Dell™ Inspiron™ 1525/1526 Service Manual Before You Begin Subscriber Identity Module (Optional) ExpressCards Using the Memory Card Reader Optical Drive Hard Drive Center Control Cover Internal Card With Bluetooth® Wireless Technology Keyboard Button Board Memory Display Speaker Assembly Palm Rest ExpressCard Cage Processor Thermal-Cooling Assembly Processor Module Wireless Mini-Cards System Board Assembly Coin-Cell Battery Battery Latch Assembly Flashing the BIOS Pin Assignments for I/O Connectors Notes,
Back to Contents Page Before You Begin Dell™ Inspiron™ 1525/1526 Service Manual Recommended Tools Before Working Inside Your Computer This document provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that: l You have performed the steps in Before Working Inside Your Computer. l You have read the safety information in your Dell Product Information Guide.
7. Slide the battery release latch until they click into place. 8. Slide the battery out of the battery bay. 1 battery 2 battery release latch 9. Turn the computer top-side up, open the display, and press the power button to ground the system board.
Back to Contents Page Flashing the BIOS Dell™ Inspiron™ 1525/1526 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BIOS-update program CD is provided with a new system board, flash the BIOS from the CD. If you do not have a BIOS-update program CD, flash the BIOS from the hard drive. Flashing the BIOS From a CD NOTICE: Plug the AC adapter into a known good power source to prevent a loss of power. Failure to do so may cause system damage. 1.
9. Double-click the file icon on the desktop and follow the instructions on the screen.
Back to Contents Page Internal Card With Bluetooth® Wireless Technology Dell™ Inspiron™ 1525/1526 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the 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 a connector on the back of the computer).
Back to Contents Page Button Board Dell™ Inspiron™ 1525/1526 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the 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 a connector on the back of the computer).
Back to Contents Page Using the Memory Card Reader Dell™ Inspiron™ 1525/1526 Service Manual Removing a Memory Card or Blank CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: Use the memory card configuration utility (click the icon in the notification area) to select a card and stop it from functioning before you remove it from the computer. If you do not stop the card in the configuration utility, you may lose data.
Back to Contents Page Center Control Cover Dell™ Inspiron™ 1525/1526 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the 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 a connector on the back of the computer).
NOTICE: The key caps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the keyboard. 1 screws (2) 2 keyboard 3 keyboard tabs (5) 4 keyboard cable 5 keyboard connector latch 6 media control buttons connector 8. Lift the keyboard and hold it up and slightly forward to access to the media control buttons connector. 9. Disconnect the media control buttons connector and remove the media control buttons cable.
Back to Contents Page Coin-Cell Battery Dell™ Inspiron™ 1525/1526 Service Manual Removing the Coin-Cell Battery Replacing the Coin-Cell Battery Removing the Coin-Cell Battery CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove all memory module (see Removing Memory Module). 3. Remove the hard drive (see Removing the Hard Drive). 4.
Replacing the Coin-Cell Battery CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Hold the coin-cell battery with the positive side up. 2. Slide the coin-cell battery into the slot and gently press until it snaps to the slot. 3. Follow the steps in Removing the Coin-Cell Battery in the reverse order.
Back to Contents Page Processor Module Dell™ Inspiron™ 1525/1526 Service Manual Removing the Processor Module CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove the processor thermal-cooling assembly (see Removing the Processor Thermal-Cooling Assembly).
When the processor module is properly seated, all four corners are aligned at the same height. If one or more corners of the module are higher than the others, the module is not seated properly. 1 ZIF-socket cam screw 2 ZIF socket 3 pin-1 corner NOTICE: To avoid damage to the processor, hold the screwdriver so that it is perpendicular to the processor when turning the cam screw. 2. Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board. 3.
Back to Contents Page Processor Thermal-Cooling Assembly Dell™ Inspiron™ 1525/1526 Service Manual Removing the Processor Thermal-Cooling Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Turn the computer over. 3. Remove the eight captive screws securing the back cover and remove the module cover. 1 module cover 4.
CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Align the five captive screws on the processor thermal-cooling assembly with the screw holes on the system board. 2. In sequential order, tighten the five captive screws to secure the processor thermal-cooling assembly to the system board. 3. Replace the module cover and tighten the eight captive screws.
Back to Contents Page Display Dell™ Inspiron™ 1525/1526 Service Manual Display Assembly Display Bezel Display Panel Camera and Microphone Assembly Display Assembly Removing the Display Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Loosen the eight captive screws on the back cover and remove the cover. 3. Disconnect the antenna cables from the mini cards. 4.
