Service manual

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L295U / L297U

Summary of content (86 pages)

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L295U / L297U
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Preface LCD Computer L295U/L297U Series Service Manual Preface I
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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 vendor. They assume no responsibility or liability for any errors or inaccuracies that may appear in this publication nor are they in anyway responsible for any loss or damage resulting from the use (or misuse) of this publication.
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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 computer. The following information is included: Chapter 1, Introduction, provides general information about the location of system elements and their specifications.
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Preface Related Documents You may also need to consult the following manual for additional information: Preface 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.
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Preface Contents Introduction ..............................................1-1 Disassembly ...............................................2-1 Overview .........................................................................................2-1 Maintenance Tools ..........................................................................2-2 Connections .....................................................................................2-2 Maintenance Precautions ............................................
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Preface Preface MCH AGP ...................................................................................... B-8 MCH Memory ................................................................................ B-9 MCH Memory Termination ......................................................... B-10 DDR RIMM ................................................................................. B-11 DVO Chrontel CH7107A ............................................................. B-12 LCD Connector ................
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Introduction 1: Introduction Overview This manual covers the information you need to service or upgrade the L295U/L297U LCD computer. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about drivers (e.g. VGA & audio) is also found in User’s Manual. That manual is shipped with the computer. Operating systems (e.g. DOS, Windows 9x, Windows NT 4.0, Windows 2000, Windows XP, OS/2 Warp, UNIX, etc.
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Introduction Model Differences The differences between the model types are indicated in the table and pictures below. Table 1 - 1 Model Specifications Feature/Model LCD Size CD Device Location 1.
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Introduction System Specifications L295U/L297U Table 1 - 2 Feature Processor Types Specification - L295U Specification - L297U Intel Pentium® 4 with HT Technology (520/ 530/ 540) FC-PGA2 Package (478-pin) (90nm) - 90 Nanometer Process Technology, 1MB L2 Cache & 800MHz Front Side Bus 2.8/ 3.0/ 3.2/ GHz L295U/L297U System Specifications Intel Pentium® 4 with HT Technology FC-PGA2 Package (478-pin) (130nm) - 130 Nanometer Process Technology, 512KB L2 Cache & 800MHz Front Side Bus 2.8/ 3.0/ 3.
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Introduction Feature Video Specification - L295U Specification - L297U 865-GV Integrated Chipset Video RAM - Shared Memory Architecture (SMA) Supporting DDR Video Shared Memory up to 64MB 2D Hardware Accelerator (for block level transfers of data integrating an extensive set of instructions for 3D) 1.Introduction Video Memory The system allocates or “shares” a portion of system memory for video use.
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Introduction Feature Storage Specification - L295U Specification - L297U One 3.5", 1.44MB 3-Mode Floppy Disk Drive (Exchangeable With 6-in-1 Card Reader Module or Video-Capture Module) One 3.5", 25.4mm Height Hard Disk Drive (Ultra-66/100 I/F Support) One Optical Device Bay for the Optional 12.
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Introduction Figure 1 - 1 External Locator - Front View Front View 1.Introduction 1. LCD Panel 2. Speakers 3. LED Activity indicators 4. Power Button 5.
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Introduction External Location - Left & Right Side Views Figure 1 - 2 Left & Right Views Left L295U Series Right L297U Series 1 1 4 4 5 3 5 6 7 *Floppy Disk Drive & Optional Modules 2 2 8 9 10 If you have either the 6-in-1 Card Reader, or Video Capture Card options, then the optional module will replace the floppy disk drive module in the slot at point 1 . External Location - Left & Right Side Views 1 - 7 1.Introduction 1. Floppy Disk Drive* 2. Hard Disk Drive (HDD) Bay 3.
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Introduction Figure 1 - 3 External Locator - Rear View 1.Introduction Rear View 1. Carrying Handle 2. Headphone-Out Jack 3. Line-In Jack 4. Microphone-In Jack 5. RJ-45 LAN Jack 6. RJ-11 Phone Jack 7. Dual USB Ports 8. Unpowered IEEE 1394 Port 9. Blocked - IEEE 1394 Port (no option installed) 10. PS/2 Mouse & Keyboard Ports 11. Printer/Parallel Port 12. Serial Port 13. External Monitor (CRT) Port 14.
