MiTAC 7521 PLUS/N service manual Reset#

1 2 3 4 5 6 7 8

A

20 H8_PWRON

pull low at PQ510

	pull high at d/d bd
	R78
1	2
4.7K	0603
	D9
	2
	3
1	1
R77
47K	BAV99
0603
2

GND

+5V

1

R79

100K

0603

2

1 C115

1U

0603 2

GND

PWR_ON 24

VDD5

CPU_PWR_ON 24

R188

470K

S

G

3

Q21

VDD5S

D S	D
	1		C233
G
SI2301DS			0.1U/NA
SOT23_FET			0603
	2		50V
		D19
		A	K
		RLS4148
		MLL34B
		Q20	+S3V
		DTC144WK
		2 SOT23AN_1

ADEN# 20,24

A

B

4,5,12,18 PCIRST#

+3V

3

JL21

JP_NET

JP_NET15

U10
MAX809_SOT23
VCC	RESET#	2
GND
1

PCIRSTNS# 14,15

+2.5V

1

R80

4.7K

D5 0603

1

3 2

2 CPU_PWRGOOD 2 BAV99

PWROK 6,20

1
GND
			B
VDD5
1
R228
20K
0603
1%
2
	C
B	Q27
2	E MMBT3904L		VCC_RTC
Q28
1
SCK431CSK-1
SOT23N	1
3		3	3
	C276

C

PWR_VDDIN

F2

12

FUSE_1206 3216FF-1 1A-1206

GND

	U32
8	IN	5VTAP	6
2			1
	SENSE	OUT

VDD5

	Q22	+S5V
S	D S	D

			10U
			1206		D6		D7
GND		2	10V		BAV99		BAV99
		GND		1	2	1	2
				D
R227				D	Q26
1	2		G G	S	SI2301DS
				S			C
470	1			1
0603
		R226			R224
		100K			1K
		0603			0603
	2			2
				1
					BT501

20 VDD5_SW

R199

1 2

0/NA

0603B_DFS

7	F/B	ERR-	5
3			4
	SHUTDN	GND

LP2951-02BM

	1	C247
		10U
GND		1206
2		10V

GND

K		2		G	G
					SI2301DS
	D20		R195		SOT23_FET
	RLZ5.6B		100K
			0603B
A		1
								VDD5_SW# 20
GND
				3			Q23
							DTC144WK
						2	SOT23AN_1	VDD5_SW 20

GND

BH-800.1K

BAT_B098

2

GND

D

1

GND

SUSTAT1#

SUSTAT2#

SUSA#

SUSB#

SUSC#

VDD5

+5V51

VDD3

+12V

+5V

+5VS

+3V

+3VS

CPU_IO

CPU_CORE

O

O

O

O

O

FULL ON

O

O

O

O

O

O

O

O

O

O

X

X

X

O

O

POS

O

O

O

O

O

O

O

O

O

O

X

X

X

X

O

STR

O

O

O

O

O

X

O

X

X

X

X

X

X

X

X

STD(SOFT OFF)

O

O / X

O

X

X

X

X

X

X

X

(ACIN OR BATTERY IN)

ADIN

/ BAT

X

X

X

X

X

MECH OFF

X

X

X

X

X

X

X

X

X

X

(NO ACIN & NO BATT)

D

Title	MITAC INTERNATIONAL CORP.
	7521 plus
Size	Document Number				Rev
C	SD411670000002				02
Date:	Tuesday, May 08, 2001	Sheet	23	of	30

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