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Preface

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Notebook Computer

N770WU

Service Manual

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Summary of Contents for N770WU

Page 1: ...Preface I Preface Notebook Computer N770WU Service Manual ...

Page 2: ...le or in part be reproduced translated transmitted or reduced to any machine readable form without prior consent from the vendor manufacturer or creators of this publica tion except for copies kept by the user for backup purposes Brand and product names mentioned in this publication may or may not be copyrights and or registered trademarks of their respective companies They are mentioned for ident...

Page 3: ...servicing and or upgrading components of the N770WU series notebook PC The following information is included Chapter 1 Introduction provides general information about the location of system elements and their specifications Chapter 2 Disassembly provides step by step instructions for disassembling parts and subsystems and how to upgrade elements of the system Appendix A Part Lists Appendix B Schem...

Page 4: ...to report a gas leak in the vicinity of the leak 4 Use only the power cord and batteries indicated in this manual Do not dispose of batteries in a fire They may explode Check with local codes for possible special disposal instructions 5 This product is intended to be supplied by a Listed Power Unit with an AC Input of 100 240V 50 60Hz DC Output of 19V 2 1A 40 Watts minimum AC DC Adapter CAUTION Th...

Page 5: ... down properly and don t forget to save your work Remember to periodically save your data as data may be lost if the battery is depleted Do not expose the computer to any shock or vibration Do not place it on an unstable surface Do not place anything heavy on the computer Do not expose it to excessive heat or direct sunlight Do not leave it in a place where foreign matter or mois ture may affect t...

Page 6: ...rpose If you do not have access to a compatible outlet have a qualified electrician install one When you want to unplug the power cord be sure to disconnect it by the plug head not by its wire Make sure the socket and any extension cord s you use can support the total current load of all the connected devices Before cleaning the computer make sure it is disconnected from any external power supplie...

Page 7: ...ur hands or metal objects Battery Guidelines The following can also apply to any backup batteries you may have If you do not use the battery for an extended period then remove the battery from the computer for storage Before removing the battery for storage charge it to 60 70 Check stored batteries at least every 3 months and charge them to 60 70 Battery Disposal The product that you have purchase...

Page 8: ... adapter and initially set up as below Attach the AC DC adapter cord to the DC In jack on the left of the computer then plug the AC power cord into an outlet and connect the AC power cord to the AC DC adapter and leave it there for 6 seconds or longer Remove the adapter cord from the computer s DC In jack and then plug it back in again the battery will now be unlocked 6 Use one hand to raise the l...

Page 9: ...ving the 2nd Hard Disk from Caddy Bay 2 9 Removing the Optical CD DVD Device 2 10 Removing the System Memory RAM 2 11 Removing the Wireless LAN Module 2 13 Wireless LAN Combo 3G LTE Module Cables 2 14 Removing the 3G Module 2 15 Removing and Installing the M 2 SSD Module 2 16 Removing the CCD 2 18 Part Lists A 1 Part List Illustration Location A 2 Top A 3 Bottom A 4 LCD A 5 HDD A 6 HDD Caddy A 7 D...

Page 10: ...5V B 38 VCC_CORE VCCGT B 39 VCORE VCCGT Output Stage B 40 VCCSA B 41 VCCIO B 42 1 0DX_VCCSTG VCCSFR_OC 3 3VA B 43 Charger AC In B 44 Audio Board B 45 Click Board B 46 LID SW Board B 47 Caddy Bay Board B 48 Power Seq B 49 Updating the FLASH ROM BIOS C 1 Download the BIOS C 1 Unzip the downloaded files to a bootable CD DVD or USB Flash drive C 1 Set the computer to boot from the external drive C 1 U...

Page 11: ...l is shipped with the computer Operating systems e g Window 10 etc have their own manuals as do application softwares e g word processing and database programs If you have questions about those programs you should consult those manuals The N770WU series notebook is designed to be upgradeable See Disassembly on page 2 1 for a detailed description of the upgrade procedures for each specific componen...

