Lenovo B50–30 All-In-One Computer Hardware Maintenance Manual
Contents
1. Attention Be sure to read and understand all the safety information before replacing any FRUs Notes FRUs that have a 1 or 2 in the CRU column are Customer Replaceable Units CRUs e 1 identifies parts that are fairly simple to replace requiring few or no tools e 2 identifies parts that are slightly more difficult to replace e N identifies parts that are not to be replaced by the customer ID CPU 17 4785T 2 2 1600 4C 8M 1150 35W CPU 1101090 17 4790S 3 2 1600 4C 8M 1 150 65 CPU SSA0D93139 15 4460T 1 9 1600 4C 6M 1150 35W CPU 1101092 15 4460S 2 9 1600 4C 6M 1150 65W CPU 1101108 113 4150 3 5 1600 2C 3M 1150 54W CPU 1101088 G3240 3 1 1333 2C 3M 1150 54W CPU 1101089 BDPLANAR W B5030 NOK UMA MB 5B20G53729 W B5030 W8P UMA MB 5B20G53732 W B5030 NOK DIS MB 5B20G53728 W B5030 W8P DIS MB 5B20G53730 W B5030 NOK 2G W HDMI IN TV MB 5B20G54554 W B5030 W8P 2G W HDMI IN TV MB 5B20G54572 W B5030 NOK 2G W HDMI OUT MB 5B20G54566 W B5030 W8P 2G W HDMI OUT MB 5B20G54561 W B5030 NOK W HDMI IN TV UMA MB 5B20G54557 W B5030 W8P W HDMI IN TV UMA MB 5B20G54551 W B5030 NOK W HDMI OUT UMA MB 5B20G54573 W B5030 W8P W HDMI OUT UMA MB 5B20G54569 W B5030 NOK 1G W HDMI IN MB 5B20G54563 W B5030 W8P 1G W HDMI IN MB 5B20G54558 W B5030 NOK 1G MB 5B20G54550 W B5030 W8P 1G MB 5B20G54571 W B5030 NOK 2G W HDMI IN MB 5B20G54565 W B5030 W8P 2G W HDMI IN MB 5B20G54567 W B5030 NOK 2G 820A W TV MB 5B20G54562 Copyright Lenovo 2014 492. L M471B5674QHO YKO 2GB D3L 1600S Memory HF 1 100983 HMT425S6AFR6A PB 2GB D3L 1600S Memory HF 1 100643 MT4KTF25664HZ 1G6E1 2GB D3L 1600S Memory 1 100956 Mic R D9PSH 2GB D3L 1600S Memory HF 1 100965 MT8KTF51264HZ 1G6E1 4GB D3L 1600S Memory HF 1 100957 HMT425S6AFR6A PB 2GB D3L 1600S Memory HF 1 100643 M471B1G73DBO YKO 8GB D3L 1600S Memory HF 1 100943 HMT451S6BFR8A PB 4GB D3L 1600S Memory HF 1 100985 HMT451S6BFR8A PB 4GB D3L 1600S Memory HF 1 100985 HMT451S6BFR8A PB 4GB D3L 1600S Memory HF 1 100985 M471B5173DBO YKO 4GB D3L 1600S Memory HF 1 100942 Mic R D9PSH 2GB D3L 1600S Memory HF 1 100965 HMT41GS6BFR8A PB 8GB D3L 1600S Memory HF 1 100986 Mic R D9QBJ 4GB D3L 1600S Memory HF 1 100967 Mic R D9QBJ 4GB D3L 1600S Memory HF 1 100967 Mic R D9QBJ 8GB D3L 1600S Memory HF 1 101012 50 Lenovo B50 30 All In One Computer Hardware Maintenance Manual e O o SGT Grenada 1TB ST1000DX001 SSHD LH SGT Grenada 2TB ST2000DX001 SSHD LH ODD n wooo AE O A liteon PS 2151 08VB ES SLIM 150w PSU 36200624 POWER Chapter 8 FRU lists 51 CAI n wistron 3D camera holder B5030 R Speaker B56X JBL Speaker 25216350 Thermal module CM HELOO106W1GP2 65W CPU DIS Module AVC SL42Q00001 65W CPU DIS Module CM HELOO107W1GP2 65W CPU UMA Module AVC SL42R00001 65W CPU UMA Module Delta BUB1112DDA02 3450RPM 11022FAN SUNON MFB0201V1C010S99 3450RPM 11022FAN N N 31507279 31507281 31507280 31507282 31507283 31507284 N N N
3. nm Sii mA Push out the latches on both sides of the memory socket to release the memory module fj and gently pull the memory module upward to remove it from its socket FJ To install the new memory module a Align the new memory module with the memory socket then insert it and push down on the top edge Make sure the latches lock the memory module in place b Reattach the memory shielding Reattach the foot cover and stand base Replacing the hard disk drive Attention Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the touch screen from scratches or other damage Step 1 Step 2 Step 3 Step 4 Step 5 Remove any media disks CDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right views and Rear view for help with locating the various connectors Remove the stand base Refer to Removing the stand base Remove the
4. Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Remove the rear deco Refer to Replacing the rear deco Step 10 Pushing the camera locking pin outward to release the camera fii Step 11 Slide out the camera as shown HI Step 12 Disconnect the camera data cable from the connector on the camera Step 13 To install the new camera a Connect the data cable to the new camera b Slide the new camera into position secure the camera to the front bezel with the locking pins Step 14 Reattach the rear deco middle cover optical drive stand holder foot cover and stand base Replacing the LED panel module Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the LED panel module Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Chapter 7 Replacing hardware 45
5. Replacing the power cord Removing the stand base Removing the foot cover Replacing the memory module Replacing the hard disk drive Replacing the optical drive Removing the stand holder Removing the middle cover Replacing the converter board Removing the EMI cover Replacing the Wi Fi card Replacing the TV tuner card Replacing the heat sink Replacing the CPU Replacing the system fan Replacing the speaker system Replacing the power switch board Replacing the motherboard Removing the rear deco Replacing the camera Replacing the LED panel moais Chapter 8 FRU lists Chapter 9 General information Additional Service Information 21 21 22 22 23 24 25 26 27 29 30 31 32 33 34 35 36 39 40 41 41 43 44 45 49 59 59 iv Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 1 About this manual This manual contains service and reference information for Lenovo B50 30 All In One computers listed on the cover It is intended only for trained servicers who are familiar with Lenovo computer products Before servicing a Lenovo product be sure to read the Safety Information The description of the TV tuner card in this manual applies only to computers with a TV tuner card installed It does not apply to computers without a TV tuner card Important Safety Information Be sure to read all CAUTION and DANGER sections in this manual before following any of the instruct
6. Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Remove the EMI cover Refer to Removing the EMI cover Step 10 Disconnect the speaker cables from the connector on the motherboard Step 11 Remove the four screws that secure the speaker system to the chassis then lift up the speaker system to remove it Step 12 To install the new speaker system a Place the new speaker system into position then secure it with four screws b Connect the new speaker cables to the connector on the motherboard Step 13 Reattach the EMI cover middle cover optical drive stand holder foot cover and stand base 40 Lenovo B50 30 All In One C
7. Sunrex EKB 10YA GE Sunrex EKB 10YA TR Sunrex EKB 10YA SP B Silk USB KB LVT8 Sunrex EKB 10YA SL B Silk USB KB LVT8 Sunrex EKB 10YA IT B Silk USB KB LVT8 Sunrex EKB 10YA HB B Silk USB KB LVT8 Sunrex EKB 10YA FR B Silk USB KB LVT8 Sunrex EKB 10YA GK B Silk USB KB LVT8 Sunrex EKB 10YA HG B Silk USB KB LVT8 Sunrex EKB 10YA BG B Silk USB KB LVT8 Sunrex EKB 10YA KR B Silk USB KB LVT8 Sunrex EKB 10YA A lA AeA A e B Silk USB KB LVT8 25209124 B Silk USB KB LVT8 25209125 25209126 25209127 25209128 25209129 25209130 25209131 25209132 25209133 25209134 JP B Silk USB KB LVT8 25209135 ea PS Se Se Se Ses ee LY A 54 Lenovo B50 30 All In One Computer Hardware Maintenance Manual N 1 Liteon SK 8861 US 2 4G KB Black8 Liteon SK 8861 TH 2 4G KB Black8 Liteon SK 8861 CS SK 2 4G KB Black8 Liteon SK 8861 DE 2 4G KB Black8 Liteon SK 8861 TR 2 4G KB Black8 Liteon SK 8861 ES 2 4G KB Black8 Liteon SK 8861 SL 2 4G KB Black8 Liteon SK 8861 IT 2 4G KB Black8 Liteon SK 8861 IL 2 4G KB Black8 Liteon SK 8861 FR 2 4G KB Black8 Liteon SK 8861 GR 2 4G KB Black8 Liteon SK 8861 EN FR 2 4G KB Black8 Liteon SK 8861 PT 2 4G KB Black8 Liteon SK 8861 BE EN 2 4G KB Black8 Liteon SM 8861 JP Mouse Black Chapter 8 FRU lists 55 Liteon SK 8861 US EU 2 4G KB Silver8 Liteon SM 8861 WW Mouse Silver Liteon SM 8861 Mouse No A ane Silver 56 Lenovo B50 30 All In One Computer Hardware Maintenance Manual
