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Dell Latitude CP Service Manual

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  • Page 1 ® Š Š...
  • Page 2 Intel Corporation; IBM is a registered trademark of International Business Machines Corporation. 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 Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

  • Page 3: Table Of Contents

    Running the Dell Diagnostics........3-9...
  • Page 4 Hard-Disk Drive Assembly ........4-15 Memory Module Cover ........4-16 Memory Modules .
  • Page 5 Figure 4-3. Screw Identification....... . . 4-3 Figure 4-4. Disconnecting an Interface Cable ..... . 4-4 Figure 4-5.
  • Page 6 A prerequisite for using this manual to service Dell computer systems is a basic ® knowledge of IBM -compatible PCs and prior training in IBM-compatible PC troubleshooting techniques. In addition to information provided in this manual and the User’s Guide that came with the system, Dell provides the Diagnostics and Troubleshooting Guide for troubleshooting procedures and instructions on using the Dell diagnostics to test the computer system.
  • Page 7 This chapter provides an overview of the features and specifications of the ® ® Dell Latitude CP and CPi portable computers. In addition to the standard features found in a Dell portable computer, the Latitude CP and CPi include the following new features: ® ® A Mobile Intel Pentium...

  • Page 8: System Features

    A BIOS that resides in flash memory and that can be upgraded by diskette if required. A PS/2-compatible touch pad with full mouse functionality. Hardware and software support for the Dell Latitude C/Port Advanced Port Replicator (APR) and Latitude C/Dock Expansion Station. For a complete list of system features, see “Technical Specifications” found later in this chapter.
  • Page 9 fan outlet parallel connector speaker USB connector docking connector door security cable slot docking connector hard-disk drive serial connector monitor connector PS2 connector PC Card slot infrared port )LJXUH  %DFN 9LHZ RI WKH &RPSXWHU memory module cover modular bay latch battery bay latch hard-disk drive )LJXUH  %RWWRP 9LHZ RI WKH &RPSXWHU...

  • Page 10: Power Indicator

    )LJXUH  ,QGLFDWRU 3DQHO The Latitude CP or CPi computer has three indicators on the display assem- bly’s indicator panel and three on the keyboard assembly. The following subsections describe the functions of these indicators.

  • Page 11: Post Error Codes

    Refer to “POST Error Codes” in Chapter 3 for a listing of these codes. Pressing the power button on the Latitude CP or CPi computer, C/Dock Expan- sion Station, or the C/Port APR initiates a change from the current power state to a different state.
  • Page 12 Generated by the hard-disk drive to indicate that it requires the attention of the microprocessor IRQ15 Generated by the CD-ROM drive in the modular bay to indicate that the drive requires the attention of the microprocessor Dell Latitude CP and CPi Service Manual...
  • Page 13 Latitude CP M233ST Latitude CP M233SD Latitude CP M166ST ..Intel Pentium microprocessor with MMX technology 233 or 166 MHz Bus architecture ....PCI Internal cache memory .
  • Page 14 4.0 operat- ing system does not support zoom video. The Latitude CP and CPi do not support memory modules from previous models of Dell por- table computers, such as the Latitude XP , XPi, XPi CD, and LM. Dell Latitude CP and CPi Service Manual...
  • Page 15 Controls ..... volume can be controlled with key combi- nations, software application menus, the Speaker window in the Dell Control Center, or the System Setup program 9LGHR Video type .
  • Page 16 Controls ..... brightness can be controlled with key com- binations, the Display window in the Dell Control Center, or the System Setup program 1-10 Dell Latitude CP and CPi Service Manual...
  • Page 17 Controls ..... brightness and contrast can be controlled with key combinations, the Display win- dow in the Dell Control Center, or the System Setup program 7RXFK 3DG Interface.
  • Page 18 Storage ....–20° to 60°C (–4° to 140°F) Battery performance features such as charge time and life span can vary according to the conditions under which the computer and battery are used. 1-12 Dell Latitude CP and CPi Service Manual...
  • Page 19 7DEOH  7HFKQLFDO 6SHFLILFDWLRQV FRQWLQXHG $& $GDSWHU Input voltage ....90 to 135 VAC and 164 to 264 VAC Input current (maximum) ..3.5 A Input frequency .
  • Page 20 Weight shown is with a hard-disk drive, a battery in the battery bay, a diskette drive in the modular bay, and one memory module. Your computer might weigh more or less, depending on its configuration. Measured with the hard-disk drive in head-parked position. 1-14 Dell Latitude CP and CPi Service Manual...
  • Page 21 $VN WKH XVHU WR EDFN XS DQ\ GDWD RQ WKH KDUGGLVN GULYH LI WKH V\VWHP·V FRQGLWLRQ SHUPLWV See “Maintaining Your Computer” in the online Dell Latitude CP and CPi User’s Guide . $VN WKH XVHU WR WU\ WR GXSOLFDWH WKH SUREOHP E\ UHSHDWLQJ WKH...