Page 12: ...real memory operating frequency depends on the FSB of the processor LCD Options 15 6 39 62cm 16 9 HD 1366x768 FHD 1920x1080 Thickness 3 2mm Video Adapter Intel HD Graphics 620 for i3 7100U only Dynamic Frequency Intel Dynamic Video Memory Technology Microsoft DirectX 12 Compatible Intel UHD Graphics 620 for i7 8550U i5 8250U only Dynamic Frequency Intel Dynamic Video Memory Technology Microsoft Di...

Page 13: ...3 1 Gen 2 port the data transfer speed will be 10Gbps however when two devic es are plugged in to both USB 3 1 Gen 2 ports this bandwidth will be shared between the ports Communication Built In 10 100 1000Mb Base TX Ethernet LAN 1 0M HD PC Camera Module Factory Option 3G or 4G M 2 Module WLAN Bluetooth M 2 Modules Factory Option Intel Wireless AC 8265 Wireless LAN 802 11ac Bluetooth Factory Option...

Page 14: ...n 1 Introduction External Locator Top View with LCD Panel Open Figure 1 Top View 1 PC Camera 2 PC Camera LED When the PC camera is in use the LED will be illuminated in white 3 Built In Microphone 4 LCD 5 Power Button 6 Keyboard 7 Touchpad Buttons 5 2 4 7 1 3 6 3 ...

Page 15: ...xternal Locator Front Right Side Views Figure 2 Front View 1 LED Indicators 2 Multi in 1 Card Reader Figure 3 Right Side View 1 Headphone Out Jack 2 Microphone In Jack 3 USB 2 0 4 ODD Bay 5 Emergency Eject Hole 6 Security Lock Slot FRONT VIEW 1 2 RIGHT SIDE VIEW 1 2 3 4 5 6 ...

Page 16: ...ion External Locator Left Side Rear View Figure 4 Left Side View 1 DC In Jack 2 External Monitor Port 3 RJ 45 LAN Jack 4 Vent 5 HDMI Out Port 6 USB 3 0 3 1 Port 7 USB 3 0 USB 3 1 Gen 1 Type C Port LEFT SIDE VIEW 1 2 3 4 5 6 7 Figure 5 Rear View 1 Battery REAR VIEW 1 ...

Page 17: ...om View 1 7 1 Introduction External Locator Bottom View Figure 6 Bottom View 1 Battery 2 Vent 3 Speakers Overheating To prevent your com puter from overhea ting make sure no thing blocks any vent while the computer is in use 1 2 3 3 2 2 ...

Page 18: ...Introduction 1 8 Mainboard Overview Top Key Parts 1 Introduction Mainboard Overview Top Key Parts Figure 7 Mainboard Top Key Parts 2 3 1 ...

Page 19: ...4 Figure 8 Mainboard Bottom Key Parts 1 KBC ITE IT8587 2 CPU 3 Memory Slots DDR4 SO DIMM 4 CMOS Battery Introduction Mainboard Overview Bottom Key Parts 1 9 1 Introduction Mainboard Overview Bottom Key Parts ...

Page 20: ...rs 1 Introduction Mainboard Overview Top Connectors Figure 9 Mainboard Top Connectors 1 DC In Jack 2 External Monitor Port 3 RJ 45 LAN Jack 4 HDMI Out Port 5 USB Port 3 0 3 1 Port 6 USB Port 3 0 3 1 Type C Port 7 Keyboard Cable Connector 7 1 2 3 5 4 6 ...

Page 21: ... Overview Bottom Connectors Figure 10 Mainboard Bottom Connectors 1 3G LTE Card Connector 2 LID Connector 3 CCD Connector 4 ODD Connector 5 HDD Connector 6 Speaker Connector 7 Multi in 1 Card Reader 8 LCD Cable Connector 9 WLAN Connector 10 Battery Connector 1 2 4 6 7 3 5 8 9 6 10 ...

Page 22: ...Introduction 1 12 1 Introduction ...

