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MiTAC 7521 PLUS/N service manual Usb Connector

Models: 7521 PLUS/N

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USB CONNECTOR

1

2

3

4

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6

7

8

A

B

C

USB CONNECTOR

+5V
F502							L2	0805C				USB_B1
1	2					1			2			USB_B1
MINISMDC110			1	1	C506 BEAD_120Z/100M						1	C14
MINISMDC110			R20		C506 BEAD_120Z/100M							C14
1.1A/6V-POLY-SW			R20		10U							1000P
			100K		1210							0603
			0603	2	10V						2
			2
6 USB_OC0#					GND							USB_GND
					GND							USB_GND
			1
			R19
			560K
			0603
			2
			GND
6	D/USBP0-											USB_B2
6	D/USBP0-
									4	L12		3
												PLP3216S
									1			2
6	D/USBP0+											USB_B3
6	D/USBP0+
					1		1
						R142		R143
						15K		15K
						0603		0603
					2		2
					GND
+5V
	F503							L6	0805C			USB_A1
	1	2					1				2	USB_A1
MINISMDC110			1		1	C507	BEAD_120Z/100M					1
MINISMDC110			R22			C507	BEAD_120Z/100M					C25
1.1A/6V-POLY-SW			R22			10U						1000P
			100K			1210						0603
			0603		2	10V						2
			2
6 USB_OC1#					GND							USB_GND
					GND							USB_GND
			1
			R23
			560K									6	D/USBP1-
			0603									6	D/USBP1-
			0603
			2
			GND
												6	D/USBP1+

L53 0603

USB_B1

J508

USB_A1

B1

B1

A1

A1

USB_B2

B2

A2

USB_A2

J1

B2

A2

L9

USB_B3

B3

A3

USB_A3

1

B3

A3

5

ENABKL_VGA

1

B4

A4

+5V

1

2

2

B4

A4

2

3

BEAD_120Z/100M

3

GND1

4

GND1

20

BLADJ

4

GND2

0805C

5

GND2

5

A

2

2

2

GND3

2

2

2

6

GND3

6

GND4

GND4

DF13-6P-1.25V

4PX2/FM

1

C23

1

C30

1

C28

1

C31

JO537 JO538 JO539

BERG

JO540 JO541 JO542

220P

1000P

1000P

220P

72309-XX4XX

2

0603B

2

0603B

2

0603B

2

0603B

USB-BERG-72309

1

1

1

L504

1

1

1

1

2

BEAD_600Z/100M

0603B

GND

1

L511

2

GND

GND

BEAD_600Z/100M

0603B

USB_GND

GND

U3

SCROLL_LOCK#

20

LED_DATA

1

A

QA

3

SCROLL_LOCK# 12

2

4

NUM_LOCK#

B

QB

NUM_LOCK#

12

5

CAP_LOCK#

QC

CAP_LOCK#

12

6

QD

AC_POWER#

10

AC_POWER#

24

QE

8

11

BATT_POWER#

20

LED_CLK

CLK

QF

12

BATT_R#

BATT_R#

24

QG

H8_RESET#

9

13

BATT_G#

+S3V

20,24

H8_RESET#

CLR

QH

BATT_G#

24

7

GND

VCC

14

VDD5

1

BATT_LED#

BATT_LED# 24

74VHC164

1

GND

TSSOP14

C43

R100

0.1U

B

10K

0603B

0603

CLR

CLK

A B

QA

QB

QC ... QH

2

2

L

X

X

X

L

L

L ... L

GND

3

6

ACPILED

2

R1

Q9

H

L

X

X

QA

QB

QC ... QH

1DTC144TKA

H

^

H

H

H

QAn

QBn...QGn

SOT23AN_1

H

^

L

X

L

QAn

QBn...QGn

H

^

X

L

L

QAn

QBn...QGn

BATT_POWER#

USB_A2

4

L8

3

KO15

20

KO14

20

PLP3216S

KO13

20

1

2

KO12

20

KO11

20

USB_A3

KO10

20

KO9

20

KO8

20

1

1

KO7

20

R141

R140

KO6

20

KO5

20

15K

15K

KO4

20

0603

0603

KO3

20

C

2

2

KO2

20

KO1

20

KI7

20

KI6

20

KI5

20

GND

KI4

20

KI3

20

KI2

20

KI1

20

KI0

20

KO0

20

D

20 H8/T_CLK

20 H8/T_DATA

24TP_L

24TP_R

	1		2
	BEAD_130Z/100M				1	C270
						C270
						47P
						0603
					2	10%
		L54	0603			GND
	1		2
	BEAD_130Z/100M				1	C271
						C271
						47P
						0603
					2	10%
						GND
			1	R201	2
				0/NA	0603B_DFS
			1	R198	2
				0/NA	0603B_DFS
1	C251	1	C248
	C251		C248
	47P		47P
	0603		0603
2	10%	2	10%

