MiTAC 7521 PLUS/N service manual Clk, Clr, Gnd Vcc

1 2 3 4 5 6 7 8

A

B

C

USB CONNECTOR

+5V
F502							L2	0805C				USB_B1
1	2					1			2
MINISMDC110			1	1	C506 BEAD_120Z/100M						1	C14
			R20
1.1A/6V-POLY-SW					10U							1000P
			100K		1210							0603
			0603	2	10V						2
			2
6 USB_OC0#					GND							USB_GND
			1
			R19
			560K
			0603
			2
			GND
6	D/USBP0-											USB_B2
									4	L12		3
												PLP3216S
									1			2
6	D/USBP0+											USB_B3
					1		1
						R142		R143
						15K		15K
						0603		0603
					2		2
					GND
+5V
	F503							L6	0805C			USB_A1
	1	2					1				2
MINISMDC110			1		1	C507	BEAD_120Z/100M					1
			R22									C25
1.1A/6V-POLY-SW						10U						1000P
			100K			1210						0603
			0603		2	10V						2
			2
6 USB_OC1#					GND							USB_GND
			1
			R23
			560K									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
						47P
						0603
					2	10%
		L54	0603			GND
	1		2
	BEAD_130Z/100M				1	C271
						47P
						0603
					2	10%
						GND
			1	R201	2
				0/NA	0603B_DFS
			1	R198	2
				0/NA	0603B_DFS
1	C251	1	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
			0.1U
12	12		0603
11		2	50V
	11
10
	10			GND
9
	9
8
	8
7
	7		GND
6
	6
5																											D
	5
4
	4
3
	3
2
	2
1
	1
	FPC/FFC-12P/0.5MM
GND	6239-012-001-800
	291000151204
																						Title				MITAC INTERNATIONAL CORP.

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