Onkyo-TXSR876-avr-sm 电路图 维修手册.pdf
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1、TX-SR876/SA876 SERVICE MANUAL Ref. No. 4094 082008 AV RECEIVER MODEL TX-SR876 MODEL TX-SA876 TX-SR876 Black, Golden and Silver models TX-SA876 Golden model 220-240V AC, 50Hz 220-240V AC, 50/60Hz B MMP, S MMP, B MMB, S MMB G MMT RC-690M SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK
2、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 DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM
3、THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. B MDC, S MDD, GMDT120V AC, 60Hz 220-240V AC, 50/60HzG MMR INPUT SELECTOR LISTENING MODE ONSTANDBY GNITUMYALPSID RC-690M G U I D E E X I T PREV CH DIMMER CDR/MD SATTAPE/AMP SLEEP MACRO REMOTE MODE SUBTITLEAUDIOREPEATPLAY MODE -/-10 11
4、12 VIDEO OFFOPEN/CLOSE TV TV CH TV VOL PLAYLISTRANDOM DVD AUX1AUX2GAME/TV CBL/SATVCR/DVR D. TUN CDTUNERTAPE PHONO VCRVCRDVDDVDHDDHDD S. RESTORE REC ENTER TEST TONE AUDIO SEL CH SEL SURR DIRECTTHXPURE A STEREO LEVEL+LEVEL- L NIGHT ALL ST T O P M E N U M E N U VOL CH DISC ALBUM TV VCR CABLEDOCK DVD RE
5、CEIVER CD + - 123ZONE3 ZONE2 INPUT + - +100CLEAR 123 456 789 S E T U P R E T U R N Re-EQ TX-SR876 RadioFans.CN 收音机爱 好者资料库 EXPLODED VIEWS-1 TX-SR876/SA876 TX-SR876/SA876 U42 DC,DD type Note-1 (MB Type) Note-3 Note-1: Note-1 Note-2 Note-2 Note-2: Note-3: U43 A133 A128 A132 A150 A069 x 4 pcs. A070 x 4
6、pcs. P6800 x 18 pcs. A008 x 3 pcs. A008 x 3 pcs. A008 x 3 pcs. A008 x 2 pcs. A008 x 15 pcs. A008 x 2 pcs. A008 x 2 pcs. A008 x 2 pcs. A402 x 6 pcs. A406 x 3 pcs. A321 x 2 pcs. A113 A008 x 5 pcs. A068 x 4 pcs. A075 x 3 pcs. A076 x 4 pcs. A037 x 51 pcs. A037 x 8 pcs. A037 x 2 pcs. A037 x 2 pcs. A037 x
7、 5 pcs. A037 x 2 pcs. A037 x 4 pcs. A114 x 2 pcs. A094 x 2 pcs. A078 x 3 pcs. A066 A400 A022 A411 A410 A137 A270 A086 A049 A205 A219A239 A223 A037 A037 A221 A209 A211 A213 A215 A259 A311 A313 A315 P9008 DT,MP,MB,MT type DT,MP,MB,MT, SA876 type A207 A217 A201 A261 A008 A253 A251 A255 A301 A303 A281 A
8、104 A100 A110 P101 P2801 P7501 U33 U38 U41 U39 U34 U35 U36U40 A022 F2501 F2502 U14 U017 U06 U09 U10 U26 U31 U32 A120 U11 U13 U12 U25 U28 U27 U07 U08 U30 P101 F9100 F9000 F9101 F9102 A116 A118 A067 A106 A096 A092 A090 A098 A008 A105 A139 Refer to in EXPLODED VIEWS-2 RadioFans.CN 收音机爱 好者资料库 EXPLODED V
9、IEWS-2 TX-SR876/SA876 TX-SR876/SA876 A008 x 3 pcs. A033 A038 A039 x 2 pcs. A001 U04 U05 T901 A022 A021 A021 A058 A062 A048 A022 Q6093 Q6083 Q6063 Q6053 Q6051 Q6081 Q6061 Q6091 Q6056 Q6066 Q6086 Q6096 Q6084 Q6094 Q6054 Q6064 Q6082 Q6092 Q6052 Q6062 Q6095 Q6085 Q6065 Q6055 Q6090 Q6080 Q6060 Q6050 A015
10、 A001 A022 A022 U37 A040 A049 F9301 P062 P061 A044 A014 A120 F6601 F6603 F6602 F6604 A120 A005 x 4 pcs. A007 x 4 pcs. A011 x 2 pcs. A008 x 4 pcs. A008 x 3 pcs. A008 x 2 pcs. A025 U03 U01 U18 U23 U21 U19 U24 U20 U22 U02 U16 U17 A008 x 7 pcs. A060 x 2 pcs. A042 x 4 pcs. A090 x 4 pcs. A018 A004 A008 A0
11、46 x 4 pcs. A056 x 4 pcs. A008 x 2 pcs. A120 A120 A008 x 2 pcs. A008 x 6 pcs. A008 x 2 pcs. Q6080A x 2 pcs. Q6050A x 2 pcs. A008 x 2 pcs. A005 x 4 pcs. A007 x 4 pcs. A009 x 12 pcs. A009 x 16 pcs. A064 RadioFans.CN 收音机爱 好者资料库 BLOCK DIAGRAMS-1 AUDIO SECTION TX-SR876/SA876 A 1 2 3 4 5 BCDEFGH SPDIF RX0
12、 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_SW MCH_CT CENTER SURROUND LEFT SURROUND RIGHT ZONE2 RIGHT VCR/DVR OUT TAPE O
13、UT 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 2 COAX IN 1 HDMI C SBL HDMI I/F FLASH ROM SD_RAM I2S DSD FL FR SL SR +20dB
14、 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 ZONE3 PREOUT/LINEOUT ADC -6dB -6dB Q3041 CS42516 MAIN B Zone2 Zone3 C2 RL
15、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 TONE 0dB FIX NJU7313AM ch7 ch6 ch5 Q4304 NJU7312AM NJU7312A 0dB FIX 0dB FI
16、X 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 TC74VHC157FTMULTIPLEXER . . . . I2S/DSD MULTIPLEXER TC74VHC157FT Q3001 TC74VHC
17、157FT 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 TMS320D707E001BRFP250 (SD-11) Analog Switch Array Analog Switch HDMI BOARD NAHDM-9
18、114 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 INTERFACE IR OUT IR IR IN NAVD-9052 SD-6 NADG-9074 SD-9 12V TRIGGER OUT ZO
19、NE 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 VLSC BLOCK DIAGRAMS-2 VIDEO SECTION TX-SR876/SA876 A 1 2 3 4 5 BCDEFGH Video
20、 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) OSD 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
21、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 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
22、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 TC74HC4051AF VMUT Q2012,Q2013 NJM2587V Q2012,Q2013 NJM2587V Q2014 MM1512 BPF(140K-6MHz) LPF(6MHz) HDAPY HDAPB HDAPR HDACV
23、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 6dB 6dB . . 6dB 6dB 6dB 6dB 6dBDRV 6dBDRV 75 75 75 75 75 75 6dBDRV 6dBDRV 6dBDRV 6dBDRV 6dB MMP MMP MMP S VIDEO INPUT COMP
24、OSITE 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 Amp Video Amp Q2027 NJU7312AM VCL VDATA VSTB Analog switch MMP S VIDEO OUTPUT COMPOSITE VIDEO COMPOSITE VIDEO COMPONENT
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