  • Page 22: Visual Inspection

    A fatal battery condition exists. Press the power button for 4 seconds to turn off the computer, and then remove the battery or batteries from the system. All indicators remain off. The computer is already turned off or in suspend-to-disk mode. Dell Latitude CP and CPi Service Manual...
  • Page 23  ,I WKH FRPSXWHU LV GRFNHG LQ D &3RUW $GYDQFHG 3RUW 5HSOLFDWRU $35 RU &'RFN ([SDQVLRQ 6WDWLRQ XQGRFN WKH FRPSXWHU See the User's Guide that came with the C/Port APR or C/Dock Expansion Station for detailed instructions on undocking the computer.  9HULI\ WKDW WKH H[WHULRU RI WKH FRPSXWHU LV IUHH RI REYLRXV SK\VLFDO GDPDJH  ,I WKH FRPSXWHU LV RSHUDWLQJ IURP DQ $&...

  • Page 24: Observing The Boot Routine

    Dell recommends that users make copies of the diskette and always use a backup copy when servicing a user’s computer. For instructions, see “Before You Start Testing” in Chapter 4 of the Dell Latitude CP Reference and Trouble- shooting Guide .

  • Page 25: Eliminating Resource Conflicts

    Table 3-3. 2EVHUYH WKH GLVSOD\ IRU WKH 'LDJQRVWLFV 0HQX Does the Diagnostics Menu display? Yes. See “Running the Dell Diagnostics” in Chapter 3. No. Proceed to step 6. ,QVHUW D FRS\ RI WKH GLDJQRVWLFV GLVNHWWH LQWR WKH GLVNHWWH GULYH DQG UHERRW WKH FRPSXWHU Does the Diagnostics Menu display? Yes.

