Eltax-AVR800-avr-sm维修电路原理图.pdf

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1、6.1 Channel Home Theatre Receiver SERVICE MANUAL AVR-800 CONTENTS Specifications . 2 Measurements And Adjustments . 3 Troubleshooting. 5 IC Internal Diagrams . 6 Electrical Parts List. 27 Block Diagram. 33 Wiring Diagram. 35 Schematic Diagrams. 37 Printed Circuit Boards . 45 Exploded View. 53 RadioF

2、ans.CN 收音机爱 好者资料库 - 2 - SPECIFICATIONS Amplifier Section Output Power Stereo Mode : 120W/CH (1% THD 1KHz 8ohm DIN) Surround Mode : 92W/CH (1% THD 1KHz 8ohm DIN) THD : 0.01% DOLBY DIGITAL Mode: Surround : 0 15 ms Center : 0 5 ms Back surround : 0 20 ms DOLBY PRO LOGIC Mode (Surround): Music : 05 ms M

3、ovie : 1025 ms Emulation : 1025 ms Frequency Response: *LINE: 10 Hz 70 kHz, +1/ 3 dB Signal-to-Noise Ratio: *LINE: 100dB (IHF-A) Tone Control: BASS: 10 dB at 100 Hz TREBLE: 10 dB at 10 kHz Digital Audio Section Sampling Frequency:32 kHz, 44.1 kHz, 48 kHz, 96 kHz DIGITAL Input Level/Impedance: DIGITA

4、L 1, 2 (OPTICAL): 15 dBm 21 dBm DIGITAL 3 (COAXIAL): 0.5 Vp-p / 75 ohms FM Tuner Section (Without notes 100.1 MHz, 65 dBf) Tuning Range: 87.5 MHz 108.0 MHz (50 kHz steps) Usable Sensitivity (IHF): Mono: 11.2 dBf 50 dB Quieting Sensitivity: Mono: 15.3 dBf Stereo: 38.5 dBf Capture Ratio:2.0 dB Image R

5、ejection Ratio: 45 dB AM Suppression Ratio: 55 dB Total Harmonic Distortion (1 kHz): Mono: 0.2% Stereo: 0.3% Frequency Response:30 Hz 15 kHz, +1/ 1.5 dB Stereo Separation (1 kHz):40 dB Signal-to-Noise Ratio: Mono: 70 dB Stereo: 65 dB AM Tuner Section Tuning Range: 522 kHz 1,620 kHz (9 kHz steps) Usa

6、ble Sensitivity:55 dB/m Total Harmonic Distortion:0.8% at 85 dB/m Signal-to-Noise Ratio:45 dB at 85 dB/m Video Section Input Sensitivity/Impedance:1.0 Vp-p/75 ohms Output Level/Impedance:1.0 Vp-p/75 ohms General Power Requirements: 230 V AC, 50 Hz Power Consumption: 320W AC Outlets: Switched x 1, 10

7、0 W max. Dimensions (W x H x D) 435 x 165 x 350 mm (17-1/8 x 6-1/2 x 13-3/4) Weight (net):12Kg *LINE means CD, TAPE, VCR/VID 1, TV/VID 2, AUX/VID 3 and DVD/CD. Improvements may result in specifications and features changing without notice. Illustrations may differ slightly from production models. Ra

8、dioFans.CN 收音机爱 好者资料库 Item Band AM30%400Hz FM100%(40KHz Dev.)400Hz TUNER MODULETUNER MODULE ModulationModulation frequency - 3 - MEASUREMENTS AND ADJUSTMENTS ALIGNMENT INSTRUCTIONS EQUIPMENT NEEDED AM Signal Generator FM Signal Generator Oscilloscope VTVM(AC,DC) Test loop antenna(AM Adjustment) Dumm

9、y antenna(FM Adjustment) IMPORTANT 1.Check power-source voltage. 2.Set the function switch to band aligned. 3.Keep the signal input as low as possible to adjust accurately. 4.Modulation and modulation frequency. ADJUSTMENT POINT KST-M9014MS1(0)-70 RadioFans.CN 收音机爱 好者资料库 FM/AM AUTO STOP LEVEL ADJUST

