Marantz SR4300 User Manual

Service

SR4300 /A1B/A1G/F1N/K1G

/L1G/N1B/N1G/U1B

Manual

SR4300 /F/U

POWER ON / STNDBY

SR4300 /A/K/L/N

POWER ON/OFF

AV Surround Receiver

AV SURROUND RECEIVER SR4300

SURROUND

CLEAR

STANDBY

STANDBY

SURROUND

PHONES

AV SURROUND RECEIVER SR4300

PHONES

A/D

TV

6.1CH-IN

CLEAR

A/D

TV

6.1CH-IN

TUNING/PRESET

MEMORY

HT-EQ

DVD

VCR1

TUNING/PRESET

MEMORY

HT-EQ

DVD

VCR1

F/P

MODE

S-DIRECT

DSS/VCR2

CDR/MD

S-DIRECT

DSS/VCR2

CDR/MD

MUTE

DIMMER

TAPE

CD

TUNER

F/P

MODE

MUTE

DIMMER

TAPE

CD

TUNER

VOLUME

DOWN

DOWN

UP

VOLUME

UP

SR4300

TABLE OF CONTENTS

SECTION PAGE

1. TECHNICAL SPECIFICATIONS........................................................................... 1

2. WIRING DIAGRAM ............................................................................................... 5

3. BLOCK DIAGRAM ................................................................................................ 7

4. SCHEMATIC DIAGRAM ....................................................................................... 9

5. PARTS LOCATION............................................................................................. 31

6. IC DATA .............................................................................................................. 45

7. EXPLODED VIEW AND PARTS LIST ................................................................ 51

8. SERVICE PROCEDURE .................................................................................... 55

9. ELECTRICAL PARTS LIST ................................................................................ 58

Please use this service manual with referring to the user guide ( D.F.U. ) without fail.

R

SR4300

09AW855010 MIT
First Issue 2002.12

MARANTZ DESIGN AND SERVICE

Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.
Only original

MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for which

it is famous.
Parts for your

MARANTZ equipment are generally availab le to our National Marantz Subsidiary or Agent.

ORDERING PARTS :

Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.
The following information must be supplied to eliminate delays in processing your order :

1. Complete address

2. Complete part numbers and quantities required

3. Description of parts

4. Model number for which part is required

5. Way of shipment

6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.

USA

MARANTZ AMERICA, INC

1100 MAPLEWOOD DRIVE
ITASCA, IL. 60143
USA
PHONE : 630 - 741 - 0300
FAX : 630 - 741 - 0301

AMERICAS

SUPERSCOPE TECHNOLOGIES, INC.

MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX : 630 - 820 - 8103

AUSTRALIA

QualiFi Pty Ltd,

24 LIONEL ROAD,
MT. WAVERLEY VIC 3149
AUSTRALIA
PHONE : +61 - (0)3 - 9543 - 1522
FAX : +61 - (0)3 - 9543 - 3677

NEW ZEALAND

WILDASH AUDIO SYSTEMS NZ

14 MALVERN ROAD MT ALBERT
AUCKLAND NEW ZEALAND
PHONE : +64 - 9 - 8451958
FAX : +64 - 9 - 8463554

EUROPE / TRADING

MARANTZ EUROPE B.V.

P. O. BOX 8744, BUILDING SILVERPOINT
BEEMDSTRAAT 11, 5653 MA EINDHOVEN
THE NETHERLANDS
PHONE : +31 - 40 - 2507844
FAX : +31 - 40 - 2507860

AUSTRALIA

TECHNICAL AUDIO GROUP PTY, LTD

558 DARLING STREET,
BALMAIN, NSW 2041,
AUSTRALIA
PHONE : 61 - 2 - 9810 - 5300
FAX : 61 - 2 - 9810 - 5355

THAILAND

MRZ STANDARD CO., LTD

746 - 754 MAHACHAI ROAD.,
WANGBURAPAPIROM, PHRANAKORN,
BANGKOK, 10200 THAILAND
PHONE : +66 - 2 - 222 9181
FAX : +66 - 2 - 224 6795

TAIWAN

PAI- YUING CO., LTD.

