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MiTAC 8355 service manual No Display System Failure, Reset Circuit Checking2

Models: 8355

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8355 N/B MAINTENANCE

8.3 No Display (System Failure)

Reset Circuit Checking(2)

P12-14

RTC_X1

+5V

J529

RTC_X2

HDD_RST#

1

R611

HDD

U20

CONNECTOR

X5

+3V

22

ALL_PWROK_2.5V

R826

32.768KHZ

R827

From previous page

C735

C729

10K

South Bridge

10P

10P

+3V

10K

3

P15

R282

Q533

2

D27

4.7K

U510c

DTC144TKA

BAW56

VT8235

14

PCIRST#

74AHC14_V

3

Q534

5

2

R276

0

6

DTC144TKA

1

CDROM_RST# 5

J530

7

ALL_PWROK_5V

IDE_RESET#

CDROM

R617

From previous page

1

22

CONNECTOR

+3V

+3V

JL512

R822

U510B

U510D

P16 U514

JL508

74AHC14_V

14

14

74AHC14_V

166

22

CARD_RESET#

4

3

9

8

CB710

R720

7

7

175

0

P18 U516

92

PCI_1394_RESET#

JL509

JL513

LPC_SPIO_RESET#

9

U509 P22

IEEE1394

Super I/O

P17 J9

R633

JL510

26

0

MINIPCI_RESET#

R789

U506 P5

PCI Slot

JL514

NB_RESET#

22

AD25

VT8385

P7 U16

R727

AG28

22

AGP_RESET#

JL511

ATI M10

130

Image 131

MiTAC 8355 service manual No Display System Failure, Reset Circuit Checking2

Contents

8355 Contents 8355 N/B Maintenance Trouble Shooting ……………………………………………………………………………………… Audio Failure ………….…………………………………………………………………………………………… Introduction Hardware Engineering Specification 8355 N/B Maintenance CPU System Hardware Part Integrated Memory Controller CPU ClawHammer ProcessorCompatible with Existing 32-bit Code Base AMD x86-64 Technology Way Associative ECC-Protected L2 Cache Power ManagementHyperTransport. Technology to I/O Devices Kbyte 2-way Associative ECC-Protected L1 Data Cache Packaging Power SuppliesElectrical Interfaces Recommended Application System frequencySystem frequency synthesizerICS950402 Programmable Timing Control Hub AMD-K8 processor Features High Performance K8 CPU Interface VIA K8T800+VT82353.1 K8T800 Full Featured Accelerated Graphics Port AGP 8x Controller 8355 N/B Maintenance 3.2 VT8235 8355 N/B Maintenance Smartshader Advanced Shader Technology General Description Dual Display Support High Performance Memory Support Ideal for Windows 2000 and Windows XP General and Interfacing Features 8355 N/B Maintenance 8355 N/B Maintenance 5 AC’97 Audio System C-MEDIA Electronics INC., CMI9738-S 8355 N/B Maintenance MDC PCTel Modem Daughter Card PCT2303W Compatibility Operating System Compatibility Modulation DTE interface Dtmf Tone Frequency Error CorrectionDtmf signal level Data Compression High group 10+/-2dBm Low group 12+/-2dBm Transmit Level Integrated 400 Mbit 2-Port PHY 7 VT6307L PCI 1394a Integrated Host ControllerOverview 8355 N/B Maintenance Embedded CONTROLLER-H8 Main Features Interface TimerMemory Ports Converter Wait control Power-down modesOther features Interrupts Features 64MB, 128MB, 256MB, 512MB x64 200-Pin DDR Sdram SODIMMs System Flash Memory BiosMemory System 11 VT6103 Fast Ethernet 10/100 1-PORT PHY/TRANSCEIVER 3V operation with 5V tolerant Cardbus/MediaReader Controller Smart Card Interface Pin Lqfp / 209-ball Lfbga package for CB710 PCI InterfaceCardBus Interface Memory Stick Interface Secure Digital Interface SmartMedia Interface Interrupt configurationPower Management Control Logic Stick interface Misc Control Logic Supports Zoomed Video port Power Switch Interface General Description Outstanding