Onkyo TX-SR403 Manuale utente

TX-SR403/8340

SERVICE MANUAL

220-230V AC, 50/60HzS MGR

Ref. No. 3861

042005

TX-SR403 Silver and Golden model

AV RECEIVER

MODEL TX-SR403

MODEL TX-SR8340

TX-SR8340 Golden model

220-230V AC, 50/60HzG MGR

RC-605S

TONE +STEREO

LISTENING MODE

DISPLAY

DIGITAL INPUT

DIMMER MEMORY

TUNING MODE

RETURN

TUNING / PRESET

ENTER

SETUP

STANDBY

STANDBY/ON

CLEAR

PHONES MULTl CH DVD VIDEO 1/VCR VIDEO 2 VIDEO 3 TAPE TUNER CD

MASTER VOLUME

A SPEAKERS B

MUTING

MENUTOP MENU

SP A

SETUPRETURN

RANDOM

SUBTITLE

PLAY MODE

AUDIO REPEAT

RC-605S

---

TAPE /AMP

ON STANDBY

DIMMER SLEEP

INPUT SELECTOR

REMOTE MODE

DTAPE TUNER

DVD

MULTICH

LISTENING MODE

DISPLAY

TEST

TONE

CH SEL

SURROUND

STEREO

CINE FLTR

LEVEL

L NIGHT

VOL

CDR

DVD

RECEIVER

+10

CLR

123

456

789

ENTER

DISC

SAFETY-RELATED COMPONENT

WARNING!!

COMPONENTS IDENTIFIED BY MARK ON THE

SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE

CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

REPLACE THESE COMPONENTS WITH ONKYO

PARTS WHOSE PART NUMBERS APPEAR AS SHOWN

IN THIS MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE

MEASUREMENTS TO DETERMINE THAT EXPOSED

PARTS ARE ACCEPTABLY INSULATED FROM THE

SUPPLY CIRCUIT BEFORE RETURNING THE

APPLIANCE TO THE CUSTOMER.

TX-SR403/8340TX-SR403/8340

BLOCK DIAGRAM

FL_PO

FR_PO

CT_PO

SBL_PO

TAPE_OUT_R

TAPE_OUT_L

V2_OUT_L

V2_OUT_R

Z2_R

Z2_L

MIX_R

MIX_L

SOURCE_L

SOURCE_R

RECOUT_L

RECOUT_R

MCH_SR

MCH_SL

MCH_SW

MCH_CT

ADLT+

ADRT+

ADLT-

ADRT-

ADRT+

ADLT+

ADLT-

DAC_FL

DAC_CT

DAC_SW

DAC_FR

DAC_SR

DAC_SBL

DAC_SL

VOLIN_SBR

VOLIN_SBL

RX2

Z2RL

SBRL

SPRLCS

SW_PO

AMUT

SL_PO

SR_PO

RX0

HPIN

SPRLF

TUNER UNIT

NJW1157

TAPE OUT

TAPE IN

VIDEO3 IN

VIDEO2 IN

VIDEO1 OUT

VIDEO1 IN

DVD

(MULTI INPUT)

COAXIAL

DIGITAL IN

OPTICAL RI

INTERFACE

PREOUT

SUBWOOFER

FRONT-A

CENTER

SURROUND

PHONES

FRONT-B

SURROUND

BACK

SPEAKERS

TONE

-6dB

+9.7dB

+20.2dB

DIR

2ch ADC

CS42518

8ch DAC

LPF

DSP

CS494003

FLASH ROM

MX29LV040

LPF

4M Bit

NJU7311

POWER

AMPLIFIER

+29dB

42 46

107

118

106

134

109

110

To Microprocessor

INVERT

VOLUME

FRONT

CENTER

SURROUND

SUBWOOFER

BCDEFGH

TX-SR403/8340TX-SR403/8340

BLOCK DIAGRAM

FL_PO

FR_PO

CT_PO

SBL_PO

TAPE_OUT_R

TAPE_OUT_L

V2_OUT_L

V2_OUT_R

Z2_R

Z2_L

MIX_R

MIX_L

SOURCE_L

SOURCE_R

RECOUT_L

RECOUT_R

MCH_SR

MCH_SL

MCH_SW

MCH_CT

ADLT+

ADRT+

ADLT-

ADRT-

ADRT+

ADLT+

ADLT-

DAC_FL

DAC_CT

DAC_SW

DAC_FR

DAC_SR

DAC_SBL

DAC_SL

VOLIN_SBR

VOLIN_SBL

RX2

Z2RL

SBRL

SPRLCS

SW_PO

AMUT

SL_PO

SR_PO

RX0

HPIN

SPRLF

TUNER UNIT

NJW1157

TAPE OUT

TAPE IN

VIDEO3 IN

VIDEO2 IN

VIDEO1 OUT

VIDEO1 IN

DVD

(MULTI INPUT)