																											KBD_US/JP# 6,20,22
+5v
			2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
1
L55			JO32	JO24	JO23	JO16	JO22	JO12	JO20	JO11	JO19	JO10	JO18	JO9	JO21	JO31	JO8	JO30	JO15	JO29	JO14	JO28	JO13	JO27	JO26	JO25	JO17
BEAD_120Z/100M
0805C
			1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
2
		1	C262
	J515		C262
	J515		0.1U
			0.1U
12	12		0603
11	12	2	50V
11	11	2	50V
10	11
10	10			GND
9	10
9	9
8	9
8	8
7	8
7	7		GND
6	7
6	6
5	6																										D
5	5																										D
4	5
4	4
3	4
3	3
2	3
2	2
1	2
1	1
	1
	FPC/FFC-12P/0.5MM
GND	6239-012-001-800
	291000151204
																						Title				MITAC INTERNATIONAL CORP.
																						Title

GND

1

2

						7521 plus

					Size	Document Number						Rev
					C	SD411670000002						02

					Date:	Tuesday, May 08, 2001		Sheet	21	of	30
3	4	5	6	7					8

Image 165

MiTAC 7521 PLUS/N service manual Usb Connector

Contents

TESTING TECHNOLOGY DEPARTMENT // TSSCTSSC SERVICE MANUAL & TROUBLESHOOTINGGG GUIDEGUIDEGUIDE FORFORFOR7521 Plus/N BY： Richard WangCONTENTS 7521Plus / N N/B MAINTENANCE7521Plus / N N/B MAINTENANCE CONTENTS11. 7521 Plus/N Schematics 1. Hardware Engineering Specification 1.1 Introduction7521Plus / N N/B MAINTENANCE 1.2 Hardware System 1.2.1 System parts7521Plus / N N/B MAINTENANCE 1.2.2 CPU MODULE 7521Plus / N N/B MAINTENANCE1.2.3 Synthesizer 1.2.4 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGPSiS630S Features 7521Plus / N N/B MAINTENANCEIntegrated DRAM Controller 7521Plus / N N/B MAINTENANCE7521Plus / N N/B MAINTENANCE Fast PCI IDE Master/Slave ControllerVirtual PCI-to-PCI Bridge Supports High Quality Dithering Supports Bump Mapping 7521Plus / N N/B MAINTENANCEBuilt-In 64x64x2 Bit-Mapped Hardware Cursor 7521Plus / N N/B MAINTENANCEBuilt-in Reference Voltage Generator and Monitor Sense Circuit 7521Plus / N N/B MAINTENANCEAdvanced PCI H/W Audio & Modem Advanced Power Management 7521Plus / N N/B MAINTENANCELow Pin Count Interface Integrated DMA ControllerIntegrated Interrupt Controller 7521Plus / N N/B MAINTENANCEThree 8254 Compatible Programmable 16-bits counters Integrated Keyboard ControllerNAND Tree for Ball Connectivity Testing 672-Balls BGA Package 7521Plus / N N/B MAINTENANCEUniversal Serial Bus Host Controller I²C Bus/SMBus Series Interface1.2.5 Super IO NS PC 97338VJG 7521Plus / N N/B MAINTENANCE1.2.6 PC CARD interface controller TI1225 7521Plus / N N/B MAINTENANCE1.2.7 DUAL-SLOT PC CARD POWER INTERFACE SWITCH TPS2206 7521Plus / N N/B MAINTENANCE1.2.8 Keyboard system H8 3434F universal keyboard controller Memory16-bit free-running timer 7521Plus / N N/B MAINTENANCE8-bit timer 2 channels PWM timer 2 channelsPower-down modes 7521Plus / N N/B MAINTENANCECover switch Battery charging control Smart Battery monitoring Fan control and LED indicator serial interface 100pin TQFP7521Plus / N N/B MAINTENANCE 1.2.9 System BIOS1.2.9.1 System BIOS and Software Features Overview 1.2.9.2 BIOS Setup Feature Introduction 7521Plus / N N/B MAINTENANCE1.2.10 POWER MANAGEMENT 7521Plus / N N/B MAINTENANCEACPI Power States Summary of Global Power StatesSummary of Device Power Sates 7521Plus / N N/B MAINTENANCESystem States 1. Working S0 2.Sleeping State S37521Plus / N N/B MAINTENANCE 3.Hibernation