Uniwill 340S8 Page 56 Service Manual Download

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Chapter 5 Troubleshooting Guidelines

340S8 Rev : A Page

5.3 LCD no display or Invalid Picture

Symptom: The LCD shows nothing or abnormal picture, but it is ok for external

monitor.

LCD No Display

Try another known good LCD module

Display

OK?

Yes

Replace each parts of LCD

module / cables and test

Summary of Contents for 340S8

Page 1: ...ype FCPGA 500 700 MHz Pentium III Socket 370 Type FCPGA 500 1 0GHz b Superior portability with all in one design c Support high quality audio include 2 internal high power speaker d Fully Support ACPI 1 0 meet PC98 PC99 requirement e Built in 56K modem for Data Fax Voice modem or Internet optional f Support high performance hardware 2D 3D graphic engine ...

Page 2: ...cache associatively ECC for system bus data B Core Logic SIS 630S Integrated North Bridge advanced hardware 2D 3D GUI engine Super South Bridge and a 4X AGP internal Integrated Ultra AGP technology and advanced 64 bit graphic display interface and delivers AGP 4X performance and Fast Write transactions Provides powerful hardware decoding DVD accelerator to improve DVD playback performance Provides...

Page 3: ...fined 3 new keys and down load able key matrix E Super I O Controller NS PC87393 LPC System Interface with synchronous cycles up to 33 MHz bus clock PC99 and ACPI Compliant Floppy Disk Controller FDC Support SPP EPP and ECP Parallel port Software compatible with the 16550A and the 16450 serial port HP IR ASK IR Fast IR support F Clock Generator Realtek W83194R 63S Multiple CPU clocks for SDRAM arc...

Page 4: ...components are integrated as shown in the next page CPU Sock et 370 Host Bus Core Logic SIS 630S PCI LPC DIMM 2 Alc 200 DIMM 1 LM483 5 DS90C F363A CS9211 CR T PHY RTL820 1 Moden Conn RJ 45 TFT LCD DSTN LCD US B SMBu s CPU POWE R PCMCI A OZ6812 SLOT 1 CD ROM HD D RT Cpu_core 1 8 V 2 5V Vcc_c mos ...

Page 5: ...wer source CPU_Core CPU Core power source For Celeron the voltage is 2 0V For Pentium III it is 1 7V 2 5V 2 5V power source 1 8V 1 8V power source for SIS630 CPU AGTL termination power source KBVCCA KBC AD DA 3 3V reference voltage RTCVDD Real time clock power source 5V_AUX LAN 5V always power source 3V_AUX LAN 3 3V always power source KBC 3 3V power Source 3V_RX_TR LAN 3 3V analog power source ...

Page 6: ...can support 3 3V 5V 12V for the main system The DC DC CPU power can support 1 3V 2 05V 1 8V 2 5V for the CPU 1 2 6 AC DC Adapter Input Voltage 100 240 10 AC Input Frequency 50 60 Hz 3Hz Input AC current 1 5A max 90 VAC Efficiency Better than 80 Inrush Current 50A 115VAC 100A 230VAC Holdup Time 5mS minimum Output Voltage Current 20V 3 0A Output Load Regulation 5 1 2 7 Inverter Input Voltage 8 22 VD...

Page 7: ...protect 1 2 9 Memory Module 144 pins SO DIMM 3 3V SDRAM memory type 1Mx16 4Mx16 16Mx16 2Mx8 8Mx8 16Mx8 memory size 16M 32M 64M 128M memory clock 66 MHz 100MHz 133MHz Memory Configuration Table DIMM 1 DIMM 2 Total 16M 0 16M 32M 0 32M 64M 0 64M 128M 0 128M 16M 16M 32M 16M 32M 48M 32M 32M 64M 16M 64M 80M 32M 64M 96M 64M 64M 128M 64M 128M 192M 128M 128M 256M 1 2 10 Interrupt Request Channel Setting Ha...

Page 8: ... 82371AB EB PCI Bus Master IDE Controller 15 Secondary IDE Controller dual FIFO 1 2 11 DMA Channel Setting Hardware using the setting 01 IrDA V3 0 Fast Infrared Port 02 Standard Floppy Disk Controller 03 ECP Printer Port LPT1 04 Direct memory access controller 1 2 12 System LED Indicator 4 Num lock on off 4 Cap lock on off 4 Scroll Lock on off 4 FDD on off 4 HDD on off 4 CDROM on off 4 Power on of...

Page 9: ...RT display Fn F5 SMI Volume increase Fn F6 SMI Volume decrease Fn F7 SMI Brightness up Fn F8 SMI Brightness down Fn F9 SMI Contrast up for DSTN LCD Fn F10 SMI Contrast down for DSTN LCD UNIWILL COMPUTER CORP No 24 Pei Yuan Rd Chung Li Industrial Park Chung Li City Taiwan R O C TEL 886 3 461 6000 FAX 886 3 461 6317 URL http www uniwill com tw ...

