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S10L-9952-02 IBM Mobile Systems ThinkPad i Series 1400 (2611) Hardware Maintenance Manual August 1999.
Before using this information and the product it supports, be sure to read the general information under “Introduction” on page 1, “Read This First” on page 20 (for Part I), and “Read This First” on page 106 (for Part II).
Preface About This Manual This manual contains service and reference information for IBM ThinkPad i Series 1400 (2611) products. Use this manual along with the advanced diagnostic tests to trou- bleshoot problems effectively.
Related Diskettes The following diskettes are available through IBM or your IBM Authorized Dealer. Publication Part, Form Number Mobile Systems HMM Volume 2: ThinkPad Computers (Models 340, 355, 360, .
Contents Preface . . . . . . . . . . . . . . . . . . . . . i i i Introduction . . . . . . . . . . . . . . . . . . . 1 Important Service Information ........... 1 FRU Replacement Strategy .......... 1 Hard Disk Drive Replacement Strategy: ..... 2 How to Use Error Messages .
Audio-Related Symptoms . . . . . . . . . . . 43 PC Card (PCMCIA)-Related Symptoms ..... 4 3 Power Management-Related Symptoms ..... 4 3 Peripheral-Device-Related Symptom . . . . . . 44 Modem-Related Symptoms . . . . . . . . . . . 44 Intermittent Problems .
Miscellaneous Parts . . . . . . . . . . . . . . . 103 Service Tools . . . . . . . . . . . . . . . . . . 103 Others . . . . . . . . . . . . . . . . . . . . . 104 ThinkPad i Series 1400 Hardware Maintenance Manual (Part II) ................ 1 0 5 Read This First .
Battery Assembly . . . . . . . . . . . . . . 142 DIMM and DIMM Cover ........... 1 4 3 Modem Board Cover and Modem Board . . . 144 Keyboard . . . . . . . . . . . . . . . . . . 145 Processor Thermal Plate ........... 1 4 7 RTC Battery, Processor EMI Shield and Hard Disk Drive .
Introduction Important Service Information Important Diskette fixes are customer installable. The diskette fixes are located on the PC Company Bulletin Board Service (BBS). The direct phone line for modem con- nection is 919-557-0001 or tieline 255-0001.
settings. Note the current configuration settings (using the View Configuration option) and verify that the settings are in place when service is complete. Hard Disk Drive Replacement Strategy: Always try to run a low-level format before replacing a hard disk drive.
Drive and Diskette Compatibility Matrix The following table provides identification information for 3.5-inch drives. The following table provides compatibility information for 3.5-inch diskettes and 3.5-inch diskette drives. The following table provides identification information for 5.
Safety Notices (Multi-lingual Translations) In this manual, safety notices appear in English with a page number reference to the appropriate multi-lingual, translated safety notice found in this section. The following safety notices are provided in English, French, German, Italian, and Spanish languages.
Safety Notice 2 Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble it, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regu- lations. Use only the battery in the appropriate parts listing.
Safety Notice 3 The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short- circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack.
Safety Notice 4 The lithium battery can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations.
Safety Notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing.
Safety Notice 6 To avoid shock, do not remove the plastic cover that surrounds the lower portion of the inverter card. Afin d'éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d'alimentation.
Safety Notice 8 Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, then disconnect any interconnecting cables.
Safety Information The following section contains the safety information that you need to be familiar with before servicing an IBM mobile computer. General Safety Follow these rules to ensure general safety: Observe good housekeeping in the area of the machines during and after maintenance.
Reinstall all covers correctly before returning the machine to the customer. Electrical Safety Observe the following rules when working on electrical equipment. Important Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live elec- trical currents.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. Observe the special safety precautions when you work with very high voltages; these instructions are in the safety sections of maintenance information.
Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal elec- trical shock). Explosive hazards, such as a damaged CRT face or bulging capacitor. Mechanical hazards, such as loose or missing hard- ware.
Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: Keep the parts in protective packages until they are inserted into the product.
Laser Compliance Statement Some IBM Personal Computer models are equipped from the factory with a CD-ROM drive. CD-ROM drives are also sold separately as options.
puede provocar la exposición a radiaciones peligrosas. Opening the CD-ROM drive could result in exposure to hazardous laser radiation. There are no serviceable parts inside the CD-ROM drive. Do not open. Some CD-ROM drives contain an embedded Class 3A or Class 3B laser diode.
18 ThinkPad i Series 1400 HMM.
ThinkPad i Series 1400 Hardware Maintenance Manual (Part I) Part I of this Hardware Maintenance Manual covers the fol- lowing ThinkPad i Series 1400 computer models: 2611-410 2611-411 2611.
Read This First Before you go to the check procedures, be sure to read this section. Important Notes Only certified trained personnel should service the computer. Read the FRU service procedures before replacing any FRUs. Be extremely careful during write operations such as copying, saving, or formatting.
2. Date of service. 3. Date when part failed. 4. Date of purchase. 5. Failure symptoms, error codes apperaing on display, and beep symptoms. 6. Procedure index and page number in which failing FRU was detected. 7. Failing FRU name and part number. 8. Machine type, model number and serial number.
Screw Notices This computer uses special nylon-coated screws with the following characteristics: They maintain tight connections. They do not easily come loose, even with shock or vibration. They need additional force to tighten. They should be used only once.
