1. Manuals
  2. Brands
  3. EUROCOM Manuals
  4. Desktop
  5. T890M
  6. Service manual

EUROCOM T890M Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the T890M and is the answer not in the manual?

Questions and answers

Related Manuals for EUROCOM T890M

Summary of Contents for EUROCOM T890M

  • Page 3 Preface Computer T890M Service Manual...
  • Page 4 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.
  • Page 5 Preface About this Manual 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 T890M series computer.
  • Page 6 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.
  • Page 7 Preface Instructions for Care and Operation The computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions: 1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged. •...
  • Page 8 Preface Power Safety The computer has specific power requirements: • Only use a power adapter approved for use with this computer. • Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are unsure of ...

  • Page 9: Battery Guidelines

    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.
  • Page 10 Preface Related Documents You may also need to consult the following manual for additional information: User’s Manual on CD This describes the computer’s features and the procedures for operating the computer and its ROM-based setup program. It also describes the installation and operation of the utility programs provided with the computer. VIII...

  • Page 11: Table Of Contents

    Preface Contents Introduction ..........1-1 Schematic Diagrams......... B-1 Overview ..................1-1 System Block Diagram ..............B-2 System Specifications ..............1-2 Clock Generator ................B-3 External Locator - LCD Panel View ..........1-4 Silverthorne, Thermal IC 1/2 ............B-4 External Locator - Top & Right side Views ........1-5 Silverthorne 2/2 ................B-5 External Locator - Left Side &...
  • Page 12 Preface Fingerprint Board ................. B-31 USB Board ................... B-32...

  • Page 13: Introduction

    Introduction Chapter 1: Introduction Overview This manual covers the information you need to service or upgrade the T890M series computer. Information about op- erating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about drivers (e.g. VGA &...

  • Page 14: System Specifications

    Introduction System Specifications BIOS Card Reader/ExpressCard Processor Options One 8Mb SPI Flash ROM Intel® US15W Integrated 5-in-1 Card Reader Intel® Atom Processor: (SD/ Mini SD/ SDIO/ MMC/ RS MMC) Note: Phoenix™ BIOS 512K On-die L2 Cache, 533MHz FSB, FC- Mini SD/ SDIO/ RS MMC Cards require a PC BGA8 Package Drop Protection adapter...
  • Page 15 Introduction Operating System Factory Options Windows® Vista Home Basic 32bit (with GPS Module Service Pack 2) Bluetooth 2.1 + EDR (Enhanced Data Rate) Module Windows® XP (with Service Pack 3) HF RFID Reader Environmental Spec 8.9” WSVGA (1024 * 600) TFT LED Backlight LCD with Touch Panel (Stylus Pen &...

  • Page 16: External Locator - Lcd Panel View

    Introduction External Locator - LCD Panel View Figure 1 LCD Panel View 1. Built-In Microphone 2. LED Indicators 3. LCD Touch Panel Screen 4. Speakers 5. Fingerprint Reader 6. 5 Function Buttons 7. Protective Surround 1 - 4 External Locator - LCD Panel View...

  • Page 17: External Locator - Top & Right Side Views

    Introduction External Locator - Top & Right side Views Figure 2 Front Views 1. Strap Holders (for Carrying Strap) 2. Power Button 3. RFID (Radio Frequency Identification) Reader (Factory Option) 4. RJ-45 LAN Jack 5. 1 * USB 2.0 Ports Figure 3 Right Side Views 1.

  • Page 18: External Locator - Left Side & Bottom View

    Introduction External Locator - Left Side & Bottom View Figure 4 Left Side View 1. Security Lock Slot 2. Stylus Pen & Holder 3. DC-In Jack 4. 1 * USB 2.0 Port Figure 5 Bottom View 1 - 6 External Locator - Left Side & Bottom View...

  • Page 19: External Locator - Rear View

    Introduction External Locator - Rear View Figure 6 Rear View Built-In PC Camera GPS Active Aerial Socket (for optional Active Aerial) Protective Surround Stylus Pen & Holder Battery Gauge Battery  Overheating To prevent your com- puter from overheating make sure nothing blocks the vent/fan in-...