Page 23: ...embly process easier each section may have a box in the page margin Information contained under the figure will give a synopsis of the sequence of procedures involved in the disassembly procedure A box with a lists the relevant parts you will have after the disassembly process is complete Note The parts listed will be for the dis assembly procedure listed ONLY and not any previous disassembly step...

Page 24: ...cing the con nection make sure the connector is oriented in the same way The pin1 side is usually not indicated Pressure sockets for multi wire connectors To release this connector type grasp it at its head and gently rock it from side to side as you pull it out Do not pull on the wires them selves When replacing the connection do not try to force it The sock et only fits one way Pressure sockets ...

Page 25: ...the computer When handling a printed circuit board do not use gloves or other materials which allow static electricity buildup We suggest that you use an anti static wrist strap instead 8 Beware of corrosion As you perform your job avoid touching any connector leads Even the cleanest hands produce oils which can attract corrosive elements 9 Keep your work environment clean Tobacco smoke dust or ot...

Page 26: ...5 2 Remove the keyboard page 2 6 3 Remove the HDD page 2 7 4 Remove the Optical Device page 2 10 To remove the System Memory 1 Remove the battery page 2 5 2 Remove the keyboard page 2 6 3 Remove the HDD page 2 7 4 Remove the system memory page 2 11 To remove the Wireless LAN Module 1 Remove the battery page 2 5 2 Remove the keyboard page 2 6 3 Remove the HDD page 2 7 4 Remove the WLAN page 2 13 To...

Page 27: ...a new battery by aligning the battery to the pins Figure 1d 6 Turn the battery in the direction of the arrow Figure 1e 7 Slide the latch in the direction of the arrow to lock it in place Figure 1f 1 2 6 3 4 6 3 5 6 6 3 7 8 3 Battery Figure 1 Battery Removal a Slide the latch and hold it in place b Turn the battery in the di rection of the arrow c Lift the battery out d Insert a new battery by alig...

Page 28: ...s shown Figure 2c 4 Carefully lift the keyboard up being careful not to bend the keyboard ribbon cable Disconnect the key board ribbon cable from the locking collar socket Figure 2d 5 Carefully lift up the keyboard off the computer Figure 2e 6 Reverse the process to install the keyboard do not forget to replace all the screws 1 2 3 4 5 6 7 8 6 b c a 8 1 6 7 8 6 2 5 3 d 4 4 Eject Stick 6 Keyboard 2...

Page 29: ...ou begin make sure You have backed up any data you want to keep from your old HDD You have all the CD ROMs and FDDs re quired to install your op erating system and programs If you have access to the internet download the latest application and hardware driver up dates for the operating system you plan to in stall Copy these to a re movable medium 1 Turn off the computer turn it over to remove the ...

Page 30: ...screws and the HDD bracket from the hard disk Figure 4h 10 Reverse the process to install a new hard disk do not forget to replace all the screws and bottom cover 19 20 21 22 23 24 25 26 e h 25 26 g 22 19 21 23 24 f 20 21 HDD Assembly 25 HDD Bracket 26 HDD 3 Screws Figure 4 HDD Assembly Removal cont d e Remove the screw f Slightly lift and pull the HDD assembly in the di rection of the arrow g Lif...

Page 31: ...Carefully push out the caddy bay out in the direction of the arrow Figure 5a 3 Remove screws will depends on the HDD type from the bottom of the caddy bay 4 Remove screws to release the hard disk assembly Figure 5b 5 Lift the hard disk assembly out of the caddy bay Figure 5c 6 Separate the hard disk and connector board Figure 5d 7 Reverse the process to install a new hard disk 8 Restart the comput...

Page 32: ...e out of the bay in the direction of the arrow Figure 6a 3 Carefully pry the bezel off the optical device at point Figure 6b 4 Separate the bezel and the optical device Figure 6d 5 Reverse the process to attach the front bezel with the new optical device at point Figure 6d 6 Insert the new device and carefully slide it into the computer the device only fits one way DO NOT FORCE IT The screw holes ...

