Onkyo-TXSA876-avr-sch 电路图 维修手册.pdf
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1、BLOCK DIAGRAMS-1 AUDIO SECTION TX-SR876/SA876 A 1 2 3 4 5 BCDEFGH SPDIF RX0 RX5 MCH SR RX6 RX7 DAC_FL DAC_SL DAC_SR DAC_SBR DAC_SBL V_OUT_L V_OUT_R DAC_FR DAC FL MIX L MIX R DAC FR DAC_CT DAC_SW MCH C DAC C MCH SW DAC SW MCH SL MAIN L MAIN R DAC SL DAC CT2 DAC SW2 MCH_SBR MCH_SBL MCH_SR MCH_SL MCH_S
2、W MCH_CT CENTER SURROUND LEFT SURROUND RIGHT ZONE2 RIGHT VCR/DVR OUT TAPE OUT SURROUND BACK FRONT RIGHT FRONT LEFT - FRONT RIGHT(BTL) + - FRONT LEFT(BTL) + TAPE VCR/DVR IN CBL/SAT GAME/TV DVD OUT IN 1-4 ch3 ch4 ch14 SURROUND BACK or Bi-AMP LEFT or Bi-AMP RIGHT OPTICAL IN 1 DIGITAL IN (FRONT) COAX IN
3、 2 COAX IN 1 HDMI C SBL HDMI I/F FLASH ROM SD_RAM I2S DSD FL FR SL SR +20dB SW2 I2S I2S DSD PHONO OPTICAL IN 2 +29dB +29dB +29dB +29dB +29dB +29dB +29dB ZONE2 LEFT SBR L FRONT SURR SURR BACK R SUBWOOFER CENTER L R L R CD (DC,DD Type Only) SW R L R L ZONE2 PREOUT/LINEOUT TONE Q4204 R2S15211FP 0dB FIX
4、 ZONE3 PREOUT/LINEOUT ADC -6dB -6dB Q3041 CS42516 MAIN B Zone2 Zone3 C2 RL FL FR C SW SL SR SBL SBR Q4305 NJU7313AM HEADPHONES (DVD audio,etc) Q4306 NJU7311AM 0dB Video REC 0dB-6dB -6dB Q4405 CS3318- CQZR VIDEO IN AUX 2 AUX 1 Q4029 TC94A46CFG ch13 ch12 ch11 ch10 ch9 ch8 ch2 RIAA XM Sirrus MAIN A DIR
5、 TONE 0dB FIX NJU7313AM ch7 ch6 ch5 Q4304 NJU7312AM NJU7312A 0dB FIX 0dB FIX 1 2 3 SETUP MIC 3 2 1 OPTICAL OUT . COAX IN 3 MULTI CHANNEL INPUT FL FR C SW SL SR SBL SBR LR L R L R L R L R L R L R L R L R L R L R PCM1796 DAC PCM1796 DAC Q3701Q3721Q3741Q3761Q3781 PCM1796 DAC PCM1796 DAC PCM1796 DAC TC7
6、4VHC157FTMULTIPLEXER . . . . I2S/DSD MULTIPLEXER TC74VHC157FT Q3001 TC74VHC157FT Refer to SCHEMATIC DIAGRAM-9 and -21 (SD-9 and SD-21) for digital audio signal waveforms. DSP BLOCK SD-10, 11 2nd DSP Q3501 TMS320D788E001BRFP266 (SD-11) 1st DSP Q3401 TMS320D790E001BZDH300 (SD-10) 3rd DSP Q3601 TMS320D
7、707E001BRFP250 (SD-11) Analog Switch Array Analog Switch HDMI BOARD NAHDM-9114 SD-15 to 19 Analog Switch Analog Switch Analog Switch Volume Audio Selector, Volume, Tone SPEAKER TERMINALS 7 CH POWER AMPLIFIERS PRE OUT RS-232 TRANCEIVER RS-232 Q3031 ICL3221E RI RI Q7001 M3087BFKBGP MAIN MICROPROCESSOR
8、 INTERFACE IR OUT IR IR IN NAVD-9052 SD-6 NADG-9074 SD-9 12V TRIGGER OUT ZONE 2 12V TRIGGER CONTROL REMOTE SENSOR TUNER UNIT HD RADIO: DC,DD Type only AM LOOP ANTENNA FM ANTENNA (TX-SA876 Only) TUNER L R +6dB VLSC +6dB VLSC +6dB VLSC +6dB VLSC +6dB VLSC +6dB VLSC +6dB VLSC +6dB VLSC +6dB VLSC +6dB V