Page 10: ...A13 A11 112 SRAS RFU 65 SCAS RFU 66 CKE0 RFU 62 CLK0 61 CLK1 RFU 74 RFU A12 70 RFU A13 72 CKE1 RFU 68 NC CB0 57 NC CB1 59 NC CB2 77 NC CB3 79 NC CB4 58 NC CB5 60 NC CB6 78 NC CB7 80 CN7 DIMM144 REV DQ0 3 DQ1 5 DQ2 7 DQ3 9 DQ4 13 DQ5 15 DQ6 17 DQ7 19 DQ8 37 DQ9 39 DQ10 41 DQ11 43 DQ12 47 DQ13 49 DQ14 51 DQ15 53 DQ16 83 DQ17 85 DQ18 87 DQ19 89 DQ20 93 DQ21 95 DQ22 97 DQ23 99 DQ24 121 DQ25 123 DQ26 1...

Page 11: ...83194BR 63S ICS9248 146 ICS ON OFF SDRAM SW3 1 4 3 2 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF 66 6 66 6 66 6 66 6 100 100 100 100 100 133 133 133 133 33 3 33 3 33 3 33 3 33 3 33 3 33 3 14 318 14 318 14 318 14 318 14 318 14 318 14 318 CN27 MDC CON MONO_OUT 1 GND 3 AUXR 5 AUXL 7 CDGND 9 CD_R 11 CD_L 13 GND 15 3 3V 17 GND 19 3 3V 21 S...

Page 12: ... VSYNC 7 DACGND 15 DDCDATA 8 DACGND 2 1 7 Modem Phone CN19 and Modem Connector CN22 INT_MIC 11 BLTADJ 17 DISPON L59 BLM11P600S CN2 INVERTER 1 2 3 4 5 6 7 8 L58 BLM11P600S C58 1u 25V 1 2 F1 3216FF 2A 1206 CN35 MIC CONN 1 2 5V USBGND USBGND USBGND USBGND USBGND USBP0 5 USBP0 5 C36 47p L57 BLM11P600S L17 BLM11P600S CN20 USB CONN 1 2 3 4 5 6 C239 47p C267 0 1u C230 1u S3 POLY SW_1812 L62 BLM21300S_080...

Page 13: ...or CN16 2 1 9 Speaker Jack CN12 USBGND USBGND MODEM 21 v60615 00 21 v60615 00 2KV 2KV C246 1000p 2KV_1808 C255 1000p 2KV_1808 CN22 MODEM CONN 1 2 L82 60uH_SBT_0260_DIP L83 60uH_SBT_0260_DIP CN19 MODEM PHONE 1 2 3 4 CN16 RJ45 TD 1 TD 2 RO 3 NC1 4 NC2 5 RO 6 NC3 7 NC4 8 GND 9 GND 10 ...

Page 14: ...UDGND 0 1u 0 1u 0 1u EXTSPKHP EXTSPKL EXTSPKR L31 BLM11P600S CN12 SPKR JACK 1 2 3 4 5 L35 BLM11P600S L34 BLM11P600S C242 C C234 C C548 C AUDGND R L L R CN3 R L SPKR CONN 1 2 3 4 L2 BLM11P600S L12 BLM11P600S L13 BLM11P600S L11 BLM11P600S C30 C C29 C C32 C C31 C VREFOUT AUDGND INT_MIC 8 CN13 MIC JACK 1 2 3 4 5 R208 2K R209 1K L10 BLM11P600S C27 680p L9 BLM11P600S ...

Page 15: ...54 CIRDY A15 20 CTRDY A22 53 CDEVSEL A21 50 CSTOP A20 49 CPAR A13 13 CPERR A14 14 CSERR WAIT 59 CREQ INPACK 60 CGNT WE 15 CINT IRQ 16 CBLOCK A19 48 CCLKRUN IO16 33 CRESET RESET 58 RFU R2_D2 32 RFU R2_D14 40 RFU R2_A18 47 CVS1 43 CVS2 57 CCD1 CD1 36 CCD2 CD2 67 CAUDIO BVD2 SPKR 62 CSTSCHG BVD1 RI 63 CC BE3 REG 61 CC BE2 A12 21 CC BE1 A8 12 CC BE0 CE1 7 69 70 71 72 73 74 75 76 V_HDD V_HDD HDDLED 16 ...

Page 16: ... SIDEDACK SIDED3 SIDED13 SIORDY SIDED2 SIDED14 SIDECS3 SIDED12 SIDEA0 SIDED5 SIDED11 SIDECS1 SIDED1 R49 10K CN23 CDROM CONN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 47 49 46 48 50 R62 470 R462 1K R463 100K R533 R V_FDD WDATA 14 TRK0 14 WGATE 14 WRPRT 14 3MODE 14 RDATA 14 STEP 14 HDSEL 14 MTR0 14 INDEX 14 DSKCHG 14...

