Onkyo-TXNR676-avr-sm 电路图 维修手册.pdf

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1、Service Manual Published by Onkyo 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

2、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 N

3、eutral 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. : 4649 Pre Issue (2017-Apr) Final Issue (2017-Jul) TX-NR676/NR676E AV RECEIVER Title Page C

4、ONTENTS Title Page (This page) Note for Parts List Panel Reset Amp Diag Mode after Abnormal Conditions Wi-Fi 5GHz Setting Firmware Model and Destination Check Idling Current Hookup and Setting Trouble Shoot Disassembly Schematic Diagram Exploded View Appendix MUSIC OPTIMIZER button/indicator (North

5、American models) PURE AUDIO button/indicator (European, Australian, Taiwanese and Asian models) RadioFans.CN 收音机爱 好者资料库 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON D 120V AC G 220230V H 220230240V J 100V AC M 220240V AC P 230V AC U 100240V AC V 110240V W 120V220240V Z 1 Speaker System (without AM

6、P.) : 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 Cen

7、ter 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 (C) Cherry (P) Pink (G) Gold (R) Red (GR)

8、 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 Th

9、ere is a charge function and a power supply (adapter) is needed, but an adapter isnt bundled. （充電機能、電源（）要、付属） RadioFans.CN 收音机爱 好者资料库 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 TX-NR676/676E Panel Front Panel Rear Panel Remote Control Unit Accessory RC-911R 1. Remote controller (RC-911R) (1) 2. Batteri

10、es (AAA/R03) (2) 3. Speaker setup microphone (1) Used during Initial Setup. 4. Indoor FM antenna (1) 5. AM loop antenna (1) 6. Power cord (For Taiwanese models only) (1) (Taiwanese models) MUSIC OPTIMIZER button/indicator (North American models) PURE AUDIO button/indicator (European, Australian, Tai

11、wanese and Asian models) RadioFans.CN 收音机爱 好者资料库 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 TX-NR676/NR676E 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 and AVR goes standby. 【RECALL】 SE

12、TUP + RETURN x 2 Reset Amp Diag Mode after Abnormal Conditions 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 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)

13、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) FUS

14、E F6901 F6902 RELAY RL6911 RL6912 Power Supply (H) (L) (H) or (L) SEC1H IPRO DC DETECT VPRO IPROTECT VPROTECT VOLTAGE DETECT VOLH 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 C

15、onditions 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON PCB Information BAPRCBAAFBAETCBAPS TX-NR474BAPRC-2387TX-NR474BAAF-2388TX-NR474BAETC-2390TX-NR474BAPS-2352 TX-NR575ETX-NR575ETX-NR575ETX-NR575EBAPS-2361 TX-8270TX-8270TX-8270TX-8270BAPS-2399 DTM-7DTM-7DTM-7DTM-7BAPS-2399 TX-NR575BAPRC-2409TX-NR

16、575BAAF-1979TX-NR575BAETC-1980TX-NR575BAPS-1984 DRX-2.1DRX-2.1DRX-2.1DRX-2.1BAPS-2000 TX-NR676TX-NR676TX-NR676TX-NR676BAPS-1984 TX-NR676ETX-NR676ETX-NR676ETX-NR676EBAPS-1984 TX-RZ620TX-RZ620TX-RZ620TX-RZ620BAPS-1984 DRX-3.1DRX-3.1DRX-3.1DRX-3.1BAPS-2000 HT-R997HT-R997HT-R997HT-R997BAPS-1984 TX-NR777

17、TX-NR777TX-NR777TX-NR777BAPS-1984 TX-RZ720TX-RZ720TX-RZ720TX-RZ720BAPS-1984 TX-RZ820TX-RZ820TX-RZ820TX-RZ820BAPS-2031 BACLABATRM TX-NR474BACLA-2351TX-NR474BAAF-2388 TX-NR575EBACLA-2360TX-NR575E TX-8270BACLA-2398TX-8270 DTM-7BACLA-2398DTM-7 TX-NR575BACLA-1988TX-NR575BATRM-2023 DRX-2.1BACLA-2004DRX-2.