10、MENT FM Signal Generator . . . . Connect to FM ANT Jack (FM IN) through the dummy. AM Signal Generator . . . . Connect to AM ANT. Coil the through the Loop antenn a . BANDStepAdjustment TUNED Display ON TUNED Display OFF S i g n a l G e n e r a t o rA d j u s t f o r AM FM 1 2 1 2 999 82dB 999 81dB

11、100.10 25dB 100.10 24dB TUNED Display ON TUNED Display OFF SVR03 SVR03 SVR01 SVR01 - 4 - AM SG AM LOOP ANTENNA AC EVMOSCILLOSOPE KHz OUT OUTPUT 60 cm FM SG 75 ohm AC EVMOSCILLOSOPE MHz OUT OUTPUT FM ANT. RadioFans.CN 收音机爱 好者资料库 - 5 - TROUBLESHOOTING ProblemProbable CauseRemedy Amplifier When listeni

12、ng to the music in stereo, left/right speakers sounds reversed. Low hum or buzzer sound. Sound is only heard from one channel. Sound cuts off during listening to the music or no sound even though power is ON. No sound. Low bass response. An unusual hissing noise is heard when listening to the broadc

13、ast in stereo, but not heard when listening monaurally. Noise is excessive in both stereo and monaural broadcasts. Sound is distorted and/or the volume level becomes low. Excessive distortion in the sound of stereo broadcasts. No sound from the Surround speakers. No sound from the center speaker. No

14、 sound from the surround back speaker No suond from the front speaker. Remote control not working. Speakers are connected wrong. Power line of a fluorescent light is installed near this product. One of the input cords is disconnected. The BALANCE control is set to one side. Speaker impedance is less

15、 than prescribed for this unit. A/B Speaker selectors are turned off. Speaker polarity (+/) is reversed. A slight noise may be heard because the method used for modulation of FM stereo broadcasts is different than that used for monaural broadcasts. Poor location and/or direction of the antenna. Tran

16、smitting station is too far away. Broadcast signals are being disturbed. Speaker system connections are not correct. SURROUND ON/OFF button is set to OFF. Source being played is not recorded or broadcast in surround sound or stereo. One or more rear speaker wires is not making good contact. SURROUND

17、 mode button is not set to DOLBY DIGITAL, DTS, DOLBY PRO LOGICII or 3 STEREO. The surround back speaker cable connection is incomplete Surround mode is not EX/ES mode. Surround back = NONE has been selected in SPEAKERS Configuration. Short pins not insert EQ jack When speaker A and B is selected Sim

18、ultaneously, but speaker B is Not connection. The batteries are exhausted. The remote control unit is too far from the receiver or out of the effective range. After checking, if needed, reconnect. Place this product as far away as possible from electric devices with interference. Connect the input c

19、ords securely. Adjust the BALANCE control. After turning off the power and then turning it on again, reduce the volume or change to the correct 8 ohm speakers. Press the A or B speaker selector as applicable. Check all speakers for correct polarity. Try reducing the treble sound by turning the trebl

20、e controls. Try changing the location, height and/or direction of the antenna. Set the FM mode to monaural by pressing the STEREO/MONO button. (Note that the broadcast will then be heard as monaural sound). If an indoor antenna is being used, change to an outdoor antenna. Try using an antenna with m

21、ore elements. Set the button to the desired surround mode position. Use surround or stereo source. Check all rear speaker wires for good connection. Set the button to Dolby Digital EX, DTS/ES, Dolby Pro LogicII or 3 STEREO. Connect the cable correctly. Set surround mode EX/ES Make the correct settin

22、g. Insert the short pin Connect the speaker both A and B. Select speaker A only Replace with new batteries. Operate the remote control unit within the effective range. Tuner Surround Effects Remote Control Unit The center and rear speakers only operate when the unit is set on a Surround Sound mode a

23、nd the source material being played is recorded or broadcast in Dolby Digital EX, DTS/ES, Dolby Pro LogicII surround sound. Stereo broadcasts or recordings will produce some rear channel effects when played in a surround mode. However, mono sources will not produce any sound from the rear speakers.