Page 17: ...R LPTAFD LPTSTB CN17 PARALLEL CONN 13 25 12 24 11 23 10 22 9 21 8 20 7 19 6 18 5 17 4 16 3 15 2 14 1 26 27 COMDCD1 COMRTS1 COMDSR1 COMTXD1 COMDTR1 COMRXD1 COMCTS1 COMRI1 CN18 SERIAL CONN 5 9 4 8 3 7 2 6 1 10 11 5V USBGND USBGND USBGND USBGND USBGNDUSBGND PS2DATA KBDATA PS2CLK KBCLK C25 270p L7 BLM11A221S L6 BLM11A221S C24 270p CN14 PS2 CONN 1 2 3 4 5 6 C22 270p L5 BLM11A221S L4 BLM11A221S C23 270p...

Page 18: ...221S L4 BLM11A221S C23 270p S1 POLY SW_1812 C231 1u 1 2 L8 BLM11P600S SCANIN4 SCANOUT0 SCANOUT4 SCANOUT7 SCANOUT14 SCANOUT9 SCANOUT11 SCANOUT1 SCANIN5 SCANIN2 SCANIN7 SCANOUT5 SCANOUT8 SCANOUT12 SCANOUT15 SCANIN0 SCANOUT2 SCANIN6 SCANIN3 SCANOUT3 SCANOUT6 SCANOUT13 SCANOUT10 SCANIN1 CN8 INT KB CONN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5V 5V 5V KBVCC PS2DATA PAGE_UP PAGE_D...

Page 19: ...sed for more than four seconds a power button over ride event is generated and the system will be put into S5 Soft off state 2 2 2 Cover Lid Switch When LCD cover is closed this Lid switch is triggered and an SMI SCI is generated to put the system into Suspend to RAM or Suspend to Disk mode depending on the Cover Switch setting in the BIOS Setup menu 2 2 3 Quick Start Button When this button has b...

Page 20: ... 1 Top Side 2 3 2 Top Side BIOS K B conn CN11 T P conn SiS 630S CN5 Memory socket 1 Memory socket 2 CN10 FDD conn CN3 LID switch conn SPEAKER conn LEDs Power SW SW6 WWW switch SW 1 LCD connectors CN8 U17 CN31 CN2 O2 Micro U22 PC87570 ICC VPC PC87393 VJG U19 U14 ...

Page 21: ...17 CN18 CN15 CMOS Batt U 24 CPU SOCKET CN 29 C N 23 C N 2 6 CD ROM connector HDD connector C N 2 8 PCMCIA SLOT CN27 MODEM connector Battery connector LAN conn Printer conn COM 1 ext CRT conn PS 2 conn Modem conn DC IN I R MIC CN12 ext spkr CN13 CN 24 CPU FAN conn USB conn ...

Page 22: ...r 5 Troubleshooting Guidelines 340S8 Rev A Page 22 UNIWILL COMPUTER CORP No 24 Pei Yuan Rd Chung Li Industrial Park Chung Li City Taiwan R O C TEL 886 3 461 6000 FAX 886 3 461 6317 URL http www uniwill com tw ...

Page 23: ...00 U14 IC PC87393 TQFP 100 LPC SUPERI O 02 U50004 00 U18 IC ICS9248 146 SSOP48P CLK GEN 03 A92481 70 U19 IC PC 87570 K B AND POWER MANAGEMT 02 U60001 00 U20 IC TC7SH32FU SINGLE 2 INPUT 07 U81024 00 U21 IC MIC256A SO 14 9MICREL 08 U10032 00 U22 U23 IC LM358M SOP 8P NS 08 U00017 0U U25 IC 74LVC 244 TSSOP 20 07 U32097 00 U26 IC AME8800 DEFT SOT 89 2 5V 30 08 U10067 00 U27 IC LTC 1736CG 24PIN SSOP 08 ...

Page 24: ...C37 RESERVED A 35 AF4 RESERVED VTT AK16 RESERVED AERR AK24 RESERVED AK30 RESERVED AP0 AL11 RESERVED VTT AL13 RESERVED VTT AL21 RESERVED VTT AN11 RESERVED AP1 AN13 RESERVED VTT AN15 RESERVED VTT AN21 RESERVED RP AN23 RESERVED BINIT B36 RESERVED DEP5 C29 RESERVED DEP1 C31 RESERVED DEP0 C33 RESERVED VTT E23 RESERVED DEP6 E29 RESERVED DEP4 E31 RESERVED F10 RESERVED VTT G35 RESERVED G37 RESERVED L33 RE...

Page 25: ...CORE AB2 VCC_CORE AB34 VCC_CORE AD32 VCC_CORE AE5 VCC_CORE AF2 VCC_CORE AF34 VCC_CORE AH24 VCC_CORE AH32 VCC_CORE AH36 VCC_CORE AJ13 VCC_CORE AJ17 VCC_CORE AJ21 VCC_CORE AJ25 VCC_CORE AJ29 VCC_CORE AJ5 VCC_CORE AJ9 VCC_CORE AK2 VCC_CORE AK34 VCC_CORE AM12 VCC_CORE AM16 VCC_CORE AM20 VCC_CORE AM24 VCC_CORE AM28 VCC_CORE AM32 VCC_CORE AM4 VCC_CORE AM8 VCC_CORE B10 VCC_CORE B14 VCC_CORE B18 VCC_CORE ...

