Onkyo-TXNR901-avr-sm 电路图 维修手册.pdf

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1、TX-NR901 SERVICE MANUALSERVICE MANUAL AV RECEIVER Black and Golden models MODEL TX-NR901 Ref. No. 3786 112003 BMDD,BMDC120V, AC 60Hz GMWT,GMWR120/220230V, AC 50/60Hz BMPA,GMPA230240V, AC 50Hz GMGK220V, AC 50Hz -/- . - /ABCDEF PQRSTUVWXYZ DIRECT TUNING GHIJKLMNO CAPSDELETELANGUAGELOCATION ALBUMAR TIS

2、TGENREPLAYLIST CUSTOM DISPLAY DIMMER T V INPUT SLEEP RANDOMRECSTEP / SLOW MUTING ENTER LAST MANGLESUBTITLEAUDIO MEMORYSEARCHA-BREPEAT ONSTANDBY TV TV CH TV VOL A U D I O A D J E X I T G U I D E +10 0CLEAR 123 456 789 INPUT T O P M E N U M E N U S E T U P R E T U R N ZONE 2 INPUTMODE MACRO VOL CH DIS

3、C TEST TONECH SEL PURE A SURR DIRECT STEREO Re-EQ THXAll ST LEVEL+LEVEL- L NIGHTAUDIO SEL DSPDSP + - + - STANDBY/ON STANDBY MASTER VOLUME TUNERPHONONET AUDIOC DTAPEDVDVIDEO 3VIDEO 5VIDEO 4VIDEO 2VIDEO 1 VCR 2VCR 1 ZONE 2()GRN REC()RED AUDIO SELECTORDISPL AY PURE AUDIOUPSAMPLING PUSH TO OPEN SAFETY-R

4、ELATED 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 DET

5、ERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 TX-NR901/E SPECIFICATIONS Amplifier Section Video Section Tuner Section FM AM General Video Inputs Video Outputs Audio Inputs Audio Outputs Other Sockets

6、 Specifications and features are subject to change without notice. Power output: All channels: 110 W (8 , 20 Hz20 kHz, FTC) (American Model) 180 W (6 , 1 kHz, EIAJ) (Asian Model) 150 W (6 , 1 kHz, DIN) (Australian model) Dynamic power:2 x 280 W (3 , front) 2 x 220 W (4 , front) 2 x 140 W (8 , front)

7、 THD (total harmonic distortion):0.08% (rated power) Damping factor:60 Input sensitivity and impedance:200 mV/50k (LINE) 2.5 mV/50k (PHONO MM) Output level and impedance:200 mV/470 (REC OUT) Phono overload:120 mV (MM, 1 kHz, 0.5%) Frequency response: 10 Hz100 kHz/+1 dB, 3 dB (CD, Direct) Tone contro

8、l:10 dB, 50 Hz (BASS) 10 dB, 20,000 Hz (TREBLE) S/N ratio (Direct mode):110 dB (LINE, IHF-A, 0.5 V input) 80 dB (PHONO, IHF-A, 5 mV input) Speaker impedance:416 Input sensitivity, output level and impedance: 1.0 Vp-p/75 (component and S-Video Y) 0.7 Vp-p/75 (component PB/CB, PR/CR) 0.286 Vp-p/75 (S-

9、Video C) 1.0 Vp-p/75 (composite) Component video frequency response:5 Hz50 MHz Tuning frequency range:87.5108.0 MHz Usable sensitivity:FM STEREO 17.2 dBf, 2.0 V (75 IHF) FM MONO 11.2 dBf, 1.0 V (75 IHF) S/N ratio:FM STEREO 70 dB (IHF-A) FM MONO 76 dB (IHF-A) THD:FM STEREO 0.3% FM MONO 0.2% FM stereo

10、 separation: 45 dB at 1 kHz, 30 dB at 100 Hz10 kHz Tuning frequency range:5301710 kHz (American model) 5221611 kHz (Other models) Usable sensitivity:30 V S/N ratio:40 dB THD:0.7% Power supply:American model: AC 120 V, 60 Hz Australian model: AC 230240 V, 50 Hz Others models: AC 220230 V and 120 V sw

