Onkyo-HTR500-avr-sm维修电路原理图.pdf
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1、HT-R500 SERVICE MANUALSERVICE MANUAL Ref. No. 3728 042002 120V AC, 60Hz AV RECEIVER MODEL HT-R500 Black models BMDD 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 COMPONENT
2、S 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.CN 收音机爱 好者资料库 4. Memory Preservation This u
3、nit 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 must be plugged in order to charge the back-up system. The memory preservation period after the unit has
4、 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. This period is shorter when the unit is exposed to a highly humid climate. 2. To initialize the unit This
5、 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 abnormally. To perform a result, please follo
6、w the procedure below. 1.Press and hold down the VIDEO-1 button, then press the STANDBY/ON button. 2.After clear is displayed, the preset memory and each mode stored in the memory, such as surround, are initialized and will return to the factory setting. 3. Safety-check out (Only U.S.A. model) After
7、 correcting the original service problem, perform the following safety check before releasing the set to the customer. Connect the insulating-resistance tester between the plug of power supply cord and screw on the back panel. Specifications: 3.3Mohm+/-10% at 500V. 1. Replacing the fuses This symbol
8、 located near the fuses indicates that the fuse used is fast operating type. For 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,
9、nuntiliser que fusibles de meme type. Ce darnier est la qu le present symbol est appse. CIRCUIT NO. PART NO. DESCRIPTION F6901,252198 or8A-UL or F69022522618A-T/UL-ST2,Fuse F901 252198 or8A-UL or 2522618A-T/UL-ST2,Fuse HT-R500 SERVICE PROCEDURES RadioFans.CN 收音机爱 好者资料库 HT-R500 EXPLODED VIEW HTR-500
10、P901 11 33 33 31 U9 54 U31 U7 U22 2 2 2 17 17 17 16 P7001 P7503 24 53 51 1 2 25 U3 U6 P101 53 52 2 U5 U1 2 U13 33 F901 U20 9 U19 T901 9 U21 U11 13 Q6050 Q6064 55 12 21 22 23 21 22 23 8 8 7 6 U17 F6901 F6902 U12 U23 U24 2 U10 10 2 5 54 2 3 U4 56 REF.NO. PART NO.DESCRIPTION P901 253332HIT orAS-UC-2 or
11、 253333VOLAS-UC-2,Power supply cord Q6050 2203563,KTC5242-O, Q6054 2202842,2SC5242-R, 2202843,2SC5242-O, 2203562,KTC5242-R, 2203663,MN130S-O, 2203664 orMN130S-Y or 2203666MN130S-P,Transistor Q6060 2203553,KTA1962-O, Q6064 2202832,2SA1962-R, 2202833,2SA1962-O, 2203552,KTA1962-R, 2203673,MP130S-O, 220
12、3674 orMP130S-Y or 2203676MP130S-P,Transistor T901 2301624NPT-1446D,Power transformer U11A928501-1FNADG-7401-1F,DSP circuit PC board assy U31A928503-1ANADIS-7403-1A,Display circuit PC board assy U41A928504-1ANASW-7404-1A,Standby switch PC board assy U51A928505-1ANAETC-7405-1A,Headphone terminal PC b
13、oard assy U61A928506-1ANAETC-7406-1A,Front video PC board assy U71A928507-1ANAETC-7407-1A,Connector PC board assy U91A928509-2ANAAF-7409-2A, Power amplifier driver PC board assy U101A928510-2ANAETC-7410-2A,Regulator PC board assy U111A928511-2ANAETC-7411-2A,Secondary PC board assy U121A928512-2ANAET
