Onkyo TX-RZ720 Bedienungsanleitung

Service Manual

Published by Onkyo & Pioneer Corporation Grobal CS Department

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 MESUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE

ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the

necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this

manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to

perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

Caution:

If Main or Primary fuse enters in the Neutral line of AC Mains supply or if there is possibility of Main or Primary Fuse entering in the Neutral

line of AC Mains supply, then AC Mains supply must be disconnected to de-energize the circuit.

Ref.No. : 4650

✔Pre Issue (2017-Apr)

✔Final Issue (2017-Jul)

TX-RZ720

AV RECEIVER

Title Page

CONTENTS

✔Title Page (This page)

✔Note for Parts List

✔Panel

✔Reset

✔Amp Diag Mode afterAbnormal Conditions

✔Wi-Fi 5GHzSetting

✔Model and Destination

✔Firmware

✔Check Idling Current

✔Hookup and Setting

✔Trouble Shoot

✔Disassembly

✔Schematic Diagram

✔Exploded View

✔Appendix

MUSIC OPTIMIZER button/indicator (North Americanmodels)

PURE AUDIO button/indicator (European, Australian and Asian models)

543

1 6

543

1 6

COMMON

D 120V AC

G 220～230V

H 220～230／240V

J 100V AC

M 220～240V AC

P 230V AC

U 100～240V AC

V 110～240V

W 120V／220～240V

Z ※1

Speaker System (without AMP.) :

0 Passive Subwoofer

F Front Speaker

C Center Speaker

R Rear Speaker

B Back Speaker

A Australia

B United Kingdom

C North American

D USA

F Taiwan

J Japan

K Korea

L Russia

P Europe

Q Hong Kong

R China

S Brazil

T Thai

U Worldwide

Speaker System (without AMP.) :

L Left channel

R Right channel

0 Center channel

Voltage（電圧記号） Destination（仕向地記号）

When parts list is EXCEL file, please refer to the following explanation about file name.

P L _ T X – S R 3 4 3 ( B ) M J J . x l s x

Model No. Color

(X) Not related to color

(B) Black (M) Wood

(BR) Brown (O) Orange

(G) Gold (R) Red

(GR) Green (S) Silver

(H) Gray (V) Violet

(K) Black (W) White

(L) Blue (Y) Yellow

(LB) Light Blue

Destination（仕向地記号）

Look at the rear panel serial number 6 digit.

○○○○○J○○○○○○○○○○

Voltage（電圧記号）

Look at the rear panel serial number 5 digit.

○○○○J○○○○○○○○○○○

Color（色記号）

Note for Parts List

File Name of Parts List File (EXCEL File)

※1 There is a charge function and a power supply (adapter) is needed, but an adapter isn't bundled.

（充電機能があり、電源（アダプタ）を要するが、アダプタを付属しないもの）

543

1 6

543

1 6

TX-RZ720

Panel

Front Panel

Rear Panel

Remote Control Unit

Accessory

Panel

RC-911R

1. Remote controller (RC-911R) (1)

2. Batteries (AAA/R03) (2)

3. Speaker setup microphone (1)

4. Indoor FM antenna (1)

5. AM loop antenna (1)

6. Power cord (For North American, European

and Asian models) (1)

MUSIC OPTIMIZER button/indicator (North Americanmodels)

PURE AUDIO button/indicator (European, Australian and Asian models)

(Australian models)

543

1 6

543

1 6

TX-RZ620/RZ720/RZ820

Reset

【STORE】

[ SETUP ] + [ ENTER ] x 2

【RESET】

1. Volume 40

2. [ TONE ] + [ ON/STANDBY ] → [ RETURN ] x 2

3. Unplug the power cord from AVR after the disappeared "All Clear" of FL tube andAVR goes standby.

【RECALL】

[ SETUP ] + [ RETURN ] x 2

Detail key operation is here.