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Introduction Mainboard Overview - Top Figure 1 - 4 Mainboard Overview - Top Key Parts Key Parts 3 2 1 8 9 7 5 6 Mainboard Overview - Top 1 - 9 1.Introduction 4 1. CPU Socket (no CPU Installed) 2. Intel SpringdaleG (North Bridge) 3. RAM Sockets 4. Mini PCI Socket for WLAN or IEEE1394 5. FLASH BIOS 6. CMOS Battery 7. Realtek RTL8100BL 8. Cardbus PCI1520 9.
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Introduction Figure 1 - 5 1.Introduction Mainboard Overview - Bottom Key Parts Mainboard Overview - Bottom Key Parts 1. Chrontel CH7017A 2. Clock Generator 3. Intel ICH-5 460 mBGA (South Bridge) 4. SUPER I/O Winbond W83627HF 5.
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Introduction Mainboard Overview - Top Figure 1 - 6 Mainboard Top Cable Connectors & Switches Cable Connectors and Switches 5 2 1 3 6 4 9 15 10 11 12 7 8 16 13 14 Mainboard Overview - Top 1 - 11 1.Introduction 1. Floppy Disk Drive (CN5) 2. Card Reader(CN4) 3. CD/DVD Device (CN7) 4. Fan Power (CN9) 5. Inverter (CN1) 6. Modem Module 7. Speaker (CN31) 8. Modem Cable (CN33) 9. PC CARD (CN13) 10. Touch Screen (CN16) 11. IEEE1394 (CN36) 12. USB 2.0 (CN17) 13. LED Board (CN30) 14.
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Introduction Figure 1 - 7 Mainboard Bottom Cable Connectors & Switches Mainboard Overview - Bottom Cable Connectors and Switches 1.Introduction 1.
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Disassembly 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling 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. To make the disassembly 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.
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Disassembly NOTE: All disassembly procedures assume that the system is turned OFF, and disconnected from any power supply, and that all peripheral cables are disconnected (including telephone lines and network cables). Maintenance Tools The following tools are recommended when working on the computer: 2.Disassembly • • • • • • M3 Philips-head screwdriver M2.
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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 Warning Before you undertake any upgrade procedures, make sure that you have turned off the power, and disconnected all peripherals and cables (including telephone lines). It is advisable to also remove your battery in order to prevent accidentally turning the machine on.
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Disassembly Disassembly Steps The following 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 hard disk drive assembly: To remove the floppy disk drive assembly: 1. Remove the hard disk drive assembly page 2 - 5 1. Remove the LCD back cover page 2 - 6 2. Remove the floppy disk drive assembly page 2 - 12 page 2 - 6 To remove the Mini PCI I/F module: To remove the LCD back cover: 2.
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Disassembly Removing the Hard Disk Drive Assembly 1. 2. 3. 4. 5. 6. Figure 2 - 1 Turn OFF the computer and turn it around so that you may comfortably access the left side. Remove screw 1 from the HDD Bay 2 . Carefully pull the HDD assembly out from the bay and disconnect the IDE cable 3 , and power cable Turn the assembly over and remove screws ( 5 - 8 ) holding the assembly to the bay cover 9 . Remove screws 10 - 15 and separate the hard disk 16 and case 17 .
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Disassembly Figure 2 - 2 LCD Back Cover Removal Sequence a. Remove the screws from the LCD back cover. b. Lift the cover out and set it aside. Removing the LCD Back Cover 1. Turn OFF the computer and place it with its LCD display facing down on a clean, dry, level surface. 2. Remove screws 1 - 11 from the LCD back cover and slide it up towards the top of the computer. 3. Carefully remove the LCD back cover 12 from the main unit and set it aside. b. a. 1 2 3 4 2.Disassembly 11 5 8 6 10 9 12.
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Disassembly Removing the System Memory Figure 2 - 3 1. Remove the LCD back cover (page 2 - 6). 2. The memory sockets will be visible at point 1 on the mainboard. 3. For each module you want to replace, gently pull the latches 2 and 3 toward the sides of the socket to release the module. 4. The module 4 will pop-up, and you can remove it. 5. Insert a new module holding it at about a 30° angle and fit the connectors firmly into the memory slot. a. Memory Removal Sequence a. Locate the memory sockets. b.
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Disassembly Figure 2 - 4 CPU Removal Sequence 2.Disassembly a. Release the latches from the top of the CPU heat sink and fan unit. b. Remove the latches. c. Release the power cable. d. Lift the heat sink & fan unit out. Removing the CPU 1. Remove the LCD back cover (page 2 - 6). 2. Press down and hold each of the latches 1 & 2 (on the top of the CPU heat sink and fan unit) in turn. 3.