Page 26: ... 9 AG27 MA 8 AH28 MA 7 AB24 MA 6 AH27 MA 5 AD24 MA 4 AJ27 MA 3 AG26 MA 2 AH26 MA 1 AJ26 MA 0 AF25 CSA 2 AJ25 CSA 1 AH25 CSA 0 AG25 CSB 3 AA25 CSB 2 AE25 CSB 1 AE26 DQM 7 Y24 DQM 6 AE28 DQM 5 AF23 DQM 4 AG23 DQM 3 AD25 DQM 2 AE29 DQM 1 AJ24 DQM 0 AD22 WE AH23 SRAS AH24 SCAS AJ23 CKE E9 SDCLK AJ16 VSSQ P26 VSSQ B24 GTLREFA P29 CPUAVDD V27 MA 14 AB25 CSB 0 AE27 CSA 3 AF24 SDVADD AE19 CSA 4 AG24 CSA 5...

Page 27: ...H7 IDA12 AF7 IDA11 AH6 IDA10 AG6 IDA9 AE6 IDA8 AJ5 IDA7 AH5 IDA6 AE11 IDA5 AF6 IDA4 AD12 IDA3 AJ6 IDA2 AG7 IDA1 AE12 IDA0 AE8 IDB15 AJ12 AD7 M4 AD4 M2 AD5 M3 AD6 N5 AD10 L3 AD11 K1 AD12 K2 AD13 M5 AD14 K3 AD15 K4 AD16 L5 AD17 G1 AD18 G2 AD19 G3 AD20 G4 AD21 F1 AD22 K5 AD23 F2 AD24 F4 AD25 E1 AD26 E2 AD27 K6 AD28 E3 AD29 J4 AD30 E4 AD31 D1 AD9 N6 AD8 L2 IDB0 AE17 IDB1 AG12 IDB2 AF12 IDB3 AH11 IDB4 ...

Page 28: ...SSQ T13 VSSQ T12 VSSQ T11 VSSQ R13 VSSQ R12 VSSQ R11 VSSQ P13 VSSQ P12 VSSQ P11 VDDQ AA8 VDDQ AB8 VDDQ AA9 VDDQ AB9 VDDQ N8 VDDQ P8 VDDQ P9 VDDQ U8 VDDQ V8 VDDQ V9 VDDQ W8 VDDQ W9 VDDQ Y 8 VDDQ Y 9 GTLVTT H19 GTLVTT H20 GTLVTT H21 GTLVTT H22 GTLVTT J21 GTLVTT J22 GTLVTT K22 GTLVTT L22 GTLVTT M22 PVDD AB10 VSSD P16 VSSD P17 VSSD R16 VSSD R17 VSSD R18 VSSD R19 VSSD T16 VSSD T17 VSSD T18 VSSD T19 VSS...

Page 29: ...AAD5 AE4 AAD6 AE3 AAD7 AE2 AAD8 AE1 AAD9 AD5 AAD10 AD4 AAD11 AD1 AAD12 AC4 AAD13 AC3 AAD14 AC2 AAD15 AC5 AAD16 B5 AA4 AAD17 B2 Y5 AAD18 B3 Y4 AAD19 B0 Y3 AAD20 B1 Y2 AAD21 R1 Y1 AAD22 R2 W4 AAD23 R3 W3 AAD24 R4 V5 AAD25 R5 V4 AAD26 R6 V3 AAD27 R7 V2 AAD28 G2 V1 AAD29 G0 U5 AAD30G1 U4 AAD31 G3 W5 SBA0 BBLANK R3 SBA1 DDC2DAT R2 SBA2 DDC2CLK R1 SBA3 G7 T1 SBA4 G6 T4 SBA5 G5 T5 SBA6 G4 U1 SBA7 U2 AC B...

Page 30: ...STP SDRAM11 27 PCISTP SDRAM10 28 GNDSDR 29 SDRSTOP SDRAM9 30 PD SDRAM8 31 GNDSDR 32 SDRAM7 33 SDRAM6 34 VDDSDR 35 SDRAM5 36 SDRAM4 37 SDRAM3 38 GNDSDR 39 SDRAM2 40 SDRAM1 41 SDRAM0 42 VDDSDR 43 GNDCPU 44 CPUCS_C2 45 CPU_C1 46 CPU_C0 47 VDDCPU 48 3V 3V 5V 3V SDRAMSEL 17 I2CSDA 1 5 6 I2CSCL 1 5 6 0 ohm 10K 74HCT4066 TSSOP 14P 10K 10K DTC144EKA RAM_I2CSDA RAM_I2CSCL RAM_I2CSDA RAM_I2CSCL B_I2CSDA A_I...

Page 31: ... 40 Y1 39 Y1 38 Y2 34 Y2 35 SHUTN 27 NC 14 NC 43 CLKOUT 32 CLKOUT 33 PLLGND 28 U2 RTL8201 TXEN 2 TXC 7 TXD0 6 TXD1 5 TXD2 4 TXD3 3 MDC 25 MDIO 26 RXDV 22 RXD0 21 RXD1 20 RXD2 19 RXD3 18 RXC 16 COL 1 CRS 23 RXER 24 X1 46 X2 47 LED0 PHYA0 9 LED1 PHYA1 10 LED2 PHYA2 12 LED3 PHYA3 13 LED4 PHYA4 15 DVDD 8 DVDD 14 AVDD0 32 AVDD1 36 PLLVDD 48 DGND 11 DGND 17 AGND 29 AGND 35 AGND 45 RESETB 42 TPRX 31 TPRX...

