MiTAC 8050QMA 8.1 No Power-5

109

80

8050QMA

50QMA N/B Maintenance

N/B Maintenance

When the power button is pressed, nothing happens, no fan activity is heard and power indicator is not light up.

Charge

ADINP

PD507

SSA34

P32

PL508

33µH

PQ8

2N7002

G

S

D

PQ7

DTA144WK

PC29

0.01µ VCC

OUTPUTCTRL

REF 2IN- DTC 4

FEEDBACK

PR32

100K

3

1IN-

2IN+ 16

2

PU3

PWM

TL594C

C1,C2

PD4

BAS32L

PR45

4.7K

PR46

4.7K

PQ11

MMBT2222A

8,11

PR59

100K

PD506

SSA34

4

G

S

D

2

3

1

6

7

8

5

PQ503

AO4407

CHARGING

From H8 U13

2IN+

12

13

14

5

6

CT

RT

PR34

7.5K

PC21

1000P

PC22

0.01µ

PC30

1µ

PC23

0.1µ

P32

PR35

10K

PC25

0.1µ

15

REF

PR25

124K

PJS1

SHORT-SMT3

P23

GND GNDB

PR11

.02

GND

H8_I_CTRL

From U13

P23

PR36

590K

PR37

100K

1.25V

6

PR33

80.6K

PC24

0.1µ

+

_

+VDD3

5

PU4B

LMV393M

7

84

+DVMAIN

PR38

1K

PQ6

SCK431CSK-5

+VDD3

PC33

0.01µ BATT_DEAD#

To H8 U13

P23

8.1 No Power-5

PF501

TR/3216FF-3A

PL506

BEAD_120Z/100M

PC525

0.01µ

PC524

0.01µ

PC533

10µ

BATT

PD509

BZV55C15V

PC534

10µ

Q43

DDTC144TCA

PR47

0

PL507

3.0µH

PC535

10µ

PC536

0.01µ

PR28

287K

PQ5

2N7002

CHARGING

From H8 U510 P23

PR27

20K

PC17

0.1µ

PR24

13.7K

PR136

976K

PR135

2M

PJOL1

OPEN-SMT4

PJOH1

OPEN-SMT4

2IN+

12.65V

PR26

0

PR12

2.49K

BATT_DEAD

PC18

0.01µ

MiTac Secret

Confidential Document

Contents

Main Contents 1. Hardware Engineering Specification 2. System View and Disassembly ... 3. Definition & Location of Connectors / Switches .. 4. Definition & Location of Major Components .. Contents 5. Pin Description of Major Component .. 8. Trouble Shooting . Page Page Page Page 80 8050QMA 1.2 System Hardware Parts Page 1.2.3 The Mobile Intel 915PM Express Chipset Page Page 1.2.4 I/O Controller Hub : Intel ICH6-M 1.2.5 CardBus: CB712 Page Page 1.2.6 AC97 Audio System: Advance Logic, Inc, ALC655 Page 1.2.7 MDC: Pctel Modem Daughter Card PCT2303W (Askey V1456VQL-P1) Page Page 1.2.8 IEEE1394 VT6301S 1.2.9 System Flash Memory (BIOS) 1.2.10 Memory System 1.2.10.1 256MB, 512MB, 1GB (x64) 200-Pin DDR2 SDRAM SODIMMs Page 1.2.11 LAN PHY: RTL8100C(L) Page 1.2.12 Keyboard System: Winbond W83L950D 1.2.13 Hard Disk Drive Page Page Page Page Page Page Page Page Page Page Page 1.5 Appendix 1: Intel ICH6-M GPIO Definitions (1) Pin name Current Define Power plane Page 1.6 Appendix 2: W83L950D KBC Pins Definitions (1) Port Pin Function Impleme nt Port Pin Function Impleme nt 1.6 Appendix 2: W83L950D KBC Pins Definitions (2) 1.7 Appendix 3: 8050QMA Product Spec (1) Item Description - DVD Dual - DVD Super Multi drive 1.7 Appendix 3: 8050QMA Product Spec (2) Item Description - Build in microphone Video 1.7 Appendix 3: 8050QMA Product Spec (3) 50QMA N/B Maintenance 2.1.2 Left-side View 2.1 System View 2.1.1 Front View 2. System View and Disassembly Page 2.1.5 Bottom View 2.1.6 Top-open View Page 2.3 System Disassembly Page Page Page Page Page Page Page Page MiTac Secret Confidential Document Page Page Page Page Page Page Page Page Page Page Page 3. Definition & Location of Connectors / Switches 3.1 Mother Board (Side A) 3. Definition & Location of Connectors / Switches 3.2 Mother Board (Side B) 4. Definition & Location of Major Components 4.1 Mother Board (Side A) 4. Definition & Location of Major Components 4.2 Mother Board (Side B) U517 : Audio CODEC(ALC655) 5.1 Intel 915PM North Bridge(1) Host Interface Signals 5. Pin Descriptions of Major Components 80 8050QMA 5.1 Intel 915PM North Bridge(2) Host Interface Signals (Continued) Host Interface Reference and Compensation 5.1 Intel 915PM North Bridge(3) DDR / DDR2 SDRAM Channel A Interface DDR / DDR2 SDRAM Channel A Interface (Continued) PCI Express Based Graphics Interface Signals 5.1 Intel 915PM North Bridge(4) DDR / DDR2 SDRAM Channel B Interface DDR / DDR2 SDRAM Channel B Interface (Continued) DMI 5.1 Intel 915PM North Bridge(5) DDR / DDR2 Common Signals DDR / DDR2 Common Signals (Continued) 5.1 Intel 915PM North Bridge(6) CRT DAC Signals Analog TV-out Signals 5.1 Intel 915PM North Bridge(7) LVDS Signals DDR SDRAM Reference and Compensation Display Data Channel (DDC) and GMBUS Support 5.1 Intel 915PM North Bridge(8) Serial DVO Interface. Serial DVO Interface (Continued) 5.1 Intel 915PM North Bridge(9) PLL Signals Note: Reset and Miscellaneous Signals 5.1 Intel 