8. Disconnect the display cable from the connector. 9. Disconnect the camera cable from the connector. 1 display cable 2 camera cable 10. Pull the antenna cables from the routing hole and release them from the routing channel. 11. Remove the four screws from the display assembly hinges. 1 display assembly 2 antenna cables 3 camera cable 4 display cable 5 Hinge screws (4) 12. Lift the display assembly out of the computer.
NOTE: Ensure that the display cable, camera cable, and antenna cables are properly routed and secured beneath the plastic tabs. 6. Connect the display cable to the display cable connector on the system board. 7. Connect the camera cables to the camera cable connector on the system board. 8. Replace the keyboard (see Replacing the Keyboard). 9. Replace the center control cover (see Replacing the Center Control Cover). 10. Close the display and turn the computer over. 11.
remainder of the bezel. Replacing the Display Bezel CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Starting at any corner, use your fingers to gently snap the bezel into place to secure it to the display panel. 3. Replace the captive screw and five shoulder screws around the display bezel. 4. Replace the six rubber display bumpers around the display bezel. 5.
1 display panel 2 screws (8) 9. 10. Use the pull tab to disconnect the bottom flex-cable connector from the invertor connector. Lift the tape securing the top flex-cable connector and gently pull to disconnect the top flex-cable connector from the display locking connector. 1 display panel 2 top flex-cable connector 3 bottom flex-cable connector Replacing the Display Panel CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1.
10. Replace the center control cover (see Replacing the Center Control Cover). Camera and Microphone Assembly Removing the Camera and Microphone Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove the center control cover (see Removing the Center Control Cover). 3. Remove the keyboard (see Removing the Keyboard). 4.
Back to Contents Page ExpressCard Cage Dell™ Inspiron™ 1525/1526 Service Manual Removing the ExpressCard Cage CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove the center control cover (see Removing the Center Control Cover). 3. Remove the keyboard (see Removing the Keyboard). 4. Remove the display assembly (see Removing the Display Assembly). 5.
Back to Contents Page Hard Drive Dell™ Inspiron™ 1525/1526 Service Manual NOTE: Dell does not guarantee compatibility or provide support for hard drives obtained from sources other than Dell. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: Do not touch the metal housing of the hard drive if you remove the hard drive from the computer while the drive is hot.
1 hard drive cover 2 screws (2) 3 hard drive Replacing the Hard Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive. 1. Replace the hard drive cover and tighten the two screws to secure the cover to the hard drive. NOTICE: Use firm and even pressure to slide the hard drive into place.
Back to Contents Page Keyboard Dell™ Inspiron™ 1525/1526 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the 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 a connector on the back of the computer).
Back to Contents Page Battery Latch Assembly Dell™ Inspiron™ 1525/1526 Service Manual Removing the Battery Latch Assembly Replacing the Battery Latch Assembly Removing the Battery Latch Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove all memory module (see Removing Memory Module). 3. Remove the hard drive (see Removing the Hard Drive). 4.
1 plastic grip 2 battery latch assembly 3 spring NOTICE: Before you remove the battery release button, observe the orientation of the button to ensure proper installation when the button is replaced. Replacing the Battery Latch Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. NOTICE: Ensure the battery latch assembly is properly oriented. The indent for the screw should face up when installing the assembly. 1.
Back to Contents Page Memory Dell™ Inspiron™ 1525/1526 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. You can increase your computer memory by installing memory modules on the system board. See "Specifications" in your Owner's Manual for information on the memory supported by your computer. Install only memory modules that are intended for your computer.
1 securing clips (2) 2 memory module Replacing Memory Module NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as a connector on the back of the computer). 1. Align the notch in the module edge connector with the tab in the connector slot. 2. Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place.
Back to Contents Page Wireless Mini-Cards Dell™ Inspiron™ 1525/1526 Service Manual Flash Cache Module CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: To help prevent damage to the system board, you must remove the battery from the battery bay before you begin working inside the computer. If you ordered a wireless Mini-Card with your computer, the card is already installed.
1 antenna cable connectors 2 securing screw 5. Release the Mini-card by removing the securing screw. 6. Lift the card out of its system board connector. 1 Mini-card Replacing Mini-Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card. NOTICE: To avoid damage to the Mini-card, never place cables under the card. 1.
Flash Cache Module Removing the FCM 1. Follow the procedures in Before You Begin. 2. Turn the computer over and remove the cover on the Mini Card compartment. 3. Ground yourself by touching one of the metal connectors on the back of the computer. NOTE: If you leave the area, ground yourself again when you return to the computer. 4. Remove the M2 x 3-mm securing screw. 5. Lift the FCM out of its system board connector.