8. Cable SATA HDD8ODD B5030 Antenna B5030 CARDPOP Board Power Switch B5030 5C50G56071 Converter B5030 5C50G56058 5B40G56050 5B40G56047 5CB0G56073 5CB0G56068 5CBOG56067 5CB0G57234 5CB0G57260 5CB0G57243 5CB0G57266 5CB0G57244 5C10G56056 5C10G56053 5C10G56048 5C10G56072 5C10G56051 5C10G56054 5A30G56060 Accessory Bracket TV Tuner B5030 Bracket ODD B5030 Slide B5030 W TV_HDMI_IN OUT BLK Slide B5030 W HDMI_IN OUT BLK Slide B5030 W TV BLK Slide B5030 W HDMI_OUT BLK Slide B5030 W HDMI_IN BLK Slide B5030 W HDMI_OUT_TV BLK Slide B5030 W HDMI_IN_TV BLK Slide B5030 BLK Cable Cable Camera B5030 Cable Converter to MB B5030 Cable Power Switch Board B5030 Cable TV Tuner B5030 PAL Cable TV Tuner B5030 NTSC 52 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 8 FRU lists 53 IT AN NFC Module NFC Module B5030 5C50G56969 Sunrex EKB 10YA US B Silk USB KB LVT8 25209111 Primax KB4721 US B Silk USB KB LVT8 25209112 Sunrex EKB 10YA TW B Silk USB KB LVT8 25209114 Sunrex EKB 10YA TH B Silk USB KB LVT8 25209115 Sunrex EKB 10YA CZ SL B S USB KB LVT8 25209116 Sunrex EKB 10YA IN B Silk USB KB LVT8 25209117 A Sunrex EKB 10YA RU B Silk USB KB LVT8 25209118 Sunrex EKB 10YA UK B Silk USB KB LVT8 25209119 Sunrex EKB 10YA Nordic B S USB KB LVT8 25209120 Sunrex EKB 10YA LA B Silk USB KB LVT8 25209121 Sunrex EKB 10YA AR B Silk USB KB LVT8 25209122 Sunrex EKB 10YA SW B Silk USB KB LVT8 25209123
9. Refer to Removing the middle cover Step 9 Remove the two screws that secure the rear deco to the chassis then slide the rear deco upward to remove it Step 10 To reattach the rear deco a Line up the rear deco with the guide track on the chassis b Secure the rear deco to the chassis with the two screws Step 11 Reattach the middle cover stand holder optical drive foot cover and stand base Replacing the camera Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the camera Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets 44 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to
10. Remove the memorv modules Refer to Replacing a memorv module Remove the optical drive Refer to Replacing the optical drive Remove the stand holder Refer to Removing the stand holder Remove the middle cover Refer to Removing the middle cover Remove the EMI cover Refer to Removing the EMI cover Remove the heat sink Refer to Replacing the heat sink Remove the CPU Refer to Replacing the CPU Remove the TV Tuner card Refer to Replacing the TV tuner card Remove the WLAN card Refer to Replacing the WLAN card Remove the TV Tuner antenna jack as shown Unplug the following cables from connectors on the motherboard e Converter cable e System fan power cable e Touch control board cable e Optical drive SATA cable Red e Hard disk drive SATA cable Black e Power supply cable 42 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Hard disk drive power cable Power switch board cable Speaker system cable Camera cable LVDS cable Step 17 Remove the seven screws that secure the motherboard to the chassis and lift the motherboard up to remove it rar af Step 18 To install the new motherboard a b c Line up the holes on the new motherboard with the mounting holes chassis and place the new motherboard into position Use the screws to secure the new motherboard to the chassis Connect all the cables to the new motherboard Step 19 Install th
11. Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Disconnect all cables attached to the computer This includes power cords input output I O cables and anv other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Remove the stand base Refer to Removing the stand base Remove the foot cover Refer to Removing the foot cover Remove the optical drive Refer to Replacing the optical drive Remove the stand holder Refer to Removing the stand holder Remove the middle cover Refer to Removing the middle cover Remove the EMI cover Refer to Removing the EMI cover Remove the system fan Refer to Replacing the system fan Remove the speaker system Refer to Replacing the speaker system Remove the rear deco Refer to Removing the rear deco Remove the camera Refer to Replacing the camera Remove the eleven screws that secure the chassis to the LED panel module 46 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 15 Disconnect the LVDS cable from connector as shown HH Step 16 Disconnect the touch control board cables from connector EJ Step 17 Disconnect the power switch board cables from connector Refer to Replacing the power switch board JEN Step 18 Lift up the chassis from the bottom and dis
12. TT AE LW BLK1 8m UL CSA Power Cord R 31026357 LX BS 1 8M C13 JAPAN Power cord LX ASAP 1 8M CCC C13 power cord LX BS 1 8M C13 UK Power cord LX BS 1 8M C13 EN Power cord LX BS 1 8M C13 India Power cord LX BS 1 8M C13 SA Power cord LX BS 1 8M C13 Denmark Power cord Chapter 8 FRU lists 57 Longwell 1 8M SEV C13 power cord 31039732 HLS1 8MC13 Switzerland Power cord 31049516 LX BS 1 8M C13 Switzerland Power cord 31502868 Longwell 1 8M Israel C13 power cord 31039728 HLS1 8MC13 Israel Power cord 31049510 LX BS 1 8M C13 Israel Power cord 31502866 58 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 9 General information This chapter provides general information that applies to all computer models covered by this manual Additional Service Information This chapter provides additional information that the service representative might find helpful Power management Power management reduces the power consumption of certain components of the computer such as the system power supply processor hard disk drives and some monitors Advanced configuration and power interface ACPI BIOS As this computer has an ACPI BIOS system the operating system is allowed to control the power management features of the computer and the settings for Advanced Power Management APM BIOS mode is ignored Not all operating systems support ACPI BIOS mode Automatic Power On features The Automatic Power On featu
13. and numbers up to 16 characters a z and 0 9 For more information see Password considerations on page 13 1 Start the Lenovo BIOS Setup Utility program see Starting the Lenovo BIOS Setup Utilitv program on page 13 2 From the Security menu select Set Administrator Password and press the Enter key 3 The password dialog box will be displayed Type the password then press the Enter key 4 Re type the password to confirm then press the Enter key If you typed the password correctiv the password will be installed To change an Administrator Password do the following 1 Start the Lenovo BIOS Setup Utility program see Starting the Lenovo BIOS Setup Utility program on page 13 2 From the Security menu select Set Administrator Password and press the Enter key 3 The password dialog box will be displayed Type the current password then press the Enter key 4 Type the new password then press the Enter key Re type the password to confirm the new password If you typed the new password correctly the new password will be installed A Setup Noticed confirming that changes have been saved will be displayed To delete a previously set Administrator Password do the following 1 From the Security menu select Set Administrator Password and press the Enter key 2 The password dialog box will be displayed Type the current password and press the Enter key 3 To delete an Administrator Password leave each new pas
14. and to lock the electrical outlet in the off position e If you need to work on a computer that has exposed electrical circuits observe the following precautions Ensure that another person familiar with the power off controls is near you Remember Another person must be there to switch off the power if necessary Use only one hand when working with powered on electrical equipment keep the other hand in your pocket or behind your back Remember There must be a complete circuit to cause electrical shock By observing the above rule you may prevent a current from passing through your body When using a tester set the controls correctly and use the approved probe leads and accessories for that tester 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 the maintenance information Use extreme care when measuring high voltages e Regularly inspect and maintain your electrical hand tools to ensure they are safe to use e Do not use worn or broken tools and testers e Never assume that power has been disconnected from a circuit First check that it has been powered off e Always look carefully for possible hazards in your work area Examples of these hazards are wet floors non grounded power extension cables