Power-On and Setup Password To clear a password from the system, first identify the system password switch by referring to “Switch Locations” on page 95, then follow these steps: 1. Turn off the computer. 2. Unplug the AC Adapter and remove the battery.
Check Procedures Use the following procedure as a guide for computer prob- lems. Notes: 1. The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or mod- ified options can give false errors and invalid system responses.
Symptoms (Verified) Go to Other symptoms Appropriate check instructions in this section, then use appropriate tables in “Symptom-to-FRU Index” on page 36. Power Systems Check To verify the symptom of the problem power on the com- puter using each of the power sources as follows: 1.
If the measured voltage is correct, replace the system board. If the problems still persist, go to “Undetermined Problems” on page 45. If the voltage is not correct, go to the next step.
Note: Signal lines, not used in these steps, are used for communications between the system and the battery. 3. If the voltage is less than +8 V dc, recharge the battery pack. If the voltage is still less than +8 V dc after recharging, replace the battery.
CAUTION: This system cannot work without DIMM memory. Memory errors might stop system operation, show error messages on the screen, or hang the system. Use the following procedure to isolate memory problems: Note: Make sure that the DIMM is properly installed into the connector.
Reconnect the keyboard flexible cables. Replace the TrackPoint board. Replace the keyboard. Replace the system board. The following external input devices are supported for this comput.
2. Go to Diag and select Manual Test , then choose Pointing Dev. from the Test Item and press F2 to execute. If either the pointing stick or the click button does not work, do the following actions one a time to correct the problem. Do not replace a non-defective FRU.
If an error occurs, reconnect the connector on the system board. If the error still remains: 1. Reconnect the CD-ROM drive cable. 2. Replace the CD-ROM drive cable. 3. Replace the CD-ROM drive. 4. Replace the system board. Modem Board Check Do the following to isolate the problem to the system internal modem: 1.
BIOS Utility Your computer has a BIOS Utility that allows you to con- figure the computer an its hardware settings. Note: The computer is also bundled with a Windows- based computer management utility called the Notebook Manager that is similar in function with the BIOS Utility.
System Security Power Management Load Setup Default Settings Navigating the BIOS Utility Keep in mind the following when using the BIOS Utility: From the main menu screen, press the up or down arrow keys to move from one menu item to another; then press Enter to enter the selected menu.
Power Management Features Two power management modes are available in the com- puter system to reduce power consumption and to prolong battery life. Screen Blanking Mode When in screen blanking mode, the following occurs: The LCD backlight turns off.
Note: If the computer enters standby mode and the com- puter is using a communication or I/O PC Card, the PC Card and application program remain active. Hibernation Mode When in hibernation mode, the following occurs: The system status, RAM, VRAM, and setup data are stored on the hard disk.
Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the FRU/Action columns. If a FRU does not solve the problem, put the original part back in the computer.
Error Code Message FRU/Action in Sequence 050 IDE Drive 0 Error Ensure the hard disk drive is set to [Auto] in the "Basic System Set- tings" menu of the BIOS Utility.
Error Code Message FRU/Action in Sequence 006 Equipment Configuration Error Ensure the equipment (diskette drive, hard disk drive, keyboard, external mouse, etc.
Symptom/Error FRU/Action in Sequence Insert system diskette and press < Enter> key to reboot. Ensure that "System Boot Drive" in the "System Secu- rity" menu of the BIOS Utility is not set to [Drive A].
Symptom/Error FRU/Action in Sequence No beep during POST but system runs correctly. Adjust the audio volume control. Speaker connector System board Note: The buzzer is on the System board. Keyboard/TrackPoint-Related Symptoms Symptom/Error FRU/Action in Sequence Keyboard (one or more keys) doesn't work.
Symptom/Error FRU/Action in Sequence No beep, power-on indicator turns on and LCD is blank. Power source (battery and adapter). See “Power Systems Check” on page 25. Reconnect the LCD connector Charger board Processor board Hard disk drive LCD inverter ID LCD LVDS board (for 13.
Symptom/Error FRU/Action in Sequence Indicator incorrectly remains off or on, but system runs cor- rectly. Reconnect the indicator board connector. Indicator board Power-Related Symptoms Symptom/Error FRU/Action in Sequence Power shuts down during operation.
Audio-Related Symptoms Symptom/Error FRU/Action in Sequence Internal speakers make noise or emit no sound. Speaker volume control Go to “Audio Function Check” on page 29. External speakers make noise or emit no sound. Speaker volume control Go to “Audio Function Check” on page 29.
Symptom/Error FRU/Action in Sequence Battery fuel-gauge doesn't go higher than 90%. Remove battery pack and let it cool for 2 hours. Refresh battery (continue using battery until power off, then charge the battery). Battery pack Charger board System board System configuration does not match the installed devices.
Symptom/Error FRU/Action in Sequence Internal modem does not work correctly Go to “Modem Board Check” on page 31. Modem connector Modem board System board Intermittent Problems Int.
7. If the problem remains, replace the following FRUs one at a time. Do not replace a non-defective FRU. TrackPoint board Charger board Audio & battery function connection board LC.
Related Service Procedures This section provides information about the following: “Flash Memory Update” “Status Indicators” “Power Switch” on page 49 “Diagnostic Program .
Symbol Color Meaning (1) Battery status Green Enough battery power remains for operation. Blinking orange The battery pack needs to be charged Orange The battery pack is being charged. (2) Standby mode Green The computer is in standby mode. Blinking green The computer is entering or resuming from hibernation mode.
