computer Back to Contents Page CAUTION Before performing the following procedures read the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface s...

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