11、itchable 50/60 Hz Power consumption:American model: 9.0 A Australian and Worldwide models: 670 W Standby power consumption:2.5 W Dimensions (W x H x D):17-1/8 x 6-7/8 x 18-1/16 (435 x 175 x 459 mm) Weight:American and Australian models: 42.5 Ibs. (19.3 kg) Worldwide models: 42.3 lbs. (19.2 kg) Compo

12、nent video inputs: 2 (Input 1, Input 2) S-Video inputs:6 (DVD, Video 15) Video inputs:6 (DVD, Video 15) Component video outputs:1 (Component Monitor Out) S-Video outputs:3 (Video 1 Out, Video 2 Out, Video Monitor Out) Video outputs:4 (Video 1 Out, Video 2 Out, Video Monitor Out, Zone 2 Video Out) Di

13、gital inputs:8 (Optical 14, Optical Video 5 (fixed, on front panel), Coaxial 13) Analog inputs:8 (CD, Phono, Tape, DVD, Video 14, Video 5) Multichannel analog inputs: 7.1 ch (Front L/R, Center, Surround L/R, Surround Back L/R, Subwoofer) Digital outputs:2 optical Analog outputs:4 (Tape Out, Video 1

14、Out, Video 2 Out, Zone 2 Out) Pre outs:8 (Front L/R, Center , Surround L/R, Surround Back L/R or Zone 2 L/R, Subwoofer) Subwoofer pre out:1 Speaker outputs:7 Phones:1 RS-232:1 (not American and Australian models) IR in/out:1 12V trigger out:1 Ethernet (Net-Tune)1 (10Base-T, RJ45) RadioFans.CN 收音机爱 好

15、者资料库 TX-NR901 SERVICE PROCEDURES 1 1. Replacing the fuses This symbol located near the fuses indicates that the fuse used is fast 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

16、 que le fusible utlise est a rapide. Pour une protection permanente, nuntiliser que fusibles de meme type. Ce darnier est la qu le present symbol est appse. 2. To initialize the unit This device employs a microprocessor to perform various functions and operations. If interference generated by an ext

17、ernal power supply, radio wave, or other electrical source results in accident which causes the specified operations and functions to operate abnormally. To perform a result, please follow the procedure below. 1.Press the STANDBY ON button to turn on the unit. 2.Press and hold down the VIDEO 1 butto

18、n, then press the STANDBY/ON button. 3.After CLEAR is displayed, the preset memory and each mode stored in the memory, such as surround, are initialized and will return to the factory setting. 4.Unplug the power supply cord. 3. Safety-check out (Only U.S.A. model) After correcting the original servi

19、ce problem, perform the following safety check before releasing the set to the customer. Connect the insulating-resistance tester between the plug of power supply cord and screw on the back panel. Specifications: 3.3Mohm+/-10% at 500V. 4. Memory Preservation This unit does not require memory preserv

20、ation batteries. A built-in memory power back-up system preserves the contents of the memory during power failures and even when the unit is unplugged. The unit must be plugged in order to charge the back-up system. The memory preservation period after the unit has been unplugged varies depending on

21、 climate and placement of the unit. On the average, memory contents are protected over a period of a few weeks after the last time the unit has been unplugged. This period is shorter when the unit is exposed to a highly humid climate. 5.Setting the voltage selector (Worldwide models only) Worldwide

22、models are equipped with a voltage selector so that you supplies. Be can set your TX-NR901 to conform with local power sure to set this switch to match the voltage of your area before plugging in the unit. Determine the proper voltage for your area: 220-230 V or the preset voltage is not correct for

23、 your area, into the groove in the switch and slide (220-230 V), whichever is appropriate. Note: : 120V model only : Australian model only : Worldwide model only : Chinese model only the power supply in 120 V. If insert a screwdriver the switch all the way to the top (120 V) or bottom REF. NO.PART N

24、O.DESCRIPTION F901 25219612A-UL/T-314,Fuse F902 2520785A-SE-EAK, 252244 or5A-SE-TL250V or 2522785A-SE-TL250V, Fuse F903 252164 or5A-UL/T-237 or 2522585A-T/UL-ST2,Fuse 252075,2.5A-SE-EAK, 252241 or2.5A-SE-TL250V or 2522752.5A-SE-TL250V,Fuse F9501,F9502252160 or2.5A-UL/T-237 or 2522542.5A-T/UL-ST2,Fus