  • Page 20: Mainboard Overview - Top (Key Parts)

    Introduction Mainboard Overview - Top (Key Parts) Figure 7 Mainboard Top Key Parts 1. Intel Atom CPU 2. Memory Slots DDR2 SO-DIMM 3. System Controller 4. Super I/O 5. Transformer 6. Card Reader Socket 7. Mini-Card Connector (WLAN Module) 1 - 8 Mainboard Overview - Top (Key Parts)

  • Page 21: Mainboard Overview - Bottom (Key Parts)

    Introduction Mainboard Overview - Bottom (Key Parts) Figure 8 Mainboard Bottom Key Parts 1. ExpressCard Connector 2. KBC ITE IT8513E Mainboard Overview - Bottom (Key Parts) 1 - 9...

  • Page 22: Mainboard Overview - Top (Connectors)

    Introduction Mainboard Overview - Top (Connectors) Figure 9 Mainboard Top Connectors 1. Second Bridge Battery Cable Connector 2. USB Cable Connector 3. CCD Cable Connector 4. GPS Cable Connector 5. Bluetooth Cable Connector 6. CMOS Battery Cable Connector 7. Microphone Cable Connector 8.

  • Page 23: Mainboard Overview - Bottom (Connectors)

    Introduction Mainboard Overview - Bottom (Connectors) Figure 10 Mainboard Bottom Connectors 1. HDD Connector 2. Function Button Cable Connector 3. Docking Cable Connector Mainboard Overview - Bottom (Connectors) 1 - 11...
  • Page 24 Introduction 1 - 12...

  • Page 25: Disassembly

    Disassembly Chapter 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling the T890M series computer’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. Procedures such as upgrading/replacing the RAM, optical device and hard disk are included in the User’s Manual but are repeated here for your convenience.

  • Page 26: Maintenance Tools

    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 computer: • M3 Philips-head screwdriver • M2.5 Philips-head screwdriver (magnetized) •...

  • Page 27: Maintenance Precautions

    Disassembly Maintenance Precautions  The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a re- moval and/or replacement job, take the following precautions: Power Safety Warning 1. Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other Before you undertake components could be damaged.

  • Page 28: Disassembly Steps

    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: 1. Remove the battery page 2 - 5 To remove the HDD: 1.

  • Page 29: Removing The Battery

    Disassembly Removing the Battery 1. Turn the computer off, and turn it over. Figure 1 2. Loosen the screws Battery Removal 3. Remove the battery bay cover 4. Lift the battery in the direction of the arrow out of the computer. a.

  • Page 30: Removing The Hard Disk Drive

    Disassembly Removing the Hard Disk Drive The hard disk drive can be taken out to accommodate other 2.5" serial (SATA) hard disk drives with a height of 9.5mm Figure 2 (h). Follow your operating system’s installation instructions, and install all necessary drivers and utilities (as outlined in HDD Assembly Chapter 4 of the User’s Manual) when setting up a new hard disk.
  • Page 31 Disassembly 4. Carefully lift the bottom case as indicated by the arrow Figure 3 5. Slide the hard disk assembly in the direction of the arrow HDD Assembly 6. Lift the hard disk off the computer. Removal (cont’d.) d. Lift the bottom case off the computer.

  • Page 32: Removing The System Memory (Ram)

    Disassembly Removing the System Memory (RAM) Figure 4 RAM Module The computer has one memory sockets for 200 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting Removal DDR2 533MHz. The main memory can be expanded up to 2GB. The SO-DIMM modules supported are 1024MB, and 2048MB and DDRII Modules.

  • Page 33: Removing The Wireless Lan Module

    Disassembly Removing the Wireless LAN Module Figure 5 Wireless LAN 1. Turn off the computer, remove the battery (page 2 - 5) and harddisk (page 2 - Module Removal 2. Carefully disconnect cables , then remove screw from the module socket. 3.

  • Page 34: Removing The Bluetooth Module

    Disassembly Removing the Bluetooth Module Figure 6 Bluetooth Module 1. Turn off the computer, remove the battery (page 2 - 5) and harddisk (page 2 - Removal 2. Remove the screw and disconnect the cable & connector from the module. 3.

  • Page 35: Part Lists

    Part Lists Appendix A: Part Lists This appendix breaks down the T890M series computer’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.

  • Page 36: Part List Illustration Location

    Part Lists Part List Illustration Location The following table indicates where to find the appropriate part list illustration. Table A- 1 Part List Illustration Location Parts MB with RFID page A - 3 Back Cover page A - 4 LCD with Barcode Reader page A - 5 LCD without Barcode Reader page A - 6...

