Acer MB243WABNS service manual ACERLCDG24SCHEMATICSINTERFACEBDUSB and CAM/MIC Output

8.9 ACER_LCD_G24_SCHEMATICS_INTERFACE_BD_USB AND CAM/MIC OUTPUT

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ACER G24 43

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A

B

	+5V
	C449		+3V3		R430
	220u/25V	TP447	R490		10K
		R491	47K		R431	30K
	GND	47K
3	USB_EN		Q310	TP353
			MMBT3906
			TP355	TP356	D334
			TP448
					MM4148
			R434	47K	Q307
					MMBT3904

USB2512

GND

Q308	TP345				SOT-223	TP346
						FB328
AO3401		+U5V					+U3V3
				I317		PBY201209T-170Y-S		TP348
2	3		3	VIN	VOUT	2
			1	ADJ(GND) TAB		4
C450	C451	C452				C453		C454
1				AIC1117A-33PYTR
0.1u	0.1u	100u/10V				0.1u		22u/50V
	TP354
		+U5V				+C3V3	UGND
				I327

32

VIN VOUT

14

ADJ(GND) TAB

AIC1117A-33PYTR

C490

100u/10V

UGND UGND

+U3V3

TP359

P308

BUSPWR

R439

10K

USB_DET

3

USB_B

TP364

TP365

D343

MM4148

R527

5

1

L301

18K

2

3

2

4

4

1

1

DN0

TP369

3

3

2

DP0

TP371

3

2

4

1

4

C459

C460

WCMH2012F2SF-900T04

UGND

C461

6

NC

NC

0.1u

GND

UGND

UGND

+U5V

+U5V

F301

TP349

F302

TP350

5V 0.75A

5V 0.75A

VBUS4

VBUS5

TP351

FB329

TP352

FB330

1

2

1

2

PBY201209T-170Y-S

PBY201209T-170Y-S

R432

C455

R433

C457

C456

C458

10K

100uF/10V

0.1u

10K

100uF/10V

0.1u

A

B

C

D

E

F

G

TP376	TP377	I318	R440	I323
		USB2512		USB2514

R443

Upstream

10K

Upstream

100K

USBUP_DP

31

DP0

USBUP_DP

BUSPWR

27

TP366

2514_DET R460

0

27

VBUS_DET

VBUS_DET

30

DN0

USBUP_DM

USBUP_DM

C463

R444

1u

100K

TP515

UGND

UGND

Downstream 1

DP1

Downstream 1

USBDN1_DP

2

USBDN1_DP

USBDN1_DM

1

DN1

USBDN1_DM

13

OCS1

PRTPWR1

12

OVR2

13

OCS1

PRTPWR1

Downstream 2

DP

Downstream 2

USBDN2_DP

4

USBDN2_DP

USBDN2_DM

3

DN

USBDN2_DM

17

OCS2

PRTPWR2

16

2514_DET

+U3V3

OVR3

17

OCS2

PRTPWR2

+U3V3

R452

R453

R442

NC

NC

100K

EEPROM/Config

USDA

TP372

Downstream 3

SDA/SMBDATA/NON_REM1

22

USBDN3_DP

R451

24

USCL

TP374

SCL/SMBCLK/CFG_SEL0

25

TP415

HS_IND/CFG_SEL1

USBDN3_DM

100K

+U3V3

TP394

TP379

OVR4

19

OCS3

PRTPWR3

26

Common

R571

R572

R573

RESET

35

RBIAS

C468

100K

100K

NC

R574

0.1u

R454

NC

UGND

12K/1%

UGND UGND UGND

	28	LOCAL_PWR/NON_REM0/SUSP_IND_N				FB336				Downstream 4
										USBDN4_DP
TP514				23	UGND
			VDD33(IO)				+U3V3
R569
										USBDN4_DM
	11			15		PBY201209T-170Y-S	TP416
		TEST	VDD33(REG)
100K							OVR5	21
									OCS4	PRTPWR4
					C533	C534
	TP391

UGND

VDDA33

5

0.1u

0.1u

UGND

10

VDDA33

C531

22pF

33

29

UGND

UGND

XTAL1/CLKIN

VDDA33

+U3V3

36

VDDPLLREF/VDDA33

C546

C547

C548

C549

C550

EEPROM/Config

X303

R575

1u

0.1u

0.1u

0.1u

0.1u

R456

SDA/SMBDATA/NON_REM1

SCL/SMBCLK/CFG_SEL0

24MHz

1M

100K

HS_IND/CFG_SEL1

TP395

14

TP512

+U3V3

VDDCR18

UGND

26

Common

C532

22pF

C542

C543

RESET

32

XTAL2/CLKIN_EN

RBIAS

C472

1u

0.1u

R438

UGND

0.1u

TP390

NC

37

34

UGND

VSS(FLAG)