25、e 252075,2.5A-SE-EAK, 252241 or2.5A-SE-TL250V or 2522752.5A-SE-TL250V,Fuse F9503,F9504 252158 or1.6A-UL/T-237 or 2522521.6A-T/UL-ST2,Fuse 252073,1.6A-SE-EAK, 252239 or1.6A-SE-TL250V or 2522731.6A-SE-TL250V,Fuse : Korean model only FM 75 OUT OUT OUT OUT L OUT PHONO DIGITAL IN PRE OUT DIGITAL OUT OPT

26、OPT 2 1 2 3 4 1 2 FRONT SUB SURR RL AUDIO RL CD TAPE RL AUDIOVIDEO S VIDEO MONITOR OUT RL IN IN IN IN IN IN IN ZONE 2 DVD VIDEO 1 VIDEO 2 VIDEO 3 VIDEO 4 AUDIOAUDIOVIDEO S VIDEO 1 3 GND SURR BACK/ ZONE 2 RL IN AC INLET COAX R ZONE 2 REMOTE CONTROL RS232 I R12V TRIGGER OUT IN CENTER ETHERNET (Net -Tu

27、ne) RL MULTI CH INPUT FRONT SUB SURR SURR BACK CENTER RL AM ANTENNA COMPONENT VIDEO Y PB PR OUTPUT INPUT 1 Y PB PR INPUT 2 Y PB PR VOLTAGE SELECTOR 220-230V 120V TX-NR901 MODEL NO. / SURR BACK/ ZONE 2 SPEAKERS FRONT SPEAKERS LRLR SURR SPEAKERS CENTER SPEAKER RL VOLTAGE SELECTOR 220-230V 120V RadioFa

28、ns.CN 收音机爱 好者资料库 TX-NR901 SERVICE PROCEDURES 2 This section explains how to specify the AM frequenc y step. (This setting is not available on American and Aus- tralian models.) Note: * This procedure can also be performed by using the TX-NR901s SETUP button, / buttons, and ENTER button. Specifying t

29、he AM Frequency Step (Worldwide model only) 1 Press the scroll wheel, and then press the SETUP button. The main menu appears onscreen. 2 Use the Up/Down / but- tons to select 0. Hardware Setup, and then press the ENTER button. The Hardware Setup menu appears. 3 Use the Up/Down / but- tons to select

30、5. AM Frequency Step, and then press the ENTER button. The AM Frequency Step menu appears. 4 Use the Up/Down / but- tons to select a. Frequency Step, and then use the Left/Right / buttons to select: 10 kHz: Select if 10 kHz steps are used in your area. 9 kHz: Select if 9 kHz steps are used in your a

31、rea. 5 Press the SETUP button. The setup menu closes. ENTER ENTER ENTER ENTER 0-5.AM Frequency Step a.Frequency Step :9 kHz Quit:SETUP ENTER TX-NR901 FRONT PANEL 467 12 11 13 16 19 21 589 10 151417 1820 3 26 23 22 25 24 2 27292830 STANDBY/ON STANDBY MASTER VOLUME TUNERPHONONET AUDIOC DTAPEDVDVIDEO 3

32、VIDEO 5VIDEO 4VIDEO 2VIDEO 1 VCR 2VCR 1 ZONE 2()GRN REC()RED AUDIO SELECTORDISPL AY PURE AUDIOUPSAMPLING OFFON POWER PUSH TO OPEN PHONES ZONE 2 LEVEL STEREOSURROUNDTHXDSPREC OUTZONE 2OFFDIMMERMEMORYFM MODESETUPENTERRETURN S VIDEOVIDEO DIGITAL VIDEO 5 INPUT STANDBY/ON STANDBY MASTER VOLUME TUNERPHONO

33、NET AUDIOC DTAPEDVDVIDEO 3VIDEO 5VIDEO 4VIDEO 2VIDEO 1 VCR 2VCR 1 ZONE 2()GRN REC()RED AUDIO SELECTORDISPL AY PURE AUDIOUPSAMPLING PUSH TO OPEN PRESETTUNINGCLEAR AUDIOLR American and Australian Models Other Models Front doorPush here to open the flap 467 12 11 589 10 3 1 2 TX-NR901 FRONT PANEL POWER

34、 switch American and Australian models dont have this switch. This is the main power switch. When set to OFF, the TX-NR901 is completely shutdown. When set to ON, the TX-NR901 is in Standby mode and the ST ANDBY indicator lights up. Dont turn on the power until youve completed, and double checked al