  • Page 26: Getting Help

    If none of the procedures in this chapter reveals the source of the problem or leads to the proper troubleshooting steps for determining the source of the problem, call Dell for technical assistance. For instructions, see Chapter 5, “Getting Help,” in the Reference and Troubleshooting Guide .
  • Page 27 If a faulty computer does not display a POST error code or system error mes- sage to indicate a failure, use the Dell Diagnostics to help isolate the source of the problem. See “Running the Dell Diagnostics” found later in this chapter.
  • Page 28 System board faulty failure 3-4-1 Display initialization failure 3-4-2 Display retrace test failure 4-2-1 No timer tick System board faulty 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 Unexpected interrupt in protected mode Dell Latitude CP and CPi Service Manual...
  • Page 29 7DEOH  3267 (UURU &RGHV FRQWLQXHG ,QGLFDWRU &RGH (UURU 3UREDEOH &DXVHV 4-3-1 Memory failure above Memory module improperly seated address 0FFFFh or system memory controller faulty (system board faulty) 4-3-3 Timer chip counter 2 System board faulty failure 4-3-4 Time-of-day clock Reserve battery faulty or system stopped board faulty...
  • Page 30 Indicator Fatal Cell imbalance; Replace the battery. flashes critical discharge amber four times per second. battery indicator )LJXUH  %DWWHU\ ,QGLFDWRU Dell Latitude CP and CPi Service Manual...
  • Page 31 The following table lists (in alphabetical order) system error messages that may appear on the display during the boot routine or during normal computer operation. 7DEOH  6\VWHP (UURU 0HVVDJHV 0HVVDJH 'HILQLWLRQ 3UREDEOH &DXVHV Integrated touch pad or Integrated touch pad Auxiliary device external PS/2 mouse or external PS/2...
  • Page 32 Hard-disk drive not respond to commands controller from the computer. failure 1 Hard-disk drive not Computer needs Hard-disk drive responding to commands rebooting. failure from computer. Hard-disk drive Hard-disk drive faulty. read failure Dell Latitude CP and CPi Service Manual...
  • Page 33 7DEOH  6\VWHP (UURU 0HVVDJHV FRQWLQXHG 0HVVDJH 'HILQLWLRQ 3UREDEOH &DXVHV System Setup contains System Setup Invalid invalid settings. program contains configuration incorrect settings. information — please run NVRAM reserve System Setup battery weak or program depleted. Keyboard controller not Cable or connector Keyboard control- responding.
  • Page 34 Optional ROM failed. external device bad checksum faulty. ® Bad sector or Sector not found MS-DOS unable to locate corrupted FAT on a sector on diskette or diskette or hard-disk hard-disk drive. drive. Dell Latitude CP and CPi Service Manual...
  • Page 35 Battery is critically low. The diagnostics contains tests that aid in troubleshooting the computer. If needed, see Chapter 4, “Running the Dell Diagnostics,” in the Reference and Troubleshooting Guide . The diagnostics diskette contains the following test groups: RAM — Tests the main memory System Set —...
  • Page 36 Follow these steps to start the diagnostics. NOTE: You must have a diskette-drive cable to perform the following proce- dure. If you do not have a diskette-drive cable, you can get one from Dell. See Chapter 5, “Getting Help,” in the Reference and Troubleshooting Guide for information on contacting Dell.