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Disassembly 5. Move the latch 1 fully in the direction indicated in to unlock the CPU. 6. Carefully (it may be hot) lift the CPU 3 up out of the socket. 7. When re-inserting the CPU pay careful attention to the pin alignment, it will fit only one way (don’t force it!). CPU Removal Sequence (cont’d) a. Lift the latch to unlock the CPU. b. Lift the CPU out of the socket. b. a. Figure 2 - 5 1 3 2.Disassembly 3.
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Disassembly Figure 2 - 6 I/O Bracket Removal Sequence a. Remove the screws from the I/O bracket. b. Lift the I/O bracket up off the mainboard. Removing the I/O Bracket 1. Remove the LCD back cover (page 2 - 6). 2. Remove the standard screws 1 - 3 , and use long-nosed pliers or a nutdriver to remove the hex socket connector type screws 4 - 9 . 3. Carefully ease the I/O bracket 10 off the mainboard. 4 a. 2.Disassembly 2 b. 10.
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Disassembly Removing the Modem Figure 2 - 7 1. Remove the LCD back cover (page 2 - 6) and I/O bracket (page 2 - 10). 2. Remove screws 1 and 2 from the modem module and disconnect the modem cable at point 3 . 3. Disconnect the modem module 4 from the connector socket 5 , and lift it and the modem and cable mainboard. a. b. 1 Modem Removal Sequence 6 off the a. Remove the screws from the modem unit, and disconnect the cable. b. Lift the modem and cable off the board. 4 5 2.Disassembly 2 6 3 4.
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Disassembly Figure 2 - 8 Floppy Disk Drive Assembly Removal Sequence 1. 2. 3. 4. Remove the LCD back cover (page 2 - 6). Remove screws 1 - 4 from the floppy disk drive assembly. Carefully disconnect the floppy disk drive ribbon cable at point Lift the floppy disk drive assembly 6 off the mainboard. 5 . a. 2 2.Disassembly a. Remove the screws from the FDD assembly and disconnect the FDD ribbon cable. b. Lift the FDD assembly off the board. Removing the Floppy Disk Drive Assembly 3 1 5 4 b.
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Disassembly Removing the Mini PCI I/F Module Figure 2 - 9 1. Remove the LCD back cover (page 2 - 6,). 2. Release the pins at points 1 & 2 and carefully lift up the Mini PCI I/F module. 3. If the module is the Mini PCI/IF 1394 (pictured): Disconnect the cable at point 3 (and 4 if necessary), then lift Mini PCI I/F module 5 and cable 6 off the mainboard. 4.
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Disassembly Figure 2 - 10 L295U CD Device Assembly Removal Sequence a. Remove the screws and disconnect the cable. b. Remove the CD Device. Removing the CD Device Assembly (L295U Series) 1. Remove the LCD back cover (page 2 - 6). 2. Remove screws 1 - 3 , and disconnect cable 3. Remove the CD Device 5 . a. 4 , from the CD device. b. 1 2.Disassembly 4 5 2 3 5.
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Disassembly Removing the CD Device Assembly (L297U Series) 1. 2. 3. 4. Figure 2 - 11 L297U CD Device Assembly Removal Sequence Turn the computer OFF and turn it around so that you may comfortably access the rear. Locate the CD-ROM eject switch and remove screw 1 . Push the CD-ROM eject switch to slide the CD device assembly out of the bay. Remove the CD Device 2 . a. b. 1 d. c. 2 2. CD Device • 1 Screw Removing the CD Device Assembly (L297U Series) 2 - 15 2.Disassembly a.
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2.
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Part Lists Appendix A: Part Lists This appendix breaks down the 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. Note: Some assemblies may have parts in common (especially screws). However, the part lists DO NOT indicate the total number of duplicated parts used.
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Part Lists Part List Illustration Location The following table indicates where to find the appropriate part list illustration. Part L295U - Page # L297U - Page # Base page A - 3 page A - 11 Back page A - 4 page A - 12 Front page A - 5 page A - 13 Card Reader Module page A - 6 page A - 14 A.
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Part Lists L295U - Base L295U - Base 深藍色 L295U - Base A - 3 A.
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Part Lists L295U - Back A.
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Part Lists L295U - Front L295U - Front L295U - Front A - 5 A.
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Part Lists A.