15. from the menu 16 Notes Lenovo B50 30 All In One Computer Hardware Maintenance Manual a If you do not want to save the settings select Discard changes and Exit from the menu b Ifyou have changed these settings and want to return to the default settings select Load Optimal Defaults from the menu Exiting the Lenovo BIOS Setup Utility program After you finish viewing or changing settings press the Esc key to return to the Lenovo BIOS Setup Utility program main menu You might have to press the Esc key several times Do one of the following e If you want to save the new settings select Save changes and Exit from the menu When the Save 8 reset window shows select the Yes button and then press the Enter key to exit the Lenovo BIOS Setup Utility program e If you do not want to save the settings select Discard changes and Exit from the menu When the Reset Without Saving window shows select the Yes button and then press the Enter key to exit the Lenovo BIOS Setup Utility program Chapter 5 Using the Setup Utility 17 18 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 6 Symptom to FRU Index The Symptom to FRU index lists error symptoms and possible causes The most likely cause is listed first Always begin with Chapter 4 General Checkout on page 11 This index can also be used to help you decide which FRUs to have available when servicing a computer If you are unable to correct
16. operating svstem and turn off the computer and all attached devices Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and anv other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Remove the stand base Refer to Removing the stand base Remove the foot cover Refer to Removing the foot cover Remove the four screws that secure the stand holder to the chassis then lift up the stand holder to remove it Chapter 7 Replacing hardware 29 Step 7 To reattach the stand holder a Align the holes on the stand holder with mounting holes on the chassis place the stand holder back into position b Secure the stand holder to the chassis with the four screws Step 8 Line up the foot cover with mounting holes on the back of the computer then slide it back into position Step 9 Reattach the stand base Removing the middle cover Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To remove the middle cover Step 1 Remove any media disk
17. other components Attention Use an alcohol pad to wipe the thermal grease off the CPU Step 13 To install the new heat sink a Line up the new heat sink with mounting holes on the motherboard then place it into position b Follow the numbers printed on the new heat sink to secure it in order using the screws c Use the sealing tape to seal the gap in between the system fan and heat sink Step 14 Reattach the EMI cover middle cover optical drive stand holder foot cover and stand base Replacing the CPU Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the CPU Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets 36 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and anv other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer
18. program is used to view and change the configuration settings of your computer regardless of which operating system you are using However the operating system settings might override any similar settings in the Setup Utility program Starting the Lenovo BIOS Setup Utility program To start the Lenovo BIOS Setup Utility program do the following 1 If your computer is already on when you start this procedure shut down the operating system and turn off the computer 2 Press and hold the F1 key then turn on the computer When the Lenovo BIOS Setup Utilitv program is displayed release the F1 key Note If a Power On Password or an Administrator Password has been set the Setup Utility program menu will not be displayed until you type your password For more information see Using passwords Viewing and changing settings System configuration options are listed in the Lenovo BIOS Setup Utilitv program menu To view or change settings see Starting the Setup Utilitv program You must use the keyboard when using the Lenovo BIOS Setup Utility menu The keys used to perform various tasks are displayed on the bottom of each screen Using passwords You can use the Lenovo BIOS Setup Utility program to set passwords to prevent unauthorized persons from gaining access to your computer and data See Starting the Setup Utility program The following types of passwords are available e Administrator Password e Power On Pass
19. stand base Removing the EMI cover Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the EMI cover Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices 32 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and anv other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Remove the stand base Refer to Removing the stand base Remove the foot cover Refer to Removing the foot cover Remove the optical drive Refer to Replacing the optical drive Remove the stand holder Refer to Removing the stand holder Remove the middle cover Refer to Removing the middle cover Remove the three screws that secure the EMI cover to the chassis and then lift it up N gt
20. the problem using this index go to Undetermined problems on page 20 Notes e If you have both an error message and an incorrect audio response diagnose the error message first e If you cannot run the diagnostic tests or you get a diagnostic error code when running a test but did receive a POST error message diagnose the POST error message first e If you did not receive any error message look for a description of your error symptoms in the first part of this index Hard disk drive boot error A hard disk drive boot error can be caused by the following CAI T The startup drive is not included in the boot sequence Check the configuration and ensure the startup drive is configuration in the boot sequence No operating system is installed on the boot drive Install an operating system on the boot drive The boot sector on the startup drive is corrupted The drive must be formatted Do the following 1 Attempt to back up the data on the failing hard disk drive 2 Use the operating system to format the hard disk drive The drive is defective Replace the hard disk drive Power Supply Problems Follow these procedures if you suspect there is a power supply problem Check Verify FRU Action Check that the following are properly installed Reseat connectors e Power Cord e On Off Switch connector e System Board Power Supply connectors e Microprocessor connections O Copyright Lenovo 2014 19 P
21. the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Remove the EMI cover Refer to Removing the EMI cover Step 10 Remove the sealing tape between the system fan and heat sink Step 11 Remove the three screws that secure the system fan to the chassis Step 12 Disconnect the power cable from the motherboard Step 13 Lift up the system fan to remove it Step 14 To install the new system fan a Place the new system fan into position and then secure it to the chassis with three screws b Connect the system fan power cable to the connector on the motherboard c Use the sealing tape to seal the gap in between the system fan and heat sink Chapter 7 Replacing hardware 39 Step 15 Reattach the EMI cover middle cover optical drive stand holder foot cover and stand base Replacing the speaker system Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the speaker system