Power Switch The system has no power shutdown switch. If the com- puter cannot be turned off by pressing the power switch, try pressing (sliding and holding) it for more than 4 seconds to force the system to shutdown.
Press the left and right arrow keys to move around the main menu. Press Enter to enable the selected option. The main options are Diag, Result, SysInfo, Option and Exit. The Diag option lets you select testing items and testing times. The following screen appears when you select Diag from the main menu.
Specify the desired number of tests and press Enter . After you specify the number of tests to perform, the screen shows a list of test items (see below). Press the up and down arrow keys to move the highlight bar from one item to another. Press Space to enable or disable the item.
Test Times show the number of tests to perform. Note: The F1 and F2 keys function only after you finish configuring the Test option. PQA Diagnostic Program Error Codes and Mes- sages Error Code Message FRU/Action in Sequence 16XX RTC (backup battery) error Backup battery 1XXX Processor or System board error Reload BIOS default setting.
Running Modem Dial and Data Transfer Test: Boot from the Diagnostic Program Diskette and select "Modem Dial and Data Transfer Test" from PC DOS 7.0 Startup Menu. Follow the instructions on the screen to execute modem test. If the test fails, go to “Modem Board Check” on page 31.
Running USB Register and Connection Test: Boot from the Diagnostic Program Diskette and select "Running USB Connect/Disconnect Test" from PC DOS 7.0 Startup Menu. Follow the instructions on the screen to execute the USB test. If the test fails, go to “System Board Check” on page 27.
1. Boot from the Utility Program Diskette. 2. Select Thermal Sensor Utility from PC DOS 7.0 Startup menu. 3. Follow the instructions on the screen to set the thresholds. Writing the VPD Data: The EEPROM on the System board contains the vital product data (VPD) — that is, a system unit serial number and a System board serial number.
Product Overview The following shows an overview of the system features. Feature Description Processor Intel** Pentium** processor 266 or 300 MHz –or– AMD-K6-2** processor 300 MHz Bus architecture PCI 5V System memory 32MB or 64MB DIMM card, maximum 128MB (144–pin SDRAM) CMOS RAM 256KB Video 12.
FRU Removals and Replacements This section contains information about removals and replacements. Do not damage any parts. Only certified and trained personnel should service the computer. The arrows in this seciton show the direction of move- ment to remove a FRU, or to turn a screw to release the FRU.
grounding by touching a ground point with one hand before touching these units. An electrostatic discharge (ESD) strap (P/N: 6405959) must be used to establish personal grounding.
Before FRU Removals and Replacements Screw Type Example Explanation Note: Some screws have nylok paste (on the grooves), also referred to as nylon-coated screws, for better friction and increased stability.
Battery Assembly Reverse the steps described above when installing a new battery pack. 60 ThinkPad i Series 1400 HMM.
DIMM and DIMM Cover To install the DIMM: With the notched end of the DIMM toward the right side of the socket, insert the DIMM, at an angle of approximately 20°, into the socket; then press it firmly. Pivot the DIMM until it snaps into place. Side View Step Size (Quantity) Head & Color Torque Memo 1 M2 x 5L (2) Bind head, black 1.
Modem Board Cover and Modem Board To remove the modem board: Press the release latches on both sides of the modem board (3), then pull out the modem board (4). Then discon- nect the modem cable (5). Step Size (Quantity) Head & Color Torque Memo 1 M2 x 5L (2) Bind head, black 1.
Keyboard “Battery Assembly” on page 60 Note: Be careful not to scratch the surface of the name plate cover. Step Size (Quantity) Head & Color Torque Memo 3 M2 x 4L (2) Pan head, silver 2.0 kgf-cm Note: Make sure you use the correct screw for replacement.
When replacing the keyboard, make sure that the 3 cables are clean and insert them directly into the connectors, making sure they contact with the bottom of the connector. Now press down on the latch of the connector to secure. Note: If the cables do not touch the bottom of the con- nector, the keyboard function will be rendered useless.
Hard Disk Drive and HDD Heatsink “Battery Assembly” on page 60 “Keyboard” on page 63 Step Size (Quantity) Head & Color Torque Memo 1 M2.5 x 6L (3) Bind head, black 3.2 kgf-cm w/ nylok paste Note: Make sure you use the correct screw for replacement.
Hard Disk Drive “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 Reverse the steps described above when installing a new hard disk drive. Attention: When removing the hard drive, pull them up at an angle.
PCMCIA Holder “Battery Assembly” on page 60 “Modem Board Cover and Modem Board” on page 62 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 Note: Before removing and replacing the PCMCIA holder, make sure that the PCMCIA cards are removed and the eject levers are not sticking out.
Attention: When removing the PCMCIA holder, pull them up at an angle. It cannot be removed when pulled straight up. TrackPoint Board “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 Step Size (Quantity) Head & Color Torque Memo 2 M2.
Processor Heatsink “Battery Assembly” on page 60 “Keyboard” on page 63 Step Size (Quantity) Head & Color Torque Memo 1 M2 x 14L (4) Pan head, silver 1.
Processor EMI Bracket and Processor Board “Battery Assembly” on page 60 “Keyboard” on page 63 “Processor Heatsink” on page 69 Attention: The processor board is ESD-sensitive and can be damaged easily, especially the pins around the processor chip.