915PM North Bridge(10) Power and Ground Power and Ground (Continued) 5.2 Intel ICH6-M South Bridge(1) PCI Interface Signals PCI Interface Signals (Continued) 5.2 Intel ICH6-M South Bridge(2) PCI Interface Signals (Continued) Serial ATA Interface Signals 5.2 Intel ICH6-M South Bridge(3) Serial ATA Interface Signals (Continued) LAN Connect Interface Signals Other Clocks Interrupt Signals 5.2 Intel ICH6-M South Bridge(4) IDE Interface Signals IDE Interface Signals (Continued) System Management Interface Signals SM Bus Interface Signals 5.2 Intel ICH6-M South Bridge(5) USB Interface Signals Miscellaneous Sign als EEPROM Interface Signals 5.2 Intel ICH6-M South Bridge(6) Power Management Interface Signals Power Management Interface Signals (Continued) 5.2 Intel ICH6-M South Bridge(7) Processor Interface Signals Processor Interface Signals (Continued) 5.2 Intel ICH6-M South Bridge(8) General Purpose I/O Signals 1,2 General Purpose I/O Signals 1,2 (Continued) 5.2 Intel ICH6-M South Bridge(9) Power and Ground Signals AC 97/Intel High Definition Audio Link Signals Firmware Hub Interface Signals Name Type Description FWH[3:0] / LAD[3:0] 5.2 Intel ICH6-M South Bridge(10) Functional Strap Definitions 1 Functional Strap Definitions 1 (Continued) Real Time Clock Interface 98 6. System Block Diagram FSB U711 Intel CPU Dothan U710 North Bridge 915PM U715 Card Bus CB712 U709 South Bridge ICH6-M Page Page 7.3 Error Codes-1 Following is a list of error codes in sequent display on the MINI PCI debug board. 7.3 Error Codes-2 Following is a list of error codes in sequent display on the MINI PCI debug board. Page *1: No Power Definition *2: No Display Definition Keyword: 8.1 No Power-1 106 Main Voltage Map PJ701 8.1 No Power-2 J703 Main Voltage Map 107 8.1 No Power-3 NOTE : 8.1 No Power-4 +PWR_VDDIN +VDD3 PJ701 POWER IN +PWR_VDDIN 8.1 No Power-5 BATT 110 Discharge Battery Connector 8.1 No Power-6 +VDD3S Power Controller 111 South Bridge 8.1 No Power-7 AO4419 PU12 SC486 PU2 LTC3728L U21 IMP811 8.2 No Display-1 ****** System Clock Check ****** 113 +VDD3S SST49LF004A 8.2 No Display-2 U711 CPU DOTHAN P U7 Clock Generator ICS954226 P 8.2 No Display-3 South Bridge P U711 CPU Dothan U20 MAX809 8.3 VGA Controller Test Error LCD No Display-1 There is no display or picture abnormal on LCD although power-on-self-test is passed. 116 8.3 VGA Controller Test Error LCD No Display-2 MXM_Connector +DVMAIN +VDD3S Inverter 8.4 External Monitor No Display-1 There is no display or picture abnormal on CRT monitor, but it is OK for LCD. 118 8.4 External Monitor No Display-2 External DVIConnector There is no display or picture abnormal on CRT monitor, but it is OK for LCD. J702 U2 SN74LVC2G125 8.5 Memory Test Error-1 Extend DDRAM is failure or system hangs up. 120 8.5 Memory Test Error-2 Extend DDRAM is failure or system hangs up. +0.9VS J713 DDR SODIMM +DDR2_VREF 8.6 Keyboard (K/B) Touch-Pad (T/P) Test Error-1 Error message of keyboard or touch-pad failure is shown or any key does not work. 122 +VDD3 Touch-Pad 8.6 Keyboard (K/B) Touch-Pad (T/P) Test Error-2 Error message of keyboard or touch-pad failure is shown or any key does not work. SYSTEM J5 +KBC_CPUCORE 8.7 Hard Disk Drive Test Error-1 124 +1.8VS_HDD 8.7 Hard Disk Drive Test Error-2 J715 PATA HDD Connector U724 88SA8040 +5VS_HDD 8.8 CD-ROM Drive Test Error-1 An error message is shown when reading data from CD-ROM drive. 8.8 CD-ROM Drive Test Error-2 An error message is shown when reading data from CD-ROM drive. +5VS_CDROM CD-ROM Connector 8.9 USB Test Error-1 An error occurs when a USB I/O device is installed. 128 8.9 USB Test Error-2 USB Port An error occurs when a USB I/O device is installed. U501 RT9701-CB J701 8.10 Audio Test Error-1 130 8.10 Audio Test Error-2 (Audio In) External MIC Line In Jack PC14510GHK U517 Audio Codec ALC655 8.10 Audio Test Error-3 (Audio Out) LINE OUT J509 U19 Audio Amplifier TPA0212 J7 8.11 LAN Test Error-1 An error occurs when a LAN device is installed. 133 P15 P15 U507 NS692408 8.11 LAN Test Error-2 An error occurs when a LAN device is installed. LAN Controller RTL8100CL U511 93C46 +AVDDL +AVDDH +DVDD 8.12 PC Card Socket Test Error-1 An error occurs when a PC card device is installed. 135 8.12 PC Card Socket Test Error-2 CARD_VCC P Card Bus Socket An error occurs when a PC card device is installed. Page SERVICE MANUAL FOR 8050QMA