24、RadioFans.CN 收音机爱 好者资料库 - 6 - TC9163AF (FUNCTION/INPUT) : IC51 BLOCK DIAGRAM LEVEL SHIFTER 2 1 2 3 4 1 5 6 2 7 8 3 1 2 3 4 1 5 6 2 7 8 3 1 3 4 5 6 7 8 9 10 1428 11 12 13 27 26 25 24 23 22 21 20 19 18 17 16 15 LATCH CIRCUIT SHIFT REGISTER LEVEL SHIFTER LATCH CIRCUIT L-SR-S VssGNDVDD L-S L-S L-S L-COM

25、 L-S L-S L-COM L-S L-S L-COM ST R-S R-S R-S R-COM R-S R-S R-COM R-S R-S R-COM DATA CK TC9164AF (FUNCTION/INPUT) : IC53 BLOCK DIAGRAM IC INTERNAL DIAGRAMS RadioFans.CN 收音机爱 好者资料库 - 7 - BLOCK DIAGRAM TC9459F(VOLUME) : IC55 LEVEL SHIFTER 2 1 2 1 3 4 2 5 6 3 7 4 1 2 1 3 4 2 5 6 3 7 4 1 3 4 5 6 7 8 9 10

26、1428 11 12 13 27 26 25 24 23 22 21 20 19 18 17 16 15 LATCH CIRCUIT SHIFT REGISTER LEVEL SHIFTER LATCH CIRCUIT L-SR-S VssGNDVDD L-S L-COM L-S L-S L-COM L-S L-S L-COM L-S L-COM ST R-S R-COM R-S R-S R-COM R-S R-S R-COM R-S R-COM DATA CK LEVEL SHIFTER 2 1 2 1 3 4 2 5 6 3 7 4 1 2 1 3 4 2 5 6 3 7 4 1 3 4

27、5 6 7 8 9 10 1428 11 12 13 27 26 25 24 23 22 21 20 19 18 17 16 15 LATCH CIRCUIT SHIFT REGISTER LEVEL SHIFTER LATCH CIRCUIT L-SR-S VssGNDVDD L-S L-COM L-S L-S L-COM L-S L-S L-COM L-S L-COM ST R-S R-COM R-S R-S R-COM R-S R-S R-COM R-S R-COM DATA CK TC9162AF (FUNCTIOIC BLOCK DIAGRAM TC9162AF (FUNCTION/

28、INPUT) : IC54 BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 - 8 - M62446FP(VOLUME) : IC56 BLOCK DIAGRAM PIN CONFIGRATION M62446FP(VOLUME) : IC56 BLOCK DIAGRAM PIN CONFIGRATION RadioFans.CN 收音机爱 好者资料库 - 9 - Modulator MCLK AINL LRCK SCLK SDTO DIF VCOM Clock Divider AINR AGNDVA Decimation Filter Serial I/O Int

29、erface Voltage Reference CKS1 DGNDVD CKS2 Modulator Decimation Filter PDNCKS0 AK5381 (A/D CONVERTER) : IC57 PIN / FUNCTION No. Pin Name I/O Function 1AINRIRch Analog Input Pin 2AINLILch Analog Input Pin 3CKS1IMode Select 1 Pin 4VCOMO Common Voltage Output Pin, VA/2 Bias voltage of ADC input. 5AGND-A

30、nalog Ground Pin 6 VA - Analog Power Supply Pin, 4.5 5.5V 7VD-Digital Power Supply Pin, 2.7 5.5V(fs=4k 48kHz), 3.0 5.5V(fs=48k 96kHz) 8DGND-Digital Ground Pin 9SDTOO Audio Serial Data Output Pin “L” Output at Power-down mode. 10LRCKI/O Output Channel Clock Pin “L” Output in Master Mode at Power-down

31、 mode. 11MCLKIMaster Clock Input Pin 12SCLKI/O Audio Serial Data Clock Pin “L” Output in Master Mode at Power-down mode. 13PDNI Power Down Mode Pin “H”: Power up, “L”: Power down 14DIFI Audio Interface Format Pin “H” : 24bit I2S Compatible, “L” : 24bit MSB justified 15CKS2IMode Select 2 Pin 16CKS0IM