Page 32: ...C2 22 LINE L 23 LINE R 24 VREF 27 VREFOUT 28 AFILT1 29 AFILT2 30 AFILT3 CAP1 31 CAP2 32 M VREF CAP3 33 M AFILT CAP4 34 LINEOUT L 35 LINEOUT R 36 MONO OUT 37 HPOUT L CAP11 39 HPOUT C CAP12 40 HPOUT R CAP13 41 HXAN CAP5 43 HXAP CAP6 44 TXAN CAP7 45 TXAP CAP8 46 RXAN CAP9 47 RXAP CAP10 48 U4 LM4835 R_IN 10 R_DOCK 9 B_IN 11 L_DOCK 13 L_IN 12 SHUTDOWN 2 MUTE 5 MODE 4 R_OUT 26 R_OUT 28 L_OUT 15 L_OUT 17...

Page 33: ...9 CAD0 76 CCLK 108 CFRAME 111 CIRDY 110 CTRDY 109 CDEVSEL 107 CSTOP 105 CPAR 101 CPERR 104 CSERR 133 CREQ 123 CGNT 106 CINT 132 CBLOCK 103 CCLKRUN 136 CRST 119 R2_D2 143 R2_D14 84 R2_A18 100 CVS1 131 CVS2 117 CCD1 75 CCD2 137 CAUDIO 134 CSTSCHG 135 CC BE3 125 CC BE2 112 CC BE1 99 CC BE0 88 AD31 3 AD30 4 AD29 5 AD28 7 AD27 8 AD26 9 AD25 10 AD24 11 AD23 15 AD22 16 AD21 17 AD20 19 AD19 23 AD18 24 AD1...

Page 34: ...INIT DIR 49 ERR HDSEL 51 AFD _DSTRB DENSEL 53 STB _WRITE 54 DCD1 55 DSR1 56 SIN1 57 RTS1 TEST 58 SOUT1 XCNF0 59 CTS1 60 DTR1 _BOUT1 BADDR 61 RI1 62 IRTX 70 IRRX1 69 IRRX2_IRSL0 68 IRSL1 67 IRSL3 PWUREQ 66 XD0 GPIO00 JOYABTN1 3 XD1 GPIO01 JOYBBTN1 2 XD2 GPIO02 JOYAY 1 XD3 GPIO03 JOYBY 100 XD4 GPIO04 JOYBX 99 XD5 GPIO05 JOYAX 98 XD6 GPIO06 JOYBBTN0 97 XD7 GPIO07 JOYABTN0 96 XWR XCNF1 4 XRD GPIO34 WD...

Page 35: ...KBSOUT7 49 KBSOUT8 48 KBSOUT9 47 KBSOUT10 42 KBSOUT11 41 KBSOUT12 40 KBSOUT13 39 KBSOUT14 38 KBSOUT15 37 IRQ1 156 IRQ8 155 IRQ11 154 IRQ12 153 PFAIL 79 HPWRON 165 VBAT 28 GND 160 GND 109 GND 66 GND 26 GND 24 VCC 23 VCC 67 VCC 108 VCC 161 AVCC 91 AVREF 80 AGND 92 HA0 166 HA1 167 HA2 168 HA3 169 HA4 170 HA5 171 HA6 172 HA7 173 HA8 174 HA9 3 HA10 4 HA11 5 HA12 6 HA13 7 HA14 8 HA15 9 HA16 PA3 10 HA17 ...

Page 36: ... O4 18 O5 19 O6 20 O7 21 VCC 32 VSS 16 A17 30 U3 GD75232 ROUT1 19 ROUT2 18 ROUT3 17 ROUT4 14 ROUT5 12 DIN1 16 DIN2 15 DIN3 13 RIN1 2 RIN2 3 RIN3 4 RIN4 7 RIN5 9 DOUT1 5 DOUT2 6 DOUT3 8 VCC 20 V 1 V 10 GND 11 U28 TL594 SOP16 1IN 1 1IN 2 FB 3 DTC 4 CT 5 RT 6 GND 7 C1 8 E1 9 E2 10 C2 11 VCC 12 OUT CTRL 13 REF 14 2IN 15 2IN 16 U34 TL594 SOP16 1IN 1 1IN 2 FB 3 DTC 4 CT 5 RT 6 GND 7 C1 8 E1 9 E2 10 C2 1...

Page 37: ... REF 16 U33 MB3878 INC2 1 OUTC2 2 INE2 3 INE2 4 FB2 5 VREF 6 FB1 7 INE1 8 INE1 9 OUTC1 10 OUTD 11 INC1 12 INC1 13 CTL 14 FB3 15 INE3 16 RT 17 VCC 18 VH 19 OUT 20 VCC O 21 CS 22 GND 23 INC2 24 SSOP 24 U27 LTC1736 Cosc 1 RUN SS 2 Ith 3 FCB 4 SGND 5 PGOOD 6 SENSE 7 SENSE 8 VFB 9 Vosense 10 B0 11 B1 12 B2 13 B3 14 B4 15 VIDVcc 16 EXTVcc 17 PGND 18 BG 19 INTVcc 20 Vin 21 SW 22 BOOST 23 TG 24 ...

