Onkyo-DTR70_2-avr-sm 电路图 维修手册.pdf
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1、DTR-70.2 SERVICE MANUALSERVICE MANUAL RC-772M AV RECEIVER Black model MODEL DTR-70.2(B) 120V AC, 60Hz 220-240V AC, 50/60Hz B MDD B MMA Ref. No. 4239 AUG, 2010 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE
2、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 THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.
3、CN 收音机爱 好者资料库 DTR-70.2 SERVICE PROCEDURE-1 On/Standby Clear Stand-by VCR/DVR 1. Replacing the fuses 2. Safety check out (U.S.A. model only) After correcting the original service problem, perform the following safety check before releasing the unit to the customer. Leakage current Check Measure the l
4、eakage current to a known earth ground (water pipe or conduct etc.) by connecting a leakage current tester between the earth ground and exposed metal parts of the unit (input/output ground terminals, screw heads or metal overlays etc.). Plug the power supply cord directly into a 120Vac 60Hz wall soc
5、ket and turn ON/STANDBY button on. Any current measured must not exceed 0.5mA. 3. Memory Backup This model uses a EE-PROM IC in order to retain radio presets and other settings. So, memory contents will be kept eternally with no care. 4. To initialize the unit 1. ON/STANDBY (Power On) 2. VCR/DVR + O
6、N/STANDBY. Preset memory and each mode stored in the memory, are initialized and will return to the factory settings. This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse, For fuse rating, ref
7、er to the marking adjacent to the symbol. Ce symbole indique que le fusible utilise est e lent. Pour une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre. REF NO.PART NAMEDESCRIPTIONPART NO.REMARKS F2000 F2000 or F2001 F2001 or
8、 F2004 F2004 or F2005 F2005 or F6601-F6604 F9100 F9100 F9100 or F9301 F9301 or F9401 F9401 or F9402 F9402 or 4A-UL/T-233 4A-T/UL-ST2 4A-UL/T-233 4A-T/UL-ST2 1.25A-UL/T-233 1.25A-T/UL-ST2 1.25A-UL/T-233 1.25A-T/UL-ST2 20A-UL-250V 12A-UL-ST6 6.3A-SE-EAK 6.3A-SE-TL250V 3.15A-UL/T-233 3.15A-T/UL-ST2 3.1
9、5A-UL/T-233 3.15A-T/UL-ST2 3.15A-UL/T-233 3.15A-T/UL-ST2 252325GR 252257GR 252325GR 252257GR 252318GR 252251GR 252318GR 252251GR 252304GR 252340GR 252079GR 252279GR 252323GR 252256GR 252323GR 252256GR 252323GR 252256GR ! ! ! ! ! ! ! ! ! !, !, !, ! ! ! ! ! ! FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FU
10、SE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE : 120V,USA model : 220/230-240V,Australian model RadioFans.CN 收音机爱 好者资料库 DTR-70.2 SERVICE PROCEDURE-2 Main: 1.03/10806AH DSP 1st/NET: 1.02/10809AHA Video: 1.02/10806AR DSP 2nd: 1.00/10519AH2 VSP(Reon): 1.01/10624AEO Main: 1.03/10806AH TONE TONE TONE TO
11、NE DisplayOn/Standby TONE TONE TONE TONE TONE TONE TONE TONE DSP 3rd: 1.03/10909BH3 VSP(Reon): 1.01/10624AEO TX-NR5008, NR3008, PR-SC5508 AEO DTR-70.2, DTR-80.2, DHC-80.2 AEI Tone Tone 5. To check version of Microprocessor, DSP and Video FW(Firmware) 1. ON/STANDBY (Power On) 2. DISPLAY + ON/STANDBY.
12、 3. TONE Tone - Forward TONE Tone - Reversed. 4. ON/STANDBY (Power Off). Main Microprocessor 1st DSP/NET (DA830) Video Microprocessor 2nd DSP VSP (Video Signal Processor) FW Version displayed only for 3 seconds. e.g. TX-NR5008 : DTR-70.2/ 80.2, DHC-80.2 3rd DSP RadioFans.CN 收音机爱 好者资料库 DTR-70.2 EXPLO
13、DED VIEWS-1 DTR-70.2 A139 x 2 pcs. A205 x 8 pcs. A285 x 2 pcs. A279 MDD type - x 9 pcs. MMA type - x 10 pcs. A261 x 49 pcs. A555 x 6 pcs. A557 x 3 pcs. A203 x 8 pcs. A201 x 5 pcs. A171 x 3 pcs. A181 x 3 pcs. A169 A167 A179 A185 A183 A175 A177 A173 A170 A165 x 3 pcs. A197 x 3 pcs. A163 x 4 pcs. A137
14、x 4 pcs. A131 A133 A255 A187 A189 A191 A193 A215 L=10mm A215 L=50mm A551 A553 A561 MDD type only A287 A289 A291 A293 A151 A141 L=60mm Q9427 Q9429 F2001 F2004 F9100 U0073 U011 U0040 U0055 U0050 U0052 U0053 U0056 U0054 U0041 U0051 U008 U0062 U0071 U0075 U0070 P106 P4008 P4009 P4104 F9401 F9402 F2005 Q
15、9430 Q9428 Refer to “EXPLODED VIEWS-2” Refer to “EXPLODED VIEWS-3” A694 A135 A200 A263 A147 L=400mm A223 x 2 pcs. A221 x 2 pcs. P9008 F2000 P9000 A385 x 2 pcs. P8002 U0057 A157 A158 A153 x 4 pcs. A159 x 8 pcs. A155 x 4 pcs. A161 x 4 pcs. DTR-70.2 EXPLODED VIEWS-2 DTR-70.2 A005 x 4 pcs. A023 x 3 pcs.