Reset

Amp Diag Mode after Abnormal Conditions

543

1 6

543

1 6

COMMON

Protect Mode

The unit goes into standby automatically when detect the abnormal condition of thermal detection, dc voltage detection or current detection. (e.g. TX-NR555 block diagram below)

BACLA PCB

Info

BAAF PCB Info

BAETC

PCB Info

BAPS PCB Info

BAPRC PCB Info

MPU

Q7009

VOLTAGE

DRIVE

RELAY

RL6501

(FL/FR)

Power amp.

(Front L)

Q6001

Q6021

SPRLF

THERMAL

DETECT

Q6800

POWER

TRANS.

T901

CURRENT

DETECT

Power

Supply

AC IN

PON_MAIN PON_MAIN

Relay

RL9001

FUSE

F9002 SEC-1

(HIGH)

SEC-1

(LOW) FUSE

F6901

F6902

RELAY

RL6911

RL6912

Power

Supply

(H)

(L)

(H)

(L)

SEC1H

IPRO

DETECT

VPRO

IPROTECT

VPROTECT

VOLTAGE

DETECT

VOLH

THERMAL

P6800A

P9002

P8002

P2800B

SUB

TRANS. Power Supply

for STANDBY VPRO: DC voltage detection

IPRO: Current detection

SPEAKER - OUT

Amp Diag Mode after Abnormal Conditions

543

1 6

543

1 6

COMMON

PCB Information

BAPRC BAAF BAETC BAPS

TX-NR474 BAPRC-2387 TX-NR474 BAAF-2388 TX-NR474 BAETC-2390 TX-NR474 BAPS-2352

TX-NR575E

↑TX-NR575E ↑TX-NR575E ↑TX-NR575E BAPS-2361

TX-8270

↑TX-8270 ↑TX-8270 ↑TX-8270 BAPS-2399

DTM-7

↑DTM-7 ↑DTM-7 ↑DTM-7 BAPS-2399

TX-NR575 BAPRC-2409 TX-NR575 BAAF-1979 TX-NR575 BAETC-1980 TX-NR575 BAPS-1984

DRX-2.1

↑DRX-2.1 ↑DRX-2.1 ↑DRX-2.1 BAPS-2000

TX-NR676

↑TX-NR676 ↑TX-NR676 ↑TX-NR676 BAPS-1984

TX-NR676E

↑TX-NR676E ↑TX-NR676E ↑TX-NR676E BAPS-1984

TX-RZ620

↑TX-RZ620 ↑TX-RZ620 ↑TX-RZ620 BAPS-1984

DRX-3.1

↑DRX-3.1 ↑DRX-3.1 ↑DRX-3.1 BAPS-2000

HT-R997

↑HT-R997 ↑HT-R997 ↑HT-R997 BAPS-1984

TX-NR777

↑TX-NR777 ↑TX-NR777 ↑TX-NR777 BAPS-1984

TX-RZ720

↑TX-RZ720 ↑TX-RZ720 ↑TX-RZ720 BAPS-1984

TX-RZ820

↑TX-RZ820 ↑TX-RZ820 ↑TX-RZ820 BAPS-2031

BACLA BATRM

TX-NR474 BACLA-2351 TX-NR474 BAAF-2388

TX-NR575E BACLA-2360 TX-NR575E

↑

TX-8270 BACLA-2398 TX-8270

↑

DTM-7 BACLA-2398 DTM-7

↑

TX-NR575 BACLA-1988 TX-NR575

BATRM-2023

DRX-2.1 BACLA-2004 DRX-2.1

↑

TX-NR676 BACLA-1988 TX-NR676

↑

TX-NR676E BACLA-1988 TX-NR676E

↑

TX-RZ620 BACLA-1988 TX-RZ620

↑

DRX-3.1 BACLA-2004 DRX-3.1

↑

HT-R997 BACLA-1988 HT-R997

↑

TX-NR777 BACLA-1988 TX-NR777

↑

TX-RZ720 BACLA-1988 TX-RZ720

↑

TX-RZ820 BACLA-2030 TX-RZ820

↑

Amp Diag Mode after Abnormal Conditions

543

1 6

543

1 6

COMMON

Self-diagnostics

This function is for avoiding the rupture of electrolytic capacitors with amplifier circuit

failure during power-ON.