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Part Lists L295U - Combo L295U - Combo L295U - Combo A - 7 A.
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Part Lists A.
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Part Lists L295U - FDD L295U - FDD L295U - FDD A - 9 A.
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Part Lists A.
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Part Lists L297U - Base L297U - Base 外包外包外包鋁箔遮罩 L297U - Base A - 11 A.
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Part Lists A.
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Part Lists L297U - Front L297U - Front L297U - Front A - 13 A.
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Part Lists A.
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Part Lists L297U - CD-ROM L297U - CD-ROM L297U - CD-ROM A - 15 A.
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Part Lists A.
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Part Lists L297U - Toshiba DVD-RW L297U - Toshiba DVD-RW L297U - Toshiba DVD-RW A - 17 A.
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Part Lists A.
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Part Lists L297U - HDD L297U - HDD L297U - HDD A - 19 A.
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Part Lists A.
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Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the systems PCB’s: Diagram - Page Diagram - Page ICH5 (PCI, IDE, UHB, USB, LAN) - Page B - 16 Northwood - 1 of 2 - Page B - 3 Thermal & Fan Controller - Page B - 17 Northwood - 2 of 2 - Page B - 4 Cardbus PCI1520 - Page B - 18 Clock Generator - Page B - 5 IEEE 1394 - Page B - 19 MCH Power - Page B - 6 Cardbus Slot & Mini PCI - Page B - 20 MCH Host - Page B - 7 LAN RTL8100BL - Page B - 21 MCH AGP - Page B - 8
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Schematic Diagrams System Block Diagram Sheet 1 of 28 Schematic Diagram POWER System Block Diagram RTC RTCVCC 3 * CPUCLKC SOCKET-478 3 * CPUCLKT Intel Pentium 4 processor 6 * PCI-33MHz 2 * 48MHz Prescott or Northwood 3 * 66MHz V_CORE GMCHVTT DUAL2.5V +1.5V +1.275V CLOCK GENERATOR. SB3V +1.7V B.Schematic Diagrams LCD DVO CH7017A PANEL +12V +5V +3V SB5V R.G.B.
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Schematic Diagrams Northwood - 1 of 2 Sheet 2 of 28 Northwood 1 of 2 V_CORE [3,4,14,22,27] AB4 AA5 Y6 AC4 AB5 AC6 V_CORE U5A BPM5# BPM4# BPM3# BPM2# BPM1# BPM0# A8 A10 A12 A14 A16 A18 A20 B7 B9 B11 B13 B15 B17 B19 C8 C10 C12 C14 C16 C18 C20 D7 D9 D11 D13 D15 D17 D19 E8 E10 E12 E14 E16 E18 E20 F9 F11 F13 F15 F17 F19 AA8 AA10 AA12 AA14 AA16 AA18 AB7 AB9 AB11 AB13 AB15 AB17 AB19 AC8 AC10 AC12 AC14 AC16 AC18 AD7 AD9 AD11 AD13 AD15 AD17 AD19 AE6 AE8 AE10 AE12 AE14 AE16 AE18 AE20 AF2 AF5 AF7 AF9 AF11 AF13
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Schematic Diagrams Northwood - 2 of 2 Sheet 3 of 28 Northwood 2 of 2 V_CORE +3V [2,4,14,22,27] [4,5,6,11,12,13,14,15,16,17,19,20,21,22,23,24,26,27,28] HD#[0..63] HD#[0..
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Schematic Diagrams Clock Generator Sheet 4 of 28 Clock Generator 1 = HI , 0 = LOW +5V FREQUENCY SETUP TABLE (FS4) (FS3) (FS2) (FSA) (FSB) 0 0 0 0 0 0 0 0 1 0 0 0 L45 +3V 0 1 0 CPU (MHz) SRC (MHz) AGP (MHz) PCI (MHz) 100.00 200.00 133.33 100/200 100/200 100/200 66.67 66.67 66.67 33.33 33.33 33.33 MBID1 MBID2 ID1 1 1 ID2 1 0 ID3 0 1 ID4 0 0 V1.0 V2.0 V3.0 R458 10K R459 10K_R R456 R457 0_R 0 MBID1 [22] MBID2 [22] BK2125HM121-120 ohm-300mA_0805 C78 10u/10V_1206 0.