6 TH FL NO, 148 SUNG KIANG ROAD,
TAIPEI, 10429, TAIWAN R.O.C.
PHONE : +886 - 2 - 25221304
FAX : +886 - 2 - 25630415

CANADA

LENBROOK INDUSTRIES LIMITED

633 GRANITE COURT,
PICKERING, ONTARIO L1W 3K1
CANADA
PHONE : 905 - 831 - 6333
FAX : 905 - 831 - 6936

HONG KONG

Jolly ProAudio Broadcast Engineering Ltd.

UNIT 2, 10F, WAH HUNG CENTRE,

41 HUNG TO ROAD, KWUN TONG, KLN.,
HONG KONG
PHONE : 852 - 21913660
FAX : 852 - 21913990

SINGAPORE

WO KEE HONG DISTRIBUTION PTE LTD

130 JOO SENG ROAD
#03-02 OLIVINE BUILDING
SINGAPORE 368357
PHONE : [phone]
FAX : [phone]

MALAYSIA

WO KEE HONG ELECTRONICS SDN. BHD.

2ND FLOOR BANGUNAN INFINITE CENTRE
LOT 1, JALAN 13/6, 46200 PETALING JAYA
SELANGOR DARUL EHSAN, MALAYSIA
PHONE : +60 - 3 - 7954 8088
FAX : +60 - 3 - 7954 7088

JAPAN

MARANTZ JAPAN, INC.

35- 1, 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : [phone]
FAX : [phone]

Technical

KOREA

MK ENTERPRISES LTD.

ROOM 604/605, ELECTRO-OFFICETEL, 16-58,
3GA, HANGANG-RO, YONGSAN-KU, SEOUL
KOREA
PHONE : +822 - 3232 - 155
FAX : +822 - 3232 - 154

SHOCK, FIRE HAZARD SERVICE TEST :

CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC

cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or F ront Panel of product and
controls and chassis bottom.
Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC po w er is applied, and
verified before it is return to the user/customer.
Ref. UL Standard No. 6500.

In case of difficulties, do not hesitate to contact the Technical
Department at above mentioned address.

020816MIT

1. TECHNICAL SPECIFICA TIONS

FM TUNER SECTION

Frequency Range ...........................................................................................................................................76.0 - 90.0 MHz(/F)

Usable Sensitivity........................................................................................................................................... IHF 1.8 µV/16.4 dBf

Signal to Noise Ratio ................................................................................................................................ Mono/Stereo 76/72 dB

Distortion ................................................................................................................................................... Mono/Stereo 0.2/0.3 %

Stereo Separation ...................................................................................................................................................... 1 kHz 45 dB

Alternate Channel Selectivity ........................................................................................................................ ± 400 kHz 60 dB(/F)

Image Rejection ................................................................................................................................................ 83 MHz 70 dB(/F)

Tuner Output Level ................................................................................................................. 1 kHz, ± 75 kHz Dev800 mV(/F/U)

AM TUNER SECTION

Frequency Range ..................................................................................................................................531 - 1602 kHz(/F/K/L/N)

Signal to Noise Ratio ........................................................................................................................................................... 50 dB

Usable Sensitivity.................................................................................................................................................. Loop 500 µV/m

Distortion ............................................................................................................................................1 kHz, 30 % Mod. 0.5 %(/F)

............................................................................................................................... 400 Hz, 30 % Mod. 0.5 %(/K/L/N/U)

Selectivity ........................................................................................................................................................ ± 20 kHz 70 dB(/F)

.............................................................................................................................................. ± 18 kHz 70 dB(/K/L/N/U)

AUDIO SECTION

Power Output (20Hz - 20kHz / THD=0.08%)

Front L&R................................................................................................................................................................. 8 Ω 80 W/Ch

Center ...................................................................................................................................................................... 8 Ω 80 W/Ch

Surround L&R .......................................................................................................................................................... 8 Ω 80 W/Ch

Surround Back ......................................................................................................................................................... 8 Ω 80 W/Ch

Front L&R................................................................................................................................................................. 6 Ω 95 W/Ch

Center ...................................................................................................................................................................... 6 Ω 95 W/Ch

Surround L&R ........................................................................................................................................................... 6 Ω 95 W/Ch

Surround Back .......................................................................................................................................................... 6 Ω 95 W/Ch

Maximum Power Output (1kHz / JEITA)

Front L&R............................................................................................................................................................... 6 Ω 125 W/Ch

Center .................................................................................................................................................................... 6 Ω 125 W/Ch

Surround L&R ........................................................................................................................................................ 6 Ω 125 W/Ch