RTC Battery (Backup Battery) Safety Notice 4: Translations in "Safety Notices (Multi-lingual Trans- lations)" section: CAUTION: The backup battery is a lithium battery and can cause fire, explosion or severe burns.
LCD Assembly “Battery Assembly” on page 60 “Keyboard” on page 63 “Processor Heatsink” on page 69 Note: For 13.3–inch LCD models, a LVDS board is addi- tionally installed as shown at 7. Step Size (Quantity) Head & Color Torque Memo 2 M2.
Upper Cover (Keyboard Bezel) “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 Step Size (Quantity) Head & Color Torque Memo 1 M2.
Note: The upper cover has several latches. When removing the upper cover from the base cover, gently release these latches, then raise the side of the upper cover facing the palm rest to remove it.
CD Control Card “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 “Upper Cover (Keyboard Bezel)” on page 73 Step Size (Quantity) Head & Color Torque Memo 1 M2 x 4L (2) Pan head, silver 1.
Modem Connector (RJ11 Cable Assembly) “Battery Assembly” on page 60 “Modem Board Cover and Modem Board” on page 62 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink.
DC/DC Charger “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” o.
Audio Cable and Speaker Cable “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “L.
Audio PCB “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 “Upper Cover (Keyboard Bezel)” on page 73 Step Size (Quantity) Head & Color Torque Memo 1 M2.
Fan Assembly “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 “Upper Cover (Keyboard Bezel)” on page 73 Step Size (Quantity) Head & Color Torque Memo 2 M2.
Audio Connection Board “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 “Upper Cover (Keyboard Bezel)” on page 73 Attention: When removing the Audio Connection Board, pull it up at an angle.
Diskette and CD-ROM Drives Assembly “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 .
CD-ROM Module CAUTION: Do not diassemble the CD-ROM; there is no user adjustments or serviceable parts inside. The use of controls, adjustments or performing procedures other than those specified may result in hazardous radiation exposure. Do not apply any extra force to the CD-ROM drive when removing it.
Diskette Drive with Bezel Step Size (Quantity) Head & Color Torque Memo 9 M2.5 x 3.5L (4) Bind head, black 1.6 kgf-cm w/ nylok paste Note: Make sure you use the correct screw for replacement.
System Board “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 “Upper Cover (Keyboard Bezel)” on page 73 Notes: 1.
LCD Front Cover “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 Note: When removing the LCD, take note of the following: 1.
Speakers “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 “Upper Cover (Keyboard Bezel)” on page 73 Step Size (Quantity) Head & Color Torque Memo 1 M2 x 4L (4) Pan head, silver 1.
Inverter “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on pag.
Indicator Board and Microphone Cable Assembly “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on .
Hinge “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Assembly” on page 72 Step Size (Quantity) Head & Color Torque Memo 1 M2.
LCD Panel and LCD Cable “Battery Assembly” on page 60 “Keyboard” on page 63 “Hard Disk Drive and HDD Heatsink” on page 65 “Processor Heatsink” on page 69 “LCD Ass.
Step Size (Quantity) Head & Color Torque Memo 1 M3 x 3.5L (4) Bind head, silver 1.6 kgf-cm Note: Make sure you use the correct screw for replacement.
Locations Front View 1. LCD latches 2. LCD 3. Speakers 4. Indicator panel 5. Internal modem port 6. PC Card slots 7. PC Card eject buttons 8. Diskette drive 9. Diskette-drive-activity indicator 10. Diskette eject button 11. CD-ROM drive 12. CD-ROM eject button 13.
23. TrackPoint 24. Fn key 25. Built-in microphone Bottom View 1. Battery-pack latch 2. Tilt feet 3. Memory slot door Rear View 1. Power jack 2. External-input-device (PS/2) connector 3. Serial connector 4. Parallel connector 5. Expansion connector 6. External monitor connector 7.
12. Microphone-in jack 13. Audio volume control 14. Battery pack Switch Locations There are two switches found on the system board. Refer to the figure and tables below on how to set these switches. Note: There is no switch to set the processor voltage and speed.
System Unit Parts Listing 96 ThinkPad i Series 1400 HMM.
No. Description FRU No. Qty. 1 Nameplate cover 05K5950 1 2 Heatsink HDD 05K5680 1 3 PCMCIA holder 05K5476 1 4 HDD module assy 3.2 GB 05K8974 1 HDD module assy 4.
No. Description FRU No. Qty. 30 KBD bezel 05K5676 1 KBD bezel 10L1938 1 31 Lid S/W asm 05K5479 1 32 Heatsink processor 05K5682 1 Heatsink AMD processor 10L1293 1 33 Keyboard (US) 02K4737 1 Keyboard (J.
LCD Unit Parts Listing 12.1" LCD Unit Parts Listing ThinkPad i Series 1400 (Part I) 99.
No. Description FRU No. Qty. 1 LCD bezel asm 12.1" 05K5674 1 2 Speaker asm (R,L) 05K2827 1 3 Hinge (R,L) 05K5669 1 3-1 Hinge cover (R,L) 05K5949 1 4 12.1" TFT LCD 05K9383 1 5 FPC 12.1" ASSY 05K2795 1 6 LCD inverter 12.1" 10L1151 1 7 LED BD 10L1168 1 8 LCD rear cover asm 12.
