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MiTAC 8050D An error occurs when a USB I/O device is installed

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8050D N/B Maintenance

8.7 USB Port Test Error

An error occurs when a USB I/O device is installed.

USB Test Error

Check if the USB device is installed properly. (Including charge board.)

Test Yes

OK?

Replace another known good USB device.

Re-test Yes

OK?

		Document			Board-level
	Secret				Troubleshooting
					Troubleshooting
MiTac
Correct it			J706	C713	USBP1-
Confidential			J706	C713	USBP1-
	Repl ce		Check following parts and signals:
	Mo herboard
			Parts:		Signals:
			U715	L22	+5VS	USBOC0#
			U705	L708	USBP0+	+VCC_USB_0
			U701	R701	USBP0+	+VCC_USB_0
			U701	R701	USBP0-	+VCC_USB_1
			U712	C701	USBP0-	+VCC_USB_1
			U712	C701
			J701	R706	USBP1+	+VCC_USB_2
Replace			L701	C703	USBP2+
			L702	C709	USBP2+
			L702	C709
the faulty part			L2		USBP2-
			L5

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Contents

Page 1.Hardware Engineering Specification ………………………………………………………………… 1.1Introduce ……………………………………………………………………………………………… 1.2System Overview ……………………………………………………………………………………… 1.3System Hardware Parts ………………………………………………………………………………… 1.4Other Functions …………………………………………………………………………………….… 8. Trouble Shooting ……………………………………………………………………………………..… 8.1 No Power ……………………………………………………………………………………………… Battery Can not Be Charged …………………………………………………………………………… No Display ………………………………… ………………………………………………………… External Monitor No Display …………………………………………………………………………… Page Page Page Page 1.3.1Intel Banias Processors in Micro-FCPGAPackage 1.3.2 Clock Generator 1.3.3 Montara-GMEGMCH IGUI 3D Graphic DDR/SDR Chipset Page Features Processor/Host Bus Support Memory System System InterruptSecretDocument Display 1.3.4 I/O Controller Hub : INTEL 82801DBMSecret Introducing MOBILITY M10 SMARTSHADER™ 2.0 — Advanced Shader Technology MOOTHVISION™ 2.0 — Flexible Anti-Aliasingand Anisotropic Filtering High Performance Memory Support Dual Display Support VIDEO AccelerationConfidential Features Page Page 1.3.7AC’97 AUDIO SYSTEM: Advance Logic, Inc, ALC655 Page 1.3.8 MDC:PCTEL MODEM DAUGHTER CARD PCT2303W (ASKEY V1456VQL-P1) Features Standard Features 1.3.9.1Overview MiTac 1.3.9.2 Features Firmware Hub for Intel® 810, 810E, 815, 815E,815EP, 820, 840, 850 Chipsets Flexible Erase Capability Single 3.0-3.6VRead and Write Operations Superior Reliability Firmware Hub Hardware Interface Mode 1.3.11.1 64MB, 128MB, 256MB,MiTac512MB (x64) 200-PinDDR SDRAM SODIMM Page General Page Page 1.3.13 Keyboard System: Winbond W83L950D 1.4.1Hot Key Function Keys Combination Feature Meaning APM mode ACPI mode Three LED indicators at front side: Seven LED indicators: Battery Warning Battery Low State Battery Dead State 1.4.7 CMOS Battery 1.4.6 Fan power on/off management I/O Port Full on mode Doze Mode Standby mode Suspend to DRAM HDD & Video access 2.1.1Front View 2.1.2 Left-sideView 2.1.3 Right-sideView 2.1.4 Rear View 2.1.5 Bottom View 2.1.6 Top-openView Page 2.2.1 Battery Pack Disassembly Reassembly 2.2.2 Keyboard 2.2.3 CPU Page 2.2.4 HDD Module Page 2.2.5 CD/DVD-ROMDrive 2.2.6 Wireless Card 2.2.7 Modem Card 2.2.8 DDR-SDRAM 2.2.9 LCD ASSY Page Page Page 2.2.10 LCD Panel Page 2.2.11 Inverter Board 2.2.12 System Board 2.2.13 Touch Pad Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page U15 Page 7.2Diagnostic Tool for Mini PCI Slot : Following is a list of error codes in sequent display on the debug board Page Page 8.1 No Power 8.9 CD-ROMDriver Test Error Battery Can not Be Charged Audio Failure No Display NOTE: Page Page Page Page There are problems in charging the battery Page known-good ****** System Clock Check ****** System Reset Check ****** VGA Controller Checking ****** Back Light & Cover Switch Checking CPU Core does not exist Page Page Either on board or extend SDRAM is failure or system hangs up Page Page Page An error occurs when a USB I/O device is installed Page Page Page Page Page There is trouble with the sound from speaker or completely no sound Page Page An error occurs when a LAN device is installed Page An error occurs when run the modem Page Page An error occurs when a PC card device is installed Page Page An error occurs when a IEEE 1394 device is installed Page Page Page Page Page Page Page Page Page Page Page Page Page Page 8050D R01 CPU-BANIAS(1/2) CPU-BANIAS(2/2) NB-MONTARA-GME(1/2) Page Page Page ATI M10-P(2/4) ATI M10-P(3/4) VRAM CLOCK SYNTHERIZER Display (CRT / LCD) Page SOUTHBRIDGE-ICH4-M(2/2)