Surround Back ....................................................................................................................................................... 6 Ω 125 W/Ch

Input Sensitivity/Impedance ...................................................................................................................................215 mV/ 47 kΩ

Signal to Noise Ratio (Analog Input/Source Direct) ............................................................................................................. 95 dB

Frequency Response

(Analog Input/Source Direct)......................................................................................................................... 8 Hz - 70 kHz(±3dB)

(Digital Input/96kHz PCM) ............................................................................................................................ 8 Hz - 45 kHz(±3dB)

............................................................................................................................... 87.5 - 108.0 MHz(/K/L/N/U)

............................................................................................................... ± 300 kHz 60 dB(/K/L/N/U)

...................................................................................................................................... 98 MHz 70 dB(/K/L/N/U)

.............................................................................................................. 1 kHz, ± 40 kHz Dev800 mV(/K/L/N)

............................................................................................................................................ 520 - 1710 kHz(/U)

VIDEO SECTION

Television Format .......................................................................................................................................................NTSC(/F/U)

Input Level/Impedance.............................................................................................................................................. 1 Vp-p/ 75 Ω

Output Level/Impedance ........................................................................................................................................... 1 Vp-p/ 75 Ω

Video Frequency Response.........................................................................................................................5 Hz - 8 MHz (- 1 dB)

Signal to Noise Ratio ........................................................................................................................................................... 60 dB

GENERAL

Power Requirement .................................................................................................................................. AC 100 V 50/60 Hz(/F)

Power Consumption.......................................................................................................................................................320 W(/F)

Weight ................................................................................................................................................................ 12.5 Kg(27.6 lbs)

ACCESSORIES

Remote Control Unit RC4300SR ................................................................................................................................................. 1

AAA-size batteries .......................................................................................................................................................................2

FM Antenna .................................................................................................................................................................................1

AM Loop Antenna ........................................................................................................................................................................ 1

AC Power Cord ............................................................................................................................................................................1

.............................................................................................................................................NTSC/PAL(/K/L/N)

.................................................................................................................................. AC 220 V 50/60 Hz(/K)

........................................................................................................................................AC 110 V 60 Hz(/L)

....................................................................................................................................... AC 230 V 50 Hz(/N)

....................................................................................................................................... AC 120 V 60 Hz(/U)

............................................................................................................................................ 325 W(/K/L/N/U)

1

The relation between the selected surround mode and the input signal

The surround mode is selected with the surround mode knob on SR4300 or the remote control unit. However, the sound you hear is subject to the
relationship between the selected surround mode and input signal. That relationship is as follows;

Surround Mode Input Signal Decoding
AUTO Dolby Surr. EX Dolby Digital EX

S-DIRECT Dolby D Surr. EX Dolby Digital EX

EX/ES Dolby D Surr. EX Dolby Digital EX

DOLBY Dolby D Surr. EX Dolby Digital 5.1
(PL MOVIE) Dolby D (5.1ch) Dolby Digital 5.1
(PL MUSIC) Dolby D (2ch) Pro Logic
(PRO LOGIC) Dolby D (2ch Surr) Pro Logic

DTS DTS-ES DTS 5.1
(Neo:6 Cinema) DTS (5.1ch) DTS 5.1
(Neo:6 Music) PCM (Audio) Neo:6

CS CINEMA PCM (Audio) CS
CS

MUSIC Analog CS
CS MONO or CSII MONO
STEREO Dolby Surr. EX Stereo

VIRTUAL Dolby Surr. EX Virtual

MULTI CH ST Dolby Surr. EX Dolby Digital EX

DSP SURROUND
(MOVIE) Analog DSP
(HALL) or STADIUM
(STADIUM) or MATRIX
(MATRIX)

Dolby D (5.1ch) Dolby Digital 5.1
Dolby D (2ch) Dolby Digital 2.0
Dolby D (2ch Surr) Pro Logic movie
DTS-ES DTS-ES
DTS (5.1ch) DTS 5.1
PCM (Audio) PCM (Stereo)
PCM 96kHz PCM (96kHz Stereo)
Analog Stereo

Dolby D (5.1ch) Dolby Digital 5.1
Dolby D (2ch) Dolby Digital 2.0
Dolby D (2ch Surr) Pro Logic movie
DTS-ES DTS-ES
DTS (5.1ch) DTS 5.1
PCM (Audio) PCM (Stereo)
PCM 96kHz PCM (96kHz Stereo)
Analog Stereo