S44.Soft Off State S5 7521Plus / N N/B MAINTENANCE Component Level Power Management Matrix5.Mechanical Off Power State 1.Full Power 7521Plus / N N/B MAINTENANCEAPM Concept 2. Idle4.Suspend 7521Plus / N N/B MAINTENANCE7521Plus / N N/B MAINTENANCE Component Level Power Management Matrix5. Off 1.2.11 Memory System 7521Plus / N N/B MAINTENANCE1.2.12 Interface 7521Plus / N N/B MAINTENANCE1.2.13 Audio System AC’97 CODEC CS4299 7521Plus / N N/B MAINTENANCE1.2.14 IR MODULE HSDL-3600#007 7521Plus / N N/B MAINTENANCE7521Plus / N N/B MAINTENANCE SiS900 Features 7521Plus / N N/B MAINTENANCE7521Plus / N N/B MAINTENANCE Additional featuresSupports PC97, PC98, and Net PC requirements - Green PC compatible 7521Plus / N N/B MAINTENANCE CH7005 Features1.2.16 CH7005C Digital PC to TV Encoder 1.3 Special Feature Function 7521Plus / N N/B MAINTENANCE1.3.1 Hot Key Function 1.3.2 Easy Start Button function 7521Plus / N N/B MAINTENANCE 1.3.3 Flash ROM BIOS1.3.4 LED Indicators 1.4 SMM and System BIOS 7521Plus / N N/B MAINTENANCE1.3.5 COM port assignment HDD & Video access 7521Plus / N N/B MAINTENANCEBattery Warning Suspend to DRAMCover Switch 7521Plus / N N/B MAINTENANCEBattery Warning State Battery Low State7521Plus / N N/B MAINTENANCE 1.5 Peripheral ComponentsLCD Panel Hard Disk Drive7521Plus / N N/B MAINTENANCE KeyboardFloppy Disk Drive 7521Plus / N N/B MAINTENANCE Touch Pad24X CD-ROM Drive 7521Plus / N N/B MAINTENANCE DVD-ROM driveCD-R/RW drive LED Indicators 7521Plus / N N/B MAINTENANCECMOS Battery IO port7521Plus / N N/B MAINTENANCE Serial InterfacePCMCIA Socket ‰ Dimension 25mmx25mmx10mm±0.5mm 7521Plus / N N/B MAINTENANCE‰ Operating temperature -10 - +70 degree C ‰ Weight 7g ‰ Rated power 0.6 W ‰ Static pressure 0.09 inch-H2O1.6 Appendix 1 GPIO definitions 7521Plus / N N/B MAINTENANCEGPI DEFINITIONS 7521Plus / N N/B MAINTENANCE Note 3. CPU & SDRAM Frequency setting tableNote 1. LCD ID 2.0 Tools introduction 2 System View and Disassembly7521Plus / N N/B MAINTENANCE 1.Minus screw driver with bit size 3mm for CPU assembly & disassembly7521Plus / N N/B MAINTENANCE 2.1 System View2 System View and Disassembly 2.1.1 Front Viewn Battery Pack o CD-ROM/DVD-ROM Drive p IR Port 7521Plus / N N/B MAINTENANCEn Power Connector o PS/2 Port s RJ-45 Connector t VGA Portn CPU Cover o Modem Card Cover p FDD/HDD Module q Battery Pack 7521Plus / N N/B MAINTENANCE2.1.5 Bottom View 2.1.6 Top-Open View7521Plus / N N/B MAINTENANCE 2.2 System DisassemblyModular Components NOTEBOOK LCD Assembly Components 2.2.1 Battery Pack 2.2.2 CPU 2.2.3 Modem Card 2.2.4 FDD/HDD Module7521Plus / N N/B MAINTENANCE 2.2.1 Battery Pack DisassemblyReassembly 2.2.2 CPU Disassembly 7521Plus / N N/B MAINTENANCE3. Replace the CPU compartment cover and secure with two screws 7521Plus / N N/B MAINTENANCE2.2.3 Modem Card Disassembly 7521Plus / N N/B MAINTENANCE3. Replace the compartment cover and secure with one screw 7521Plus / N N/B MAINTENANCE2.2.4 FDD/HDD Module Disassembly 7521Plus / N N/B MAINTENANCE3. To take the hard disk drive apart, remove two screws of the hard disk. Then lift the hard disk up and unplug the connector to remove it. figure 7521Plus / N N/B MAINTENANCE2.2.5 CD-ROM Drive Disassembly 7521Plus / N N/B MAINTENANCE6. Hold the CD-ROM drive and slide