13.3" LCD Unit Parts Listing ThinkPad i Series 1400 (Part I) 101.
No. Description FRU No. Qty. 1 LCD bezel asm 13.3" 05K5675 1 2 Speaker asm (R,L) 05K2827 1 3 Hinge (R,L) 05K5669 1 3-1 Hinge cover (R,L) 05K5949 1 4 13.3" TFT LCD 05K9372 1 5 FPC 13.3" ASSY 05K2797 1 6 LCD inverter 13.3" 10L1167 1 7 LED BD 10L1168 1 8 LCD rear cover asm 13.
Miscellaneous Parts Description FRU No. Qty. Rubber pack Rubber feet LCD screw caps 05K5954 Mylar pack 05K6040 Screw pack 10L1911 Nameplate pack 05K5955 Headset (for Japan) 02K4941 Miscellaneous Screw.
Others Description FRU No. Qty. AC Adapter 45W (2-pin inlet) 12J0538 1 AC Adapter 45W (3-pin inlet) 12J0539 1 Power cord (Argentina, Australia, Papua New Guinea, New Zealand, Paraguay, Uruguay) 76H351.
ThinkPad i Series 1400 Hardware Maintenance Manual (Part II) Part II of this Hardware Maintenance Manual covers the following ThinkPad i Series 1400 computer models: 2611-40A 2611-40C 2611.
Read This First Before you go to the check procedures, be sure to read this section. Important Notes Only certified trained personnel should service the computer. Read the FRU service procedures before replacing any FRUs. Be extremely careful during write operations such as copying, saving, or formatting.
2. Date of service. 3. Date when part failed. 4. Date of purchase. 5. Failure symptoms, error codes apperaing on display, and beep symptoms. 6. Procedure index and page number in which failing FRU was detected. 7. Failing FRU name and part number. 8. Machine type, model number and serial number.
Screw Notices This computer uses special nylon-coated screws with the following characteristics: They maintain tight connections. They do not easily come loose, even with shock or vibration. They need additional force to tighten. They should be used only once.
Power-On and Setup Password To clear a password from the system, first identify the system password switch by referring to “Switch Locations” on page 180, then follow these steps: 1. Turn off the computer. 2. Unplug the AC Adapter and remove the battery.
Check Procedures Use the following procedure as a guide for computer prob- lems. Notes: 1. The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or mod- ified options can give false errors and invalid system responses.
Symptoms (Verified) Go to Other symptoms Appropriate check instructions in this section, then use appropriate tables in “Symptom-to-FRU Index” on page 122. Power Systems Check To verify the symptom of the problem, power on the com- puter using each of the power sources as follows: 1.
If the measured voltage is correct, replace the system board. If the problems still persist, go to “Undetermined Problems” on page 131. If the voltage is not correct, go to the next step.
Note: Signal lines, not used in these steps, are used for communication between the system and the battery. 3. If the voltage is less than +8 V dc, recharge the battery pack. If the voltage is still less than +8 V dc after recharging, replace the battery.
CAUTION: This system cannot work without DIMM memory. Memory errors might stop system operation, show error messages on the screen, or hang the system. Use the following procedure to isolate memory problems: Note: Make sure that the DIMM is properly installed into the connector.
Replace the System board. The following external input devices are supported for this computer: Numeric keypad Mouse (PS/2 compatible) Keyboard If any of these devices do not work, reconnect the cable connector and repeat the failing operation.
If either the pointing stick or the click button does not work, do the following actions one a time to correct the problem. Do not replace a non-defective FRU. 1. Reconnect the keyboard flexible cables and the TrackPoint flexible cable. 2. Replace the TrackPoint board.
If an error occurs, reconnect the connector on the system board. If the error still remains: 1. Reconnect the CD-ROM/DVD-ROM drive cable. 2. Replace the CD-ROM/DVD-ROM drive cable. 3. Replace the CD-ROM/DVD-ROM drive. 4. Replace the system board. Modem Board Check Do the following to isolate the problem to the system internal modem: 1.
BIOS Utility Your computer has a BIOS Utility that allows you to con- figure the computer an its hardware settings. Note: The computer is also bundled with a Windows- based computer management utility similar in func- tion with the BIOS Utility called the Notebook manager.
Navigating the BIOS Utility Keep in mind the following when using the BIOS Utility: From the main menu screen, press the up or down arrow keys to move from one menu item to another; then press Enter to enter the selected menu. Parameters displayed in low brightness (grayed out) are not user-configurable.
Power Management Features Two power management modes are available in the com- puter system to reduce power consumption and to prolong battery life. Screen Blanking Mode When in screen blanking mode, the following occurs: The LCD backlight turns off.
Note: If the computer enters standby mode and the com- puter is using a communication or I/O PC Card, the PC Card and application program remain active. Hibernation Mode When in hibernation mode, the following occurs: The system status, RAM, VRAM, and setup data are stored on the hard disk.
Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the FRU/Action columns. If a FRU does not solve the problem, put the original part back in the computer.
Error Code Message FRU/Action in Sequence 050 IDE Drive 0 Error Hard disk connection board Hard disk drive System board 054 IDE Drive(s) Disabled Hard disk drive cable Hard disk dr.
Beep Symptoms Symptom/Error FRU/Action in Sequence Five short beeps, power-on indicator turns on then off and LCD is blank. Ensure that "System Boot Drive" in the "System Secu- rity" menu of the BIOS Utility is not set to Drive A‘.