VDDPLL18

TP408

UGND

28

LOCAL_PWR/NON_REM0/SUSP_IND

C544

C545

TP513

UGND

1u

0.1u

R441

VDD33IO

11

TEST

VDD33REG

100K

UGND

TP399

UGND

VDDA33

UGND

VDDA33

C469

18pF

33

XTAL1/CLKIN

VDDA33

VDDA33/VDD33PLL

X304

R458

+U3V3

C474

NC

24MHz

1M

VDD18CR

C471

18pF

32

XTAL2/CLKIN_EN

R462

R463

I319

NC

NC

1

A0

VCC

8

UGND TP409

2

7

A1

WP

3

6

USCL

37

A2

SCL

VSS(FLAG)

VDDA18PLL

4

5

USDA

VSS

SDA

NC

UGND

TP420

TP421

UGND

31DP

30DN

2DP2

1DN2

12

4DP3

3DN3

16

7DP4

6DN4

18

9DP5

8DN5

20

22

24

25			TP378
		TP385	R445
	TP398	R449
	R457		100K
35		100K
	100K
	TP388
R455		UGND
	UGND
11.5K/1%	UGND

	FB333
23	UGND	+U3V3
15	PBY201209T-170Y-S	TP418

	C551	C552
5	0.1u	0.1u
10
29	UGND		UGND
36
	C553	C554	C555	C556	C557
	1u	0.1u	0.1u	0.1u	0.1u
14			TP414

UGND

C558 C561

	1u	0.1u
34		UGND
C562	C563	TP422
1u	0.1u

UGND

OVR4 TP357 OVR5 TP358

UGND

UGND

UGND

UGND

R435

R436

15K

15K

UGND

UGND

TP360

TP361

P307

1

1

L302

VBUS4

VBUS3

2

2

TP362

DN4

4

1

DD2M

3

4

1

3

TP363

DP4

3

2

DD2P

4

3

2

4

GND

5

TP367

TP368

5

WCMH2012F2SF-900T04

6

6

7

7

L303

VBUS5

VBUS4

8

8

TP370

DN5

4

1

DD1M

9

4

1

9

TP373

DP5

3

2

DD1P

10

3

2

10

GND

11

11

WCMH2012F2SF-900T04

12

12

JWT-A2008WR0-12P

C462

0.1u

UGND

GND

+U5V

+U5V

F303

TP380

F304

TP381

5V 0.75A

5V 0.75A

VBUS2

VBUS3

TP382

FB331

TP383

FB332

1

2

1

2

PBY201209T-170Y-S

PBY201209T-170Y-S

R446

C464

R447

C466

C465

C467

10K

100uF/10V

0.1u

10K

100uF/10V

0.1u

OVR2

TP386

OVR3

TP387

R448

UGND

UGND

UGND

UGND

R450

15K

15K

UGND

UGND

TP392

TP393

P309

USB_A_DUAL

12

10

L304

WCMH2012F2SF-900T04

VBUS2

1

DM-

GND

GND

4

1

TP396

DN2

4

1

2

VCC

TP397

DP2

3

3

2

2

3

DP+

4

GND

VBUS3

5

VCC

TP400

DN3

4

1

6

4

1

DM-

TP401

DP3

3

2

7

3

2

GND

GND

GND

8

DP+

L305

WCMH2012F2SF-900T04

11

TP402

TP403

9

C470

0.1u

UGND

GND

R459

0

TP406

TP407

P310

L306

VBUS1

VBUS1

1

1

TP410

DN1

4

1

DN1

2

4

1

2

TP411

DP1

3

2

DP1

3

3

2

3

DIAG_LOOP

4

4

WCMH2012F2SF-900T04(NC)

TP412

GND

5

5

R461

0

3 CAM_MIC_DIAG

R464

100

JWT-A2008WR0-5P

FB327

C485

PBY201209T-170Y-S

0.1u

UGND

UGND

TP417

+U5V

FB344

1

2

VBUS1

XPBY201209T-170Y-S

+C3V3

TP347

FB335

1

2

PBY201209T-170Y-S

C481

C482

100uF/10V

0.1u

UGND

UGND

C

D

E

F

G

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PCB No. 6832194600P0