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Schematic Diagrams MCH Power Sheet 5 of 28 MCH Power Close Power Ouput VCCA_FSB GMCHVTT +1.5V GMCHVTT [6,28] +1.5V [7,11,13,14,15,22,28] DUAL2.5V [8,10,22,26] VSMYRC [8] VSMYRCO [8] +1.7V [26] C42 CT46 + + 10u/10V_1206 CT1 + 4.7u/16V_1206 CA32 CA192 0.1u_X7R CA33 C52 C51 CA193 + + CT4 + CA7 0.1u_X7R CA12 0.1u_X7R C56 0.47u 0.1u_X7R 0.1u_X7R 1u 0.47u L8 C53 + CA31 NORTHWOOD:1.45V PRESCOTT:1.225V CT3 C55 0.82uH +1.5V 0.1u_X7R 100u/16V_6.3*7 4.7u/16V_1206 4.7u/16V_1206 0.
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GMCHVTT R66 102_1% HA#3 HA#4 HA#5 HA#6 HA#7 HA#8 HA#9 HA#10 HA#11 HA#12 HA#13 HA#14 HA#15 HA#16 HA#17 HA#18 HA#19 HA#20 HA#21 HA#22 HA#23 HA#24 HA#25 HA#26 HA#27 HA#28 HA#29 HA#30 HA#31 R69 R70 301_1% 200_1% HGTLREF R63 20_1% GMCH-PWROK Z0601 HDSWING HGTLREF 3.5 inches max [3] HDSWING [12,14,28] PWROK [3,14,22] SUSB# AE14 E24 C25 F23 5 2 PWROK HDRCOMP HDSWING HDVREF CLOSE MCH 0.1u CA202 HA#[3..31] HA#[3..
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[15] HI_[0..10] HI_0 HI_1 HI_2 HI_3 HI_4 HI_5 HI_6 HI_7 HI_8 HI_9 HI_10 [15] [15] [4] R293 113_1% +1.5V R36 +1.5V R31 CLOSE NB CI_SWING CI_VREF CA182 C215 0.1u 0.01u CA179 C217 C216 CA4 0.1u 0.01u 0.01u 0.1u CLOSE TO GMCH B - 8 MCH AGP (71-P2970-002A) HI_STRF HI_STRS TZ0772 TZ0773 [14] ICHSYNC# [15,21] PCIRST# DREFCLK TZ0755 CP7 10p_R R292 226_1% AF5 AG3 AK2 AG5 AK5 AL3 AL2 AL4 AJ2 AH2 AJ3 AH5 AH4 52.
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SWE_A# SCAS_A# SRAS_A# [9,10] [9,10] SBA_A0 SBA_A1 [9,10] [9,10] SCS_A0# SCS_A1# C30 R26 42.2_1% C11 1u R14 30.1K_1% SWE_A# SCAS_A# SRAS_A# AB34 Y34 AC33 SBA_A0 SBA_A1 AE33 AH34 SCS_A0# SCS_A1# TZ0801 TZ0802 AA34 Y31 Y32 W34 TZ0803 TZ0804 TZ0805 TZ0806 TZ0807 TZ0808 AK32 AK31 AP17 AN17 N33 N34 AK33 AK34 AM16 AL16 P31 P32 DUAL2.5V TZ0809 AL34 TZ0810 AM34 TZ0811 AP32 TZ0812 AP31 TZ0813 AM26 SMXRCOMPVOH AN9 SMXRCOMPVOL AL9 SMVREF_A E34 SMXRCOMP AK9 2.2u_0805 [9,10] SDQ_A[0..
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Schematic Diagrams MCH Memory Termination Sheet 9 of 28 MCH Memory Termination +1.275V [8,10] SDQS_A[0..7] [8,10] SDQ_A[0..63] [8,10] SDM_A[0..7] [26] SDQ_B[0..63] [8,10] SDQ_B[0..63] SDQS_A[0..7] SDQS_B[0..7] [8,10] SDQS_B[0..7] SDQ_A[0..63] SDM_B[0..7] [8,10] SDM_B[0..7] SDM_A[0..7] +1.275V +1.275V CA17 SDQ_B20 SDQ_B16 SDQ_B17 SDQ_B21 +1.275V SDQS_A2 R47 56 B.