Symptom/Error FRU/Action in Sequence No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT. Reconnect the LCD connec- tors.
LCD FRU Replacement Notice The TFT LCD for the notebook computer contains over 2,359,296 thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns.
Symptom/Error FRU/Action in Sequence Unreadable LCD screen. Missing pels in char- acters. Abnormal screen Wrong color dis- played. Reconnect all LCD connec- tors LCD inverter ID LCD FPC cable LCD inverter LCD System board LCD has extra hori- zontal or vertical lines displayed.
Indicator-Related Symptoms Symptom/Error FRU/Action in Sequence Indicator incorrectly remains off or on, but system runs cor- rectly. Reconnect the indicator board connector. Indicator board Power-Related Symptoms Symptom/Error FRU/Action in Sequence Power shuts down during operation.
Audio-Related Symptoms Symptom/Error FRU/Action in Sequence Internal speakers make noise or emit no sound. Speaker volume control Go to “Audio Function Check” on page 115. External speakers make noise or emit no sound. Speaker volume control Go to “Audio Function Check” on page 115.
Symptom/Error FRU/Action in Sequence Battery fuel-gauge doesn't go higher than 90%. Remove battery pack and let it cool for 2 hours. Refresh battery (continue using battery until power off, then charge the battery). Battery pack DC/DC charger System board System configuration does not match the installed devices.
Modem-Related Symptoms Symptom/Error FRU/Action in Sequence Internal modem does not work correctly Go to “Modem Board Check” on page 117. Modem connector Modem board System board I.
7. If the problem remains, replace the following FRUs one at a time. Do not replace a non-defective FRU. TrackPoint board DC/DC charger Audio PCB LCD assembly System board 132 Thin.
Related Service Procedures This section provides information about the following: “Flash Memory Update” “Status Indicators” “Power Switch” on page 135 “Diagnostic Program.
Symbol Color Meaning (1) Battery status Green Enough battery power remains for operation. Blinking orange The battery pack needs to be charged Orange The battery pack is being charged. (2) Standby mode Green The computer is in standby mode. Blinking green The computer is entering or resuming from hibernation mode.
Power Switch If the computer cannot be turned off by pressing the power switch, try pressing it for more than 4 seconds to force the system to shutdown. Diagnostic Program Diskette The Diagnostic Program Diskette (P/N: 09N1020) contains the PC Doctor diagnostics program.
2. Press the up and down arrow keys to move in a selected menu; then press Enter to enable the high- lighted option. Note: You can press F1 for help. Maintenance Program Diskette The Maintenance Progr.
Note: If the LCD has no display after changing the ID code, make sure you write the correct ID code or try reconnecting the LCD FPC cable connectors. Setting the Thermal Sensor: The system is equipped with sensors to protect against system over- heating.
Fn Key Combinations The following table shows the Fn key and function key combinations and their corresponding functions. The Fn key works independently of the operating system. The operating system obtains the status through the system management interface to control the system.
Product Overview The following shows an overview of the system features. Feature Description Processor Intel** Mobile Pentium** processor 366 MHz –or– Intel** Mobile Celeron** processor 366 MHz Bus architecture PCI System memory 32MB or 64MB DIMM card, maximum 128MB (144–pin SDRAM) CMOS RAM 256KB Video 12.
FRU Removals and Replacements This section contains information about removals and replacements. Do not damage any parts. Only certified and trained personnel should service the computer. The arrows in this section show the direction of move- ment to remove a FRU, or to turn a screw to release the FRU.
Before FRU Removals and Replacements Screw Type Example Explanation Note: Some screws have nylock paste (on the grooves) for better friction and increased stability.
Battery Assembly 1 2 3 Reverse the steps described above when installing a new battery pack. 142 ThinkPad i Series 1400 HMM.
DIMM and DIMM Cover 1 2 3 4 To install the DIMM: With the notched end of the DIMM toward the right side of the socket, insert the DIMM, at an angle of approximately 20°, into the socket; then press it firmly. Pivot the DIMM until it snaps into place.
Modem Board Cover and Modem Board 1 3 2 To remove the modem board: Disconnect the modem cable (4); then press the release latches on both sides of the modem board (5), and pull out the modem board (6). 5 6 4 Step Size (Quan- tity) Head & Color Torque Memo 2 M2 x 5L (2) Bind head, black 1.
Keyboard “Battery Assembly” on page 142 1 2 Note: Be careful not to scratch the surface of the name plate cover. 3 Step Size (Quan- tity) Head & Color Torque Memo 3 M2 x 4L (2) Pan head, silver 1.6 kgf-cm Note: Make sure you use the correct screw for replacement.
4 5 6 8 7 When replacing the keyboard, make sure that the 3 cables are clean and insert them directly into the connectors, making sure they contact with the bottom of the connector. Now press down on the latch of the connector to secure. Note: If the cables do not touch the bottom of the con- nector, the keyboard function will be rendered useless.
Processor Thermal Plate “Battery Assembly” on page 142 “Keyboard” on page 145 1 2 4 3 Step Size (Quan- tity) Head & Color Torque Memo 1 M2 x 14L (3) Pan head, silver 1.6 kgf-cm 2 M2.5 x 6L (2) Bind head, black 3.2 kgf-cm w/ nylock paste 3 M2.