  • Page 37 This chapter provides instructions for removing and replacing field- replaceable components, assemblies, and subassemblies. Unless otherwise noted, each procedure in this chapter assumes the following: The computer and any attached peripherals are turned off, and the periph- erals are disconnected from the I/O panel on the back of the computer. A part can be replaced by performing the removal procedure in reverse order.
  • Page 38 FRPSXWHU RYHU 3XVK WKH PRGXODU ED\ ODWFK DZD\ IURP WKH FHQWHU RI WKH FRPSXWHU :KLOH KROGLQJ WKH ODWFK ZLWK RQH KDQG SXOO WKH GHYLFH RXW RI WKH PRGXODU ED\ ZLWK WKH RWKHU KDQG Dell Latitude CP and CPi Service Manual...
  • Page 39  5HPRYH WKH PDLQ EDWWHU\ DVVHPEO\ IURP WKH EDWWHU\ ED\ Slide the battery bay latch away from the center of the computer. Then slide the battery out of the battery bay (see Figure 4-2). battery bay latch battery )LJXUH  0DLQ %DWWHU\ $VVHPEO\ 5HPRYDO  5HPRYH WKH KDUGGLVN GULYH DVVHPEO\ VHH ´+DUG'LVN 'ULYH $VVHPEO\µ...
  • Page 40 2ULHQW WKH HQG RI WKH LQWHUIDFH FDEOH ZLWK WKH =,) FRQQHFWRU DQG LQVHUW WKH HQG RI WKH FDEOH LQWR WKH FRQQHFWRU :KLOH KROGLQJ WKH FDEOH LQ SODFH FORVH WKH =,) FRQQHFWRU To ensure a firm connection, make sure the ZIF connector is completely closed. Dell Latitude CP and CPi Service Manual...
  • Page 41 Table 4-1 lists the parts and assemblies available for the computer. Some parts may only be available as part of a service kit or assembly, and are provided for reference only. The subsections that follow Table 4-1 provide instructions for removing and replacing these parts and assemblies.
  • Page 42 Diskette drive assembly CVR,TOP ,PLSTC,FD,F3,CP top cover Diskette drive assembly PWA,INTFC,FD,F3,CP interface board Diskette drive assembly CBL,FPC,FD,F3,CP interface cable Diskette drive assembly SHLD,FD,F3,CP shield ([KDXVW )DQ Service kit, exhaust fan SVC,FAN,25X25X10,CP 4-31 Dell Latitude CP and CPi Service Manual...
  • Page 43 7DEOH  3DUWV DQG $VVHPEOLHV FRQWLQXHG 3DUW RU $VVHPEO\ 1DPH 2UGHU 1DPH )LJXUH +DUG'LVN 'ULYH $VVHPEOLHV SUBASSY,HD, xxxxx ,I, yyy MM, Hard-disk drive, subassembly Hard-disk drive HD, xxxxx ,I, yy MM,NBK, zzz Hard-disk drive interface PWA,INTERCONN,HD,CP board Hard-disk drive bracket BRKT,HD,CP +DUG'LVN 'ULYH %UDFNHW'RRU $VVHPEO\ Hard-disk drive carrier bracket/...
  • Page 44 Display-assembly-bezel CVR,SCR,TOP ,OVAL,SM,ADH,12.1 retaining screw covers, latch, 12.1-inch display Display top-cover service kit, SVC,ASSY,CVR,TOP ,LCD, 12.1-inch display 12.1” ,CP Display top cover CVR,TOP ,LCD,TFT,12.1” ,CP Display top-cover EMI SHLD,EMI,DIS,TFT/STN, 12.1” ,CP shield Dell Latitude CP and CPi Service Manual...
  • Page 45 7DEOH  3DUWV DQG $VVHPEOLHV FRQWLQXHG 3DUW RU $VVHPEO\ 1DPH 2UGHU 1DPH )LJXUH /&' $VVHPEOLHV ,QFK 'LVSOD\ FRQWLQXHG LCD/Cable service kit, SVC,LCD/CBL/INV, 4-18 Samsung TFT,SMSNG,CP LCD inverter board SUBASSY,PWA,INVRTR W/INSUL,LCD,CP subassembly LCD cable subassembly, SUBASSY,CBL/HLDR,TFT, Samsung SMSNG,CP LCD panel, Samsung LCD,TFT,SVGA,12.1”...
  • Page 46 LCD panel, Sharp LCD,TFT,XGA,13.3” ,CP ,SHARP /&' /DWFK $VVHPEO\ ,QFK 'LVSOD\ Latch service kit, 12.1-inch SVC,LATCH,DIS,BZL,CP 4-14 LCD display /&' /DWFK $VVHPEO\ ,QFK 'LVSOD\ Latch service kit, 13.3-inch SVC,LATCH,DIS,BZL,CPX 4-15 LCD display 4-10 Dell Latitude CP and CPi Service Manual...
  • Page 47 7DEOH  3DUWV DQG $VVHPEOLHV FRQWLQXHG 3DUW RU $VVHPEO\ 1DPH 2UGHU 1DPH )LJXUH /&' 3DUWV 0LVFHOODQHRXV Left hinge, 12.1-inch display HNG,LF ,LCD,TFT/STN,12.1” 4-14 Right hinge, 12.1-inch display HNG,RT,LCD,TFT/STN,12.1” Left hinge, 13.3-inch display HNG,LF ,LCD,TFT,13.3” 4-15 Right hinge, 13.3-inch display HNG,RT,LCD,TFT,13.3” Right bracket, 12.1-inch BRKT,RT,LCD,TFT/STN 4-14...