Page 38: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 38 ...

Page 39: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 39 ...

Page 40: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 40 System Disassembly Procedure ...

Page 41: ...ne 2 Unfasten the one 1 screw on the CPU cover 3 Unfasten four 4 screws on the CPU fan heat sink assembly Please follow the sequence when unfastening When fastening you must start on 4 3 2 and 1 counter clockwise direction 4 Disconnect the cable CPU fan heat sink assembly from the mainboard 5 Gently press down the lever arm of the CPU socket and lift it up until the lever arm is in stand position ...

Page 42: ... Page 42 6 Make sure the CPU socket is in release position before you remove the CPU 7 Unfasten one 1 screw on the HDD cover 8 Unfasten two 2 screws on the HDD metal bracket 9 Pull out the HDD assembly and disconnect the HDD cable from the mainboard ...

Page 43: ...delines 340S8 Rev A Page 43 10 Use a small flat screwdriver insert to the K B lock to release the three lock 11 Gently lift the keyboard and disconnect the keyboard cable from the connector 12 Remove the keyboard shielding or plate ...

Page 44: ...and remove the RMA cover 14 Use both thumbs push in and remove the left and right hinge covers 15 Close the display panel press down the middle cover and then pull out to remove 16 Unfasten one screws of the CD ROM or DVD ROM drive 17 On the bottom case push out the CD ROM drive as shown in the photo ...

Page 45: ...cabinet as shown in the photo and gently lift to release the snap lock Do the same procedure on both side of the top cabinet 20 After releasing the snap lock on both side and palm rest Lift up to release and remove the top cabinet 21 Close the display panel and unfasten four 4 screws on both sides of the display hinges ...

Page 46: ...Rev A Page 46 22 Unfasten one 1 screw on the LCD cable and disconnect the two LCD cables from the mainboard connectors 23 Unfasten two 2 screws on the hinge frame as shown in the photo 24 Disconnect the FDD cable 25 Disconnect the Touchpad cable ...

Page 47: ... and separate it from the bottom case 27 At the bottom side of the mainboard unfasten two 2 screws on the modem card And disconnect the modem card from the mainboard 28 Unfasten the two 2 hexagonal screws of the modem card 29 On the bottom side of the mainboard unfasten four 4 screws on the mainboard shielding and peel off the aluminum foil near the I O port as shown in the picture 30 From the I O...

Page 48: ...Lift the mainboard and disconnect the speaker cable and LID switch cable 33 When replacing mainboard make sure to have all the insulation and thermal pads removed from the defective mainboard and transfer it to a good mainboard because sometimes the good mainboard doesn t have all the tapes and thermal pad as indicated in the photo ...

Page 49: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 49 34 Unfasten one 1 screw on the FDD assembly Lift to remove the FDD assembly form the bottom case ...

Page 50: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 50 Display Disassembly Procedure ...

Page 51: ...sp and remove the display front cover 2 Unfasten two 2 screws on the D A inverter card and disconnect the cables on both sides 3 Unfasten four 4 screws on the LCD display and unfasten four 4 screws on both side of the hinges Remove the LCD from the display cover Make sure to remember the LCD cable arrangement to avoid problem when assembling the LCD display ...

Page 52: ...ter 5 Troubleshooting Guidelines 340S8 Rev A Page 52 UNIWILL COMPUTER CORP No 24 Pei Yuan Rd Chung Li Industrial Park Chung Li City Taiwan R O C TEL 886 3 461 6000 FAX 886 3 461 8000 URL http uniwill com tw ...

Page 53: ...ncorrect 5 5 Memory test error 5 6 Keyboard test error 5 7 Touch pad test error 5 8 Diskette drive test error 5 9 Hard disk drive test error 5 10 CMOS test error 5 11 SIO port test error 5 12 PIO port test error 5 13 Audio failure 5 14 No power symptom 5 15 CDROM drive test error 5 16 Stopping in LCD screen while booting 5 17 PCMCIA Card Bus failure 5 18 IR Port cannot transfer data 5 19 Modem Fai...

Page 54: ...leok Replace monitor or LCD Display Ok Setup the display mode Remove all of I O device cables from M B except LCD or Monitor Display ok Replace motherboard Board level troubleshooting Check system clock and reset circuit No Yes Yes No No Yes Check SIS Chipset for any cold solder Re solder No Correct the I O device cables to the M B one at a time to find out which part is causing the problem Set up...

Page 55: ...est is passed VGA Controller Failure Try another good monitor or LCD module Replace faulty LCD or monitor Display OK Remove all of I O devices and cables from M B except LCD or Monitor Connect the I O device cables to the M B one per time to find out which part is causing the problem Display OK Replace Motherboard Board level troubleshooting Yes No Yes No Yes ...