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Schematic Diagrams DDR RIMM SDQ_A[0..63] [8,9] SDQ_A[0..63] [8,9] SDQ_B[0..63] SMAA_A[0..12] [8,9] SMAA_A[0..12] [8,9] SMAA_B[0..12] SDM_A[0..7] [8,9] SDM_A[0..7] [8,9] SDM_B[0..7] SDQS_A[0..7] [8,9] SDQS_A[0..7] [8,9] SDQS_B[0..7] Sheet 10 of 28 DDR RIMM SDQ_B[0..63] SMAA_B[0..12] DUAL2.5V SDM_B[0..7] SDQS_B[0..7] VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ CA185 CA213 CA73 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.1u_X7R CA2 CA228 CA91 CA46 CA189 0.
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Schematic Diagrams DVO Chrontel CH7107A +1.5V +3V +5V [5,7,13,14,15,22,28] [3,4,5,6,12,13,14,15,16,17,19,20,21,22,23,24,26,27,28] [4,12,13,14,16,17,19,21,22,23,24,25,26,27,28] Sheet 11 of 28 DVO Chrontel CH7107A L42 +3V 10u/10V_1206 0.1u_X7R 8P4R*75 4 3 2 1 4 3 2 1 RN54 [15,21,22] PCIRST#1 [7] DVOBC_CLKIN TZ1132 TZ1131 Z1102 10u/10V_1206 0.1u_X7R 10u/10V_1206 0.1u_X7R CA206 0.1u_X7R CA187 CA203 0.1u_X7R 0.1u_X7R DVOC_D[0..11] [7] DVOC_D[0..
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Schematic Diagrams LCD Connector +3V SB5V SB5V +3V +5V +12V +5V [6,14,28] PWROK R436 10K CA296 +5V 14 1 PANEL-ON [22] 2 Z1201 SUSPEND# D38 E 3 6 [21] B SUSPEND C SATALED# U23A 74HCT08 7 Z1207 1 2 3 4 5 6 7 8 9 10 SUSPEND# Z1218 [21] CD-LED# 1N4148 [22] FDD-LED# A [22] POWERSW# [14] RESET-SW# D37 [14] U23B 74HCT08 0_1206 [22] SYSTEM-ON# 1N4148 A C HDD-LED# C 5 GPO23 CN30 +5V 330_0805 L32 7 [14] R276 Q22 2N3906 4 [11] LIGHTPWR R277 10K 0.
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Schematic Diagrams CRT & USB Sheet 13 of 28 CRT & USB +1.5V +5V +12V SB5V [5,7,11,14,15,22,28] [4,11,12,14,16,17,19,21,22,23,24,25,26,27,28] [12,16,17,22,24,25,26,27,28] [3,12,14,22,26,28] R571 Q20 C 2N3904 E D29 1N4148 C A close to con. L59 A C A C +5V D11 Z1320 R570 AC DA204U Q21 C 2N3904 E D28 1N4148 C A L28 Z1303 1 Q46 2N7002 G Z1302 47 Z1305 S Z1304 D L29 D10 D9 D8 DA204U DA204U A B Z1331 R234 R264 1K 2.
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Schematic Diagrams ICH5 (Power, LPC, Clock, SMbus) C93 SB3V + CT65 C107 CA121 CA111 CA236 C102 10u/10V_1206_R 1u 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.01u C86 0.01u 0.01u +1.5V CT61 + C85 CA98 CA113 CA233 CA115 CA107 CA112 0.01u 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.1u_X7R 10u/10V_1206_R + CT68 + CT69 10u/10V_1206 10u/10V_1206_R R453 VREF5V CA117 CA104 CA120 CA109 CA234 CA116 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.1u_X7R 0.
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Schematic Diagrams ICH5 (PCI, IDE, UHB, USB, LAN) D8 AC_SDIN0 AC_SDIN1 AC_SDIN2 [24] AC_SDIN0 [24] AC_SDIN1 [24] AC_SDIN2 [24] AC_RESET# [24] AC_SYNC [24] AC_SDOUT R447 0 Z1501 E12 D12 A13 C12 B8 A9 TZ1522 TZ1523 2.7K R413 8.2K REQ4# R472 8.2K 8 7 6 5 RN59 REQ3# REQ2# REQ0# INTA# 8 7 6 5 1 2 3 4 +3V [21] [21] [21] SDA0 SDA1 SDA2 [21] PDD[0..15] [21] SDD[0..15] SB3V CA244 8P4R*8.2K 1 2 3 4 +3V SERR# DEVSEL# PLOCK# IRDY# 8 7 6 5 RN62 1 2 3 4 1 +3V 3 0.