Back to Contents Page Optical Drive Dell™ Inspiron™ 1525/1526 Service Manual Removing the Optical Drive 1. Follow the procedures in Before You Begin. 2. Turn the computer over. 3. Remove the locking screw from the optical drive. 4. Using a plastic scribe or screw driver, push the notch to release the optical drive from the bay. 5. Slide the optical drive out of the bay. 1 locking screw 2 notch Replacing the Optical Drive 1. Slide the optical drive into the bay. 2.
Back to Contents Page Palm Rest Dell™ Inspiron™ 1525/1526 Service Manual Removing the Palm Rest CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove the center control cover (see Removing the Center Control Cover). 3. Remove the keyboard (see Removing the Keyboard). 4.
1 screws (2) 2 palm rest 3 touch pad connector 4 device status lights LED connector 5 display hinge screw 11. Moving from left to right, carefully lift the palm rest along the rear edge, near the hinge brackets, then gently lift the palm rest to remove it from the computer. Replacing the Palm Rest CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Align the palm rest with the base of the computer and gently snap it into place. 2.
Back to Contents Page ExpressCards Dell™ Inspiron™ 1525/1526 Service Manual Removing an ExpressCard or Blank CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Press the card or blank to remove it from its slot. Save a blank to use when no ExpressCard is installed in a slot. Blanks protect unused slots from dust and other particles.
Back to Contents Page Pin Assignments for I/O Connectors Dell™ Inspiron™ 1525/1526 Service Manual USB Connector Video Connector S-Video TV-Out Connector 1394 Connector HDMI Connector USB Connector Pin Signal 1 USB5V+ 2 USBP– 3 USBP+ 4 GND Video Connector 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 S-Video TV-Out Connector
S-Video Pin Signal 1 GND 2 GND 3 DLUMA-L 4 DCRMA-L 1394 Connector Pin Signal 1 TPB- 2 TPB+ 3 TPA- 4 TPA+ HDMI Connector Pin Signal Pin Signal 1 TMDS Data 2+ 11 2 TMDS Data 2 Shield 12 TMDS Clock- 3 TMDS Data 2- 13 CEC 4 TMDS Data 1+ 14 No Connect 5 TMDS Data 1 Shield 15 DDC Clock 6 TMDS Data 1- 16 DDC Data 7 TMDS Data 0+ 17 Ground 8 TMDS Data 0 Shield 18 TMDS Clock Shield +5V Power
9 TMDS Data 0- 19 Hot Plug Detect 10 TMDS Clock+ 20 SHELL Back to Contents Page
Back to Contents Page Subscriber Identity Module (Optional) Dell™ Inspiron™ 1525/1526 Service Manual Subscriber Identity Modules (SIM) identify users uniquely through an International Mobile Subscriber Identity. Replacing the SIM CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTE: Only GSM (HSDPA) type cards need a SIM. EVDO cards do not use a SIM. 1 1. Follow the procedures in Before You Begin. 2.
Back to Contents Page Speaker Assembly Dell™ Inspiron™ 1525/1526 Service Manual Removing the Speaker Assembly CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove the center control cover (see Removing the Center Control Cover). 3. Remove the keyboard (see Removing the Keyboard). 4. Remove the display assembly (see Removing the Display Assembly). 5.
Back to Contents Page System Board Assembly Dell™ Inspiron™ 1525/1526 Service Manual S-Video Board Charger Board The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes media that provides a utility for transferring the Service Tag to the replacement system board.
1 processor heat sink fan cable connector 2 button board cable connector 3 speaker cable connector 4 wireless sniffer board connector 5 system board 17. Remove the four screws from the top of the system board. NOTE: Depending on your system configuration, the number of screws shown may be greater than the number of screws present in your system. 18. Lift the right side of the system board, and then carefully lift the system board out of the computer.
Removing the S-Video Board CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove all memory modules (see Removing Memory Module). 3. Remove the hard drive (see Removing the Hard Drive). 4. Remove the optical drive (see Removing the Optical Drive). 5. Remove all Mini-Cards (see Removing Mini-Card). 6. Remove the center control cover (see Removing the Center Control Cover). 7.
Charger Board Removing the Charger Board CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Follow the instructions in Before You Begin. 2. Remove all memory module (see Removing Memory Module). 3. Remove the hard drive (see Removing the Hard Drive). 4. Remove the optical drive (see Removing the Optical Drive). 5. Remove all Mini-Cards (see Removing Mini-Card). 6.
Replacing the Charger Board CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide. 1. Align the charger board to the system board in the right direction and gently press to connect the charger board connector to the system board. 2. Replace the two screws securing the charger board to the system board assembly. 3. Follow the steps in Removing the Charger Board in the reverse order.
Back to Contents Page Dell™ Inspiron™ 1525/1526 Service Manual NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates potential for property damage, personal injury, or death. Information in this document is subject to change without notice. © 2007–2008 Dell Inc. All rights reserved.
