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Preface Notebook Computer NJ70PU Service Manual...
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Preface Notice The company reserves the right to revise this publication or to change its contents without notice. Information contained herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven- dor.
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This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and inspection of personal computers. It is organized to allow you to look up basic information for servicing and/or upgrading components of the NJ70PU se- ries notebook PC.
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Preface IMPORTANT SAFETY INSTRUCTIONS Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per- sons when using any electrical equipment: 1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement or near a swimming pool.
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Preface Instructions for Care and Operation The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions: Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged. Do not expose the computer Do not place it on an unstable Do not place anything heavy...
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Preface Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag- netic fields. These can hinder proper performance and damage your data. Take care when using peripheral devices. Use only approved brands of Unplug the power cord before peripherals.
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Preface Battery Precautions • Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer. • Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.
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Preface Related Documents You may also need to consult the following manual for additional information: User’s Manual on CD/DVD This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro- gram. It also describes the installation and operation of the utility programs provided with the notebook PC. System Startup 1.
Preface Contents Introduction ..........1-1 Top ....................A-3 Bottom ................... A-4 Overview ..................1-1 LCD ....................A-5 Specifications ..................1-2 DVD ....................A-6 External Locator - Top View with LCD Panel Open ......1-4 HDD ....................A-7 External Locator - Front & Right Side Views .........1-5 MB ....................
Chapter 1: Introduction Overview This manual covers the information you need to service or upgrade the NJ70PU series notebook computer. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about dri- vers (e.g.
Introduction External Locator - Top View with LCD Panel Open Figure 1 Top View 1. Webcam 2. *Camera LED *When the PC camera is in use, the LED will be illuminated in white. 3. Built-In Array Microphone 4. Display 5. Power Button 6.
Introduction External Locator - Front & Right Side Views Figure 2 Front View 1. LED Indicators 2. Multi-in-1 Card Reader FRONT VIEW Figure 3 Right Side View 1. 2-In-1 Audio Jack (Headphone and Microphone) 2. Microphone-In Jack RIGHT SIDE VIEW 3.
Introduction External Locator - Left Side & Rear View Figure 4 Left Side View 1. DC-In Jack 2. RJ-45 LAN Jack 3. External Monitor LEFT SIDE VIEW Port 4. USB 3.2 Gen 2 Type-C Port with DisplayPort and Power Delivery 5.
Introduction External Locator - Bottom View Figure 6 Bottom View 1. Battery 2. Vent 3. Speakers 4. Multi-in-1 Card Reader Overheating To prevent your com- puter from overhea- ting, make sure no- thing blocks any vent while the computer is in use.
Introduction Mainboard Overview - Top (Connectors) Figure 9 Mainboard Top Connectors 1. DC-In Jack 2. RJ-45 LAN Jack 3. External Monitor Port 4. USB 3.2 Gen 2 Type-C Port with Power Delivery 5. HDMI-Out Port 6. USB 3.2 Gen 1 Type-A Port (Factory Option) Powered USB 3.2...
Chapter 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling the NJ70PU series notebook’s parts and subsystems. When it comes to reassembly, reverse the procedures (unless otherwise indicated). We suggest you completely review any procedure before you take the computer apart.
Disassembly NOTE: All disassembly procedures assume that the system is turned OFF, and disconnected from any power supply (the battery is removed too). Maintenance Tools The following tools are recommended when working on the notebook PC: • M3 Philips-head screwdriver •...
Disassembly Maintenance Precautions The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a removal and/or replacement job, take the following precautions: Power Safety Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other components Warning could be damaged.
Disassembly Disassembly Steps The following table lists the disassembly steps, and on which page to find the related information. PLEASE PERFORM THE DISASSEMBLY STEPS IN THE ORDER INDICATED. To remove the Battery: To remove the 4G Module: 1. Remove the battery page 2 - 5 1.
Disassembly Removing the Battery Figure 1 Battery Removal 1. Turn off the computer, turn it over. 2. Slide the latch in the direction of the arrow (Figure 1a a. Slide the latch and hold it 3. Slide the latch in the direction of the arrow, and hold it in place (Figure 1a in place.
Disassembly Removing the Hard Disk Drive Figure 2 The hard disk drive can be taken out to accommodate other 2.5" serial (SATA) hard disk drives with a height of 7.0mm HDD Assembly (h). Follow your operating system’s installation instructions, and install all necessary drivers and utilities (as outlined in Removal Chapter 4 of the User’s Manual) when setting up a new hard disk.
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Disassembly 5. Remove screws from the HDD assembly (Figure 3d). Figure 3 6. Slightly lift and pull the hard disk assembly up using the tab (Figure 3e HDD Assembly 7. Lift the hard disk assembly out of the bay (Figure 3f Removal (cont’d.) 8.
Disassembly Removing the System Memory (RAM) Figure 4 RAM Module The computer has two memory sockets for 260 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting Removal DDR4 3200MHz. The main memory can be expanded up to 64GB. The total memory size is automatically detected by the POST routine once you turn on your computer.
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Disassembly 5. Pull the latches to release the second module if necessary. 6. Insert a new module holding it at about a 30° angle and fit 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.