Page 56: ... A Page 56 5 3 LCD no display or Invalid Picture Symptom The LCD shows nothing or abnormal picture but it is ok for external monitor LCD No Display Try another known good LCD module Display OK No Yes Replace each parts of LCD module cables and test ...

Page 57: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 57 ...

Page 58: ...om The CRT monitor shows nothing or abnormal color but it is ok for LCD Yes No Monitor No Display Try another known good monitor Replace faulty monitor Correct it Display Ok Setup Ok Replace motherboard Board level Troubleshooting Yes No Yes No Yes Check VGA port signal using oscilloscope Replace SIS 630 Chipset End ...

Page 59: ...age 59 5 5 Memory test error Memory test error Try another known good DRAM module Test OK Replace the faulty DRAM module Replace motherboard No Yes With External DRAM Module Installed Correct it Install External DRAM module and socket OK Yes No Yes No ...

Page 60: ...doesn t work Keyboard test error Correct it Is K B cable connected to M B properly Try another good keyboard KB Test Ok Replace the faulty keyboard Replace motherboard Board level troubleshooting Re soldering One of the following parts or signals on the other board may be defective use an oscilloscope to check 1 K B Controller PC87570 Check for cold solder No Yes No Yes No Yes ...

Page 61: ...Is Touch pad cable connected properly Try another known good touch pad module and cable Test Ok Replace the faulty parts Replace motherboard Board level troubleshooting Check KB controller PC87570 for cold solder Re solder No Yes No Yes No Yes Check one of the following parts or signals on the motherboard maybe defective use an oscilloscope and replace it 1 KB Controller PC87570 ...

Page 62: ...a from FDD to system Correct it Reboot OK Try another known good FDD module Reboot OK Replace motherboard Board level troubleshooting Check FDD connector Super I O controller PC87393 for cold solder Re solder No No Yes Yes No Yes Correct it 1 Try another known good boot diskette 2 Check setup for correct settings Diskette Drive test error ...

Page 63: ... drive test error Symptom Either an error message is shown or the drive motor spins non stop while reading data from or writing data to Hard disk Hard disk test error Replace the faulty parts Re boot ok Yes Try another working HDD Check BIOS HDD Setup OK Correct it Yes No ...

Page 64: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 64 5 10 CMOS test error ...

Page 65: ...harge the RTC battery 3 Turn off power for 1 hour then turn on again Re boot OK END Board level troubleshooting Replace motherboard Check CMOS RAM CMOS battery for cold solders Re solder 1 CMOS data lost or inaccurate system time data Yes Yes One of the following parts on the motherboard maybe defective replace the parts one a time and test after each replacement 1 CMOS RAM 2 CMOS battery No No ...

Page 66: ... it Correct it Board level troubleshooting Replace Motherboard Check SIO controller for cold solder Re solder One of the following parts on the motherboard maybe defective plug SIO loopback at SIO port and run SIO test program If error replace SIO controller No Yes Yes Yes No No 1 Check whether mouse or other I O device are properly installed including driver 2 Try another working mouse of I O dev...

Page 67: ...Chapter 5 Troubleshooting Guidelines 340S8 Rev A Page 67 ...

Page 68: ...les printer printer driver are installed properly 2 try another working printer and cable Correct it Re test OK Setup OK Correct it Board level troubleshooting Replace motherboard Check PIO controller for cold solder Re solder No Yes Yes Yes No No One of the following parts on the motherboard maybe defective plug PIO loopback at PIO port one a time and test if error replace PIO controller ...

Page 69: ...eck whether cables speakers audio drivers are installed properly 2 try another working speaker cable Correct it Re test ok Setup ok Replace motherboard Board level troubleshooting One of the following parts on the motherboard may be defective replace the audio controller chip Yes No No Yes No Correct it Check SIS 630 Chipset for cold Solder Re soldering Yes ...

Page 70: ...ymptom Symptom When the power button is pressed nothing happens power indicator is not light up Check DC DC Board Signal or replace each parts Correct it Press Power on button again Check system LED lit on Check Fuse on DC DC Board if open No Power Replace it Yes No Yes No ...

Page 71: ...OM drive Check drive is install OK Check cable Door is closed Correct it Correct it Re soldering Check one of the following parts or signal on the M B may be defective use an oscilloscope to check it CDROM Failure No Yes Yes Replace Motherboard Board Level Troubleshooting No Check SIS 630 Chipset and CDROM connector for cold solder Yes No ...

Page 72: ...Record LCD message to Board level Troubleshooting Make sure HDD is good Check BIOS setting Make sure CD ROM Is good Check BIOS Settings Re soldering No Yes No Yes No Yes Stop in LCD screen while booting Stop in LCD Screen while booting Check CPU SIS630 for cold soldering OK Check one of the following parts or signal on the M B may be defective use an oscilloscope to check it No Yes ...

Page 73: ...can t detect Re soldering PCMCIA card failure Insert PCMCIA card completely again make sure good connection Check drive controller install OK Correct it Board level Trouble shooting Check PCMCIA slot mounting in M B is cold soldering Check O2Micro OZ 6812 Chipset for cold soldering Re solder Replace O2Micro OZ6812 chipset No Yes Yes No Yes No ...