  • Page 37: Mb With Rfid

    Part Lists MB with RFID Figure A - 1 MB with RFID 無鉛 無鉛 (華力)無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 (華力)無鉛 無鉛 藍天7 互億 無鉛 海華 無鉛 無鉛 鼎緯 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛...

  • Page 38: Back Cover

    Part Lists Back Cover Figure A - 2 Back Cover 銘板 無鉛 銘板 無鉛 銘板 無鉛 無鉛 無鉛 無鉛 無鉛 (華力)無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 (華力)無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 無鉛 (設變肉厚) 無鉛 無鉛 無鉛 無鉛...

  • Page 39: Lcd With Barcode Reader

    Part Lists LCD with Barcode Reader Figure A - 3 保護膜 無鉛 無鉛 LCD with Barcode 無鉛 精乘 無鉛 Reader 無鉛 無鉛 無鉛 無鉛 無鉛 精乘 無鉛 精乘 無鉛 (紘立) 無鉛 無鉛 無鉛 無鉛 無鉛 (華力)無鉛 無鉛 無鉛 無鉛 無鉛 無鉛...

  • Page 40: Lcd Without Barcode Reader

    Part Lists LCD without Barcode Reader 保護膜 無鉛 無鉛 Figure A - 4 無鉛 精乘 無鉛 無鉛 LCD without 無鉛 無鉛 Barcode Reader ～ 無鉛 無鉛 精乘 無鉛 精乘 無鉛 (紘立)無鉛 無鉛 無鉛 無鉛 無鉛 (華力)無鉛 無鉛 無鉛 無鉛 無鉛 無鉛...
  • Page 41 Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the T890M computer’s PCB’s. The following table indicates where to find the ap- propriate schematic diagram. Diagram - Page Diagram - Page Diagram - Page Table B - 1 Schematic System Block Diagram - Page B - 2 CH7317 SDVO to CRT - Page B - 13...

  • Page 42: Schematic Diagrams

    Schematic Diagrams System Block Diagram Sheet 1 of 31 System Block Diagram B - 2 System Block Diagram...

  • Page 43: Clock Generator

    Schematic Diagrams Clock Generator Sheet 2 of 31 ? ? ? P UL L HI GH , A ND 0 ? ? CLOCK GENERATOR D02 1022 R 2 4 3 *1 0 K _ 0 4 R 2 40 * 10 K _ 0 4 Clock Generator 1 .

  • Page 44: Silverthorne, Thermal

    Schematic Diagrams Silverthorne, Thermal IC 1/2 H _ D # [ 6 3: 0 ] H _ D # [ 6 3: 0 ] U 2 8B H _A # [ 3 1 : 3] U 2 8A H _D # 0 Y 2 7 A E 8 H _ D #3 2...

  • Page 45: Silverthorne 2/2

    Schematic Diagrams Silverthorne 2/2 1 . 0 5 V S 1 . 0 5 V S _ C 6 V C O R E U 2 8 D U 2 8 C Y 2 9 V S S 1 / N C T F V S S 16 2 A 2 8 Y 2 5...

  • Page 46: Poulsbo 1/6 Host

    Schematic Diagrams Poulsbo 1/6 Host H _ D # [ 6 3 : 0 ] H _ A # [ 3 1 : 3 ] U 2 3 A H _ D #0 H _ A # 3 H _ D 0 # H _ A 3 # H _ D #1 H _ A # 4...

  • Page 47: Poulsbo 2/6 Vga, Lvds, Rtc

    Schematic Diagrams Poulsbo 2/6 VGA, LVDS, RTC 3. 3 V S U 23 B K 3 8 B K 5 0 19 , 2 3 L P C _ A D 0 L P C _ A D 0 R E S E R V E D 8 J 3 9 P M_ E X T T S # R 29 8...

  • Page 48: Poulsbo 3/6 Usb, Pata/Ide

    Schematic Diagrams Poulsbo 3/6 USB, PATA/IDE U 23 C A E 4 7 U S B _ P N 0 U S B _D N 0 A E 4 9 U S B _ P P 0 U S B _D P 0 A D 4 8 1.

  • Page 49: Poulsbo 4/6 Ddr2

    Schematic Diagrams Poulsbo 4/6 DDR2 U23D M _A_DQ[ 63:0] M_A_DQ0 BG49 BC27 M_A_BS0 M_A_DQ1 S M_DQ0 S M_ B S0 BG47 BE25 S M_DQ1 S M_ B S1 M_A_BS1 M_A_DQ2 B E45 BA35 M_A_BS2 S M_DQ2 S M_ B S2 M_A_DQ3 BC43 S M_DQ3...