Operation of Self-diagnostic

Self-diagnostic will start at the timing of next power on, after goes to the protect mode

by Current detection or DC voltage detection.

Only On/Standby key could work in this mode. Also remote control does not work.

However, the CLEAR operation is enabled.

During Self-diagnostic, the power supply for amplifier circuit become low voltage

state(SEC1-LOW), and the speaker relay will be turned off. Then, MPU will check each

amplifier circuits Internally by entering the test signal (20 kHz,-20 dBFS sine wave) to

each channel from DSP.

MPU will judge the amplifier circuit is good or not from VOLH value.

The normal range of VOLH value is 0.04 V < VOLH < 0.20 V.

If VOLH value is in the out of this range, it will be judged as NG (No good).

No problem found

When protected by current detection, and no problem found, "CHECK SP WIRE“ will be displayed.

In this State, Only the On/Standby key is effective. And if do not anything for 3 minutes, unit goes

into standby automatically.

When protected by a DC voltage detection, and no problem found, unit goes into normal

operation.

Problem found

When judged as there is a problem on any channel, the information of channel that has a problem

will be displayed as in the right figure.

In this State, Only the On/Standby key is effective. Also remote control does not work. If do not

anything for 3 minutes, unit goes into standby automatically. This state will keep also after unit

turn on/off, or AC unplugged.

the power supply for amplifier circuit become low voltage state(SEC1-LOW), and the speaker

relay will be turned off.

Display of during Self-diagnostics

A M P D i a g M o d e

2 Line FL tube type

“Mode” This part display the channel which is currently checked. (E.g. "[FL]", etc.)

A M P D i a g M o d e

1 Line FL tube type

Display of when problem found

N G C H :

L C R S L S R B L B

N G : L C R S L S R B L B R

2 Line FL tube type

1 Line FL tube type

S L

S R

B L

B R

Front L channel

Center channel

Front R channel

Surround L channel

Surround R channel

Surround back R channel

Surround back L channel

Amp Diag Mode after Abnormal Conditions

543

1 6

543

1 6

COMMON

Repair Process and How to Confirm

Confirmation of the protect cause

While NG channel is displayed, You can confirm the protect cause by following the step below.

1. Press the Enter button

2. The protect cause are displayed for 5 seconds.

Please check the around of those amplifier circuit and repair it.

Clear of NG CH information

After repair, you can clear NG CH information by following the steps below.

1. Press the On/Standby key while pressing the Enter key.

2. Display as in the right figure appears.

3. Unit goes into Standby automatically after 5 seconds.

Self-diagnostic will start again at the timing of next power on.

By this, You can verify whether repair was properly or not.

If problem found after repair, please re-check the around of its circuit.

Cancel of Self-diagnostic

You can cancel this mode by clear operation (press Standby key while pressing CBL/SAT key).

After cancel this mode, receiver will be started as normal operation.

Manual Execution of Self-diagnostic

1. [DIMMER] + [ON/STANDBY] x 2

Main Firmware Version will appear on the main unit’s display.

2. [SETUP] or [HOME]

Service information will appear on the main unit’s display

3. [ENTER]

Display as in the right figure appears.

4. [STANDBY/ON]

Unit will go into standby.

5. [STANDBY/ON]

Unit will turn on. Then self-diagnostic will start automatically.

Protected by current detection

Protected by DC Voltage detection

D E T . P R O T E C T : I

D E T . P R O T E C T : V

N G C H C L E A R

Clear of NG CH information

A M P D I A G T E S T O N

Manual Execution of Self-diagnostic

Amp Diag Mode after Abnormal Conditions

543

1 6

543

1 6

COMMON

Service information 1/2

[CUROR UP] [CURSOR DOWN]

[CURSOR UP] [CURSOR DOWN]

Displaying Service information

This service informationdisplay system is helpful in analyze the status when the unit goes into

Protect mode and is powered off. Pay attention that the status will change if a button is pushed.

How to enter to service information mode.