  • Page 48 DISK,FLD SERV,F3,US,LXP System board assembly ASSY,PRM/PWA,ENGINE, CP xxx with system board and processor module * Substitute the drive capacity for xxxxx, the drive height for yy, and the manufacturer for zzz . 4-12 Dell Latitude CP and CPi Service Manual...
  • Page 49 7DEOH  3DUWV DQG $VVHPEOLHV FRQWLQXHG 3DUW RU $VVHPEO\ 1DPH 2UGHU 1DPH )LJXUH 6\VWHP %RDUG $VVHPEO\ FRQWLQXHG System board assembly ASSY,PRM/PWA,ENGINE, CPi xxx with system board and processor module System-board engine SUBASSY,PWA/ENGINE,CP subassembly I/R board PWA,FAST IR,CP Microphone boot GRMT,RBR,BOOT,MCPHN Main system board PWA,PLN,0M,NB,CP Video/PC Card...
  • Page 50 )LJXUH  ([SORGHG 9LHZ³&RPSXWHU The following subsections provide instructions for removing and replacing field-replaceable parts and assemblies. 4-14 Dell Latitude CP and CPi Service Manual...
  • Page 51 bottom of computer 5-mm screws (2) hard-disk drive door )LJXUH  +DUG'LVN 'ULYH $VVHPEO\ 5HPRYDO  7XUQ WKH FRPSXWHU RYHU DQG UHPRYH WKH WZR PP VFUHZV IURP WKH KDUGGLVN GULYH GRRU The drive is on the left side of the computer. &$87,21 7KH KDUGGLVN GULYH LV YHU\ VHQVLWLYH WR VKRFN +DQGOH WKH DVVHPEO\ E\ LWV HGJHV GR QRW VTXHH]H WKH WRS RI WKH KDUGGLVN GULYH FDVH  DQG DYRLG GURSSLQJ LW...
  • Page 52 5HOHDVH WKH PHPRU\ PRGXOH FRYHU Insert a fingertip in the indentation in the bottom case assembly and lift the cover slightly; then slide the cover in the direction indicated by the arrow on the cover. 4-16 Dell Latitude CP and CPi Service Manual...
  • Page 53 memory module sockets (2) retaining clips (2 per socket) )LJXUH  0HPRU\ 0RGXOH 5HPRYDO 5HPRYH WKH PHPRU\ PRGXOH FRYHU 7R DYRLG SRVVLEOH GDPDJH WR WKH PHPRU\ PRGXOH IURP (6' JURXQG \RXUVHOI E\ WRXFKLQJ WKH PHWDO VXUIDFH RI DQ ,2 FRQQHFWRU RQ WKH FRPSXWHU·V EDFN SDQHO 7R UHOHDVH D PHPRU\ PRGXOH IURP LWV VRFNHW JHQWO\ SXVK RXWZDUG RQ HDFK RI WKH PHPRU\ PRGXOH·V WZR PHWDO UHWDLQLQJ FOLSV...
  • Page 54 The keyboard should raise up slightly. b. Insert a fingernail or a small flat-bladed screwdriver under the scalloped edge of the blank key (see Figure 4-10), and lift the right edge of the keyboard. 4-18 Dell Latitude CP and CPi Service Manual...
  • Page 55 metal tabs (2) keyboard plastic scalloped edge tabs (2) of blank key palmrest deflect palmrest outward to release keyboard )LJXUH  .H\ERDUG $VVHPEO\ 5HPRYDO 2QFH WKH NH\ERDUG LV IXOO\ UHOHDVHG IURP WKH SDOPUHVW SODFH WKH NH\ERDUG XSVLGH GRZQ RYHU WKH WRXFK SDG 'LVFRQQHFW WKH NH\ERDUG FDEOH IURP FRQQHFWRU .% RQ WKH V\VWHP ERDUG 5HPRYH WKH NH\ERDUG DVVHPEO\...
  • Page 56  5HPRYH WKH EDFN FRYHU DVVHPEO\ Grasp the right end of the back cover assembly firmly, and unsnap it from the computer. Then disengage the left end of the back cover assembly. 4-20 Dell Latitude CP and CPi Service Manual...
  • Page 57 The palmrest assembly consists of the touch pad and the palmrest. 5-mm screw palmrest assembly 5-mm screws (2) bottom case assembly 12-mm screws (3) )LJXUH  3DOPUHVW $VVHPEO\ 5HPRYDO  5HPRYH WKH NH\ERDUG  'LVFRQQHFW WKH WRXFKSDG FDEOH IURP =,) FRQQHFWRU -3 RQ WKH V\VWHP ERDUG  5HPRYH WKH EDFN FRYHU DVVHPEO\  5HPRYH WKH IROORZLQJ VFUHZV VHFXULQJ WKH SDOPUHVW WR WKH...
  • Page 58 Also, check that the microphone boot is properly located in its slot on the top EMI shield and is fitted within the palmrest assembly. 4-22 Dell Latitude CP and CPi Service Manual...