Page 33: ...rting DDR4 Up to 2400 MHz The main memory can be expanded up to 32GB The total memory size is automatically detect ed by the POST routine once you turn on your computer Memory Upgrade Process 4 RAM Module 1 Turn off the computer turn it over to remove the battery page 2 5 and bottom cover page 2 7 2 The RAM modules will be visible at point on the mainboard Figure 7b 3 Gently pull the two release l...

Page 34: ...it the connectors firmly into the memory slot 7 The module will only fit one way as defined by its pin alignment Make sure the module is seated as far into the slot as it will go DO NOT FORCE IT it should fit without much pressure 8 Replace the bottom case and the screws see page 2 7 9 Restart the computer to allow the BIOS to register the new memory configuration as it starts up ...

Page 35: ...ard Figure 8a 3 Carefully disconnect the cables and then remove the screw Figure 8b 4 The Wireless LAN module Figure 8c will pop up and you can remove it from the computer 1 2 3 4 5 b c a 2 3 5 1 5 4 5 Wireless LAN Module 1 Screw Figure 8 WLAN Module Removal a Locate the WLAN b Disconnect the cable and remove the screw c The WLAN module will pop up and lift it out of the computer Note Make sure yo...

Page 36: ...ot labelled The cables covers each cable will have either a black or transparent cable cover are color coded for iden tification as outlined in the table below Cable 1 is usually connected to antenna 1 Main on the module and cable 2 to antenna 2 Aux Module Type Antenna Type Cable Color Cable Cover Type WLAN WLAN Bluetooth Combo WM 1 Black Transparent WM 2 Black White LTE Broadband LTE 1 Black Blac...

Page 37: ...le at point on the mainboard Figure 9a 3 Carefully disconnect the cables and then remove the screw from the module Figure 9b 4 The module will pop up Figure 9c 5 Lift the module up and off the computer Figure 9d 1 2 3 4 5 5 b c a 2 1 5 3 4 5 d 3 M2 SATA 1 Module 1 Screw Figure 9 3G Module Removal a Locate the module b Disconnect the cables and remove the screw c The module will pop up d Lift the m...

Page 38: ...e the battery page 2 5 and bottom cover page 2 7 2 The M 2 SSD module will be visible at point on the mainboard Figure 10a 3 Remove the screw Figure 10b 4 The M 2 SSD module Figure 10c will pop up and you can remove it from the computer 1 2 3 b c a 2 3 1 3 3 M2 SATA 1 Module 1 Screw Figure 10 M 2 SSD Module Removal a Locate the M 2 SSD b Remove the screw c The M 2 SSD module will pop up ...

Page 39: ...ure it in place Figure 11c 1 Figure 11 M 2 SSD Module Installation a Place the thermal pad b Insert the module c Tighten the screw 2 3 a 3 2 b c 1 Thermal Pad Be sure to place the thermal pad s adhesive side down onto the mainboard surface The thermal pad s thickness differ for different M 2 SSD module For module with chip use 2 5mm thick thermal pad For module without chip use 3 5mm thick thermal...

Page 40: ...frame of the LCD panel at the points as indicated by the arrows Figure 12a 4 Push the LCD front cover upwards before carefully lifting it up Figure 12b 5 Remove the LCD front cover Figure 12c 1 2 3 4 5 8 9 9 c b a 1 2 9 7 8 9 3 4 5 6 9 LCD Front Cover 2 Screws Figure 12 CCD Removal a Remove cover and screws Then run your fingers around the inner frame of the LCD panel at the points indicated by th...

Page 41: ... 2 19 2 Disassembly 6 Disconnect the cable 7 Remove the CCD module Figure 13f 8 Reverse the process to install a new CCD module 6 7 e d 7 6 7 CCD Module Figure 13 CCD Removal cont d d Disconnect the cable e Remove the CCD mod ule ...

Page 42: ...Disassembly 2 20 2 Disassembly ...

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