Disassembly Removing the Keyboard Figure 5 1. Turn off the computer, turn it over to remove the battery (page 2 - 10) and component cover (page 2 - Keyboard Removal 2. Locate the release points from the open bottom case (Figure 5a).
Disassembly Removing the Optical (CD/DVD) Device Figure 6 Optical Device 1. Turn off the computer, remove the battery (page 2 - 5), and bottom case (page 2 - Removal 2. Remove the screw and push the optical device out of the bay in the direction of the arrow (Figure 6a 3.
Disassembly Removing the Wireless LAN Module Figure 7 Wireless LAN 1. Turn off the computer, turn it over to remove the keyboard (page 2 - 10) and battery (page 2 - Module Removal 2. The Wireless LAN module will be visible at point on the mainboard (Figure 7a).
Disassembly Wireless LAN, and Combo Module Cables Note that the cables for connecting to the antennae on WLAN, WLAN & Bluetooth Combo modules are not labelled. The cables/covers (each cable will have either a black or transparent cable cover) are color coded for identification as outlined in the table below.
Disassembly Removing the 4G Module Figure 8 4G Module Removal 1. Turn off the computer, turn it over to remove the keyboard (page 2 - 10) and battery (page 2 - 2. The module will be visible at point on the mainboard (Figure 7a).
Disassembly Removing the M.2 SSD Module Figure 9 M.2 SSD Module 1. Turn off the computer, turn it over to remove the keyboard (page 2 - 10) and battery (page 2 - Removal 2. The M.2 SSD module will be visible at point on the mainboard (Figure 9a).
Disassembly Removing the CCD Figure 10 CCD Removal 1. Turn off the computer, turn it over to remove the keyboard (page 2 - 10) and battery (page 2 - 2. Run your fingers around the inner frame of the LCD panel at the points as indicated by the arrows (Figure a.
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Disassembly 4. Disconnect the cable (Figure 11f). Figure 11 5. Remove the CCD module (Figure 11g). CCD Removal 6. Reverse the process to install a new CCD module. (cont’d.) c. Disconnect the cable. d. Remove the CCD mod- ule. 6.
Appendix A: Part Lists This appendix breaks down the NJ70PU series notebook’s construction into a series of illustrations. The component part numbers are indicated in the tables opposite the drawings. Note: This section indicates the manufacturer’s part numbers. Your organization may use a different system, so be sure to cross-check any relevant documentation.
Part List Illustration Location The following table indicates where to find the appropriate part list illustration. Table A - 1 Part List Illustration Part Location page A - 3 page A - 4 Bottom page A - 5 page A - 6 page A - 7 page A - 8 A - 2...
Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the NJ70PU notebook’s PCB’s. The following table indicates where to find the appropriate schematic diagram. Diagram - Page Diagram - Page Diagram - Page Table B - 1...
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Schematic Diagrams System Block Diagram NJ50PU Alder Lake P System Block Diagram NJ50/70 AUDIO BOARD VDD3,VDD5 SHEET 33 6-71-NJ5P8-D01 SHEET 43.44 DD_ON#, SUSB, 5V, 5VS, 1.8V NJ50 CLICK BOARD DDR4 IT6516 3.3V, 3.3VS, 3.3VA TCP0 6-71-NJ5P2-D01 SHEET 45 SHEET 34 SO-DIMM_A_0 DP TO VGA <10"...
Schematic Diagrams TPM, PW Button, LID SW, LED TPM_3.3V POWER BUTTON / LED GPIO H: W / TPM ( R461) 10K_04 L: W/O TPM ( R462) 3.3VS POWER TPM_DET 11 SWITCH R475 100K_04 VDD3 TPM_3.3V W/O TPM D02,Hank,Power LED 330_04 POWER ON LED 3.3VA *0_04...
Schematic Diagrams USB, HDD, ODD USB 3.0 port (CHARGER) Smart CDP pin8 pin4 Function C509 22u_6.3V_X5R_06 USB3.0 Max Trace length DCP autodetect with Follow Design Guide C510 22u_6.3V_X5R_06 mouse/keyboard wake up USBVCC_CH S0 Charging with SDP CLOSE TO CONNECTOR Julie SWAP J_USB3_1 USB3_TXP1_USBA USB3_1TXPC...
Schematic Diagrams LAN I219V GIGA LAN (INTEL LAN I219) LAN i219 VDD3 The 10Kohm pull-up resistor of CLK_REQ_N is required to either 3.3V Suspend (5, 6, 7) or Core (2) rail, depending on the power well of PCH's input PCIECLKRQx# buffer.
Schematic Diagrams Power Seq. NJ50PU Power On Sequence G3 to S0 VDD3 AC IN DSW_PWROK 75.8ms Status SLP_SUS#_R 95ms PWR_SW# Power on Status VA_EC_EN 421ms 574us 3.3VA 1.8VA 1.5ms VCCIN_AUX 2.5ms Sheet 48 of 48 VCC_VNNEXT_1P05 2.5ms CPU FIVR Power Seq. VCC_V1P05EXT 30ms DD_ON...
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