Dolby D (5.1ch) Dolby Digital EX
DTS-ES DTS-ES
DTS (5.1ch) DTS-ES

PCM (Audio) Pro Logic
Analog Pro Logic

Analog Neo:6

Dolby D (5.1ch) Stereo
Dolby D (2ch) Stereo
Dolby D (2ch Surr) Stereo
DTS-ES Stereo
DTS (5.1ch) Stereo
PCM (Audio) Stereo
PCM 96kHz Stereo
Analog Stereo

Dolby D (5.1ch) Virtual
Dolby D (2ch) Virtual
Dolby D (2ch Surr) Virtual
DTS-ES Virtual
DTS (5.1ch) Virtual
PCM (Audio) Virtual
Analog Virtual

Dolby D (5.1ch) Dolby Digital 5.1
Dolby D (2ch) Multi Channel Stereo
Dolby D (2ch Surr) Multi Channel Stereo
DTS-ES DTS-ES
DTS (5.1ch) DTS 5.1
PCM (Audio) Multi Channel Stereo
Analog Multi Channel Stereo
PCM (Audio) DSP

Output Channel Front information display

SL

L/R C

OOOOO
OOO-O
O
OOO
OOOOO
OOO-O
O
O
O
OOOOO
OOO-O
O
OOO
OOOOO
OOO-O
O
O
O
OOOOO
OOOOO
OOOOO
OOOOO
OOO-O
OOO-O
OOO
OOO
OOO
OOO
OOO-O
OOO-O
OOOO
OOOO
OOOOO
OOOOO

O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
OOOOO
OOO-O
OOO
OOO
OOOOO
OOO-O
OOO
OOO
OOO
OOO

SB SW Dot matrix display Signal format indicators Channel status

SR

----DOLBY D DIGITAL L, R

----STEREO PCM L, R

----STEREO PCM, 96kHz L, R

----STEREO ANALOG -

----DOLBY D DIGITAL L, R

----STEREO PCM L, R

----STEREO PCM, 96kHz L, R

----STEREO ANALOG -

---OSTEREO DIGITAL, EX L, C, R, SL, SR, S, LFE

---OSTEREO DIGITAL L, C, R, SL, SR, LFE

----STEREO DIGITAL L, R

----STEREO DIGITAL , SURROUND L, R, S

---OSTEREO dts , ES L, C, R, SL, SR, S, LFE

---OSTEREO dts L, C, R, SL, SR, LFE

----STEREO PCM L, R

----STEREO PCM, 96kHz L, R

----STEREO ANALOG -

----VIRTUAL DIGITAL, EX L, C, R, SL, SR, S, LFE

----VIRTUAL DIGITAL L, C, R, SL, SR, LFE

----VIRTUAL DIGITAL L, R

----VIRTUAL DIGITAL , SURROUND L, R, S

----VIRTUAL dts , ES L, C, R, SL, SR, S, LFE

----VIRTUAL dts L, C, R, SL, SR, LFE

----VIRTUAL PCM L, R

----VIRTUAL ANALOG -

DOLBY D EX DIGITAL, EX L, C, R, SL, SR, S, LFE
DOLBY D DIGITAL L, C, R, SL, SR, LFE

- - DOLBY PL II MV DIGITAL , SURROUND L, R, S
DTS ES dts , ES L, C, R, SL, SR, S, LFE
DTS dts L, C, R, SL, SR, LFE

DOLBY D EX DIGITAL, EX L, C, R, SL, SR, S, LFE
DOLBY D DIGITAL L, C, R, SL, SR, LFE

- - DOLBY PL II MV DIGITAL , SURROUND L, R, S
DTS ES dts , ES L, C, R, SL, SR, S, LFE
DTS dts L, C, R, SL, SR, LFE

DOLBY D EX DIGITAL, EX L, C, R, SL, SR, S, LFE
DOLBY D EX DIGITAL L, C, R, SL, SR, LFE
DTS ES dts , ES L, C, R, SL, SR, S, LFE
DTS ES dts L, C, R, SL, SR, LFE
DOLBY D DIGITAL, EX L, C, R, SL, SR, S, LFE
DOLBY PLII MS DIGITAL L, C, R, SL, SR, LFE