22. this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the heat sink Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Chapter 7 Replacing hardware 35 Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Remove the EMI cover Refer to Removing the EMI cover Step 10 Remove the sealing tape between the system fan and heat sink Step 11 Remove the six screws that secure the heat sink to the motherboard and chassis Step 12 Slide then lift up the heat sink to remove it Attention Place the heat sink upside down on a flat surface to prevent thermal grease from contaminating
23. ESD damage can occur when there is a difference in charge between objects Protect against ESD damage by equalizing the charge so that the computer the part the work mat and the person handling the part are all at the same charge 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 Chapter 2 Safety information 5 e Keep the parts in protective packages until they are inserted into the product e Avoid contact with other people while handling the part e Wear a grounded wrist strap against your skin to eliminate static on your body e Prevent the part from touching your clothing Most clothing is insulative and retains a charge even when you are wearing a wrist strap e Use the black side of a grounded work mat to provide a static free work surface The mat is especially useful when handling ESD sensitive devices e Select a grounding system such as those listed below to provide protection that meets the specific service requirement Note The use of a grounding system is desirable but not required to protect against ESD damage Attach the ESD ground clip to any frame ground ground braid or green wire ground Use an ESD common ground or reference point when working on a double insulated or battery operated system You can use coax or connector outsi
24. O cables and anv other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Remove the stand base Refer to Removing the stand base 34 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Remove the EMI cover Refer to Removing the EMI cover Step 10 Disconnect the antenna cable from the TV Tuner card Step 11 Remove the screw that secures the TV Tuner card to the motherboard Step 12 Pull the TV Tuner card upward to remove it from the card port on the motherboard Step 13 To install the new TV Tuner card a Insert the notched end of the TV Tuner card into the card port on the motherboard b Secure new the TV Tuner card to the motherboard with the screw c Connect the antenna cable to the new TV Tuner card Step 14 Reattach the EMI cover middle cover optical drive stand holder foot cover and stand base Replacing the heat sink Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for
25. OST error codes Each time you turn the computer on it performs a series of tests to check that the system is operating correctly and that certain options are set This series of tests is called the Power On Self Test or POST POST does the following e Checks some basic motherboard operations e Checks that the memory is working correctly e Starts video operations e Verifies that the boot drive is working POST Error Message Description Action Keyboard error Cannot initialize the keyboard Make sure the keyboard is properly connected to the computer and that no keys are held pressed during POST To purposely configure the computer without a keyboard select Keyboardless operation in Startup and set the option to Enabled The BIOS then ignores the missing keyboard during POST Reboot and Select proper Boot device or Insert Boot The BIOS was unable to find a suitable boot device Make Media in selected Boot device sure the boot drive is properly connected to the computer Make sure you have bootable media in the boot device Undetermined problems 1 Power off the computer 2 Remove or disconnect the following components if connected or installed one at a time a so app f External devices modem printer or mouse Extended video memory External Cache External Cache RAM Hard disk drive Disk drive 3 Power on the computer to re test the system 4 Repeat steps 1 through 3 until you find the failing devi
26. To reattach the EMI cover a Line up the holes on the EMI cover with mounting holes on the chassis then place EMI cover back into position b Secure the EMI cover to the chassis with three screws Reattach the middle cover optical drive stand holder foot cover and stand base Replacing the Wi Fi card Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the Wi Fi card Step 1 Step 2 Step 3 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Chapter 7 Replacing hardware 33 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Remove the stand base Refer to Removing the stand base Remove the foot cover Refer to Removing the foot cover Remove the optical drive Ref
27. ce or component Ifall devices and components have been removed and the problem continues replace the system board 20 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 7 Replacing hardware Attention Do not remove the computer cover or attempt any repair before reading the Important safety information in the Safety and Warranty Guide that was included with your computer To obtain copies of the Safety and Warranty Guide go to the Support Web site at http consumersupport lenovo com Note Use only parts provided by Lenovo General information Pre disassembly instructions Before starting the disassembly procedure make sure that you do the following 1 Turn off the power to the system and all peripherals 2 Unplug all power and signal cables from the computer 3 Place the system on a flat stable surface Copyright Lenovo 2014 21 Replacing the keyboard and mouse Note Your keyboard will be connected to a USB connector at either side or at the rear of the computer To replace the keyboard Step 1 Remove any media disks CDs or memory cards from the drives shut down the computer and turn off all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Locate the connector for the keyboard Refer to Side view of the computer and Rear view of the computer gt S Step 4 Disconnect the defective keyboard cable from the c
28. ckout Attention The drives in the computer you are servicing might have been rearranged or the drive startup sequence may have been changed Be extremely careful during write operations such as copying saving or formatting Data or programs can be overwritten if you select an incorrect drive General error messages appear if a problem or conflict is found by an application the operating system or both For an explanation of these messages refer to the information supplied with that software package Use the following procedure to help determine the cause of the problem Power off the computer and all external devices Check all cables and power coras Set all display controls to the middle position Power on all external devices O A OO N lt Power on the computer e Look for displayed error codes e Look for readable instructions or a main menu on the display If you did not receive the correct response proceed to step 6 If you did receive the correct response proceed to step 7 6 If one of the following happens follow the instruction given e f the computer displays a POST error go to POST error codes e f the computer hangs and no error is displayed continue at step 7 7 If the test stops and you cannot continue replace the last device tested Copyright Lenovo 2014 11 12 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 5 Using the Setup Utility The Setup Utility