Step1 :

[DIMMER] + [ON/STANDBY] x 2

Step2 :

[SETUP] or [HOME]

Step3 :

[SETUP] or [HOME]

Note)

If press [ENTER] during service information mode, the following display will appear.

And Self-diagnostic will start at when next turn on.

How to change History No. 1 ~ 3.

[CURSOR UP] or [CURSOR DOWN]

How to exit the service information mode.

[ON/STANDBY]

[RETURN] (to initialize the data in the service information.)

Normal display

M1.xx / xxxxxAEx The version of main microprocessor.

(displayed only for 3 seconds)

1 -8 0 F 2 7 D D

Power off Cause

T : Thermal Protect

V : Voltage Protect

I : Current Protect

- : Other

Temperature

: xx F or xx C Volume Level Listening Mode

Please see the “Listening Mode

code list” on the next page.

1 01: 23 10h Information Displayed

(Record this Information)

Time after Power on

xx : xx Cumulative operation time after Reset

: xx h

Protect Data CLR

Normal display

History No.

: 1 ~ 3

(1 is latest.)

1 01: 23 10h

2 01: 47 8h

3 00: 00 00h

1 I 8 0 F 3 0 D D

2 I 9 1 F 2 7 D D

3 -0 0 F 0 0 A

T : 0 I : 2 V : 0 No Use

T : Thermal Protect

[SETUP] or [HOME]

History No.

: 1 ~ 3

(1 is latest.)