RTC Battery, Processor EMI Shield and Hard Disk Drive “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 2 1 4 3 Safety Notice 4 The backup battery (1) is a lithium battery and can cause a fire, an explosion, or severe burns.
6 5 6 7 Reverse the steps described above when installing a new hard disk drive. CAUTION: Do not apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incor- rect handling can cause damage and permanent loss of data on the hard disk.
PCMCIA Holder “Battery Assembly” on page 142 “Modem Board Cover and Modem Board” on page 144 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 1 Note: Before removing and replacing the PCMCIA holder, make sure that the PCMCIA cards are removed and the eject levers are not sticking out.
LCD Assembly “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 2 1 1 3 5 4 8 6 7 Note: For 14.1–inch LCD models, a LVDS board is addi- tionally installed as shown at 3. Step Size (Quan- tity) Head & Color Torque Memo 2 M2.
Step Size (Quan- tity) Head & Color Torque Memo 3 M2 x 14L (2) (for 12.1-inch LCD assembly) Pan head, silver 1.6 kgf-cm M2 x 20L (2) (for 14.1-inch LCD assembly) Pan head, silver 1.6 kgf-cm Note: Make sure you use the correct screw for replacement.
Upper Cover (Keyboard Bezel) “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 1 4 3 2 5 Step Size (Quan- tity) Head & Color Torque Memo 1 M2.
6 Note: The upper cover has several latches. When removing the upper cover from the base cover, gently release these latches, then raise the side of the upper cover facing the palm rest to remove it. Be careful not to break the latches. Step Size (Quan- tity) Head & Color Torque Memo 2 M2.
CD Control Card “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on p.
TrackPoint Board and Modem Connector (RJ11 Cable Assembly) “Battery Assembly” on page 142 “Modem Board Cover and Modem Board” on page 144 “Keyboard” on page 145 “Processo.
DC/DC Charger “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on pag.
Audio Connector Board and S-Video PCB “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and H.
Audio Cable and Speaker Cable “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk.
To install the speaker cable: When re-inserting the speaker cable, one end is connected to the Audio PCB underneath the palm rest. You then align the cable, fol- lowing the border of the chassis and connect it to the inverter cable as shown in the diagram.
Audio PCB “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 “Upper Cover (Keyboard Bezel)” on page 153 2 1 Step Size (Quan- tity) Head & Color Torque Memo 1 M2.
Fan Assembly “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page.
Diskette and CD-ROM/DVD-ROM Drives Assembly “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield.
CD-ROM/DVD-ROM-drive-emergency-eject hole to open the CD/DVD tray. CD-ROM/DVD-ROM Module 3 2 1 1 CAUTION: Do not diassemble the CD-ROM/DVD-ROM; there is no user adjustments or serviceable parts inside. The use of controls, adjustments or performing procedures other than those specified may result in hazardous radiation exposure.
Diskette Drive with Bezel 6 4 5 7 4 Step Size (Quan- tity) Head & Color Torque Memo 4 M2.5 x 3.5L (4) Bind head, black 1.6 kgf-cm w/ nylock paste Note: Make sure you use the correct screw for replacement.
System Board “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 “Upper Cover (Keyboard Bezel)” on page 153 2 1 4 3 Notes: 1.
LCD Front Cover (12.1-inch) “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 1 2 3 4 3 Note: When removing the LCD, take note of the following: 1.
2. The LCD front cover has several latches. Release these latches; then remove the LCD cover. Be careful not to break these latches. 3. Gently push the two hooks (3) outward to remove the LCD front cover.
1 3 2 4 5 Note: There are adhesive tape attached to the micro- phone cable assembly. Do not forget to put them back when reinstalling. LCD Panel, LCD Cable and Inverter “Battery Assembly” on p.
1 2 4 1 3 7 8 5 6 Attention: After you replace the LCD or inverter, follow the instructions in “Setting the LCD Panel ID” on page 136. Step Size (Quan- tity) Head & Color Torque Memo 1 M3 x 5L (2) (LCD) Bind head, black 3.2 kgf-cm M2 x 4L (2) (Inverter) Pan head, silver 2.
Hinge “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 “LCD Front Cover (12.
LCD Front Cover (14.1-inch) “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 1 2 3 3 4 Note: When removing the LCD, take note of the following: 1.
2. The LCD front cover has several latches. Release these latches; then remove the LCD cover. Be careful not to break these latches. 3. Gently push the two hooks (3) outward to remove the LCD front cover.
1 3 2 5 4 Note: There are adhesive tape attached to the micro- phone cable assembly. Do not forget to put them back when reinstalling. LCD Panel, LCD Cable and Inverter “Battery Assembly” on p.
1 2 1 3 4 5 6 7 8 Attention: After you replace the LCD or inverter, follow the instructions in “Setting the LCD Panel ID” on page 136. Step Size (Quan- tity) Head & Color Torque Memo 1 M3 x 5L (2) (LCD) Bind head, black 3.2 kgf-cm M2 x 4L (2) (Inverter) Pan head, silver 2.
2 2 1 Step Size (Quan- tity) Head & Color Torque Memo 1 M2 x 4L (4) Pan head, silver 2.0 kgf-cm Note: Make sure you use the correct screw for replacement.
Hinge “Battery Assembly” on page 142 “Keyboard” on page 145 “Processor Thermal Plate” on page 147 “RTC Battery, Processor EMI Shield and Hard Disk Drive” on page 148 “LCD Assembly” on page 151 “LCD Front Cover (12.