  • Page 59 1.8-mm screws (4) touch-pad bracket interface cable connector J1 touch-pad interface module touch-pad cable palmrest assembly )LJXUH  7RXFK3DG ,QWHUIDFH 0RGXOH 5HPRYDO  5HPRYH WKH SDOPUHVW DVVHPEO\  7XUQ WKH SDOPUHVW DVVHPEO\ XSVLGH GRZQ RQ D IODW ZRUN VXUIDFH  5HPRYH WKH IRXU PP VFUHZV VHFXULQJ WKH WRXFKSDG EUDFNHW  &DUHIXOO\ GLVFRQQHFW WKH WRXFKSDG FDEOH IURP =,) FRQQHFWRU - RQ WKH WRXFKSDG LQWHUIDFH PRGXOH To release the ZIF connector latch, use a fingernail to lift up the central por-...
  • Page 60 5HPRYH WKH SDOPUHVW DVVHPEO\ 7XUQ WKH SDOPUHVW DVVHPEO\ XSVLGH GRZQ RQ D IODW ZRUN VXUIDFH &RPSUHVV WKH WZR FDWFKHV VHFXULQJ WKH SRZHU EXWWRQ DQG UHPRYH WKH SRZHU EXWWRQ DQG VSULQJ IURP WKH SDOPUHVW DVVHPEO\ 4-24 Dell Latitude CP and CPi Service Manual...
  • Page 61 For removal purposes, the display assembly consists of the following components: Display assembly bezel LCD panel LCD inverter board LCD inverter board shield (13.3-inch display only) Display-assembly interface cable Display assembly latch Display assembly top-cover assembly Display assembly hinges Display assembly right bracket (12.1-inch display only) display assembly bezel LCD panel display assembly...
  • Page 62 LCD panel display-assembly display assembly interface cable latch LCD inverter board shield display-assembly top-cover assembly LCD inverter board hinge (2) )LJXUH  ([SORGHG 9LHZ³'LVSOD\ $VVHPEO\ ,QFK 'LVSOD\ 6KRZQ 4-26 Dell Latitude CP and CPi Service Manual...
  • Page 63 display assembly 5-mm screws (4) display-assembly interface-cable grounding screws (2) display-assembly hinges (2) interface cable )LJXUH  'LVSOD\ $VVHPEO\ 5HPRYDO 5HPRYH WKH SDOPUHVW DVVHPEO\ 5HPRYH WKH WZR PP LQWHUIDFHFDEOH JURXQGLQJ VFUHZV IURP WKH GLVSOD\DVVHPEO\ LQWHUIDFH FDEOH 'LVFRQQHFW WKH GLVSOD\DVVHPEO\ LQWHUIDFH FDEOH IURP FRQQHFWRU -3 RQ WKH V\VWHP ERDUG Grasp the grounding tabs and pull the connector straight up from the sys- tem board.
  • Page 64 &$87,21 :KHQ UHLQVWDOOLQJ WKH LQWHUIDFHFDEOH FRQQHFWRU EH YHU\ FDUHIXO QRW WR LQVHUW WKH FRQQHFWRU DW DQ DQJOH 3RVLWLRQ WKH FDEOH HQG RYHU WKH FRQQHFWRU DQG SXVK WKH FRQQHFWRU VWUDLJKW GRZQ³WR SUHYHQW EHQGLQJ WKH FRQQHFWRU SLQV 4-28 Dell Latitude CP and CPi Service Manual...
  • Page 65 5-mm screws (4) (12.1-inch displays); 3-mm screws (4) (13.3-inch displays) screw covers (6) display assembly bezel 5-mm screws (2) display-assembly top cover )LJXUH  'LVSOD\ $VVHPEO\ %H]HO 5HPRYDO ,QFK 'LVSOD\ 6KRZQ  8VH D VFULEH WR FDUHIXOO\ SU\ WKH VFUHZ FRYHUV RXW RI WKH VL[ VFUHZ KROHV LQ WKH EH]HO  5HPRYH WKH VL[ VFUHZV IURP WKH EH]HO On 12.1-inch displays, all six screws are 5-mm screws.
  • Page 66 If replacing the latch in a 13.3-inch display , unsnap the latch and captive spring from the inside of the display assembly top-cover assembly. 4-30 Dell Latitude CP and CPi Service Manual...
  • Page 67 The following subsections describe how to remove an LCD panel. 5-mm screws (4) upper-left corner interface cable LCD panel connector LCD panel power cable connector J2 interface cable LCD inverter board display-assembly top cover )LJXUH  /&' 3DQHO 5HPRYDO ,QFK 'LVSOD\ 5HPRYH WKH GLVSOD\ DVVHPEO\ EH]HO 5HPRYH WKH IRXU VLOYHU PP VFUHZV DW WKH FRUQHUV RI WKH /&' SDQHO...
  • Page 68  5HPRYH WKH VFUHZ VHFXULQJ WKH /&' LQYHUWHU ERDUG WR WKH GLVSOD\ DVVHPEO\ WRS FRYHU  /LIW WKH /&' LQYHUWHU ERDUG DQG LQYHUWHU ERDUG VKLHOG IDU HQRXJK WR GLVFRQQHFW WKH /&' SDQHO SRZHU FDEOH 4-32 Dell Latitude CP and CPi Service Manual...
