Onkyo-DTR8_4-avr-sm 电路图 维修手册.pdf

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1、DTR-8.4 SERVICE MANUALSERVICE MANUAL Ref. No. 3788 Dec., 2003 AV RECEIVER Black model MODEL DTR-8.4 BMDD120V, AC 60Hz BMPA230240V, AC 50Hz Display Audio Selector Direct/ Pure Audio Master VolumeStandby/On Video 1Video 3TapeTunerPhonoNet AudioCDDVDVideo 2 VCR 1VCR 2 Video 4Video 5 Zone 2 ()GRN Rec (

2、)RED Pure AudiopsamplingU Standby Push To Open DTR-8.4 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

3、 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. 1 RadioFans.CN 收音机爱 好者资料库 DTR-8.4 SPECIFICATIONS Amplifier Section Video Section Tuner Section FM AM General Video

4、 Inputs Video Outputs Audio Inputs Audio Outputs Other Sockets Specifications and features are subject to change without notice. Power output: All channels: 110 W (8 , 20 Hz20 kHz, FTC) (American Model) 150 W (6 , 1 kHz, DIN) (Australian model) Dynamic power:2 x 280 W (3 , front) 2 x 220 W (4 , fron

5、t) 2 x 140 W (8 , front) THD (total harmonic distortion):0.08% (rated power) Damping factor:60 (8 ) 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:5 Hz100 kHz/+1 dB, -3

6、 dB (CD, Direct) Tone control: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/

7、CB, PR/CR) 0.286 Vp-p/75 (S-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 STERE

8、O 0.3% FM MONO 0.2% FM stereo separation:45 dB at 1 kHz, 30 dB at 100 Hz10 kHz Tuning frequency range: 5301710 kHz (American model) 5221611 kHz (Australian model) 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 Power

9、consumption:American model: 9.0 A Australian model: 670 W Standby power consumption:2.5 W Dimensions (W x H x D):17-1/8 x 6-7/8 x 18-1/8 (435 x 175 x 460 mm) Weight:40.8 Ibs. (18.5 kg) Component video inputs:2 (Input 1, Input 2) S-Video inputs:6 (DVD, Video 15) Video inputs:6 (DVD, Video 15) Compone

10、nt 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) Digital inputs:8 (Optical 14, Optical Video 5 (fixed, on front panel), Coaxial 13) Analog inputs:9 (CD, Phono, Ta

11、pe, 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 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, Sub

12、woofer) Subwoofer pre out:1 Speaker outputs:7 Phones:1 RS-232:1 IR in/out:1 12V trigger out:3 Ethernet (Net-Tune)1 (10Base-T, RJ45) 2 RadioFans.CN 收音机爱 好者资料库 DTR-8.4 SERVICE PROCEDURES 1. Replacing the fuses This symbol located near the fuses indicates that the fuse used is fast operating type. For

13、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 utlise est a rapide. Pour une protection permanente, nuntiliser que fusibles de meme type. Ce darnier est la qu le present symbol est

14、appse. 2. To initialize the unit This device employs a microprocessor to perform various functions and operations. If interference generated by an external power supply, radio wave, or other electrical source results in accident which causes the specified operations and functions to operate abnormal

15、ly. 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 button, 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 initializ

16、ed and will return to the factory setting. 4.Unplug the power supply cord. 4. Memory Preservation This unit does not require memory preservation 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

17、must be plugged in order to charge the back-up system. The memory preservation period after the unit has been unplugged varies depending on 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. T

18、his period is shorter when the unit is exposed to a highly humid climate. Note: : 120V model only : Australian model only REF. NO.PART NO.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,Fu

19、se 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,Fuse 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

20、 or1.6A-SE-TL250V or 2522731.6A-SE-TL250V,Fuse 3. Safety-check out (U.S.A. model only) After correcting the original service problem, perform the following safety check before releasing the set to the customer. Leakage Current Check Measure leakage current to a known earth ground(water pipe, conduit

21、, etc.) by connecting a leakage current tester between the earth ground and exposed metal parts of the appliance (input/output terminals, screwheads,metal overlays, etc.). Plug the power supply cord directly into a 120V AC 60 Hz outlet and turn Standby switch on. Any current meausred must not exceed

22、 0.5mA. 3 RadioFans.CN 收音机爱 好者资料库 DTR-8.4 PANEL VIEWS FRONT PANEL Standby/On button This button is used to set the DTR-8.4 to On or Standby. Standby indicator This indicator lights up when the DTR-8.4 is in Standby mode, and it flashes while a signal is being received from the remote controller. Aud

23、io 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 NET AUDIO. The indicators show the currently

24、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 page 3. Display Audio Selector Direct/ Pure Audio Master

25、VolumeStandby/On Video 1Video 3TapeTunerPhonoNet AudioCDDVDVideo 2 VCR 1VCR 2 Video 4Video 5 Zone 2 ()GRN Rec ( )RED Pure AudiopsamplingU Standby Push To Open DTR-8.4 Phones Zone 2 LevelStereoSurroundTHXDSPRec OutZone 2OffDimmerMemory Clear FM ModeSetupTuningEnterPresetReturn S VideoAudioVideoLR Dig

26、ital Video 5 Input Front doorPush here to open the flap 12345678 910 11 1213 14 15 161820 212325 26 27 2829 24221917 1 2 3 4 5 4 DTR-8.4 PANEL VIEWS FRONT PANEL 6 7 8 9 10 11 12 13 14 15 16 18 20 21 23 25 26 27 28 29 24 22 19 17 Remote-control sensor This sensor receives control signals from the rem