16、 A011 x 2 pcs. A013 x 2 pcs. A037 x 4 pcs. A125 x 4 pcs. A071 x 4 pcs. A125 x 4 pcs. A081 x 4 pcs. A077 x 2 pcs. A075 x 3 pcs. A085 x 3 pcs. A119 x 2 pcs. A119 x 2 pcs. A039 x 9 pcs. A061 x 4 pcs. A045 x 2 pcs. A043 x 3 pcs. A057 x 3 pcs. A013 x 2 pcs. A007 x 4 pcs. A009 x 8 pcs. A009 x 10 pcs. A005
17、 x 4 pcs. A019 x 8 pcs. A007 x 4 pcs. A031 x 4 pcs. A297 x 2 pcs. A299 x 2 pcs. Q6060A A001 A049 L=40mm A003 A055 A053 A069 A073 A079 P061 P062 A067 A087 A083 A127 L=50mm A065 A059 A041 A017 A025 A027 A021 A029 U0021 U0012 U0013 U0014 U0011 U0010 U0080 U0083 U0087 U0084 U0088 U0082 U0086 U0081 U0085
18、 U0055 U0020 A295 x 2 pcs. A298 A296 A033 Q6050A Q6051A F6604 F6601 F6602 F6603 T904 T903 F9301 Q6065 Q6063 Q6055 Q6053 Q6057 Q6050 Q6067 Q6060 Q6061 Q6051 Q6058 Q6054 Q6056 Q6052 Q6068 Q6064 Q6066 Q6062 Q6061A A121 x 2 pcs. A121 x 2 pcs. A049 L=40mm A126 x 4 pcs. A126 x 4 pcs. A215 L=10mm A062 A141
19、 L=40mm A141 L=40mm T901 A247 A117 x 4 pcs. A223 A225 x 2 pcs. A233 x 2 pcs. A221 A231 x 2 pcs. DTR-70.2 EXPLODED VIEWS-3 DTR-70.2 A691 x 2 pcs. A653 x 2 pcs. A655 x 2 pcs. A659 x 3 pcs. A637 x 2 pcs. A663 x 3 pcs. A605 x 4 pcs. A657 x 3 pcs. A643 x 2 pcs. A653 x 2 pcs. A651 x 19 pcs. A645 A671 A541
20、 A633 A693 A661 A691 A615 A603 A611 A613 A631 A685 A591 A601 A649 A607 A681 A635 A638 A639 A641 A653 A345 U0091 U0067 U0064 U0066 U0063 U0060 U0061 U0062 P8641 P7501 P3101 JL4103 A647 TX-NR3008/ 5008, TX-NA5008, DTR-70.2/ 80.2, PR-SC5508, DHC-80.2 SCHEMATIC DIAGRAMS-1 BLOCK DIAGRAM AUDIO SECTION TX-
21、NR3008/ 5008, TX-NA5008, DTR-70.2/ 80.2, PR-SC5508, DHC-80.2 DAC C DAC FR MCH SL MCH SR DAC SR MIX R DAC SL MCH C Z4R Z4L MAIN L DAC FL MIX L MAIN R MIX R DIRECT R MIX L DIRECT L DAC SW MCH SW DAC RH DIRECT DAC_RH DAC LH DAC_LH DIRECT MCH SBR DAC SBR MCH SBL DAC SBL AMUTE AMUTE FHZ2MUTE SRZ4MUTE SBZ
22、3MUTE PRESW PREFH PRESB PRESR PREC PREF PLYPSVSW Z3MUTE Z2MUTE Z3 Z3 MCH_CT MCH_SW MCH_SL MCH_SR DAC_SR DAC_SL DAC_CT DAC_FR DAC_FL DAC SW2 DAC_SW DAC_SBR DAC_SBL MCH_SBR MCH_SBL L L R R L R L L R R L R L R L L R R PHONO MM FRONT LEFT FRONT RIGHT CENTER SPEAKER TERMINALS HEADPHONES L R L R CD TUNER
23、( For only SA*) CBL/SAT IN VCR OUT VCR IN SBL FL/FR L R L R SL SR MC/MSW C SW FRONT OUT1 OUT2 OPT1 (FRONT IN) OPT2 HDMI MSL/MSR +29dB +29dB +29dB +29dB +29dB +29dB +29dB +29dB +29dB R L SW R L SW FR Z2 LINE OUT Z3 LINE OUT DVD C PREOUT SBL SR SL SBR SW L SW R LH RH FL FR C SL SR SBL SBR OPT3 PHONO E
24、Q PACK except SA* TUNER TAPE OUT TAPE IN GAME/TV IN IN1-max7 9.2CH for US LH RH FL FR C SL SR CS3318 +6dB VLSC2 VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB VLSC2 +6dB RX HDMI TX HDMI TX HDMI R 0dB 0dB L ch1 only DHC-* DSP section PLD
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