FeaturesSuperI/O-PC87393 8355 N/B Maintenance Hot Key Function Keys Feature Meaning CombinationOther Functions Acpi mode Power ON/OFF/Suspend/Resume ButtonCover Switch APM mode Fan power on/off management LED Indicators 7 I/O Port Cmos Battery Mini PCI type III BBattery current limit and learning ROM Drive Peripheral Components Doze Mode Power ManagementSystem Management Mode Full on mode Suspend to HDD Suspend to Dram HDD & Video Access Other Power Management Functions Appendix 1 VT 8235 Gpio Definition To the previous table Shadowed block is the selected function Appendix 2 H8 Pins Definition Charging KB OUT8 Ilimit ↑ Pull High ↓ Pull Low →3V Level shift CPU Appendix 3 8355 product spec AC adapter FCC, CE, UL, TUV, CB, Bsmi Left-side View System View and DisassemblySystem View Front View Rear View Right-side View Top View Bottom View System Disassembly DDR Sdram Reassembly Battery PackDisassembly Remove three screws Keyboard Slide out the keyboard cover Disconnect the cable from system board. Figure Remove four screws 3 CPU Disconnect the fan’s cord 11 Remove HDD compartment HDD Module 13 slide out the hard disk drive 15 Remove the CD/DVD -ROM drive 5 CD/DVD-ROM Drive 16 Remove the SO-DIMM SO-DIMM 17 Remove two screws LCD Assembly 19 Remove the hinge cover 21 Remove the LCD assembly 22 Unscrew four screws Inverter Board 8355 N/B Maintenance 24 Separate the LCD panel LCD Panel 8355 N/B Maintenance 26 Unscrew nine screws System Board 28 Remove the top cover Unscrew one screw and disconnect fan’s cord. Figure Reassembly 32 Remove the modem card Modem Card 33 Free the touch pad Touch Pad 8355 N/B Maintenance Main Board Side a Definition & Location of Connectors / Switches VR1 Volume Controller Definition & Location of Connectors/ Switches Main Board Side B Definition & Location of Major Components U517 TPA0202 Audio Amplifier U518 CMI9738 Audio Codec DDR Sdram Memory Interface Continue Pin Descriptions of Major ComponentsAMD Athlontm 64 Processor-1 DDR Sdram Memory Interface Miscellaneous AMD Athlontm 64 Processor-2HyperTransport Technology Debug Hyper Transport Receive Interface K8T800MVT8385 North Bridge-1Hyper Transport transmit Interface AGP Bus Interface K8T800MVT8385 North Bridge-2Hyper Transport Control Link Interface Girdy GIRDY# K8T800MVT8385 North Bridge-3 K8T800MVT8385 North Bridge-4 Clock, Reset, Power Control and Test Straps VT8235 South Bridge-1Advanced Programmable Interrupt Controller APICInterface CPU Interface VT8235 South Bridge-2CPU Speed Control Interface Low Pin Count LPCInterface PCI Bus Interface Continue VT8235 South Bridge-3PCI Bus Interface Universal Serial Bus 2.0 Interface VT8235 South Bridge-4LAN Controller -Media Independent Interface MII General Purpose I/O Serial IRQ VT8235 South Bridge-5UltraDMA-133 /100 /66 /33 Enhanced IDE Interface UltraDMA-133 /100 /66 /33 Enhanced IDE Interface Continue General Purpose Inputs Continue Resets,Clocks,and Power StatusVT8235 South Bridge-6 General Purpose Inputs VT8235 South Bridge-7 Power Management and Event DetectionPower Management and Event Detection Continue AC97 Audio /Modem Interface Power and GroundVT8235 South Bridge-8 Internal Keyboard Controller System Management Bus SMBInterface I 2 CBus Power and Ground ContinueISA Subset /Parallel Bios ROM Interface VT8235 South Bridge-9 U506 System Block DiagramU503 Maintenance Diagnostics Code Post Routine Description Error