27、ote 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 DTR-8.4 from 0 to 100. Direct/Pure Audio button This button is used to select the Direct or Pure Audio list

28、ening 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 jack is for connecting a stan- dard pair of stereo headphones for private l

29、istening. 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 OUT). Zone 2 button This button is used to select the input source for Zon

30、e 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 select the Dolby and DTS lis- tening modes. THX button This button is use

31、d 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 is used when storing and deleting radio presets. FM Mode button This but

32、ton 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 select items on the onscreen setup menus (OSD). Enter button This button i

33、s 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). Return button This button is used to return to the previously dis- played onscreen se

34、tup menu (OSD). Video 5 Inputs These optical digital audio, S-Video, composite video, and analog audio inputs can be used to con- nect a camcorder, games console, and so on. 5 DTR-8.4 PANEL VIEWS DISPLAY 1Audio input format indicators These indicators show the audio input format for the currently se

35、lected input source. 2Listening mode & digital audio format indicators These indicators show the currently selected listen- ing mode and digital audio format. 3Tuning indicators AUTO indicator: This indicator lights up when the tuner is tuned to an FM station and Stereo mode is selected. It goes off

36、 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 up when the tuner is tuned to a stereo FM station. It goes off when Mono mode is selected. 4Multipurpose display area Normally, the name

37、 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 press the Display button, the currently selected listening mode and digital audio format are displayed. 5Volume level The volume level is

38、displayed here. 6SLEEP indicator This indicator lights up when the Sleep function has been set. 123 456 6 DTR-8.4 PANEL VIEWS 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 di

39、gital audio outputs. DIGITAL OUT OPT 1 & 2 These optical digital audio outputs can be used to connect a CD recorder or other digital recorder with digital inputs. PRE OUT- FRONT L/R, SUB, CENTER, SURR L/R If you use the DTR-8.4 as a preamp, these analog audio outputs can be connected to the inputs o

40、n a separate power amp. The SUB output is used to connect a powered subwoofer. PRE OUT-SURR BACK/ZONE 2 These analog audio outputs can be used to feed the L/R surround back inputs on a separate power amp when the DTR-8.4 is used as a preamp, or to feed a power amp in Zone 2. MULTI CH INPUT-FR ONT L/

41、R, SUB, CENTER, SURR L/R, SURR BACK L/R These analog audio inputs can be used to connect AV components with multiple analog audio outputs, including DVD players with individual 5.1/7.1 sur- round analog audio outputs. AM ANTENNA These push terminals are for connecting an AM antenna. FM ANTENNA This

42、connector is for connecting an FM antenna. PHONO IN These analog inputs can be used to connect a turnta- ble with a moving-magnet cartridge. CD IN These analog inputs can be used to connect a CD player with analog outputs. FM 75 OUT OUT OUT OUT L PHONO PRE OUT FRONT SUB SURR RL AUDIO RL CD TAPE RL A

43、UDIOVIDEO 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 GND SURR BACK/ ZONE 2 RL IN AC INLET R CENTER ETHERNET (Net -Tune) RL MULTI CH INPUT FRONT SUB SURR SURR BACK CENTER RL AM ANTENNA COMPONENT VIDEO Y PB PR OUTPUT INPUT 1 Y PB PR I

44、NPUT 2 Y PB PR SURR BACK/ ZONE 2 SPEAKERS FRONT SPEAKERS LRLR SURR SPEAKERS CENTER SPEAKER RL AC OUTLETS AV RECEIVER MODEL NO. DTR-8.4 RATING: AC 120 V 60 Hz 9.0 A AC 120 V 60 Hz SWITCHED TOTAL 120W 1A MAX. I R IN ZONE 2 REMOTE CONTROL A B RS232 OUT 12 V TRIGGER OUT DIGITAL IN DIGITAL OUT OPT OPT 2

45、1 2 3 4 1 2 1 3 COAX 1 2 34 5 6 7 8910 111213 1415 16 18202123 25 262422 19 17 1 2 3 4 5 6 7 9 8 7 DTR-8.4 PANEL VIEWS REAR PANEL 10 11 12 13 14 15 16 18 20 21 23 25 26 24 22 19 17 TAPE IN/OUT These analog inputs and outputs can be used to con- nect a cassette recorder, Mini Disc recorder, or other

46、recorder with analog inputs and outputs. MONITOR OUT This S-Video or composite video output can be con- nected to the video input on your TV or projector . ZONE 2 OUT These composite video and analog audio outputs can be used to feed a TV and an integrated amp in Zone 2. DVD IN These S-Video, compos

47、ite video, and analog audio inputs can be used to connect a DVD player. VIDEO 1 & 2 IN/OUT These S-Video, composite video, and analog audio inputs and outputs can be used to connect one or two video recorders (e.g., VCRs). VIDEO 3 & 4 IN These S-Video, composite video, and analog audio inputs can be

48、 used to connect one or two video sources (e.g., cable TV , satellite TV, or a set-top box). COMPONENT VIDEO OUTPUT This component video output can be used to con- nect a TV or projector with a component video input. COMPONENT VIDEO INPUT 1 & 2 These component video inputs can be used to con- nect o

49、ne or two AV components with component video outputs, such as a DVD player. ETHERNET (Net-Tune) This port is for connecting the DTR-8.4 to your Ethernet network (i.e., router or switch) for use with Net-Tune (i.e., Internet radio and MP3 and WAV playback). SPEAKERS These terminal posts are for connecting your speak- ers. The SURR BACK/ZONE 2 terminals can be used with surround back speakers in the main room or speakers in another room (Zone 2). RS232 This port is for connecting the DTR-8.4 to home automation and externa