  • Page 69 'LVFRQQHFW WKH GLVSOD\DVVHPEO\ LQWHUIDFH FDEOH IURP WKH =,) FRQ QHFWRU RQ WKH XQGHUVLGH RI WKH /&' SDQHO To disconnect the cable, carefully work the cable connector free from the ZIF connector on the LCD panel. Do not pull on the LCD interface cable itself.
  • Page 70 NOTE: When replacing the LCD panel, ensure that the tabs on the display-assembly EMI shield fit over the four LCD-panel mounting bosses. (This is necessary for adequate grounding of the LCD panel.) 4-34 Dell Latitude CP and CPi Service Manual...
  • Page 71 The following subsections describe how to remove an LCD inverter board from a 12.1-inch or 13.3-inch LCD display. 5-mm connector J2 display-assembly top cover screws (2) spacer (2) LCD-assembly power cable LCD inverter board connector J1 )LJXUH  /&' ,QYHUWHU %RDUG 5HPRYDO ,QFK 'LVSOD\  5HPRYH WKH GLVSOD\ DVVHPEO\ EH]HO  'LVFRQQHFW WKH /&'DVVHPEO\ SRZHU FDEOH IURP FRQQHFWRU - RQ WKH /&' LQYHUWHU ERDUG...
  • Page 72  6OLGH WKH /&' LQYHUWHU ERDUG RXW RI WKH /&' LQYHUWHU ERDUG VKLHOG NOTE: Replace the LCD inverter board in the shield so that the components on the board face towards the display-assembly top cover. 4-36 Dell Latitude CP and CPi Service Manual...
  • Page 73 5-mm screws (2) display-assembly interface cable left hinge plastic bobbin connector J1 )LJXUH  'LVSOD\$VVHPEO\ ,QWHUIDFH &DEOH 5HPRYDO ,QFK 'LVSOD\ 6KRZQ  5HPRYH WKH GLVSOD\ DVVHPEO\  5HPRYH WKH /&' SDQHO  'LVFRQQHFW WKH GLVSOD\DVVHPEO\ LQWHUIDFH FDEOH IURP =,) FRQQHF WRU - RQ WKH /&' LQYHUWHU ERDUG  5HPRYH WKH WZR PP VFUHZV VHFXULQJ WKH OHIW KLQJH DQG WKHQ UHPRYH WKH KLQJH IURP WKH GLVSOD\DVVHPEO\ WRS FRYHU...
  • Page 74 “R” and an “L,” respectively. Install the four screws securing the hinges at the locations marked by arrows on the face of each hinge. The right bracket on a 12.1-inch display fits above the right hinge (see Figure 4-14). 4-38 Dell Latitude CP and CPi Service Manual...
  • Page 75 NOTES: The replacement display-assembly top cover assembly includes two badges, one for Dell Latitude CP and one for the Dell Latitude CPi. Look at the old cover to determine which badge is appropriate, and then attach the appro- priate badge to the new cover.
  • Page 76 Diskette drive assembly, CD-ROM drive assembly, or travel module Back cover assembly Audio shield Audio board Bottom case bracket Module latch assemblies Speakers System board assembly Thermal cooling assembly Air flow duct Exhaust fan I/R board Reserve battery 4-40 Dell Latitude CP and CPi Service Manual...
  • Page 77 audio board audio shield thermal cooling assembly I/R board system board assembly bottom case bracket air flow duct module latch assembly (2) main battery modular bay device )LJXUH  %RWWRP &DVH $VVHPEO\ Removing and Replacing Parts 4-41...
  • Page 78 5HPRYH WKH GHYLFH IURP WKH PRGXODU ED\ Push the modular bay latch away from the center of the computer. Keep holding the latch open while pulling the device out of the modular bay with the other hand. 4-42 Dell Latitude CP and CPi Service Manual...
  • Page 79  5HPRYH WKH SDOPUHVW DVVHPEO\  5HPRYH WKH PP VFUHZ VHFXULQJ WKH DXGLR ERDUG VKLHOG VHH )LJ XUH    5HPRYH WKH DXGLR ERDUG VKLHOG NOTE: When replacing the audio shield, ensure that the audio shield is prop- erly seated to prevent it from cutting into the speaker wires or interfering with devices installed in the modular bay.