35、l connections. STANDBY/ON button This button is used to set the TX-NR901 to On or Standby. For models with a POWER switch, this button has no effect unless the POWER switch is set to ON. STANDBY indicator This indicator lights up when the TX-NR901 is in Standby mode, and it ashes while a signal is b

36、eing received from the remote controller. AUDIO SELECTOR button This button is used to select the audio input signal format: analog, digital, or multichannel. Input selector buttons & indicators These buttons are used to select the following input sources: DVD, VIDEO 15, TAPE, TUNER, PHONO, CD, and

37、NET AUDIO. The indicators show the currently selected input source. The indicators also show which input source is selected for Zone 2, in which case they light up green, or which input source is selected for record- ing (REC OUT), in which case they light up red. Display See “Display” on next page.

38、 Remote-control sensor This sensor receives control signals from the remote controller. DISPLAY button This button is used to display various information about the currently selected input source. MASTER VOLUME control This control is used to set the volume of the TX-NR901 from 0 to 100. DIRECT/PURE

39、 AUDIO button This button is used to select the Direct or Pure Audio listening modes. PURE AUDIO indicator This indicator lights up when the Pure Audio listen- ing mode is selected. UPSAMPLING indicator This indicator lights up when the Upsampling func- tion is on. PHONES jack This 1/4-inch phone ja

40、ck is for connecting a stan- dard pair of stereo headphones for private listening. ZONE 2 LEVEL buttons These buttons are used to set the volume for Zone 2. REC OUT button This button is used to select the input source that you want to record via the REC OUTs (i.e., TAPE OUT, VIDEO 1 OUT , VIDEO 2 O

41、UT). ZONE 2 button This button is used to select the input source for Zone 2. OFF button This button is used to turn off the REC OUTs (i.e., TAPE OUT , VIDEO 1 OUT , VIDEO 2 OUT) or Zone 2. STEREO button This button is used to select the Stereo listening mode. SURROUND button This button is used to

42、select the Dolby and DTS lis- tening modes. THX button This button is used to select the THX listening modes. DSP buttons These buttons are used to select the DSP (digital signal processor) listening modes. DIMMER button This button is used to adjust the display brightness. MEMORY button This button

43、 is used when storing and deleting radio presets. FM MODE button This button is used to select the FM radio Auto and Mono modes. SETUP button This button is used to access the onscreen setup menus (OSD) that appear on the TV. TUNING buttons These buttons are used to tune into radio stations and to s

44、elect items on the onscreen setup menus (OSD). ENTER button This button is used when navigating the onscreen setup menus (OSD), entering names, and confirm- ing settings. PRESET buttons These buttons are used to select radio presets and to select items on the onscreen setup menus (OSD). 4 6 7 12 11

45、13 16 19 21 5 8 9 10 15 14 17 18 20 3 26 23 22 25 24 1 2 27 28 TX-NR901 FRONT PANEL RETURN button This button is used to return to the previously dis- played onscreen setup menu (OSD). VIDEO 5 INPUTs These optical digital audio, S-Video, composite video, and analog audio inputs can be used to con- n

46、ect a camcorder, games console, and so on. Audio input format indicators These indicators show the audio input format for the currently selected input source. Listening mode & digital audio format indicators These indicators show the currently selected listen- ing mode and digital audio format. Tuni

47、ng indicators AUTO indicator: This indicator lights up when the tuner is tuned to an FM station and Stereo mode is selected. It goes off when Mono mode is selected. TUNED indicator: This indicator lights up when the tuner is tuned into an AM or FM station. FM STEREO indicator: This indicator lights

48、up when the tuner is tuned to a stereo FM station. It goes off when Mono mode is selected. Multipurpose display area Normally, the name of the currently selected input source is displayed here. When you select the AM or FM input source, the radio frequency and preset number are displayed. If you pre

49、ss the DISPLAY button, the currently selected listening mode and digital audio format are displayed. Volume level The volume level is displayed here. SLEEP indicator This indicator lights up when the Sleep function has been set. Display 29 30 23 45 1 6 2 3 4 5 1 6 TX-NR901 REAR PANEL DIGITAL IN COAX 13, OPT 14 These coaxial and optical digital audio inputs can be used to connect CD, DVD, or LD (laser disc) play- ers and other components with digital audio outputs. DIGITAL OUT OPT 1 & 2 These optical