29. conditions that may cause or allow power surges and missing safety grounds e Do not touch live electrical circuits with the reflective surface of a plastic dental mirror This surface is conductive and touching a live circuit can cause personal injury and damage to the computer e Do not service the following parts with the power on when they are removed from their normal operating positions in a computer Power supply units Pumps Blowers and fans Motor generators and similar units This practice ensures correct grounding of the units e f an electrical accident occurs Use caution do not become a victim vourself 4 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Switch off power Send another person to get medical aid Safety inspection guide The intent of this inspection guide is to assist you in identifying potential hazards posed by these products Each computer as it was designed and built had required safety items installed to protect users and service personnel from injury This guide addresses only those items However good judgment should be used to identify potential safety hazards due to attachment of features or options not covered by this inspection guide Ifany hazards are present you must determine how serious the apparent hazard could be and whether you can continue without first resolving the problem Consider the following items and the safety hazards they
30. connect the converter cable from the connector on the LED panel EJ Step 20 To install the new the LED panel module The new LED panel module including 1 LED panel 2 LVDS cable 3 Touch control board and touch cable Touch model only a Line up the chassis with new LED panel module place the chassis into position b Connect the converter cable to the connector on the LED panel Chapter 7 Replacing hardware 47 Step 21 48 Fa ae j k Connect the LVDS cable to the connector on the motherboard Connect the touch control board cables to the connector on the touch control board Connect the power switch board cable to the connector on the power switch board Secure the LED panel to the chassis with the eleven screws Attach the camera to the new LED module Line up the rear deco with the guide track on the LED module then slide the rear deco into position Secure the rear deco to the new LED module with the two screws Secure the rear deco with the Line up the chassis and new LED panel with the front bezel and then place it into position Attach the speaker module to the new LED module Reattach the system fan EMI cover middle cover optical drive computer stand foot cover and stand base Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 8 FRU lists This chapter lists the information on the field replaceable units FRUs for Lenovo B50 30 All In One desktop computer
31. ctly before returning the computer to the customer CAUTION Electrical current from power telephone and communication cables can be hazardous To avoid personal injury or equipment damage disconnect any attached power cords telecommunication cables network cables and modem cables before you open the computer covers unless instructed otherwise in the installation and configuration procedures Electrical safety Copyright Lenovo 2014 3 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 electrical currents Many customers have rubber floor mats near their equipment that contain small conductive fibers to decrease electrostatic discharge e Find the room emergency power off EPO switch disconnecting switch or electrical outlet If an electrical accident occurs you can then operate the switch or unplug the power cord quickiv e Do not work alone under hazardous conditions or near equipment that has hazardous voltages e Disconnect all power before Performing a mechanical inspection Working near power supplies Removing or installing Field Replaceable Units FRUs e Before you start to work on the computer unplug the power cord If you cannot unplug it ask the customer to power off the electrical outlet that supplies power to the machine
32. de shells on these systems Use the round ground prong of the AC plug on AC operated computers Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function Proper grounding of the electrical outlet can be verified by a certified electrician Safety notices The CAUTION and DANGER safety notices in this section are provided in the language of English AA DANGER Electrical current from power telephone and communication cables is hazardous To avoid a shock hazard e Do not connect or disconnect any cables or perform installation maintenance or reconfiguration of this product during an electrical storm e Connect all power cords to a properly wired and grounded electrical outlet e Connect any equipment that will be attached to this product to a properly wired outlet e When possible use one hand only to connect or disconnect signal cables e Never turn on any equipment when there is evidence of fire water or structural damage e Disconnect the attached power cords telecommunications cables network cables and modem cables before you open the device covers unless instructed otherwise in the installation and configuration procedures e Connect and disconnect cables as described in the following table when installing moving or opening covers on this product or attached devices 6 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Turn ever
33. directiv with optical instruments and avoid direct exposure to the beam Chapter 2 Safety information 7 218 kg 37 Ibs 232 kg 70 5 Ibs CAUTION Use safe practices when lifting AA CAUTION The power control button on the device and the power switch on the power supplv do not turn off the electrical current supplied to the device The device also might have more than one power cord To remove all electrical current from the device ensure that all power cords are disconnected from the power source AA A A 2 a 1 O A CAUTION Do not place any object weighing more than 82 kg 180 Ibs on top of rack mounted devices 8 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 3 General information This chapter provides general information that applies to all computer models covered by this manual Specifications This section lists the physical specifications for your computer This section lists the physical specifications for your computer Type Lenovo B50 30 This section lists the physical specifications Environment Air temperature Operating 10 to 35 C Transit 20 to 55 C Humidity Operating 35 to 80 Transit 20 to 90 40 C Altitude 86KPa to 106KPa Electrical input Input voltage 90V 264V AC Input frequencv 47Hz 63Hz Copyright Lenovo 2014 9 10 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 4 General Che
34. e following parts to the new motherboard Wi Fi card TV Tuner card CPU Heat sink Memorv module TV Tuner antenna jack Step 20 Reattach the EMI cover middle cover optical drive stand holder foot cover and stand base Removing the rear deco Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It mav be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that vou use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To remove the rear deco Chapter 7 Replacing hardware 43 Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover
35. er to Replacing the optical drive Remove the stand holder Refer to Removing the stand holder Remove the middle cover Refer to Removing the middle cover Remove the EMI cover Refer to Removing the EMI cover Disconnect the antenna cables from the Wi Fi card Remove the screw that secures the Wi Fi card to the motherboard Lift up the Wi Fi card to remove it from the socket To install the new Wi Fi card a Insert the notched end of the Wi Fi card into the card port on the motherboard b Secure new the Wi Fi card to the motherboard with the screw c Connect the antenna cables to the new Wi Fi card Reattach the EMI cover middle cover optical drive stand holder foot cover and stand base Replacing the TV tuner card Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It mav be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that vou use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the TV tuner card Step 1 Step 2 Step 3 Step 4 Remove anv media disks CDs DVDs or memorv cards from the drives shut down the operating svstem and turn off the computer and all attached devices Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I