COAXIAL

DIGITAL IN

OPTICAL RI

INTERFACE

PREOUT

SUBWOOFER

FRONT-A

CENTER

SURROUND

PHONES

FRONT-B

SURROUND

BACK

SPEAKERS

TONE

-6dB

+9.7dB

+20.2dB

DIR

2ch ADC

CS42518

8ch DAC

LPF

DSP

CS494003

FLASH ROM

MX29LV040

LPF

4M Bit

NJU7311

POWER

AMPLIFIER

+29dB

42 46

107

118

106

134

109

110

To Microprocessor

INVERT

VOLUME

FRONT

CENTER

SURROUND

SUBWOOFER

BCDEFGH

TX-SR403/8340

SPECIFICATIONS

Audio Outputs

Analog Outputs TAPE, VIDEO1

Subwoofer Pre Outputs 1

Speaker Outputs SP-A (L, C, R, SL, SR, SB) + SP-B (L, R)

Phones 1

Specifications and features are subject to change without notice.

Power Supply AC 220/230 V, 50/60 Hz

Power Consumption 370 W

Stand-by Power Consumption 0.5 W

Dimensions

(W x H x D) 435 x 150 x 369 mm

17-1/8" x 5-7/8" x 14-1/2"

Weight 8.6 kg (19.0 lbs.)

Video Outputs

S-Video MONITOR, VIDEO1

Composite MONITOR, VIDEO1

Audio Inputs

Digital Inputs Optical: 1

Coaxial: 1

Analog Inputs DVD(MULTICHANNEL), VIDEO1,

VIDEO2, VIDEO3, TAPE, CD

Multichannel Inputs 6

General

Power Output

2 channel driven: 110 W + 110 W (6 , 1kHz, JEITA)

Dynamic Power 160 W + 160 W (3 , Front)

125 W + 125 W (4 , Front)

85 W + 85 W (8 , Front)

THD

(Total Harmonic Distortion) 0.08% (Power Rated)

Damping Factor 60 (Front, 1kHz, 8 )

Input Sensitivity and Impedance 200 mV/ 47 k (LINE)

Output Level and Impedance 200 mV/ 470 (REC OUT)

Frequency Response 10 Hz.100 kHz/ +1 dB-3 dB (Direct

mode)

Tone Control 10 dB, 50 Hz (BASS)

10 dB, 20 kHz (TREBLE)

Signal to Noise Ratio 100 dB (LINE IHF-A)

Speaker Impedance 6 -16

Amplifier Section

Input Sensitivity/Output Level

and Impedance 1 Vp-p /75 (S-Video Y)

0.28 Vp-p /75 (S-Video C)

1 Vp-p /75 (Composite)

Video Section

Tuning Frequency Range 87.5 MHz. 108.0 MHz

Usable Sensitivity Stereo: 17.2 dBf 2 V(75 IHF)

Mono: 11.2 dBf 1 V(75 IHF)

Signal to Noise Ratio Stereo: 70 dB (IHF-A)

Mono: 76 dB (IHF-A)

THD Stereo: 0.3% (1kHz)

Mono: 0.2% (1kHz)

Frequency Response 30 Hz -15 kHz / 1 dB

Stereo Separation 45 dB (1kHz)

Tuning Frequency Range 522 kHz-1611 kHz

Usable Sensitivity 30 V

Signal to Noise Ratio 40 dB

THD 0.70%

Tuner Section

Video Inputs

S-Video DVD, VIDEO1, VIDEO2

Composite DVD, VIDEO1, VIDEO2, VIDEO3

SERVICE PROCEDURE

TX-SR403/8340

1. Replacing the fuses

This symbol located near the fuse indicates that the

fuse used is show operating type, For continued protection against

fire hazard, replace with same type fuse, For fuse rating, refer to

the marking adjacent to the symbol.

Ce symbole indique que le fusible utilise est e lent.

Pour une protection permanente, n'utiliser que des fusibles de meme

type. Ce demier est indique la qu le present symbol est apposre.

2. To initialize the unit

The AV receiver uses a battery-less memory backup system in order to retain radio presets and other settings

when it's unplugged or in the case of a power failure.