Codes 118 Debug Tool Diagnostic Tool for Mini PCI Slot Diagnostic Tool for PIO Port Trouble Shooting +1.25VSREFMEM No Power +1.2VLDTA Agpvddq PJ502 No power Adinp Battery Can not Be Charged Battery can not Charge System Clock Check No Display No Display System Failure Reset Circuit Checking1 No Display System Failure Reset Circuit Checking2 No Display Parts Signals U9 P6 AGP Controller Failure LCD No Display Charge BD J2,J3 are cold colder? AGP Controller Failure J503 External Monitor No Display Display Yes OK? Replace faulty monitor Symptom The extend DDR RAM is failure or system hangs up Memory Test Error Parts Memory Test Error Key Board Controller Keyboard K/B Touch-Pad T/P Test Error Test Yes Ok? Replace the faulty Keyboard or Touch-Pad Keyboard or Touch-Pad Test Error Hard Disk Driver Test Error Hard Driver Test Error Hard Disk Driver Test Error J530 CD-ROM Driver Test Error CD-ROM Driver Test Error Symptom An error occurs when a USB I/O device is installed USB Test Error U501 PartsSignals USB Test Error PC-Card Socket Failure Symptom An error occurs when a PC card device is installed PC Card Test Error Memory-Card Socket Failure Memory-Card Socket Failure Memory Card Test Error Symptom An error occurs when IEEE1394 device is installed IEEE1394 Test Error Test Error Symptom An error occurs when LAN device is installed LAN Test Error Correct it LAN Test Error Input Of Audio Subsystem Audio Failure Output Of Audio Subsystem Audio Drive Failure Part Number Description LocationS Spare Part List-1 Spare Part List-2 CFM-BATFUSE Thermal 98C Spare Part List-3 DIODEBAV70LT1,70V,225MW,SOT-23 Spare Part List-4 DVD Combo DRIVE8X24X10X24X,SBW Spare Part List-5 ICEM6A9320BI-3.6M,DDR SDRAM,4MX Spare Part List-6 ICVT8235,SOUTH BRIDGE,BGA,487P Spare Part List-7 Spare Part List-8 LABELSOFTWARE,INSYDE BIOS-M RELAYREED,200V,.5A,NORMAL Open SW1 Spare Part List-9 RES2M Spare Part List-10 RP7,RP8 Spare Part List-11 RP6,RP9 Spare Part List-12 TRANSDTC144WK,NPN,SOT-23,SMT Spare Part List-13 Spare Part List-14 WIRE#28,UL1061,40MM,BLUE,PRCPage Page Model Corefbh CPURESET# CPURESET# 3,12 DDRRASB#Memresetl CPURESET# VID2 NBLDTRST# CPURESET#VID0 VID1 DIMM-SLOT & Termination K8T400M- VT8385 H8RESET# BATTG# FS0 14MSBIOSCH8RESET# ACPOWER# M10GPIO5 AGPRESET#M10GPIO0 M10GPIO4 ATI M10-P2/4 VMDA0 MEMAMD0 MEMAMD2MEMAMA2 MEMAMD0 VMA2 VMA0VMDA0 VMA0 VMB0 VMDB0 VMDB32 VMA1 VMDA1 VMDA33 PANELID0 PANELID2 PANELID3 CrtinCrtgreen +PANELVDD VT8235 1/3- PCI & USB VT8235 2/3- IDE & AC97 VT8235 3/3- VLINK&LAN HDPDD3 IDEDPDD3 HDPDD4 IDEDPDD0IDEDPDD1 HDPDD2 IDEDPDD2 CAD2 CAD11 CVS1 CARDRESET#POWERONRESET# CAD1 SDWP# SDDATA1 LEDCL190 SDDATA0 Sdclk Sdcmd SDDATA3 SDDATA2 MINIPCIGPORESET#Wirelesspd SDCD# GND SDWP# TPB0P PCIAD4 PCIAD1TPA0N TPA0P LANTX+ LANPHYRESET#LANMRXDV2 PJTX+ AC97SDIND0 Avdd MicvrefMicint Micext AC97SDOUT Spdifout Audiomute AmpmuteDEVICEDECT# DECTHP#/OPT PIOD/INT# LPCSPIORESET# PD6LPCSPIORESET# LPCFRAME# INIT# SCI#/FANSWITCH Tclkd H8RESET#SCI#/FANSWITCH H8WAKEUP# H8ENABKL H8RESET# USBP2P USBOC0# USBOC2#USBOC5# USBOC2# USBP0P SD6 SA6 SA0 SD1 SA1SD2 SA2 PCIGNT#4 SD3 SA3 PCIGNT#5 PCICARDBUSGNT#0 SD4 SA4 PWRONM9 OD3OD5 Pgvcccore +2.5VS&+1.25VS&+1.8V&+1.2V VOSENSE2 +3VS / +5VSDVMAINP2 VOSENSE1 For M10 +1.2V&+1.0V Ilimit AdinpADP1 Batt Battdead Adinp BattLiovp Liovp Charging PVID2 VMAINP3PVID0 PVID1 Reference Material Tel Fax Second Edition Nov Mail Willy .Chen @ mic.com.tw