32、ode Select 0 Pin Note: All digital input pins should not be left floating. RadioFans.CN 收音机爱 好者资料库 - 10 - SCF DAC DATT DZF LOUT1+ LOUT1- SCF DAC DATT ROUT1+ ROUT1- SCF DAC DATT LOUT2+ LOUT2- SCF DAC DATT ROUT2+ ROUT2- SCF DAC DATT LOUT3+ LOUT3- SCF DAC DATT ROUT3+ ROUT3- Audio I/F Control Register A

33、K4358 MCLK LRCK BICK DCLK DSDL1 DSDR1 3-wire or I2C SDTI1 SDTI2 SDTI3 DSDL2 DSDR2 DSDL3 DSDR3 PCM DSD SCF DAC DATT LOUT4+ LOUT4- SCF DAC DATT ROUT4+ ROUT4- DSDL4 DSDR4 SDTI4 AK4358 (D/A CONVERTER) : IC58 LOUT1- ROUT1+ 1 2 3 4 5 6 7 8 9 MCLK10 DVDD ROUT1- LOUT2+ ROUT2- LOUT3+ LOUT3- ROUT3+ ROUT3- LOU

34、T4+ SDTI413 SDTI114 SDTI215 SDTI316 LRCK 17 18 CCLK/SCL19 CDTI/SDA20 CSN/CAD121 DCLK22 DSDL423 36 35 34 33 32 31 30 29 28 27 26 AVSS AVDD VREFH ROUT4- DIF0 DSDR3 DSDL3 DSDR2 DSDL2 DSDR1 AK4358VQ Top View I2C LOUT2- ROUT2+ LOUT4- DSDR424 11 DVSS12 25DSDL1 TBD PIN LAYOUT (To be determined) RadioFans.C

35、N 收音机爱 好者资料库 - 11 - PIN DESCRIPTION PIN DESCRIPTION No.Pin NameI/OFunction 1LOUT1-ODAC 1 Lch Negative Analog Output Pin 2LOUT1+ODAC 1 Lch Positive Analog Output Pin 3DZF3OZero Input Detect 3 Pin 4DZF2OZero Input Detect 2 Pin 5DZF1OZero Input Detect 1 Pin 6CAD0IChip Address 0 Pin 7ACKSNI Auto Setting

36、 Mode Disable Pin(Pull-down Pin) L:Auto Setting Mode, H:Manual Setting Mode 8PDNI Power-Down Mode Pin When atL,the AK4358 is in the power-down mode and is held in reset. 9BICKIAudio Serial Data Clock Pin 10MCLKI Master Clock Input Pin An external TTL clock should be input on this pin. 11DVDD-Digital

37、 Power Supply Pin. +4.75+5.25V 12DVSS-Digital Ground Pin 13SDTI4IDAC4 Audio Serial Data Input Pin 14SDTI1IDAC1 Audio Serial Data Input Pin 15SDTI2IDAC2 Audio Serial Data Input Pin 16SDTI3IDAC3 Audio Serial Data Input Pin 17LRCKIL/R Clock Pin 18I2CI Control Mode Select Pin L:3-wire Serial, H:IC Bus 1

38、9CCLK/SCLI Control Data Clock Pin I2C=L:CCLK(3-wire Serial),I2C=H:SCL(IC Bus) 20CDTI/SDAI/O Control Data Input Pin I2C=L:CDTI(3-wire Serial),I2C=H:SDA(IC Bus) 21CSN/CAD1I Chip Select Pin I2C=L:Csn(3-wire Serial),I2C=H:CAD1(IC Bus) 22DCLKIDSD Clock Pin 23DSDL4IDAC4 DSD Lch Data Input Pin 24DSDR4IDAC4

39、 DSD Rch Data Input Pin 25DSDL1IDAC1 DSD Lch Data Input Pin 26DSDR1IDAC1 DSD Rch Data Input Pin 27DSDL2IDAC2 DSD Lch Data Input Pin 28DSDR2IDAC2 DSD Rch Data Input Pin 29DSDL3IDAC3 DSD Lch Data Input Pin 30DSDR3IDAC3 DSD Rch Data Input Pin 31DIF0IAudio Data Interface Format 0 Pin 32ROUT4-ODAC4 Rch N