it outward carefully. figure 7521Plus / N N/B MAINTENANCE1. Open the top cover 7521Plus / N N/B MAINTENANCE1. Remove the keyboard to access the SO-DIMM sockets. See section 2.2.6 Disassembly 7521Plus / N N/B MAINTENANCE2.2.8 LCD Assembly Disassembly 7521Plus / N N/B MAINTENANCE7521Plus / N N/B MAINTENANCE 2. Reconnect the LCD cable connectors to the system board3. Replace the two hinge covers 4. Replace the Easy Start panel 1. Remove the LCD assembly. See section 2.2.8 Disassembly 7521Plus / N N/B MAINTENANCE1. Fit the inverter board back into place and secure with two screws 7521Plus / N N/B MAINTENANCE2.2.11 System Board Disassembly 7521Plus / N N/B MAINTENANCE7. Lift up the speaker assembly and disconnect the cable. figure 7521Plus / N N/B MAINTENANCE8. Remove four screws to take the recharge board apart. figure 7521Plus / N N/B MAINTENANCE6. Replace the base unit frame and secure with twelve screws 7521Plus / N N/B MAINTENANCE1. Remove the system board. See section 2.2.11 Disassembly 7521Plus / N N/B MAINTENANCE3.1 Mother Board-A 3. Definition & Location Of Connectors / Switches7521Plus / N N/B MAINTENANCE J1 Inverter BD CONN J2 LCD panel LVDS connector7521Plus / N N/B MAINTENANCE 3.2 Mother Board Switch Table3. Definition & Location Of Connectors / Switches SW3. CPU & SDRAM Frequency setting table7521Plus / N N/B MAINTENANCE 3.3 Mother Board-B3. Definition & Location Of Connectors / Switches PJ501 Power jack AC adapter7521Plus / N N/B MAINTENANCE 3.4 Daughter Board3. Definition & Location Of Connectors / Switches J1 RJ-11 phone jack for internal modem J23 MDC jump wire connector7521Plus / N N/B MAINTENANCE 3.5 Charger Board3. Definition & Location Of Connectors / Switches J1Charger & Touch-Pad connector to M/B. PJ4Battery pack connector3.7 Easy Start Button Board Easy Start Button Boardside A 3.6 IQSB BoardEasy Start Button Boardside B 7521Plus / N N/B MAINTENANCE4.1 Main Board Side A 4. Definition & Location Of Major Components7521Plus / N N/B MAINTENANCE U13 TPS2206 PCcard Power switch matrix7521Plus / N N/B MAINTENANCE 4.2 Main Board SIDE B4. Definition & Location Of Major Components U502 PH163112 LAN Controller U503 Socket 370 CPU5.1 Pentium III/Celeron FC-PGA2 CPU 5. Pin Descriptions Of Major Components7521Plus / N N/B MAINTENANCE Alphabetical Signal ReferenceAlphabetical Signal Reference 7521Plus / N N/B MAINTENANCESignal Name Signal NameAlphabetical Signal Reference 7521Plus / N N/B MAINTENANCESignal Name Signal DescriptionAlphabetical Signal Reference 7521Plus / N N/B MAINTENANCEPWRGOOD Relationship at Power On PWRGOOD Relationship at Power OnPWRGOOD Relationship at Power On 7521Plus / N N/B MAINTENANCESignal Name Signal DescriptionPWRGOOD Relationship at Power On 7521Plus / N N/B MAINTENANCESignal Name Signal Description7521Plus / N N/B MAINTENANCE 5.2 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGP Single ChipsetPower PowerPower 7521Plus / N N/B MAINTENANCE5. Pin Descriptions Of Major Components 5.2 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGP Single ChipsetPower 7521Plus / N N/B MAINTENANCE5. Pin Descriptions Of Major Components 5.2 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGP Single ChipsetPower management Interface 7521Plus / N N/B MAINTENANCEPower 