HP LC3260N manual Sound AMP/HEADPHONE AMP Schematic Diagram

Page 41

8

7

6

5

4

3

2

1

A

B

C

D

E

F

G

H

SOUND AMP/HEADPHONE AMP SCHEMATIC DIAGRAM

(AV PCB)

8

B

SOUND AMP

C324

0.1

IC301TA2024-ASE

24.0

5.5

1

+5VGEN

CPUMP36

C337

50V 1 KANP

23.0

0

W853

2

DCAP2

PGND1

35

C328

0.1 B

14.0

0

3

DCAP1

NC

34

NC

C338

11.0

5.5

0.1 B

7

W854

4

VD5

VDDA

33

C326

0.1 B

0

32

0

5

AGND1

NC

NC

TR301

6.0

4

W855

R317

0

6

REF

OUTP1

31

L300

W5T29X7.5X19

EC31QS04

8.2K

0.1

B

10uH7313N

B0.470.47 B

11.0

D303D302

C349 C348

R320C352

100.47 F

89 7

V5A

OUTM1282930

EC31QS04

1/2W C354

0.1 B

SP OUT L-

1

2

C331

B0.1

+-1%

0

OVERLOADB

VDD1

C339

4 OHM 10W

NC

W878

0

11.0

C340_1

(L)

AGND2

VDD1

CP303

A2502WV2-2P

CD303

SPEAKER SP302

25V820

6.0

5

SP OUT L+

2

1

5.5

FM

L301

EAS12D175B

FROM/TO STEREO

6.0

10uH7313N

CU128001

R318

2.5

1213 11 10

OAOUT1

OUTM2

2524 26 27

L302

6

D305D304

EC31QS04

C351C350

B0.470.47 B

C353R321

F0.4710 1/2W

0.1B

50V 1

KANP

NC

NC

OUTP2

0.1

B

C355

SP301

SP_AUDIO_OUT_R

3

R304

C320

R314

22K

2.5

11.0

C341

10uH7313N

6

CP301

A2502WV2-3P

CD301

SPEAKER

SP_AUDIO_OUT_L

1K

22K

INV1

VDD2

SP OUT R-

3

1

W886

0

11.0

C342_1

NC

NC

2

2

EAS12D175B

MUTE

VDD2

SP OUT R+

1

3

25V820

(R)

6.0

7

0

FM

L303

CU123401

4 OHM 10W

R319

2.5

0

10uH7313N

14

23

22K

OAOUT2

NC

NC

2

R302

C319

R315

2.5

0

15

INV2

DGND

22

1K

50V 1

KANP

22K

SW

C332

2.5

0

5

Q300

0.1

B

16

BIASCAP

NC

21

NC

CH

CH

0

2SC3052

FROM/TO POWER

R311

3.0

C323

0

20

0

C359

470P

C363

470P

17

AGND3

PGND2

10K

0.1 B

GND

0

0

0

470PCH

470PCH

19

C358

C362

SOUND+B

18

SLEEP

FAULT

NC

SOUND_GND

AT+5V

R324

CH

C368

ACD

47K

HS300

0.001

763WAAA066

W884

HS78

NC

4

FROM/TO TUNER/OUT JACK

W887

POWER_ON-H

AUDIO_MUTE

R322

4.7K

R323

4.7K

0

3

4.8

SW

Q302

R325

4.8

SW

0

2SC3052

1K

0

Q301

2SC3052

0

2

PCBD20

W913

CMF080

W910

W911

W912

1

CAUTION:SINCE THESE PARTS MARKED BY

ARE

ATTENTION:LES PIECES REPAREES PAR UN

ETANT

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

CRITICAL FOR SAFETY,USE ONES

DANGEREUSES AN POINT DE VUE SECURITE

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

DESCRIBED IN PARTS LIST ONLY

N’UTILISER QUE CELLS DECRITES

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

DANS LA NOMENCLATURE DES PIECES

A

B

C

D

E

F

G

H

H-9

H-10

Image 41

Contents Model Servicing Notices on Checking HOW to Order PartsAbout Lead Free Solder PbF Contents System General SpecificationsA3-2 A3-3 A3-4 A3-5 Removal and Installation of Flat Package IC Disassembly InstructionsInstallation Set Set Key Remocon Standard Operations Condition Time Service Mode ListConfirmation of Initial Data When Replacing Eeprom Memory ICRE-WRITE for Digital Soft Firmware Adjustment Procedure Electrical AdjustmentsConfirmation of Fixed Value Step No Electrical Adjustment Parts Location Guide Wiring Connection Troubleshooting Guide Pins 1, 2, 3, 4 Picture does not Appear Is There Signal Picture APPEARS, but the Audio does not Appear CD3806 5V ? YES Is There Signal On Screen Display does Not Appear Digital RGB Interface Ddvs Converter AV SWITCH2/STEREO/SOUND AMP Block Diagram TUNER/DIGITAL/POWER Block Diagram Interface Block Diagram MICON2 Block Diagram CMF080A Printed Circuit Boards AV TOP SidePrinted Circuit Boards AV Bottom Side Printed Circuit Boards Scaler TOP Side Printed Circuit Boards Scaler Bottom Side Digital Bottom Side Printed Circuit Boards Digital TOP SideSolder Side CEF185A Printed Circuit Boards POWER/OPERATION Chip Mounted PartsAV SWITCH2 Schematic Diagram Level Shift AT+5V Mute SWYUV1/2 PSU5VD/DSR/LIGHTCTL PCBD20AV Jack Schematic Diagram Stereo Schematic Diagram Sound AMP/HEADPHONE AMP Schematic Diagram Power Schematic Diagram Coaxial Jack CON+5V AV JACK2 Schematic DiagramExtmute Swspdif Tuner Schematic Diagram Stereoreset HDMI/DVI COMPONENT/HDMI KEY-A KEY-B ScalerresetDVS 3DY/CRESET AFT1LOW 3DY/CRESET AFT2HIGH LcdonScaler Schematic Diagram ADC1 Schematic Diagram Lvds Schematic Diagram Jack Schematic Diagram AV SWITCH1 Schematic Diagram Regulator Schematic Diagram Interfacehdmi IC Schematic Diagram Hdmi MICON2 Schematic Diagram Asic Schematic Diagram Sdram Schematic Diagram NFIO7 NFIO6 NFIO5 NFIO4 NFIO3 NFIO2 NFIO1 NFIO0 To Asic Dtvreset From POWER2Nfcle FclkFront END Schematic Diagram DTV Reset DTV Power FROM/TO Firm UpdateAFT DTV Reset DTV ON-H Spdif Outa Tunersda AF3 TwiretxdcPOWER2 Schematic Diagram IC508 5VREGULATORPOWERFAIL LCD-H PowerswctlFROM/TO AC Inlet Chassis GNDOPERATION/REMOCON Schematic Diagram Power ON-H GND Power PCBDtunerresetl SwitchvideocWaveforms ADC1 AV OUT Mechanical Exploded View PCBDH0 Mechanical Replacement Parts List Electrical Replacement Parts List SPEC.NO