Although no batteries are required, the AV receiver must be plugged into an AC outlet in order to charge the

backup system. Once it has been charged, the AV receiver will retain the settings for several weeks,

although this depends on the environment and will be shorter in humid climates.

1. Press and the hold down the VIDEO 1/VCR button , then press the STANDBY/ON button when the unit is Power ON.

2. After " Clear " is displayed, the preset memory and each mode stored in the memory, are initialized and will return to

the factory settings.

4. Memory Backup

<Note>

Main microprocessor Q701 only.

1. Press and the hold down the DISPLAY button , then press the STANDBY/ON button when the unit is Power on.

Version is displayed on FL display only for 3seconds.

2. Press the STANDBY/ON button to Power off.

3. To check version of microprocessor

Ver.1.01/05305a

Ex.

REF NO.

F902

F902 or

F903

F903 or

F6901

F6901 or

F6902

F6902 or

PART NAME

FUSE

DESCRIPTION

3.15A-SE-EAK FUSE

3.15A-SE-TL250V

2.5A-SE-EAK FUSE

2.5A-SE-TL250V

8A-UL

8A-T/UL-ST2

8A-UL

8A-T/UL-ST2

PART NO.

252076

252242

252276

252075

252241

252275

252198

252261

252198

252261

REMARKS

OPERATION CHECK-1

SPEAKER PROTECT-1 (DC VOLTAGE DETECTION)

TX-SR403/8340

1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON.

" Test - _ " is displays it only for 5seconds.

2. Press the VIDEO 3 button, while the character of " Test - _ " is displayed.

Unit will be in the state of " Test-4-00 ".

3. Repeatedly press TONE+button until the character of " Test-4-21 " is displayed.

[Procedure]

<Note>

No load. No input.

Test - _

Test - 4-00

[When]

1. Exchange power transistors (Q6050 - Q6065).

2. Exchange amplifier PC board ass'y (NAAF-8523).

Test - 4-21

Checking the operation starts automatically as follows.

Test - 4-21

Test - 4-22

Test - 4-25

Test - 4-23

Test - 4-24

Protect OK

Protect

Protect OK

Test - 4-35

Clear Turn off

Front L ch

Check

If all channel are OK, the character of " Test - 4 - 35 " is displayed.

4. Press the STANDBY/ON button.

Front R ch

Check

Center ch

Check

Surround L ch

Check

Surround R ch

Check

Blinks

Test - 4-26

Protect OK

Surround Back ch

Check

OPERATION CHECK-2

SPEAKER PROTECT-2 (CURRENT DETECTION)

TX-SR403/8340

1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON.

" Test - _ " is displays it only for 5seconds.

2. Press the VIDEO 3 button, while the character of " Test - _ " is displayed.

Unit will be in the state of " Test-4-00 ".

3. Repeatedly press TONE+button until the character of " Test-4-35 " is displayed.

4. Connect the Dummy load of 3ohms to the Front Lch speakers terminal.

At this time, check the speaker relay is not turned off.

5. Connect the dummy load of 1ohm to the Front Lch speakers terminal.

At that time, you check the speaker relay is turned off and " Protect " is displayed.

Disconnect the dummy load at once when check the display of " Protect ".

6. Check other channels according to the same procedure.

[Procedure]

<Note>

No input.

Do not check two or more channels at the same time.

Do not connect dummy load to speaker terminals fro seconds 2 or more.

Test - _

Test - 4-00

[When]

1. Exchange power transistors (Q6050 - Q6065).

2. Exchange amplifier PC board ass'y (NAAF-8523).

Test - 4-35

Clear Turn off

7. Press the STANDBY/ON button.

Test - 4-35

Protect

Test - 4-35

Blinks

OPERATION CHECK-3

CONTROL OF POWER SUPPLY (OUTPUT SENSOR AND THERMAL SENSOR)

TX-SR403/8340

Test - _

Test - 4-00

Test - 4-37

Clear Turn off

Test - 4-37 FM STEREO

Blinks

Ver. 0.50/05131a

<Ex.>

<Ex.> T: 25 C/ 77 F

Clear Turn off

Output sensor

1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON.

" Test - _ " is displays it only for 5seconds.

2. Press the VIDEO 3 button, while the character of "Test - _" is displayed.

Unit will be in the state of " Test-4-00 ".

3. Repeatedly press TONE+button until the character of " Test-4-37 " is displayed.

4. Adjusts MASTER VOLUME to Max. position.

At this time, check the character of " FM STEREO " displayed.

And, check relay RL6901 and RL6902 are turned off in 2- 3 seconds.