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Schematic Diagrams Thermal & Fan Controller +3V +5V +12V Sheet 16 of 28 Thermal & Fan Controller [3,4,5,6,11,12,13,14,15,17,19,20,21,22,23,24,26,27,28] [4,11,12,13,14,17,19,21,22,23,24,25,26,27,28] [12,13,17,22,24,25,26,27,28] SB3V + CT72 CA119 10u/10V_1206 0.1u R133 10K 2N3906 9 TACH1 14 Z1606 R135 0 6 Z1607 R454 10K SMBALERT# [14] FANIN1 +12V E1 [3] 0 Z1602 16 R143 0 Z1603 1 13 THERMDA SMBDATA R155 4.7K_R 4.7K SMBCLK Z1611 R163 4.
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Schematic Diagrams Cardbus PCI1520 CLOSE TO TPS_2224 Sheet 17 of 28 Cardbus PCI1520 +3V +5V +12V +VCC_A +VCC_B +VPP_A +VPP_B [3,4,5,6,11,12,13,14,15,16,19,20,21,22,23,24,26,27,28] [4,11,12,13,14,16,19,21,22,23,24,25,26,27,28] [12,13,16,22,24,25,26,27,28] [19] [19] [19] [19] +3V +VCC_A +3V CT32 + CT31 + CA106 CA247 CA128 CA246 CA118 0.1u 0.1u 0.1u 0.1u CA136 CA129 CA237 C116 C90 C321 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u +VPP_A CA110 CA256 CF8 0.1u 0.1u 4.7u/16V_1206 0.
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Schematic Diagrams IEEE 1394 Sheet 18 of 28 IEEE 1394 CN36 CN29 1 2 3 4 5 6 1 2 3 4 5 6 R598 R242 R241 R240 R239 Z1802 Z1803 Z1804 Z1805 Z1806 IEEE-1394 CON. 1 2 3 4 CONNECT TO CONNECTOR GROUND PIN GND1~3 =GND U17 BEAD BK1608LL121 120 ohm 0_r(0603) 0_r(0603) 0_r(0603) 0_r(0603) Z1808 Z1809 Z1810 Z1811 Z1812 8 7 6 5 1 2 3 4 5 6 7 8 SMD-1394 CON.
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Schematic Diagrams Cardbus Slot & Mini PCI Sheet 19 of 28 Cardbus Slot & Mini PCI A-CAD0 A-CAD1 A-CAD3 A-CAD5 A-CAD7 [17] [17] [17] [17] [17] [17] [17] [17] [17] B.Schematic Diagrams CN13A [17] A-CAD[0..
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Schematic Diagrams LAN RTL8100BL +A3V L50 +A2.5V 0_0805 L18 CA281 + CT70 10u/10V_1206 0.1u CA282 CA280 0.1u 0.1u 0 LANVDD2.5 SB3V 0.1u C CA102 CA144 CA145 C145 E Q15 2SB1198K CA143 C147 CA157 + 0.1u 1000p 0.1u 10u/10V_1206 CT37 CA150 B SB3V CT36 + Sheet 20 of 28 LAN RTL8100BL CA279 0.
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Schematic Diagrams IDE Connector & Firmware Hub Sheet 21 of 28 IDE Connector & Firmware Hub +3V [3,4,5,6,11,12,13,14,15,16,17,19,20,22,23,24,26,27,28] +5V [4,11,12,13,14,16,17,19,22,23,24,25,26,27,28] [15] PDD[0..15] PDD[0..15] +3V +5V 14 U23C 74HCT08 [7,15] CA151 CA278 0.1u 0.1u LAD[0..3] Z2101 8 R275 33 7 +3V R272 4.
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Schematic Diagrams SIO W83627HF L49 R488 4.7K 0_0805 +5VIN Z2216 R483 +3V CA257 CA255 CA263 CA265 0.1u 0.1u 0.1u 0.1u R517 +12V +12VIN SB5V POWER-ON [28] 1K 28K_1% R533 10K R480 10K_1% D R490 10K +5V + CT66 CA262 CA273 CA254 CA260 CA275 CA274 0.1u 0.1u 0.1u 0.1u 0.1u G PWRON# R478 INDEX# R474 1K_R RTSA# R535 10K_R SOUTA R536 0.1u 10K +5V 10K_R 4 3 2 1 Sheet 22 of 28 SIO W83627HF 5 6 7 8 8P4R*1K_R RN60 SIO-48M SIOPCLK LDRQ# R507 0 CA267 RTCVCC 0.