9、LSC RadioFans.CN 收音机爱 好者资料库 http:/receiverfaq.ru/ BLOCK DIAGRAMS-2 VIDEO SECTION TX-SR876/SA876 A 1 2 3 4 5 BCDEFGH Video Signal Flow Analog Analog (Through Mode) HDMI HDMI (Through Mode) HDMI HDMI Analog HDMI 1 4 3 2 Analog example is Component Video except OSD HDMI Analog Analog (Up-conversion) OS
10、D Analog 5 Composite Composite 6 8 8 7 CBL/SAT VCR/DVR AUX 1 DVD GAME/TV MONITOR OUT VCR/DVR OUT MONITOR OUT VCR/DVR OUT ZONE2 OUT AUX 2 (FRONT) CBL/SAT VCR/DVR AUX 1 DVD GAME/TV AUX 2 (FRONT) C YC YC YC YC YC Y CB1 CR1 Y2 CB2 CR2 CR3 Y3 CB3 Y1 IN 1 IN 2 IN 3 Y CB CR C CB CR Y Y CB CR CVBS Y C HDBSC
11、 Y CVBS HDBPY HDBPB HDBPB 24MHz MAX HDMI BOARD (NAHDM-9114, SD-15 to 19) VIDEO BOARD (NAVD-9052, SD-6) CY CY HDBCV 12MHz MAX HDBSY MONITOR OUT C-DET MAIN MAIN Z2 Z2 NOTE MMP is short for MAIN MICROPROCESSOR. S-DET Z2 S-DET LPF(12MHz) LPF(12MHz) LPF(12MHz) LPF(6MHz) Y CB CR MAIN Z2 Q2201 NJW1321FP1 T
12、C74HC4051AF VMUT Q2012,Q2013 NJM2587V Q2012,Q2013 NJM2587V Q2014 MM1512 BPF(140K-6MHz) LPF(6MHz) HDAPY HDAPB HDAPR HDACV HDASC HDASY Q2206 NJM2586AM 100MHz -3dB LPF(12MHz) LPF(12MHz) LPF(6MHz) LPF(6MHz) LPF(12MHz) BPF(140K-6MHz) 6dBDRV DRV MMP 6dBDRV 6dBDRV 6dBDRV DRV6dB 6dBDRV . 6dB . 6dB . . 6dB 6
13、dB 6dB . . 6dB 6dB 6dB 6dB 6dBDRV 6dBDRV 75 75 75 75 75 75 6dBDRV 6dBDRV 6dBDRV 6dBDRV 6dB MMP MMP MMP S VIDEO INPUT COMPOSITE VIDEO COMPONENT VIDEO Refer to SCHEMATIC DIAGRAM-6, -17, -18 and -21 (SD-6, SD-17, SD-18 and SD-21) for video and HDMI signal waveforms. Video Switch Video Amp Y/C Mix Video
14、 Amp Video Amp Q2027 NJU7312AM VCL VDATA VSTB Analog switch MMP S VIDEO OUTPUT COMPOSITE VIDEO COMPOSITE VIDEO COMPONENT VIDEO RadioFans.CN 收音机爱 好者资料库 BLOCK DIAGRAMS-3 HDMI SECTION TX-SR876/SA876 A 1 2 3 4 5 BCDEFGH Video Signal Flow Analog Analog (Through Mode) HDMI HDMI (Through Mode) HDMI HDMI An
15、alog HDMI 1 4 3 3 2 2 Analog example is Component Video except OSD HDMI Analog Analog (Up-conversion) OSD Analog 5 Composite Composite 6 8 8 8 7 OSD 32 HDASY HDAPR HDAPB HDAPY HDACV HDASC SDA_VDVE SCL_VDVE INT_VD VD_RST OERX VDOFF HDBSY HDBCV HDBSC HDBPR HDBPB HDBPY SCL_VDVE RST_VE SDA_VDVE OEDECTH
16、VSYNC HSYNC FIELD/DE Y(P10-19)ITU656 Up-covert route from S-Video & Composite to Component (C.C. OK) VX-50 does not output C.C. properly. CR(P20-29) CB(P0-09) LLC RTC OEDEC SCL_RX SDA_RX RX_RST MUTEOUT INT_RX SCDT DDCSDA1 DDCSCL1 VD_SCK VD_SI VD_STB VSYSRST VD_SO TXMUTE RXMUTE CEC_IO VSYNC VOCLK HSY