5. Pin Descriptions Of Major ComponentsPower management Interface 7521Plus / N N/B MAINTENANCE5. Pin Descriptions Of Major Components 5.2 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGP Single Chipset5. Pin Descriptions Of Major Components 7521Plus / N N/B MAINTENANCE5.2 SiS630S Slot 1/Socket 370 2D/3D Ultra-AGP Single Chipset RTC InterfacePower andGroundSignals 7521Plus / N N/B MAINTENANCELegacy I/o and Miscellaneous Signals Power6. System Block Diagram 7521Plus / N N/B MAINTENANCEU2 SH5 7521Plus / N N/B MAINTENANCE 7. Maintenance Diagnostics7.1 Introduction PIO PORT7521Plus / N N/B MAINTENANCE 7. Maintenance DiagnosticsSYSTEM SOFT BIOS 7. Maintenance Diagnostics 7521Plus / N N/B MAINTENANCESYSTEM SOFT BIOS CODE7. Maintenance Diagnostics 7521Plus / N N/B MAINTENANCEPIO CONNECTOR OR P/N4119048000018.1 NO POWER 8.2 NO DISPLAY 8.3 VGA CONTROLLER FAILURE LCD NO DISPLAY 8. TROUBLE SHOOTING8.4 EXTERNAL MONITOR NO DISPLAY 8.5 MEMORY TEST ERROR 8.6 KEYBOARDK/B TOUCH-PADT/P , ESB TEST ERROR7521Plus / N N/B MAINTENANCE 8.1 NO POWER1. Check AC Adaptor 2. Check OUTLET. 3.Check Charge B’D OUTLET8.1 NO POWER 7521Plus / N N/B MAINTENANCEPOWER IN +S5V8.1 NO POWER 7521Plus / N N/B MAINTENANCESymptom POWER IN8.1 NO POWER 7521Plus / N N/B MAINTENANCESymptom No power8.1 NO POWER 7521Plus / N N/B MAINTENANCESymptom 2. Check the power source from AC adapter. PJ5017521Plus / N N/B MAINTENANCE 8.2 NO DISPLAY1. Check if power system is O.K Reboot and display OK?8.2 NO DISPLAY 7521Plus / N N/B MAINTENANCESystem Clock Check U505SH14 TI1225 PCMCIAPower Good & Reset System 7521Plus / N N/B MAINTENANCE7521 Power Module 8.2 NO DISPLAY8.3 VGA CONTROLLER FAILURE LCD NO DISPLAY SIS 630S7521Plus / N N/B MAINTENANCE There is no display or picture abnormal on LCD8.3 VGA CONTROLLER FAILURE LCD NO DISPLAY 7521Plus / N N/B MAINTENANCEThere is no display or picture abnormal on LCD VGA CONTROLLER FAILURE8.4 EXTERNAL MONITOR NO DISPLAY U24 SIS 630S7521Plus / N N/B MAINTENANCE There is no display or picture abnormal on CRT monitor8.4 EXTERNAL MONITOR NO DISPLAY 7521Plus / N N/B MAINTENANCEThere is no display or picture abnormal on CRT monitor VGA CONTROLLER FAILURE7521Plus / N N/B MAINTENANCE 8.5 MEMORY TEST ERROREither on board or extend SDRAM is failure or system hangs up Clock Synthesizer8.5 MEMORY TEST ERROR 7521Plus / N N/B MAINTENANCEEither on board or extend SDRAM is failure or system hangs up Correct it8.6 KEYBOARDK/B TOUCH-PADT/P , ESB TEST ERROR 7521Plus / N N/B MAINTENANCEError message of keyboard failure is shown or any key doesn’t work SIS 630S8.6 KEYBOARDK/B TOUCH-PADT/P , ESB TEST ERROR 7521Plus / N N/B MAINTENANCETroubleshooting Replace M/B or7521Plus / N N/B MAINTENANCE 8.7 CD-ROM DRIVE TEST ERRORAn error message is shown when reading data from CD-ROM drive 630S8.7 CD-ROM DRIVE TEST ERROR 7521Plus / N N/B MAINTENANCEAn error message is shown when reading data from CD-ROM drive Replace M/B or into board-level Troubleshooting7521Plus / N N/B MAINTENANCE 8.8 HARD DRIVE TEST ERROR630S +5VSHDD8.8 HARD DRIVE TEST ERROR 7521Plus / N N/B MAINTENANCEReplace mother BD or into board-level Troubleshooting Parts7521Plus / N N/B MAINTENANCE 8.9 USB PORT TEST ERRORAn error occurs when a USB I/O device is installed U24 