36. foot cover Refer to Removing the foot cover 26 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 6 Lift out the hard disk drive and bracket as shown Step 7 Step 8 To install the new hard disk drive a Line up the new hard disk drive with the bracket and secure it with the pins b Connect the data and power cables to the new hard disk drive c Slide the hard disk drive and bracket back into position Step 9 Reattach the foot cover and stand base Replacing the optical drive Attention Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the touch screen from scratches or other damage Step 1 Remove any media disks CDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right views and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing t
37. g the foot base 24 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 5 Lift up the stand holder then slide out the foot cover as shown Step 6 To reattach the foot cover a Lift up the stand holder b Line up the foot cover with mounting holes on the back of the computer then slide it back into position Replacing the memory module Attention Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the touch screen from scratches or other damage Step 1 Remove any media disks CDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right views and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Chapter 7 Replacing hardware 25 Step 6 Step 7 Step 8 Step 9 Remove the memorv shielding as shown
38. he foot cover Chapter 7 Replacing hardware 27 Step 6 Locate the optical removal notch and then use a screw driver push the optical drive out Step 7 Push a small iron stick paper clip into the small hole on the optical drive cover so that the disk springs out as shown Step 8 Remove the 2 screws that secure the optical drive to the metal bracket JEM Step 9 Use a small flat head screwdriver to press and push out the pins that secure the cover to the disk BE 28 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 10 Separate the cover from the defective optical drive Step 11 To install the new optical drive a Align the new optical drive with the cover and then push the cover back into position b Slide the new optical drive into the drive bay Step 12 Reattach the foot cover and stand base Removing the stand holder Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To remove the stand holder Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Remove anv media disks CDs DVDs or memorv cards from the drives shut down the
39. he power switch board Step 11 To install the power switch board a Line up the notches on the new power switch board with the keys in the slot b Secure the power switch board with the locking pin Step 12 Reattach the middle cover optical drive stand holder foot cover and stand base Replacing the motherboard Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Chapter 7 Replacing hardware 41 Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the motherboard Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Step 15 Step 16 Remove anv media disks CDs DVDs or memorv cards from the drives shut down the operating svstem and turn off the computer and all attached devices Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and anv other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Remove the stand base Refer to Removing the stand base Remove the foot cover Refer to Removing the foot cover
40. ions Veuillez lire toutes les consignes de type DANGER et ATTENTION du pr sent document avant d ex cuter les instructions Lesen Sie unbedingt alle Hinweise vom Typ ACHTUNG oder VORSICHT in dieser Dokumentation bevor Sie irgendwelche Vorgange durchfihren Leggere le istruzioni introdotte da ATTENZIONE e PERICOLO presenti nel manuale prima di eseguire una qualsiasi delle istruzioni Certifique se de ler todas as instru es de cuidado e perigo neste manual antes de executar qualquer uma das instru es Es importante que lea todas las declaraciones de precauci n y de peligro de este manual antes de seguir las instrucciones DAT BLA ZAN AROMA AA ERA A PUTER AL AER ARAE PUTA SSA Copyright Lenovo 2014 1 2 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Chapter 2 Safety information This chapter contains the safety information that you need to be familiar with before servicing a computer General safety Follow these rules to ensure general safety e Keep the areas around the computer clear and clean during and after maintenance e When lifting any heavy object Ensure you can stand safely without slipping Distribute the weight of the object equally across both feet Lift slowly Never move suddenly or twist when you attempt to lift gt OO N a Lift by standing or by pushing up with your leg muscles this action removes the strain from the muscles in you
41. lenovo Lenovo B50 30 All In One Computer Hardware Maintenance Manual Machine Types FOAU B50 30 lenovo Lenovo B50 30 All In One Computer Hardware Maintenance Manual Machine Types FOAU B50 30 Second Edition September 2014 12th Copyright Lenovo 2014 LIMITED AND RESTRICTED RIGHTS NOTICE If data or software are delivered pursuant a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 Contents Chapter 1 About this manual Important Safety Information Chapter 2 Safety information General safety Electrical safety Safety inspection guide Handling electrostatic discharge sensitive devices Grounding requirements Safety notices Chapter 3 General information Specifications Chapter 4 General Checkout Chapter 5 Using the Setup Utilitv Starting the Lenovo BIOS Setup Utility program Viewing and changing settings Using passwords Enabling or disabling a device Selecting a startup device Exiting the Lenovo BIOS Setup Utility program Chapter 6 Symptom to FRU Index Hard disk drive boot error Power Supply Problems POST error codes Undetermined problems Copyright Lenovo 2014 uh aw wo Q aon on o 11 13 13 13 13 15 16 17 19 19 19 20 20 Chapter 7 bii ib hardware General information koi n Replacing the keyboard and mouse
42. omputer Hardware Maintenance Manual Replacing the power switch board Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the power switch board Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Push the locking pin outward to release the power switch board then lift up the power switch board to remove it HA Step 10 Disconnect the data cable from t
43. omputer and connect the new keyboard cable to the same connector Step 5 The mouse can be replaced using the same method Replacing the power cord Attention Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Step 1 Remove any media disks CDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices 22 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 2 Disconnect the power cord from the connector on the computer E then unplug the power cord from electrical outlet HI B50 30 B50 35 Step 3 Connect the new power cord as shown lenovo em B50 30 B50 35 Removing the stand base o oom Attention Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the touch screen from scratches or other damage Chapter 7 Replacing hardware 23 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Remove any media disks CDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Unplug all
44. power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right views and Rear view for help with locating the various connectors Twist the hand screw ring counter clockwise until the base comes loose to release the stand base from the stand holder PHA Slide the stand base out from the holder then put it aside EJ Refer to Installing the computer stand to reinstall the stand base Removing the foot cover Attention Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It mav be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that vou use a blanket towel or other soft cloth to protect the touch screen from scratches or other damage Step 1 Step 2 Step 3 Step 4 Remove anv media disks CDs or memorv cards from the drives shut down the operating svstem and turn off the computer and all attached devices Unplug all power cords from electrical outlets Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right views and Rear view for help with locating the various connectors Remove the foot base Refer to Removin