17、NC FIELD/DE HSYNC VSYNC CR(P0,9) Y(0,9) CB(0,9) VICLK VIFLD1 VIDEN1 27MHz CR(O26-O35) Y(O14-O23) CB(O2-O11) CR(O24-O35) CB(O0-O11) Y(O12-O23) FIELD/DE HSYNC MCLK Y VSYNC ICDK CR CB SD0_3 LRCK_HDMI BCK_HDMI SCL_TX SDA_TX RST_TX INT_TX ODDC_SDA ODDC_SCL HPLGDET HDMI_POW OETX OERXTH CR Y CB TXDB RXDB R
18、ESET VSPREQ/BOOT +3.3VHD +3.3VHD +3.3VHD OE444 OEEN PRODDC1 HPR_R1 VIDEO BOARD NAVD-9052 Q8701 MPD70F3716GC-8EA VIDEO MICROPROCESSOR TO MAIN MICROPROCESSOR TO MAIN MICROPROCESSOR Q8405 SN74CB3Q3305 HDMI RECIEVER SII9135CTU or SII9135ACTU Q8501 256 Mbit SDRAM X4 EVNODD TO DSP BOARD U8001 VX-50 IP con
19、version Scaler & OSD U8031 128 Mbit FLASH MEMORY HDMI INPUT MULTIPLEX Q8101 AD8196 VIDEO DECODER R0X2 R0X1 R0X0 R0XC PRESET SCDT INT CSDA CSCL MUTEOUT MCLKOUT MCLKIN SCK WS SD0-7 SPDIF Y(O12-O23) CB(O0-O11) CR(O24-035) DE HSYNC VSYNC ODCK W1 VICLK1 U5 VICNTL0_VS V3 VICNTL1_HS /RESET Y24 TXDB/DATA16
20、Y23 RXDB Y21 TXDA Y22 RXDA Y26 TWIBDAT U21 TWIBCLK Y25 TWIADAT V21 TWIACLK U22 VOFIELD VODAT(20,29) VODAT(10,19) VODAT(0,9) V22 VOACT W24 VOHS W23 VOVS W26 VOCLK FLASH_CS(0,1) PCI_CBE(1.3) PCI_AD(0-31) GPIO(16,22) W2 VICNTL3_DEN V4 VICNTL2_FIELD VIDAT(0,9) VIDAT(10,19) VIDAT(20,29) AB11 REFCLK DSCL0
21、 DSDA0 R0PWR5V R1X2 R1X1 R1X0 R1XC DSCL1 DSDA1 R0PWR5V Q8901 ADV7320 VIDEO ENCODER 1 RTC 2 LLC 3 VSYNC 4 HSYNC 5 FIELD/DE 8 Y(P10-19) 21 SDA 22 SCLK 33 RESETB 9 10 11 HDBSC 12 HDBCV 13 HDBSY 14 HDBPR 15 HDBPB 16 HDBPY Q8800 ADV7401 71 HDASY 75 HDASC 73 HDACV 76_77 HDAPY 74 HDAPB 72 HDAPR 3 INTREQ 19
22、_81 SDA1_2 16_82 SCLK1_2 78 RESET Y(P10-19) CB(P0-P9) CR(P20-29) 98 FIELD/DE 4 HC/CS 99 VS 36 LLC 15SFL/SYNCOUT 1 1OE 1 1OE D2+/- D1+/- D0+/- CK+/- CERemote DDC CLK DDC DATA +5V HP DET D2+/- D1+/- D0+/- CK+/- CERemote DDC CLK DDC DATA +5V HP DET HDMI IN 1HDMI IN 2HDMI IN 3HDMI IN 4 D2+/- D1+/- D0+/-
23、 CK+/- CERemote DDC CLK DDC DATA +5V HP DET D2+/- D1+/- D0+/- CK+/- CERemote DDC CLK DDC DATA +5V HP DET 1K 47K Q8175 BR24L02FV-W 5 SDA 6 SCL 7 WP 8 VCC 1 A0 2 A1 3 A2 4 GND 0 47K 5.6K 5.6K 0 Q8174 47K 1 1OE R8514 33 1 1OE +3.3V Q8401 SIl9134CTU IDCK VSYNC HSYNC DE D16-23 D0-7 D8-15 SD0-3 WS SCK MCL
24、K SPDIF DSDCLK DSDDA INT RESET# CSCL CSDA HPD DSDA DSCL TXC+/- TX0+/- TX1+/- TX2+/- HDMI TRANSMITTER Q8451 SIl9134CTU HDMI TRANSMITTER 4.7K 4.7K +3.3V 47K +3.3V 3 2 1 +13VS Q8305 S-812C50BUC 1 SW 2 GND 3 NC 4 VO 5 VIN 2K 2K 4.7K104Z 10K 4.7K 10K 10K 4.7K 104Z 10K 10K 10K 4.7K AUX_D0 AUX_D1 AUX_D2 AU
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