5. Press the STANDBY/ON button.

[Procedure]

<Note>

No output. No input.

[When]

1. Exchange power transistors (Q6050 - Q6065).

2. Exchange power amplifier PC board ass'y (NAAF-8523).

3. Exchange thermal sensor PC board ass'y (NAETC-8526).

Thermal sensor

1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power ON.

"Ver. 0.50/05131a " is displays it only for 2seconds.

2. Press the TONE button, while the character of " Ver.0.50/05131a " is displayed.

3. Check the displayed temperature is +/-20 C of the ambient temperatures.

4. Press STANDBY/ON button.

OPERATION CHECK-4

DSP DEBUG MODE

TX-SR403/8340

E1A48K015FF 23o

Ver. 0.50/05131a

<Ex.>

1 42 5 6 87 103 9

Check the operation of the circuit around DSP by the display in this mode.

This information helps to pursue the faulty point.

UNLOCK

E= UNLOCK

= LOCK

Digital Selecter

D= DIGITAL

A= ANALOG

1 = COAX1

2 = OOAX2

3 = OPT1

4 = OPT2

5 = OPT3

7 = FRONT

Sampling Frequency

96 = 96kHz

48 = 48kHz

44 = 44kHz

32 = 32kHz

-- = Not detect

AUTOBOOT DSP AB CODE

0 = FLASH

1 = ab_ac3_pl2

2 = ab_dts_pl2

3 = ab_neo6

4 = sgen_ab

5 = ab_pl2fs

6 = ab_dts_6dol

7 = ab_dts9624

8 = aac_pl2

Pre Emphasis

K = OFF

e = ON

DSP Detect Format

00 = Null

01 = Dolby Digital

03 = Pause

04 = MPEG1 L1

05 = MPEG1 L23/ MPEG2 w/o

06 = MPEG2 w/e

07 = MPEG2 AAC

08 = MPEG2 L1

09 = MPEG2 L2/3

DSP Decode

o = Decode OK

x = Decode NG

-- = Analog in

To set in DSP debug mode

1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power ON.

"Ver. 0.50/05131a " is displays it only for 2seconds.

2. Press the DISPLAY button, while the character of " Ver.0.50/05131a " is displayed.

To exit

Press STANDBY/ON button.

--------- DIR --------- ------ MEMORY/DOWNLOAD -----

DIR Status

0 = ANALOG

1 = PCM

2 = NOT_PCM

3 = DATA

4 = DTSCD

5 = MCH

6 = NOT DECIED

------------------------- DSP ----------------------------------------

Content of display

AUTOBOOT DSP C CODE

0 = ac_dts9624

1= c_neo6

2= c_oos_no_sd

3= c_oos

4= c_oob

5= c_pl2

6= c_pl2xthx

7= c_thx

8= c_spsetup

9= version

DSP Status

00 = Power off

01 = Power on wait

10 = DSP reset

11 = DSP reset wait

12 = DSP AB boot ready

13 = DSP AB boot start

14 = DSP AB boot

15 = DSP C boot ready

16 = DSP C boot start

17 = DSP C boot

18 = DSP soft reset

20 = DSP C app start

821 = DSP C HW Config set

22 - 2A = DSP C SW Config set

3F = DSP C kick start

40 = DSP AB App start

41 = DSP AB HW Config set

42 - 4B = DSP AB SW Config set

AF = DSP ab kick start

0B = DTS1

0C = DTS2

0D = DTS3

1B = MPEG2 AAC1

1C = MPEG2 AAC2

20 = Silent

22 = DTS CD

23 = PCM

TX-SR403/8340

EXPLODEDVIEWS-1

A003

x 28 pcs.

A004

x 4 pcs.

A051

x 6 pcs.

A004

x 2 pcs.

A023

x 4 pcs.

A004

x 3 pcs.

A003

x 2 pcs.

A003

x 3 pcs.

A013

x 6 pcs. A015

x 3 pcs.

A016

x 2 pcs.

A055

x 4 pcs.

A056

x 8 pcs.

A004

x 4 pcs.

A002

x 13 pcs.

U18P101

P703

T901

P901

F902

A401

A028

A405

A050

A052

A413

U01

U03

U04

U05

U06

U14

U11

U13

U15

U02

U16

U17

U08

U09

A001 A025

A025

A412

A065

A406

A004

A420

A430

A411

A402

F903c

F903

A010

A011

A040

A045

A048

A004

A046

A004

A014 A030

F6901

F6902 A004

x 4 pcs.

A004

x 3 pcs

A025

A014

Refer to <Fig-1> in

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