Aiwa AV-DV75 HC User manual

STEREO AV RECEIVER

AV-DV75

S/M Code No. 09-994-324-8N2

SERVICE MANUAL

DATA

1211

BLOCK DIAGRAM

TUNER C.B

TUNER BLOCK

PLL

IC721

LC72131D

IF/DET MPX

IC771

LA1837

TUNE/IFC

PLL-CE

TM-BASS

DATA

CLK

TUNER L

MAIN C.B

PHONO

J501 (1/2)

AUX

J502

J901 (1/2)

VIDEO 1

DVD/MD IN

J902 (1/2)

VIDEO 2

LD/TV IN

FUNCTION

IC502

BU4052BCF

PHONO EQ

IC501

NJM2068MD

FUNCTION

IC503

M62445AFP

L OUT

TUNER

PHONO

AUX

VIDEO

DATA

CLK

LATCH(STB)

R OUT

VR IN (L)

VR IN (R)

J501 (2/2)

TAPE

MONITOR

J901 (2/2)

VIDEO 1

DVD/MD IN

J902 (2/2)

VIDEO 2

LD/TV IN

J501

VIDEO 3

VIDEO/AUDIO

VIDEO C.B (1/2)

J904 (1/2)

VIDEO 1

DVD OUT

J905 (1/2)

VIDEO 2

LD/TV OUT

J904 (2/2)

VIDEO 1

DVD/MD OUT

J905 (2/2)

VIDEO 2

LD/TV OUT

Q902

Q903

J903 (1/2)

MONITOR

VIDEO OUT

Q901

J903 (2/2)

MONITOR

REC OUT

REC OUT SW

IC902

BU4066BCF

VIDEO SW

IC901

BA7625

AV-A

AV-B

AV-A

AV-B

AV-A

AV-B

REC OUT

MIC OUT

TAPE

MONITOR SW

IC701

TC4053BF

GRAPHIC

EQUALIZER

IC701

M62431AFP

GEQ C.B

STB 31

CLK

DATA

L IN L OUT

BBE

IC601

BA3880S

DIGITAL

INPUT

VIDEO 2

J101

DOLBY DIGITAL C.B

IC115

GP1F37R

(COAXIAL)

VIDEO 1

(OPTICAL)

IC122

GP1F37R

VIDEO 3

IC118

TC74HCU04

SURROUND

SOUND CODEC

A/D,D/A CONV.

IC102

CS4226

IC104

NJM2068MD

L OUT

ADO/CS

DOLBY AC-3

PROLOGIC

DECODER

IC101

YSS248

CLOCK

IC121

TC74HC00AF

X101

10MHz

PORT1~5 5

SD0~2 3

SDI0

OVL/ERR

SDA

SCK

IC105(1/2)

NJM2068MD

IC107(1/2)

NJM2068MD

SUB WOOFER

ON/OFF SW

IC108

TC4053BF

ABC

CENTER SW

IC109

TC4053BF

ABC

IC107(2/2)

NJM2068MD

Q401~403

IC111

NJM2068MD

IC113

NJM2068MD

IC112(2/2)

NJM2068MD

IC110

NJM2068MD

IC112(1/2)

NJM2068MD

DSP/

ECHO

IC117

M65849BFP

CLK

DATA

DSP-CE

SURROUND

MODE SELECT

IC119

TC4053BF

R-CH

IC120

NJM2068MD

IC101

NJM4558MD

Q401

MUTE

Q721

CENTER/

S-WOOFER VOL

IC146

M624396P

Q301

MUTE

Q304

SURROUND VOL

IC145

M624396P

SURROUND

AMP

CENTER

AMP

Q402~417

Q420,421,440

Q303~326

Q330~333,340

Q201

MUTE

Q202

FRONT

AMP

Q203~228

Q230~233,240

R-CH BA

S292 S291

OFF

VIDEO C.B (2/2)

PHONES

J603

SW401

FUNCTION

LFRONT

SPEAKER A

4Ω/8Ω

SURROUND

SPEAKER

8Ω

J301

CENTER

SPEAKER

4Ω/8Ω

J715

FRONT

SPEAKER B

4Ω/8Ω

J201

SUPER

WOOFER

µCON

IC103

µPD780028GF-027-3BA

TUNE/IFC

PLL-CE

T-BASE

DATA

CLK

STB

STB-31

ADO/CS

SDA

SCK

DSP-CE

SW102

MULTY

SW101

VOLUME

JOG2

JOG1

HP MUTE

KEY

MATRIX

S101,107~109

S111,113,401,402

KEY

MATRIX

S110,112,114~116

S403

KEY2

KEY1

LED

DRIVER

IC101,102

BU4049BLF

FL101

(DISPLAY)

FRONT C.B

AC IN

PT002D002-004

RY001

POWER C.B

PT101

T.F

FIL1

FIL2

F101

+VH

-VH

+VL

-VL

D107

D121

S101

RY102

RY101

40HM

80HM

REG

Q107~109

15W

CUTOFF

Q105,106

-VFL

REG

Q118

-VCC

REG

Q102

-VCC

CONT

Q101

+VCC

REG

Q103

DET

Q112,113

2 TIMES

DET

Q117

Q114,115

RESET

Q116

-VFL

HOLD

+VCC

-VCC

FRONT/

SURROUND/

CENTER AMP

FRONT/

SURROUND/

CENTER AMP

IC106

NJM2068MD

DC DET

IC106

POWER SYNC DET

IC106

POWER

DET

IC851

BU1920FS

RDS

1615

SCHEMATIC DIAGRAM-1 (MAIN 1/2)

1817

1234567

WIRING-2 (AC/PT) SCHEMATIC DIAGRAM-2 (AC/PT)

2019

SCHEMATIC DIAGRAM-3 (MAIN 2/2)

2423

SCHEMATIC DIAGRAM-4 (FRONT)

2827

SCHEMATIC DIAGRAM-5 (TUNER)

TU +B

TO MAIN C.B

CN506

TO MAIN C.B

CN503

TU +B

RF AMP

LW VTADJ

LW TRACKING ADJ.

TRACKING

ADJ.

J802

ANTENNA

MW/LW

LOOP

FM 75Ω

(COAXIAL)

MW IF ADJ.

DC BALANCE/MONO DISTORTIONADJ.

TUNER C.B

RDS

DATA

AMP

FM/AM

IF DET./MPX/

DECODER

BAND SWITCH

BAND

SWITCH BAND

SWITCH

3231

SCHEMATIC DIAGRAM-6 (DOLBY)

3635

SCHEMATIC DIAGRAM-7 (HP/VIDEO/GEQ)

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