45. present e Electrical hazards especially primary power primarv voltage on the frame can cause serious or fatal electrical shock e Explosive hazards such as a damaged CRT face or bulging capacitor e Mechanical hazards such as loose or missing hardware The guide consists of a series of steps presented as a checklist Begin the checks with the power off and the power cord disconnected Checklist 1 Check exterior covers for damage loose broken or sharp edges 2 Power off the computer Disconnect the power cord 3 Check the power cord for a A third wire ground connector in good condition Use a meter to measure third wire ground continuity for 0 1 ohm or less between the external ground pin and frame ground b The power cord should be the appropriate type as specified in the parts listings c Insulation must not be frayed or worn 4 Remove the cover 5 Check for any obvious alterations Use good judgment as to the safety of any alterations 6 Check inside the unit for any obvious hazards such as metal filings contamination water or other liquids or signs of fire or smoke damage 7 Check for worn frayed or pinched cables 8 Check that the power supply cover fasteners Screws or rivets have not been removed or tampered with Handling electrostatic discharge sensitive devices Any computer part containing transistors or integrated circuits ICs should be considered sensitive to electrostatic discharge ESD
46. procedure to start up from any boot device Note Not all CDs DVDs or hard disk drives are bootable 1 Tum off your computer 2 Press and hold the F12 key then turn on the computer When the Startup Device Menu appears release the F12 key Note If the Startup Device Menu does not display using these steps repeatedly press and release the F12 key rather than keeping it pressed when turning on the computer Use t and arrows to select the desired startup device from the Startup Device Menu and press the Enter key to begin Note Selecting a startup device from the Startup Device Menu does not permanentiv change the startup sequence Selecting or changing the startup device sequence To view or permanentiv change the configured startup device sequence do the following 1 Start the Lenovo BIOS Setup Utility program see Starting the Lenovo BIOS Setup Utility program on page 13 2 From the Lenovo BIOS Setup Utility program main menu select the Startup option 3 Press the Enter key and select the devices for the Primary Boot Sequence Read the information displayed on the right side of the screen Use and Zarrows to select a device Use the lt gt or lt gt keys to move a device up or down Use the x key to exclude the device from or include the device in the boot sequence Return to the Lenovo BIOS Setup Utility program menu and select the Exit option 6 Select Save changes and Exit
47. r back Do not attempt to lift any objects that weigh more than 16 kg 35 Ib or objects that you think are too heavy for you e Do not perform any action that would create a hazard for the customer or would make the computer unsafe e Before you start the computer ensure that other service representatives and customer personnel are not in a position that would create a hazard for them e Place removed covers and other parts in a safe place away from all personnel while you are servicing the computer e Keep your tool case away from areas that people may walk through to ensure no one trips over it e Do not wear loose clothing that can be trapped in the moving parts of a machine Ensure that your sleeves are fastened or rolled up above your elbows If your hair is long tie or fasten it back e Insert the ends of your necktie or scarf inside clothing or fasten it with a non conductive clip approximately 8 centimeters 3 inches from the end e Do not wear jewelry chains metal frame eyeglasses or metal fasteners for your clothing Remember Metal objects are good electrical conductors e Wear safety glasses when you are hammering drilling soldering cutting wire attaching springs using solvents or working in any other conditions that might be hazardous to your eyes e After service reinstall all safety shields guards labels and ground wires Replace any safety device that is worn or defective e Reattach all covers corre
48. res within the Power Management menu allow you to enable and disable features that turn on the computer automatically e Wake Up on Alarm You can specify a date and time at which the computer will be turned on automatically This can be either a single event a daily event or a weekly event e Wake Up on LAN This feature allows LAN adapter card to wake the System Copyright Lenovo 2014 59
49. roller or LAN Boot Agent Select whether to enable or disable the Onboard Ethernet Controller or select whether to enable or disable load onboard PXE Preboot Execution Environment To enable or disable a device do the following 1 Start the Setup Utility program see Starting the Setup Utility program on page 13 2 From the Setup Utility program menu select Devices 3 Select an option as follows Select USB Setup press the Enter key then select USB Functions Chapter 5 Using the Setup Utility 15 Select ATA Device Setup press the Enter key then select SATA Mode Select Audio Setup press the Enter key then select Onboard Audio Controller Select Network Setup press the Enter key then select Onboard Ethernet Support or LAN Boot Agent 4 Select Disabled or Enabled and press the Enter key 5 Return to the Lenovo BIOS Setup Utility program menu and select the Exit option 6 Select Save changes and Exit from the menu Notes a If you do not want to save the settings select Discard changes and Exit from the menu b Select IDE AHCI Mode Device driver support is required for ACHI Depending on how the hard disk image was installed changing this setting may prevent the system from booting Selecting a startup device Ifyour computer does not boot from a device such as the CD DVD ROM drive disk or hard disk as expected follow one of the procedures below Selecting a temporary startup device Use this
50. rotect the computer screen from scratches or other damage To replace the converter board Chapter 7 Replacing hardware 31 Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Disconnect the two cables from the converter and then remove the two screws that secure the converter board to the chassis Step 10 Slide the converter board out to remove it Step 11 To install the new converter board a Connect the two cables to the new converter board b Align then slide the new converter board into position c Secure the new converter board with the screw Step 12 Reattach the middle cover optical drive stand holder foot cover and
51. s CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the six screws that secure the middle cover to the chassis then 30 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Step 10 To reattach the middle cover a Line up the middle cover with chassis then place the middle cover back b Secure the middle cover to the chassis with the six screws Step 11 Reattach the stand holder optical drive foot cover and stand base Replacing the converter board Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to p