  • Page 50: Poulsbo 5/6 Power

    Schematic Diagrams Poulsbo 5/6 Power 1 . 05 V S A ll de cou pl ing s hou ld be pl ac ed on th e b ac ksi de C or e D eco upl in g 18 00 mA 1 .

  • Page 51: Poulsbo 6/6 Vss

    Schematic Diagrams Poulsbo 6/6 VSS U 23F B H30 BB 24 V S S _1 V SS _76 B H28 BB 22 B H26 V S S _2 V SS _77 BA 7 U23G V S S _3 V SS _84 B H24 BA 5 BH 34...

  • Page 52: Ddr2 So-Dimm

    Schematic Diagrams DDR2 SO-DIMM D 02 1022 0.9V S R388 10K _1% _04 R387 10K _1% _04 M _A _A1 1 R 44 121_1% _04 M _OD T 0 M _CK E 1 R109 * 56_1% _04 R 40 121_1% _04 M _OD T 1 R110 * 56_1% _04...

  • Page 53: Ch7317 Sdvo To Crt

    Schematic Diagrams CH7317 SDVO to CRT SD V OB_RED+ SD V OB_RED- SD V OB_GREEN+ SD V OB_GREEN- SD V OB_BLUE+ SD V OB_BLUE- Z1202 SD V OB_CLK+ SD V OB_CLK- HC B1005K F-121T 20 CH_A VDD R2 90 2 .5VS 1 0K_0 4 C348 C353...

  • Page 54: Lvds Conn, Lcd Power, Crt

    Schematic Diagrams LVDS Conn, LCD Power, CRT CRT PORT 5V S LVDS CONN ? : D1 4,D15,D 16? ? ? ? ? ? ? ? CHI P_SET ? ? ? ? ? ,? :Intel? 945GM? 2.5VS 3. 3 VS R 3 1 8 P LV D D *2 0m i l _s h ort 08 29...

  • Page 55: Sdio, Mini Card, B/T, Ccdi

    Schematic Diagrams SDIO, Mini Card, B/T, CCDI MINI CARD Bluetooth 3 . 3 V W L A N 1 . 5 V S 1 . 5 V S 3 V _B T J _ MI N I 1 20 mil 3 .

  • Page 56: New Card Socket

    Schematic Diagrams New Card Socket NEW CARD 3. 3V S 10m il C1 46, C147: >>>Near to J_NEW1 for Nvidia plat form C461 .1U_10V_X 7R_04 >>>Near to S.B. for Intel platfor m D02 1107 12, 14,16,17 ,19,23 P CI R ST# 74A HC1G08GW 3.3V J_NEW 1...

  • Page 57: Jmh 330 Sata

    Schematic Diagrams JMH 330 SATA Re serv e fo r me asure SAT A Bypa ss C AP m ust plac e clo se t o po wer pins Ey e Pa tter n. P D D [ 15 : 0 ] 7 P IN# 4 SATA HDD 1 CL OS E J _H DD1 CN N...

  • Page 58: Pci-E Lan Rtl8102E

    Schematic Diagrams PCI-E LAN RTL8102E 3 . 3 V L A N V D D 3 R 2 1 9 4 0 mil 4 0 mil *3 2 m i l _ s h ort C 2 4 0 C 3 0 2 C 3 2 1 C 3 2 2 .

  • Page 59: Audio Codec Alc269 Qfn

    Schematic Diagrams Audio Codec ALC269 QFN CODEC ALC269 L 19 PI N2 5,P IN 38 ? 1? 1 0u F/ .1 uF H C B 1 0 0 5K F -1 2 1T 2 0 R 1 56 *1 0 m i l _ s h o r t 3.

  • Page 60: Touch Panel Control

    Schematic Diagrams Touch Panel Control COMPORT IT8709E D02 112 6 D 02 1126 3 . 3V S 3. 3V S 3. 3 V S OS C 1 R 4 1 7 R 4 1 6 Note for pi n 2: OU T GN D If needs to support power on from IT8305...