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Schematic Diagrams Serial & Parallel Port Sheet 23 of 28 Serial & Parallel Port U37 CN21 DCD1# DSR1# RXD1 RTS1# TXD1 CTS1# DTR1# RING1# 1 6 2 7 3 8 4 9 5 R585 R584 R583 R582 R581 R580 R579 R578 DCD# DSR# SIN RTS# SOUT CTS# DTR# RING# BEAD BK1608HS-241 BEAD BK1608HS-241 BEAD BK1608HS-241 BEAD BK1608HS-241 BEAD BK1608HS-241 BEAD BK1608HS-241 BEAD BK1608HS-241 BEAD BK1608HS-241 DTR# SOUT RTS# 9 10 11 DSR# RING# SIN CTS# DCD# 4 5 6 7 8 L52 Z2301 26 +5V 0_0805 COM1 TI1 TI2 TI3 RI1 RI2 RI3 RI4 RI5
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Schematic Diagrams CODEC R154 L48 +5V 0_R BEAD BK2125HS601 600ohm_0805 +3V +A5V Z2446 U29 1 +12V 4 CB10 2 3 1u_0805_R V_in 7 6 5 GND GND GND CT67 CA123 10u/10V_1206 0.1u CA125 CA126 CA140 CA127 0.1u 0.1u 0.1u 0.1u R156 R166 0 C247 R477 0_0805_R AGND CP43 CP42 C120 CP5 10p 10p 27p 10p PHONE PHONE R540 Z2403 3 CD_R CD_GND_REF LINE_IN_L LINE_IN_R LINE_OUT_L LINE_OUT_R 1KZ2405 C266 0.
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Schematic Diagrams Amplifiers & Inverter Connector Sheet 25 of 28 Amplifiers & Inverter Connector +A12V L51 +12V +2.25VREF 0_0805 CF12 CA284 +A5V [24] Z2520 R576 0 R577 7.5K_R 4.7u/16V_1206 0.1u Z2501 4.7K CB16 16 2.2u_0805 Z2502 R546 3K 2 Z2503 -INV1 5 OUT1 OUT1 L_OUT 7 8 L_SPEAKER C206 [24] 100u/16V_6.
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Schematic Diagrams Power 1 SB3V SB5V [14,15,16,19,20,22,23,24] [3,12,13,14,22,28] +1.275V +1.7V DUAL2.5V +5V +12V [9] [5] [5,8,10,22] [4,11,12,13,14,16,17,19,21,22,23,24,25,27,28] [12,13,16,17,22,24,25,27,28] Sheet 26 of 28 Power 1 SB5V SB5V A Q19 3 1uH 2 C32 0.1u 10u/25V_1206 R12 10 1 A 10u/25V_1206 1 45.3K_1% Z2616 CA169 0.01u 0.1u R231 + CT39 7 FBK VDDP PGOOD DL GND PGND SC1470 R1 C10 C4 0.1u 0.
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Schematic Diagrams Power 2 V_CORE +5V +12V VIN [2,3,4,14,22] [4,11,12,13,14,16,17,19,21,22,23,24,25,26,28] [12,13,16,17,22,24,25,26,28] VIN L16 1 2 +5V 1.6uH C275 C276 Z2715 0 Z2717 C312 R608 D 0 300_1% BG C95 R169 + OPEN R196 0.01u 22K 6 5 VIN 4 R197 1.62K_1% M4 G D Z2707 S S VPN3 C128 383_1% R192 Q14 C146 1u 2.2nF_0805_R Z2722 C136 1000p C144 0.
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Schematic Diagrams Power 3 GMCHVTT +1.5V +2.5V +3V +5V +12V SB5V [5,6] [5,7,11,13,14,15,22] [3,4,5,6,11,12,13,14,15,16,17,19,20,21,22,23,24,26,27] [4,11,12,13,14,16,17,19,21,22,23,24,25,26,27] [12,13,16,17,22,24,25,26,27] [3,12,13,14,22,26] NORTHWOOD:1.45V/1.5A PRESCOTT:1.225V/1.5A U4 Sheet 28 of 28 Power 3 J4 1 +3V 4 +3V +5V 0 8 C323 C324 7 +5V 2 5 P_GND3 6 PGOOD2 C5 0.1u 0.1u 10u/25V_1206 1 7 VIN DH VOUT LX VCCA ILIM FBK VDDP PGOOD GND DL PGND SC1470 R15 6 0.
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B.