- - DOLBY PL DIGITAL L, R

- - or DOLBY PLII MV DIGITAL , SURROUND L, R, S

- - or DOLBY PLII MS PCM L, R

- - ANALOG ­DTS ES dts , ES L, C, R, SL, SR, S, LFE
DTS dts L, C, R, SL, SR, LFE

- NEO 6 CINEMA PCM L, R

- or NEO 6 MUSIC ANALOG L, R
CSII CINEMA PCM L, R
or CSII MUSIC ANALOG -

M-CH STEREO DIGITAL, EX L, C, R, SL, SR, S, LFE
M-CH STEREO DIGITAL L, C, R, SL, SR, LFE

- - M-CH STEREO DIGITAL L, R

- - M-CH STEREO DIGITAL , SURROUND L, R, S
M-CH STEREO dts , ES L, C, R, SL, SR, S, LFE
M-CH STEREO dts L, C, R, SL, SR, LFE

- - M-CH STEREO PCM L, R

- - M-CH STEREO ANALOG -

- - MOVIE PCM L, R

- - or HALL ANALOG -

Dolby Surr.EX: Dolby Digital stream with Surround EX flag

Dolby D(2ch Surr) : 2channel Dolby Digital stream with Dolby Surround flag

SL/SR = Surround Left and Right speakers

DTS-ES: DTS digital stream with ES flag.

L/R = Front Left and Right speakers

C = Center speaker

SB = Surround back speaker

SW = Sub woofer speaker

2

Bass signal output from Sub Woofer terminal for SR430

0

p

B

X

3

L

,

6CS

o

R

(

S

S

(

)

(

)

(p

g

(p

(p

(p

(p

*Stereo decode : SPK SETUP - BASS MIX : BOTH set

SPK setu

Sub

Front Center

Woofer L/

Yes Large Large Large Large LFE LFE none L+R L+R no output

Small Large Large Large LFE+L+R LFE+L+R L+R L+R L+R no output

None

Surr.

Surr.

DD E

L/R)DTS mES,dE

None no suuround mode

Small Small LFE+SL+SR+Sb LFE+SL+SR

None no suuround mode

rohibit)no suuround mode LFE

None

Small Lar

None Large Large LFE LFE none L+R L+R no output

Small Large Large LFE+L+R+C LFE+L+R+C L+R+C L+R L+R no output

None Large Large LFE+L+R LFE+L+R L+R L+R L+R no output

e Large LFE+C LFE+C C L+R L+R no output

None no suuround mode

Small Small LFE+C+SL+SR+Sb LFE+C+SL+SR

None no suuround mode

rohibit)no suuround mode LFE+C

None

None no suuround mode

Small Small LFE+SL+SR+Sb LFE+SL+SR

None no suuround mode

rohibit)no suuround mode LFE

None

None no suuround mode

Small Small LFE+L+R+SL+SR+Sb LFE+L+R+SL+SR

None no suuround mode

rohibit)no suuround mode LFE+L+R

None

None no suuround mode

Small Small
None(prohibit)no suuround mode LFE+L+R+C

Small Small LFE+L+R+SL+SR+Sb LFE+L+R+SL+SR
None

FE+L+R+C+SL+SR+SbLFE+L+R+C+SL+SR

None no suuround mode

None no suuround mode
None no suuround mode

rohibit)no suuround mode LFE+L+R

SubWoofer Output by Decoded mode

Dolby(AC-

DT

P

Neo2ch)

No output

Stere

PCM:Auto

Virtual

Main spk L fix

3

-MEMO-

4

2. WIRING DIAGRAM

17P

TUNER
MODULE

JFV101

11P

VIDEO

JFV201

9P

JFS09
17P

JFS11
15P

DIGITAL/AUDIO

JFS01
11P

JFS078PJFS10

16P

JFS08

11P

JFS06

10P

JFS03

12P

JFS05

9P

MAIN

JFN509

JFN510

4P

JFN511

3P

3P

JFN512
2P

JFN401
5P

JFN101
16P

JFN507

9P

JFN508
10P

JFM044PJFM05

2P

POWER AMP.

JFM01

12P

JFM02
3P

JFF102
15P

JFF103
4P

FRONT

JFF101
7P

AC PLUG

(/U/L/F)

AC INLET

(/N/K/A)

JFK2
11P

JFK1
9P

6.1CH/
PRE OUT

JW103
2P

TRANSF.