Page 74: ...IR failure no response Check driver install OK Check another one IR device is meet IrDa 1 0 Board level trouble shooting Check PC87393 for cold soldering Correct it Try another IR device Re soldering Replace Super I O PC97393 Chipset Check BIOS setup OK Correct it No Yes No Yes No Yes Yes No ...

Page 75: ...K Check IRQ COM port setting is OK AT command test modem function is OK Board level trouble shooting Replace another known good modem DAA module Correct it Correct it Re install Drivers Connect it No Yes No No Yes Check modem DAA board is connected properly and wiring with the phone jack No Yes ...

Page 76: ...340S8 Rev A Page 76 UNIWILL COMPUTER CORP No 24 Pei Yuan Rd Chung Li Industrial Park Chung Li City Taiwan R O C TEL 886 3 461 6000 FAX 886 3 461 6317 URL http www uniwill com tw ...

Page 77: ...D ROM disc PIO Mode 4 Average 3 1W Sleep 0 05W ATAPI Interface 6 5 BATTERY Li ION Vendor PANASONIC GS Battery type Li Ion 8 cells 4S2P Battery capacity 14 8V 3600mAH 47 36Whrs 1 1 1 Charge Voltage 16 8V 2 5 1 0 Charge temperature 0 45o C Discharge temperature 20 60o C End of Discharge 11V Cycle life 500 times Overcharge protection when battery voltage reach 17 2 0 2V Over discharge protection when...

Page 78: ...rt 3 window keys Key pitch 19mm Dimension 249mm x 100 85mm x 7 8 mm 6 8 MODEM FAX MODULE Modem chip SamrtLink HAMR5603 Si3014 Meet PC99 Window modem requirement Support AMR MDC slot V 90 56kbps AC 97 2 1 APM ACPI V 34bis 4 8Kbps to 33 6Kbps V 32 bis 4 8Kbps to 14 Kbps AT command set V 42 LAPM and MNP 2 4 error correction 5 data compression V 22 bis 50 bps to 2 4Kbps V 21 Bell 103 Bell 212 Fax Grou...

Page 79: ...340S8 Rev A Page 79 UNIWILL COMPUTER CORP No 24 Pei Yuan Rd Chung Li Indistrial Park Chung Li City Taiwan R O C TEL 886 3 461 6000 FAX 886 3 461 6317 URL http uniwill com tw ...

Page 80: ... 312935 00 TOP CABINET ID 2 ID 4 5 74 08U20400 T P 6 41 720120 06 SCREW M2 0 6 7 29 163402 00 FPC T P PAD 8 50 212904 00 ADHESIVE TAPE 9 40 102901 00 SPRING FOR K B 340 10 41 720120 04 M2 0 4 11 50 312903 10 TOP HOUSING MG 340 12 41 720120 03 M2 0 3 13 22 300513 10 SPK FG 36N081 14 50 352967 00 COVER HINGE R 340 15 50 352966 00 COVER HINGE FRAME 16 41 720120 03 M2 0 3 17 50 352969 00 COVER CABLE F...

Page 81: ...OR PCMCIA L 340 5 40 302913 00 BRACKET CDROM 340 6 TEAC 70 130104 00 QUANTA 70 130117 10 TORISAN 70 200010 00 QUANTA 70 200010 10 CD ROM DRIVE DVD ROM DRIVE 7 xxx HDD 8 50 212902 00 MYLAR HDD 340 9 40 U75071 00 PLATE HDD 340 10 41 760230 03 SCREW M3 0 3 11 41 720120 04 SCREW M2 0 4 12 50 U69064 20 DOOR HDD 340 13 41 720120 04 SCREW M2 0 4 14 29U6905B 00 CABLE HDD 340 15 RUBBER FOOT 340 16 50 U6906...

Page 82: ... U53600 03 BATTERY 20 MITSUMI 70 013144 UC TEAC 70 013144 U2 FDD 21 29 163403 00 FFC FDD 22 40 U69031 20 BRACKET FDD 340 23 41 720125 03 SCREW M2X0 45X8 7 4 LCD ASSEMBLY NO PART NUMBER DESCRIPTION 1 41 720525 06 SCREW M2 5 6 2 52 012919 00 RUBBER FOR DISPLAY T 340 3 40 U78021 00 BRACKET L FOR LCD ...

Page 83: ...01 00 CABLE FOR LCD INVERTER 11 14 1 76 030527 00 INVERTER FOR 12 x BRACKET R FOR LCD NO DESCRIPTION 13 50 212900 00 MYLAR FOR INVERTER 340 14 50 242912 10 HOOK LCD R 340 15 50 412913 00 KNOB LCD 340 16 ID 2 12 1 50 342982 00 13 3 50 342981 00 14 1 50 342981 00 ID 4 13 3 50 342999 00 14 1 50 342900 10 BACK CABINET 17 40 101603 00 SPRING LCD GE 6200 18 50 412913 00 KNOB LCD 340 19 50 242912 00 HOOK...

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