SIS 630S8.9 USB PORT TEST ERROR 7521Plus / N N/B MAINTENANCEAn error occurs when a USB I/O device is installed Board-level Troubleshooting for USB test errorSIS 630S 8.10 AUDIO FAILURE7521Plus / N N/B MAINTENANCE No sound from speaker after audio driver is installedNo sound from speaker after audio driver is installed 7521Plus / N N/B MAINTENANCE8.10 AUDIO FAILURE AUDIO OUTNo sound from speaker after audio driver is installed 7521Plus / N N/B MAINTENANCETroubleshooting for audio test error7521Plus / N N/B MAINTENANCE 8.11 SIO PORT TEST ERRORAn error occurs when a mouse or other I/O device is installed SUPER I/O8.11 SIO PORT TEST ERROR 7521Plus / N N/B MAINTENANCEAn error occurs when a mouse or other I/O device is installed Board-level Troubleshooting for SIO test error7521Plus / N N/B MAINTENANCE 8.12 PIO PORT TEST ERRORWhen a print command is issued, printer prints nothing or garbage LO OPBACK CONNECTOR FOR PIO TEST8.12 PIO PORT TEST ERROR 7521Plus / N N/B MAINTENANCEWhen a print command is issued, printer prints nothing or garbage Board-level Troubleshooting for PIO test error7521Plus / N N/B MAINTENANCE 8.13 PC-CARD SOCKET FAILUREAn error occurs when a PC card device is installed AD031 C/BE03 PAR TRDY# IRDY# RESET# SERR# PERR# STOP# DEVSEL# FRAME#An error occurs when a PC card device is installed 7521Plus / N N/B MAINTENANCEChange M/B or go into board-level Troubleshooting Board-level Troubleshooting for PC CARD test error7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-1Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-2Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-3Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-4Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-5Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-6Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-7Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-8Part Number Description7521Plus / N N/B MAINTENANCE 9. SPARE PARTS LIST-9Part Number DescriptionPage 7521 plus R02 ISSUESDRAWN DESIGN CHECKCELERON PPGA 370-PIN SOCKET C P U630S-1 630S-5 VSS30 630S-2Page VSSA VSSB VSSC VSSD 630S-4Test only Default mount R48 if TV function requiredNever mount evenCLOCK SYNTHESIZER AND DRIVER CLOSE TO RECEIVER 144 PIN SODIMM SOCKET2M X 16 BITS X 4 BANK X 4 = 64M BYTES GND2 GND1IDSELAD20 Slave address00110001 PRIMARY IDE & FDD CONNECTOR SECONDARY IDE CONNECTOR0603B IDSEL AD19 CONTENTS -- 64HMULTIFUNCTION PIN SERIAL IRQ/PARALLEL PCI INTERRUPTPCCARD SOCKET POWER SWITCH MATRIXAVSS1 AVSS2 DVSS1 DVSS2RLINE IN GND0 VCC3GND1 GND2SUPER I/O RS232/SIOHP FIR MODULE HSDL-3600#007 AVCC VCCB VCC1 VCC2VSS1 VSS2 VSS3 VSS4 AVSSUSB CONNECTOR Slave Address SYSTEM BIOSRESET# PREQ# PULL UP AT CPU Charger board connector7521 plusADINP & DISCHARGE 16.60V ABCDE16.65V 16.70V7521 plus S5VS3VS12V SENSE1+ 7521 plus 1.5V/1.8VSENSE1 SENSE2+7521 plus+5V+3V+12VS1.8V2.5V 7521 plusCPU PWR 7521P HDD/FDD BD ISSUESDRAWN DESIGNDRAWN DESIGN CHECK ISSUES DRAWN ISSUESDESIGN CHECK1+60 DRAWN DESIGN CHECK ISSUES54554 9424DRAWN DESIGN CHECK ISSUES 0-= -4$+1,511=904= 75217521Plulus/Ns/N SERVICE MANUAL & TROUBLESHOOTING GUIDEIDEIDEFORFORFORSponsoring Editor Shoestring Tsai Author Richard.Wang Assistant Editor Kelly Chiang Publisher MITAC INTERNATIONAL CORP