STAND-BY

SUB

JW101
2P

JW102

2P

JW104
5P

JFN7014PJFN102

5P

JFN6014PJFN301

6P

MAIN

TRANSF.

JFN702
7P

JP1
2P

JH01
4P

H/P OUT

JFM03
3P

JFF104

4P

JFL1
4P

STAND-BY

LED

JS1
4P

SURROUND

MODE SEL

POWER SW1

(/N/K/A)

5 6

3. BLOCK DIAGRAM

FM ANT

AM ANT

ANALOG AUDIO

DSS/VCR2 OUT

6.1CH INPUT

DIGITAL AUDIO

VIDEO SWITCH

REMOTE

S-VIDEO

CD IN

TAPE IN

TAPE OUT

CD-R/MD IN

CD-R/MD OUT

VCR1 IN

VCR1 OUT

DSS/VCR2 IN

DVD IN

TV IN

FL

FR

SR

SBL

SW

DIG4 IN

DIG3 IN

DIG2 IN
DIG1 IN

TV IN

DVD IN

VCR1 IN

VCR1 OUT

DSS/VCR2 IN

VCR2 OUT

VCR1 OUT

TUNER

MODULE

C

SL

DVD IN

VCR1 IN

RC-5 IN

RC-5 OUT

Y Signal
X Signal

KSE

Data

BU1924

RDS
/N /A
only

FUNCTION

SEL

FUNCTION

SEL

NJM2296M

REC OUT

REC OUT

Error

to mcu INT

DIG2 OUT

DIG1 OUT

NJM2296MX 2 (Y/C)

TONE

TONE

2CH

ADC

LEVEL SHIFT

DIGITAL IN
RECEIVER

AK4112B

RC-5

Serial to Parallel

74HC4094

TV Monitor OUT

DACLPF

DACLPF

ADC

ADC

TV Monitor OUT

(CVBS)

(S-VIDEO)

DATT

DATT

HPF

HPF

DSP

CS493263

LEVEL SHIFT

16BIT MCU

H8/3026F

M61516FP

AUDIO I/F

BLCK

LRCK

MCLK

To mcu INT

8CH
DAC

LEVEL

SHIFT

F-ROM

MX29LV040QC-90

PT6302-001

FLD DRIVER FL DISPLAY

KEY INPUT

ROTARY

ENCODER

MASTER VOL

24 Pulse

SURR. MODE

12 Pulse

STAND BY

LED

IR

SENSOR

AK4529

+2.5V

+5VD

+12V

Reg

+B(+40V)

Protection 2
to mcu INT

-B(-40V)
+5VV

-5VV

+15V

-15V

BUFF X 7

E-Volume

LPFDACDATT

LPFDACDATT

LPFDACDATT

LPFDACDATT

LPFDACDATT

MUTE Control

FC

MAIN TRANS

Current

Limiter

Regulator

Regulator

FLD AC
FLD AC

-30V

Error

FL/FR

SL/SR

SB

SW

STAND BY

FL

FR

FC

SL

SR

SB

SW

+3.3VL

Reg

+5VL

Reg

P-DOWN

POWER AMP X 6

2SA1941/2SC5198

Protection 2

to mcu INT

SUB TRANS

+12V

FL

FR

FC

SL

SR

SB

TA7317P

DC

CURR.

SENS

FUSE

FUSE

POWER SW

(/N/K/A)

SPK Relay

H/P DET

to mcu

Control

SPK OUT

FL

FR

FC

SL

SR

SB

H/P OUT

PRE OUT

FL/FR/FC

SL/SR

SBL/SBR

SW

SWITCHED

UNSWITCHED

7 8

4. SCHEMATIC DIAGRAM

DIGITAL / AUDIO PCB
(AD/DA)

9 10

POWER AMP PCB

11 12

DIGITAL / AUDIO PCB
(E-VR)

13 14

DIGITAL / AUDIO PCB
(CPU)

15 16

FRONT PCB

17 18

DIGITAL / AUDIO PCB
(DSP)

19 20

MAIN PCB

21 22

STAND-BY PCB

23 24

VIDEO PCB

25 26

6.1CH / PRE OUT PCB

27 28

H/P PCBSURROUND MODE PCB

STAND-BY LED PCB

29 30