Locations Front View 1. LCD latches 2. LCD 3. Speakers 4. Indicator panel 5. Internal modem port 6. PC Card slots 7. PC Card eject buttons 8. Diskette drive 9. Diskette-drive-activity indicator 10. Diskette eject button 11. CD-ROM/DVD-ROM drive 12. CD-ROM/DVD-ROM eject button 13.
23. TrackPoint 24. Fn key 25. Built-in microphone Bottom View 1. Battery-pack latch 2. Tilt feet 3. Memory slot door Rear View 3 4 5 6 7 8 9 10 11 12 13 14 15 2 1 1. Power jack 2. Universal serial bus (USB) connector 3. External-input-device (PS/2) connector 4.
12. Microphone-in jack 13. Audio volume control 14. Battery pack Switch Locations There are two switches found on the system board. Refer to the tables below on how to set these switches. Keyboard Language (SW3, Switch 1, 2 and 3) Setting Password (SW3, Switch 4) Setting Non-configurable Switches (SW4, Switch 1 and 2) Keyboard Language Japanese U.
System Unit Parts Listing 1 2 3 4 5 32 6 7 28 29 30 31 8 22 23 24 25 25-1 26 27 13 12 11 10 9 ThinkPad i Series 1400 (Part II) 181.
21-1 21 20 19 18 14 15 16 17 182 ThinkPad i Series 1400 HMM.
No. Description FRU No. Qty. 1 Nameplate cover asm 10L1961 1 2 Heatsink processor 05K6236 1 3 PCMCIA holder 05K5476 1 4 HDD module assy 6.4 GB 05K9116 1 HDD module assy 6.
No. Description FRU No. Qty. 25-1 S-video bracket 27L6476 1 26 DC/DC charger 10L1345 1 27 Bracket processor EMI 05K6237 1 28 Cable assembly Microphone Microphone rubber Speaker cable LED cable Y-cable.
No. Description FRU No. Qty. Keyboard (Norwegian) 02K6375 1 Keyboard (Swedish/Finnish) 02K6374 1 Keyboard (Dutch) 02K6373 1 Keyboard (Italy) 02K6377 1 Keyboard (EURO Spanish) 02K6378 1 Keyboard (Belgi.
LCD Unit Parts Listing 12.1" LCD Unit Parts Listing 2 1 3-1 3 4 9 5-1 7 5 6 8 186 ThinkPad i Series 1400 HMM.
No. Description FRU No. Qty. 1 LCD bezel asm 12.1" 05K5674 1 2 Speaker asm (R,L) 05K2827 1 3 Hinge (R,L) 05K5669 1 3-1 Hinge cover (R,L) 05K5949 1 4 12.1" TFT LCD (SANYO) 05K9528 1 12.1" TFT LCD (HITACHI) 05K9383 1 5 FPC 12.1" assy (for Sanyo LCD) 27L0477 1 FPC 12.
14.1" LCD Unit Parts Listing 3 2 1 3-1 4 9 10 9 5-1 11 12 5 6 7 8 188 ThinkPad i Series 1400 HMM.
No. Description FRU No. Qty. 1 LCD bezel asm 14.1" 05K6232 1 2 Speaker asm (R,L) FOR 14.1" 02K6299 1 3 Hinge (R,L) FOR 14.1" 05K6234 1 3-1 Hinge cover (R,L) 05K5949 1 4 14.1" TFT LCD (LG) 05K9396 1 14.1" TFT LCD (IBM) 05K9538 1 5 FPC 14.
Miscellaneous Parts Description FRU No. Qty. Kitting pack for rubber Rubber foot-F LCD side screw cap LCD blind cap 05K5954 Pointing stick cap 84G6536 Port replicator 05K5594 MYLAR pack 05K6040 Screw kit Screw mach pan M2*14L NI Screw mach pan M2*4L NI Screw wafer NYLO M2.
Telephone/Modem Description FRU No. Qty. Modem cable (German) 27L0441 Modem cable (UK, NZ) 27L0442 Modem cable (France) 27L0443 Modem cable (Holland) 27L0444 Modem cable (Sweden) 27L0445 Modem cable (.
Power Cord Description FRU No. Qty. US/Canada/Taiwan 76H3516 Europe 76H3518 UK 76H3524 Italy 76H3530 Switzerland 76H3528 Japan 13H5273 China 02K0539 Korea 76H3535 Australia/New Zealand 76H3514 192 Thi.
Notices References in this publication to IBM products, pro- grams, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only IBM product, program, or service may be used.
194 ThinkPad i Series 1400 HMM.
Trademarks The following terms are trademarks or service marks of IBM Corporation in the United States and other countries: IBM PS/2 ThinkPad TrackPoint TrackPoint IV The following terms are trademarks or service marks of other companies as follows: AMD-K6-2 Advanced Micro Devices, Inc.
IBM Part Number: 37L5192 Printed in U.S.A. S1ðL-9952-ð2.
Ein wichtiger Punkt beim Kauf des Geräts IBM 1400 (2611) (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie IBM 1400 (2611) noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für IBM 1400 (2611) - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von IBM 1400 (2611) reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über IBM 1400 (2611) erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon IBM 1400 (2611) besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von IBM 1400 (2611) verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit IBM 1400 (2611). Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei IBM 1400 (2611) gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