52. sword line item blank then press the Enter key A Setup Notice confirming that changes have been saved will be displayed 4 Return to the Lenovo BIOS Setup Utility program menu and select the Exit option 5 Select Save changes and Exit from the menu Power On Password When a Power On Password is set you cannot start the Lenovo BIOS Setup Utility program until a valid password is typed from the keyboard Setting changing or deleting a Power On Password Note A password can be any combination of letters and numbers up to 16 characters a z and 0 9 14 Lenovo B50 30 All In One Computer Hardware Maintenance Manual To set a Power On Password do the following 1 Start the Lenovo BIOS Setup Utility program See Starting the Lenovo BIOS Setup Utility program on page 13 2 From the Security menu select Set Power On Password and press the Enter key 3 The password dialog box will be displayed Type the password then press the Enter key 4 Re type the password to confirm If you typed the password correctly the password will be installed To change a Power On Password do the following 1 Start the Lenovo BIOS Setup Utility program See Starting the Lenovo BIOS Setup Utility program on page 13 2 From the Security menu select Set Power On Password and press the Enter key 3 The password dialog box will be displayed Type the current password then press the Enter key 4 Type the new password then press the Enter ke
53. the microprocessor straight down into its socket on the motherboard To secure the microprocessor in the socket close the microprocessor retainer and lock it into position with the small handle Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor Each drop of grease should be 0 03ml 3 tick marks on the grease syringe Reattach the heat sink EMI cover middle cover optical drive stand holder foot cover and stand base 38 Lenovo B50 30 All In One Computer Hardware Maintenance Manual Replacing the system fan Note Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover Note It may be helpful to place the computer face down on a soft flat surface for this procedure Lenovo recommends that you use a blanket towel or other soft cloth to protect the computer screen from scratches or other damage To replace the system fan Step 1 Remove any media disks CDs DVDs or memory cards from the drives shut down the operating system and turn off the computer and all attached devices Step 2 Unplug all power cords from electrical outlets Step 3 Disconnect all cables attached to the computer This includes power cords input output I O cables and any other cables that are connected to the computer Refer to Left and right view and Rear view for help with locating the various connectors Step 4 Remove the stand base Refer to Removing
54. to Removing the stand base Step 5 Remove the foot cover Refer to Removing the foot cover Step 6 Remove the optical drive Refer to Replacing the optical drive Step 7 Remove the stand holder Refer to Removing the stand holder Step 8 Remove the middle cover Refer to Removing the middle cover Step 9 Remove the EMI cover Refer to Removing the EMI cover Step 10 Remove the heat sink Refer to Replacing the heat sink Step 11 Lift the small handle and open the retainer Step 12 Lift the microprocessor straight up and out of the socket E Attention Do not touch the gold contacts on the bottom of the microprocessor When handling the microprocessor touch only the sides Note Do not drop anything onto the microprocessor socket while it is exposed The socket pins must be kept as clean as possible Chapter 7 Replacing hardware 37 Step 13 Step 14 Step 15 Step 16 Step 17 Step 18 Holding the sides of the microprocessor with your fingers remove the protective cover HI that protects the gold contacts on the new microprocessor Hi Holding the sides of the microprocessor with your fingers position the microprocessor so that the notches on the microprocessor are aligned with the tabs in the microprocessor socket Important To avoid damaging the microprocessor contacts keep the microprocessor completely level while installing it into the socket Lower
55. word You do not have to set any passwords to use your computer However if you decide to set passwords read the following sections Password considerations A password can be any combination of letters and numbers up to 16 characters a z and 0 9 For security reasons it is a good idea to use a strong password that cannot be easily compromised We suggest that passwords should follow these rules e For astrong password use 7 16 characters and a mix of letters and numbers e Do not use your name or your user name e Do not use a common word or a common name e Use something significantly different from your previous password Attention Administrator and Power On passwords are not case sensitive Copyright Lenovo 2014 13 Administrator Password Setting an Administrator Password deters unauthorized persons from changing configuration settings You might want to set an Administrator Password if you are responsible for maintaining the settings of several computers After you set an Administrator Password a password prompt is displayed every time you access the Lenovo BIOS Setup Utility program If both the Administrator and Power On Password are set you can type either password However you must use your Administrator Password to change any configuration settings Setting changing or deleting an Administrator password To set an Administrator Password do the following Note A password can be any combination of letters
56. y Re type the password to confirm the new password If you typed the new password correctly the new password will be installed A Setup Noticed confirming that changes have been saved will be displayed To delete a previously set Power On Password do the following 1 From the Security menu select Set Power On Password and press the Enter key 2 The password dialog box will be displayed Type the current password and press the Enter key 3 To delete the Power On Password leave each new password line item blank then press Enter A Setup Notice confirming that changes have been saved will be displayed 4 Return to the Lenovo BIOS Setup Utility program menu and select the Exit option 5 Select Save changes and Exit from the menu Enabling or disabling a device The Devices options is used to enable or disable user access to the following devices USB Functions Select whether to enable or disable USB Universal Serial Bus functions If the functions are disabled no USB devices can be used SATA Mode When this feature is set to Disabled all devices connected to the SATA connectors e g hard disk drives or the optical disk drive are disabled and cannot be accessed Onboard Audio Controller Select whether to enable or disable the Onboard Audio Controller When this feature is set to Disabled all devices connected to the audio connectors e g headphones or a microphone are disabled and cannot be used Onboard Ethernet Cont
57. ything OFF Turn everything OFF First attach all cables to devices First remove power cords from outlets Attach signal cables to connectors Remove signal cables from connectors Attach power cords to outlet Remove all cables from devices Turn device ON CAUTION When replacing the lithium battery use only Part Number 45C1566 or an equivalent type battery recommended by the manufacturer If your system has a module containing a lithium battery replace it only with the same module type made by the same manufacturer The battery contains lithium and can explode if not properly used handled or disposed of Do not e Throw into or inmerse in water e Heat to more than 100 C 212 F e Repair or disassemble Dispose of the battery as required by local ordinances or regulations A CAUTION When laser products such as CD ROMs DVD ROM drives fiber optic devices or transmitters are installed note the following e Do not remove the covers Removing the covers of the laser product could result in exposure to hazardous laser radiation There are no serviceable parts inside the device e Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure A oanore Some laser products contain an embedded Class 3A or Class 3B laser diode Note the following These diodes emit radiation when open Do not stare into the beam do not view
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