  • Page 80 (You can check this by temporarily install- ing a device in the modular bay prior to reinstalling the palmrest assembly.) 4-44 Dell Latitude CP and CPi Service Manual...
  • Page 81 left speaker plastic retaining clip wires 5-mm screws (4) left speaker slot right speaker )LJXUH  %RWWRP &DVH %UDFNHW 5HPRYDO 5HPRYH WKH SDOPUHVW DVVHPEO\ 5HPRYH WKH DXGLR ERDUG VKLHOG 'LVFRQQHFW WKH VSHDNHU ZLUHV IURP FRQQHFWRUV -3 DQG -3 RQ WKH DXGLR ERDUG The connectors are fragile—do not pull on the speaker wires to disconnect them.
  • Page 82 6QDS LQ WKH QHZ ODWFK IURP WKH ERWWRP RI WKH EDVH PDNLQJ FHU WDLQ LWV VQDS IHDWXUHV DUH IXOO\ HQJDJHG LQ WKH VOLGHU (QVXUH WKDW WKH QHZO\ LQVWDOOHG ODWFK PRYHV VPRRWKO\ DQG IUHHO\ ZKHQ SXVKHG DQG UHOHDVHG 4-46 Dell Latitude CP and CPi Service Manual...
  • Page 83 5HSHDW VWHSV ² IRU WKH ULJKW ODWFK 2Q WKH EDVH SODVWLF ILQG WKH PROGHG ODEHO ´3 1 $66< µ WKHQ XVLQJ D SHUPDQHQW PDUNHU ZULWH ´ $µ WR WKH ULJKW RI ´µ This revision mark indicates that the latch rework is complete. bump side wear ribs (2) )LJXUH  /HIW 6OLGHU...
  • Page 84  5HPRYH WKH SDOPUHVW DVVHPEO\  5HPRYH WKH /&' GLVSOD\ DVVHPEO\  5HPRYH WKH DXGLR ERDUG  5HPRYH WKH WZR PP VFUHZV VHFXULQJ WKH WKHUPDO FRROLQJ VXE DVVHPEO\ WR WKH PLFURSURFHVVRU PRGXOH 4-48 Dell Latitude CP and CPi Service Manual...
  • Page 85 &$87,21 7R HQVXUH PD[LPXP FRROLQJ IRU WKH PLFURSURFHVVRU GR QRW WRXFK WKH KHDW WUDQVIHU DUHDV RQ WKH WKHUPDO FRROLQJ DVVHPEO\ 7KH RLOV LQ \RXU VNLQ UHGXFH WKH KHDW WUDQVIHU FDSDELOLW\ RI WKH WKHUPDO SDGV  5HPRYH WKH WKHUPDO FRROLQJ VXEDVVHPEO\ IURP WKH PLFUR SURFHVVRU PRGXOH  5HPRYH WKH DLU IORZ GXFW  9HULI\ WKDW WKH 3&...
  • Page 86 (when viewed from the back of the computer). (This will prevent the fan wires from being pinched when you reassemble the computer.) Make sure that the wires are routed below the upper EMI shield. 4-50 Dell Latitude CP and CPi Service Manual...
  • Page 87 5-mm screw I/R board )LJXUH  ,5 %RDUG 5HPRYDO  5HPRYH WKH SDOPUHVW DVVHPEO\  5HPRYH WKH PP VFUHZ VHFXULQJ WKH ,5 ERDUG WR WKH V\VWHP ERDUG DVVHPEO\  /LIW WKH ,5 ERDUG VWUDLJKW XS IURP WKH V\VWHP ERDUG DVVHPEO\ Removing and Replacing Parts 4-51...
  • Page 88 NOTE: When replacing the reserve battery, first connect the reserve battery cable to the system board. Then position the reserve battery on the hard-disk drive bay so there is minimal slack in the cable. 4-52 Dell Latitude CP and CPi Service Manual...
  • Page 89 1-1 audio board illustrated, 1-2, 1-3 removal, 4-44 power, controlling, 1-5 audio shield removal, 4-43 Dell Diagnostics, 3-9 diskette drive back cover assembly removal, 4-42 removal, 4-20 display assembly battery (in modular bay) bezel, removal, 4-29 removal, 4-42...

  • Page 90: Keyboard Indicators

    4-18 removal, 4-24 keyboard indicators, 1-5 power indicator, 1-4 power states, 1-5 precautions, 4-2 LCD display hinge removal, 4-38 LCD inverter board reserve battery removal, 4-35, 4-36 removal, 4-52 Dell Latitude CP and CPi Service Manual...

  • Page 91: Technical Specifications

    travel module removal, 4-42 screw identification and tightening, troubleshooting boot routine interpretation, 2-4 sockets external visual inspection, 2-2 memory module, 4-17 initial user contact, 2-1 resource conflicts, eliminating, 2-6 speakers removal, 4-47 specifications technical, 1-7 subsystems user contact testing, 3-9 initial, 2-1 system features, 1-1...
  • Page 93 ®...

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