18、1 TX-NR676BACLA-1988TX-NR676 TX-NR676EBACLA-1988TX-NR676E TX-RZ620BACLA-1988TX-RZ620 DRX-3.1BACLA-2004DRX-3.1 HT-R997BACLA-1988HT-R997 TX-NR777BACLA-1988TX-NR777 TX-RZ720BACLA-1988TX-RZ720 TX-RZ820BACLA-2030TX-RZ820 Amp Diag Mode after Abnormal Conditions 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMM

19、ON 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

20、. 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

21、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

22、). 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 f

23、ound, 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 fo

24、r 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 F

25、L 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 R N G : L C R S L S R B L B R 2 Line FL tube type 1 Line FL tube type L C R S L S R B L B R Front L chann

26、el 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 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON Repair Process and How to Confirm Confirmation of the protect cause While NG channel is displ

27、ayed, 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

28、 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

29、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. DI

30、MMER + ON/STANDBY x 2 Main Firmware Version will appear on the main units display. 2. SETUP or HOME Service information will appear on the main units 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-diagnosti

31、c 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 5 4 3 2

32、1 6 D C A B D C A B 5 4 3 2 1 6 COMMON Service information 1/2 CUROR UP CURSOR DOWN CURSOR UP CURSOR DOWN Displaying Service information This service information display system is helpful in analyze the status when the unit goes into Protect mode and is powered off. Pay attention that the status wil

33、l 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 c

34、hange 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 : Th

35、ermal 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

36、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 Protec

37、t V : Voltage Protect Amp Diag Mode after Abnormal Conditions 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON Listening Mode Code List Service Information 2/2 00 NORMAL_LMD_BEGIN 01 LAST 02 PURE 03 DIRECT 04 STEREO 05 MONO 06 ORCHESTRA 07 UNPLUGGED 08 STUDIOMIX 09 TVLOGIC 0A ALLCHST 0B FULLMONO 0C TD

38、 0D RPG 0E ACTION 0F ROCKBAND 10 SPORTS 11 WHOLEHOUSE 12 RPG_GENRE 13 ACTION_GENRE 14 ROCKBAND_GENRE 15 SPORTS_GENRE 12 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_PLI

39、IZ 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_MU

40、SIC 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 50 THX_MUSIC_LMD_BEGIN 51 THX_20_PLII_MUSIC 52 THX_20_

41、PLIIX_MUSIC 53 THX_20_PLIIZ_MUSIC 54 THX_20_NEO6_MUSIC 55 THX_20_NEURAL_MUSIC 56 THX_51_OFF_MUSIC 57 THX_51_MTR_MUSIC 58 THX_51_DSC_MUSIC 5A THX_51_PLIIX_MUSIC 5B THX_51_PLIIZ_MUSIC 5C THX_51_NEO6_MUSIC 5D THX_51_NEURAL_MUSIC 5E THX_20_NEOX_MUSIC 5F THX_51_NEOX_MUSIC 60 THX_20_DOLBY_SURR_MUSIC 61 TH

42、X_51_DOLBY_SURR_MUSIC 62 THX_MUSIC_LMD_END 70 THX_GAME_LMD_BEGIN 71 THX_20_PLII_GAME 72 THX_20_PLIIX_GAME 73 THX_20_PLIIZ_GAME 74 THX_20_NEURAL_GAMES 75 THX_51_OFF_GAMES 76 THX_51_MTR_GAMES 77 THX_51_DSC_GAMES 78 THX_51_PLIIX_GAME 79 THX_51_PLIIZ_GAMES 7A THX_51_NEO6_GAMES 7B THX_51_NEURAL_GAMES 7C

43、THX_20_NEOX_GAMES 7D THX_51_NEOX_GAMES 7E THX_20_DOLBY_SURR_GAME 7F THX_51_DOLBY_SURR_GAME 80 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_DS

44、C_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

45、_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 BA THX_U2CINEMA_LMD_BEGIN BB THX_51_SLCT2_CIN BC THX_51_PLIIZ_SLCT2_CINEMA BD THX_U2CINEMA_LMD_END D0 AUDYSSEY_LMD_BEGIN D1

46、 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_PL

47、IIX_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 WiFi 5GHz Setting 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 TX-NR474/575/575E TX-NR676/676E/777/ TX-RZ62