40、egative Analog Output Pin 33ROUT4+ODAC5 Rch Positive Analog Output Pin 34VREFHIPositive Voltage Reference Input Pin 35A VDD-Analog Power Supply Pin. +4.75+5.25V 36A VSS-Analog Ground Pin 37LOUT4-ODAC4 Lch Negative Analog Output Pin 38LOUT4+ODAC4 Lch Positive Analog Output Pin 39ROUT3-ODAC3 Rch Negat

41、ive Analog Output Pin 40ROUT3+ODAC3 Rch Positive Analog Output Pin 41LOUT3-ODAC3 Lch Negative Analog Output Pin 42LOUT3+ODAC3 Lch Positive Analog Output Pin 43ROUT2-ODAC2 Rch Negative Analog Output Pin 44ROUT2+ODAC2 Rch Positive Analog Output Pin 45LOUT2-ODAC2 Lch Negative Analog Output Pin 46LOUT2+

42、ODAC2 Lch Positive Analog Output Pin 47ROUT1-ODAC1 Rch Negative Analog Output Pin 48ROUT1+O DAC1 Rch Positive Analog Output Pin RadioFans.CN 收音机爱 好者资料库 - 12 - PIN ASSIGNMENT.(CS493264) (TOP VIEW) BlOCK DIAGRAM(CS493264) VD1 DGND1 AUDATA3, XMT958 WR,DS,EMWR,GPIO10 RD,R/W,EMOE,GPIO11 A1,SCDIN A0,SCCLK

43、 DATA7,EMAD7,GPIO7 CS493XXX-CLG 44-pin PLCC Top View DATA6,EMAD6,GPIO6 DATA5,EMAD5,GPIO5 DATA4,EMAD4,GPIO4 DATA3,EMAD3,GPIO3 DATA2,EMAD2,GPIO2 DATA1,EMAD1,GPIO1 DATA0,EMAD0,GPIO0 VD2 DGND2 CS SCDIO,SCDOUT,PSEL,GPIO9 ABOOT,INTREQ EXTMEM,GPIO8 SDATAN1 MCLK SCLK LRCLK AUDATA0 AUDATA1 AUDATA2 DC 7 8 9 1

44、0 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 654321 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 DD RESET AGND FILT2 CLKSEL CLKIN CMPREQ,LRCLKN2 VA FILT1 CMPDAT,SCLKN2,RCV958 CMPCLK,SCLKN2 LRCLKN1 VD3 SCLKN1,STCCLK2 DGND3 AUDIO DSP (CS493264 - CLG) : IC59 CMPDAT SDATAN2 CMPCLK SCLKN2 C

45、MPREQ LRCLKN2 SCLKN1 STCCLK2 LRCLKN1 SDATAN1 CLKIN CLKSEL FILTDFILTSVAAGNDDGND(3:1)VD(3:1) XMT95 AUDA LRCLK SCLK MCLK DC DD EXTMEM. GPIO8 A800T INTERQ A1, SCDIN A0, SCCLK CS STC Parallel or Serial Host Interface RESET SCDIO, SCDOUT, PSEL, GPIO9 WR, DR, EMWR, GPIO10 RD, R/W, EMOE, GPIO11 DATA7:0, EMA

46、D7:0, GPIO7:0 Compressed Data Input Interface RAM Program Memory ROM Program Memory RAM Data Memory RAM Output Buffer Output Formatter ROM Data Memory PLL Clock Manager RAM Input Buffer 24-Bit DSP Processing Digital Audio Input Interface Framer Shifter Input Buffer Controller RadioFans.CN 收音机爱 好者资料库

47、 - 13 - PIN No.Pin NameI/OFunction 1,12,23+VD1-Digital Power supply. Normally +2.5v 2,13,24DGND-Digital Ground 3AUD3OSPDIF transmitter output/Digital audio output(N.C) 4WRIHost write strobe pin(connected to GND with an external resistor) 5RDIHost parallel output enable pin(pulled up with an external resistor) 6 CS_DA I SPI Serial data input pin 7CS_CKISerial control clock input pin 8EMAD7I/O 9EMAD6I/O 10EMAD5I/O 11EMAD4I/OSerial data IN/OUTPUT pins(pulled up with an external resistor) 14EMAD3I/O 15EMAD2I/O 16E