Count of each protect

I : Current Protect

V : Voltage Protect

Amp Diag Mode after Abnormal Conditions

543

1 6

543

1 6

COMMON

Listening Mode Code List

Service Information 2/2

NORMAL_LMD_BEGIN

LAST

PURE

DIRECT

STEREO

MONO

ORCHESTRA

UNPLUGGED

STUDIOMIX

TVLOGIC

ALLCHST

FULLMONO

RPG

ACTION

ROCKBAND

SPORTS

WHOLEHOUSE

RPG_GENRE

ACTION_GENRE

ROCKBAND_GENRE

SPORTS_GENRE

NORMAL_LMD_END

20 SURR_LMD_BEGIN

21 SURR_20_PLII_MOVIE

22 SURR_20_PLII_MUSIC

23 SURR_20_PLII_GAME

24 SURR_20_PLIIX_MOVIE

25 SURR_20_PLIIX_MUSIC

26 SURR_20_PLIIX_GAME

27 SURR_20_PLIIZ

28 SURR_20_NEO6_MOVIE

29 SURR_20_NEO6_MUSIC

2A SURR_20_NEURAL_MUSIC

2B SURR_20_NEURAL_CINEMA

2C SURR_51_OFF

2D SURR_51_MTR

2E SURR_51_DSC

2F SURR_51_NEO6

30 SURR_51_EX

31 SURR_51_PLIIX_MOVIE

32 SURR_51_PLIIX_MUSIC

33 SURR_51_PLIIZ

34 SURR_51_NEURAL_CINEMA

35 SURR_20_NEOX_CINEMA

36 SURR_20_NEOX_MUSIC

37 SURR_20_NEOX_GAME

38 SURR_51_NEOX_CINEMA

39 SURR_51_NEOX_MUSIC

40 SURR_51_NEOX_GAME

41 SURR_20_DOLBY_SURR

42 SURR_51_DOLBY_SURR

43 SURR_LMD_END

48 DTSSS_LMD_BEGIN

49 DTSSS_20_NEO6_MUSIC

4A DTSSS_20_NEO6_CINEMA

4B DTSSS_51

4C DTSSS_LMD_END

THX_MUSIC_LMD_BEGIN

THX_20_PLII_MUSIC

THX_20_PLIIX_MUSIC

THX_20_PLIIZ_MUSIC

THX_20_NEO6_MUSIC

THX_20_NEURAL_MUSIC

THX_51_OFF_MUSIC

THX_51_MTR_MUSIC

THX_51_DSC_MUSIC

THX_51_PLIIX_MUSIC

THX_51_PLIIZ_MUSIC

THX_51_NEO6_MUSIC

THX_51_NEURAL_MUSIC

THX_20_NEOX_MUSIC

THX_51_NEOX_MUSIC

THX_20_DOLBY_SURR_MUSIC

THX_51_DOLBY_SURR_MUSIC

THX_MUSIC_LMD_END

THX_GAME_LMD_BEGIN

THX_20_PLII_GAME

THX_20_PLIIX_GAME

THX_20_PLIIZ_GAME

THX_20_NEURAL_GAMES

THX_51_OFF_GAMES

THX_51_MTR_GAMES

THX_51_DSC_GAMES

THX_51_PLIIX_GAME

THX_51_PLIIZ_GAMES

THX_51_NEO6_GAMES

THX_51_NEURAL_GAMES

THX_20_NEOX_GAMES

THX_51_NEOX_GAMES

THX_20_DOLBY_SURR_GAME

THX_51_DOLBY_SURR_GAME

THX_GAME_LMD_END

90 THX_CINEMA_LMD_BEGIN

91 THX_20_PLII_MOVIE

92 THX_20_PLIIX_MOVIE

93 THX_20_PLIIZ_CINEMA

94 THX_20_NEO6_MOVIE

95 THX_20_NEURAL_CINEMA

96 THX_51_OFF_CINEMA

97 THX_51_MTR_CINEMA

98 THX_51_DSC_CINEMA

99 THX_51_NEO6_CINEMA

9A THX_51_PLIIX_MOVIE

9B THX_51_PLIIZ_CINEMA

9C THX_51_NEURAL_CINEMA

9D THX_51_EX

9E THX_20_NEOX_CINEMA

9F THX_51_NEOX_CINEMA

A0 THX_20_DOLBY_SURR_CINEMA

A1 THX_51_DOLBY_SURR_CINEMA

A2 THX_CINEMA_LMD_END

B0 THX_U2GAME_LMD_BEGIN

B1 THX_20_PLII_SLCT2_GAME

B2 THX_20_PLIIZ_SLCT2_GAME

B3 THX_51_SLCT2_GAM

B4 THX_51_PLIIZ_SLCT2_GAME

B5 THX_U2GAME_LMD_END

B6 THX_U2MUSIC_LMD_BEGIN

B7 THX_51_SLCT2_MUS

B8 THX_51_PLIIZ_SLCT2_MUSIC

B9 THX_U2MUSIC_LMD_END

THX_U2CINEMA_LMD_BEGIN

THX_51_SLCT2_CIN

THX_51_PLIIZ_SLCT2_CINEMA

THX_U2CINEMA_LMD_END

D0 AUDYSSEY_LMD_BEGIN

D1 AUDYSSEY_20_PLII_MUSIC

D2 AUDYSSEY_20_PLIIX_MUSIC

D3 AUDYSSEY_20_NEO6_MUSIC

D4 AUDYSSEY_20_NEURAL_CINEMA

D5 AUDYSSEY_20_NEURAL_MUSIC

D6 AUDYSSEY_20_PLII_MOVIE

D7 AUDYSSEY_20_PLIIX_MOVIE

D8 AUDYSSEY_20_NEO6_MOVIE

D9 AUDYSSEY_20_PLII_GAME

DA AUDYSSEY_20_PLIIX_GAME

DB AUDYSSEY_51_OFF

DC AUDYSSEY_51_PLIIX_MUSIC

DD AUDYSSEY_51_PLIIX_MOVIE

DE AUDYSSEY_51_NEO6

DF AUDYSSEY_51_NEURAL_CINEMA

E0 // AUDYSSEY_51_NEURAL_MUSIC

E1 AUDYSSEY_51_EX

E2 AUDYSSEY_LMD_END

F0 SPECIAL_LMD_BEGIN

F1 TESTTONE

F2 TESTTHR

F3 TESTAUTO

F4 ASC

F5 FLASH

F6 DEBUGMODE

F7 FLASH2

F8 FLASH3

F9 FLASH4

FA FLASH_CHECK

FB SPECIAL_LMD_END

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