  • Page 61: Usb2.0, Gsensor, Gps, Rfid

    Schematic Diagrams USB2.0, GSensor, GPS, RFID 1.5 A USB 2.0 G Sensor V C C U S B U 1 4 C 2 22 C 2 2 3 G N D V OU T 10 U _ 6 . 3 V _ X5 R _ 0 6 .

  • Page 62: To Sw, Barcode Conn

    Schematic Diagrams TO SW, Barcode Conn TO SWITCH BOARD BARCODE READ CONNECTOR B A R_3 . 3 V 3.3V S J_FPTTP1 J_M F B1 BA R _CN1 BAR_CN1 D02 121 0 UA RT _T X D UA RT _T X D 20,23 RIGH T K EY # 23 UA RT _R X D U A RT _R X D 20,23...

  • Page 63: Hotkey Board

    Schematic Diagrams Hotkey Board SECOND BATTERY ENABLED KEY BATT/E mail CHARGE FULL D L E D GREE N SECOND BAT KEY R 1 8 5 2 2 0 _ 1 % _0 4 Z 2 30 1 V D D 3 L E D _B A T _ F U L L # 2 3 Z 2 30 2 DEF AULT...

  • Page 64: Kbc-Ite It8513E & Bios

    Schematic Diagrams KBC-ITE IT8513E & BIOS K B C _ A V D D L 41 11/ 20 H C B 1 00 5 K F -1 2 1T 2 0 R 3 13 * 10 K _ 0 4 W D T _E N V D D 3 V D D 3...

  • Page 65: Vdd5, Vdd3

    Schematic Diagrams VDD5, VDD3 L D O5 V V I N 1 LD O5 V P C 11 5 P C 1 1 4 P R 5 1 P C 1 12 *1 M_ 1% _ 04 1U _6 . 3 V _X 5 R _ 0 4 4 .

  • Page 66: System Vs Power

    Schematic Diagrams System VS Power 1.8VS S Y S 1 5V V D D 5 S Y S 1 5 V V D D 5 5 V S S Y S 1 5 V 1 . 8 V 1. 8V S P L 1 * H C B 3 2 1 6 K -8 0 0 T 30 Power Plane...

  • Page 67: Vccnb, 1.5V, 1.05Vs, M_Btn

    Schematic Diagrams VCCNB, 1.5V, 1.05VS, M_BTN P C145 P C137 P R54 E N_1 . 0 5V P D6 * 100K _1% _04 P Q24 P C1 17 F M 054 0- N S U SB *2N 7002W PR 114 18K _1% _04 25,27 SU S B...

  • Page 68: 1.8V, 0.9Vs

    Schematic Diagrams 1.8V, 0.9VS V IN 3.3V P R86 P R87 P R143 P D7 100K _04 1M _ 1% _04 10_06 V 1.8 F M 05 40- N P U6 P R69 10_06 Z2801 1. 8 VOK V DDQ S P GD PC 61 PC 76...

  • Page 69: Vcore

    Schematic Diagrams VCORE V I N P C 5 2 P C 5 1 P C 5 0 V C O R E P C 67 P C 12 3 P D 9 C 1 82 C 1 6 5 C 1 78 C 1 7 5 P R 5 3...

  • Page 70: Ac-In, Charger

    Schematic Diagrams AC-In, Charger V _B A T _B Z 30 48 AC IN & CH ARGE R BAT_A Charge Curren t 3.2A D0 2 1 12 2 P R 9 0 _04 BAT_B Charge Curren t 0.2A 2 N D _B A T _D I C H A R G E P Q 4 3 Z 30 28 2nd_BA T_Discharge...

  • Page 71: Fingerprint Board

    Schematic Diagrams Fingerprint Board F I N G E R B O A R D F O R M 7 4 TC S4B Un stu ff F C C 1 F C R 16 F C C T 3 . 3 V _F TC S4C 1U _10 V_ 06 F U 2...

  • Page 72: Usb Board

    Schematic Diagrams USB Board DC_L1 HCB3216KF-800T30_12 0910 DC_VCC USB DCVCC_USB Sta nda rd USB DC _USB1 DC_L2 *WCM2012 F2S-900T04 DC _U SB_PN5 DC_USB_PN5_R DATA_L DC _U SB_PP5 DC_USB_PP5_R DATA_H GN D DC_R2 0_04 DC_C4 DC_C6 DC_R1 0_04 100U_6.3V_B2 .1U_10V_X7R_04 SK10713 Sheet 31 of 31 USB_GND U SB_GND...

Table of Contents