14、C-7412-2A,Speaker terminal PC board assy U131A928513-2ANAETC-7413-2A,PC board for holder U171A928517-2ANAAF-7417-2A,Power amplifier PC board assy U191A928519-2ANAPS-7419-2A,Terminal PC board assy U201A928520-2ANAPS-7420-2A,Primary circuit PC board assy U211A928521-2ANAPS-7421-2A,Terminal PC board as
15、sy U221A928522-2ANAVD-7422-2A,Video terminal PC board assy U231A928523-2ANAETC-7423-2A,PC board for holder U241A928524-2ANAETC-7424-2A,Thermal detector circuit PC board assy U31240138A orENG06501QR or 240134ATFCE1U114B,Tuner unit REF.NO. PART NO.DESCRIPTION 127111268Front bracket 28381300883TTB+8B,S
16、elf-tapping screw 527100416Chassis 627190503AKGLS-8RF,Holder 7 8 27190813 27190428A KGPS-10RF,Holder KGLS-10RF,Holder 98304400894TTC+8C(BC),Self-tapping screw 10880009NRP-345,Plastic rivet 1127300750Bushing,cord 1227160511Heat sink 138014333SMS8W.SW+14B(BC),Special screw 1628184831Top cover 17838430
17、0883TTB+8B(BC),Self-tapping screw 2127175319BLeg 2228141494Cushion 238381300883TTB+8B,Self-tapping screw 2428325641Knob, volume 2528191957Clear plate 3127122989ARear panel 338384300883TTB+8B(BC),Self-tapping screw 5127212402Front panel 5228135244Badge 53 54 838430088 29110083 3TTB+8B(BC),Self-tappin
18、g screw Tape cloth 55223024AC238,Isolated plate 56260208Wire tie F6901,252198 or8A-UL or F6902 2522618A-T/UL-ST2,Fuse F901 252198 or8A-UL or 2522618A-T/UL-ST2,Fuse P101 2047151512NCFC7-151512,Flexible flat cable P7001 2045102012NCFC5-102012,Flexible flat cable P7503 2047081012NCFC7-081012,Flexible f
19、lat cable ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * HT-R500 EXPLODED VIEW PARTS LIST HT-R500 CAUTION: Replacement for transistor of mark *, if necessary must be made from the same beta group (hFE) as the original type. NOTE: THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELE
20、CTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. HT-R500 BLOCK DIAGRAM 1 RN1441 INPUT GAIN 0/6dB INPUT GAIN 0/6dB INPUT GAIN 0/6dB INPUT GAIN 0/6dB INPUT GAIN 0/6dB INPUT GAIN 0/6dB OPAMP 10.5dB OPAMP 73 74 NC NC VIDEO3 CD TAPE-1 IN TAPE-1 OUT VIDEO-1 OUT VIDEO-1 IN VIDEO-2 IN P DVD MLS/MRS C/S
21、W BACK UP STANDBY S S INPUT ATT -6DB 50KLPF SW 50KLPF C 50KLPF SR 50KLPF SL 50KLPF R 50KLPF L AK4586 96/24 2CH A/D (1/2) AK4586 DIR 1 1 1 1 -1 1 -1 1 UPD784225 AGC SUBMICRO PROCESSOR UPD780232 GC-8BT CS493264 DSP CS493293 (MJJ ONLY) AK4586 96/24 6CH D/A OPTICAL 2 OPTICAL 1 REMOTE SENSOR COMPOSITE VI
22、DEO INPUT VIDEO2 VIDEO1 DVD 12.5MHZ 5MHZ 12.288MHZ 12.288MHZ COMPOSITE VIDEO OUT MONITOR OUT VIDEO 1 +5V +5V - + +7V BD3811 -7V BD3811 +2.5V DSP +3.3V MEMORY OSC COAXIAL VIDEO3 YC S-VIDEO OUTPUT MONITOR OUT YC VIDEO 3 YC VIDEO 2 YC S-VIDEO INPUT VIDEO 1 YC VIDEO 1 YC DVD 9.97K 10K 10K 9.97K 10K 10K
23、80 7978 77 2 69 1 72 66 71 4 3 43 6 5 40 8 7 30 76 75 33 10 9 23 21 26 25 28 27 24 22 12 18 11 14 20 13 16 15 17 19 RST.CS.INTREQ /CL/DA/SCDO RST.CS/CL/DA /CDTO/INT1.2. CTLA/B VMUT2 VMUT1 0dB LA7956 LA7956 LA7956 AK4586 BD3811K1 FL DISPLAY KEY 0dB 0dB 6dB 6dB 6dB MAIN MICRO PROCESSOR To/From Main Mi
24、crorocessor FM/AM TUNER PACK A 1 2 3 4 5 BCD HT-R500 BLOCK DIAGRAM 2 AC OUTLET P351 Q306 OR KRA102S C352 104Z BASSBOOST OPAMP OUTPUT GAIN 0-18dB OPAMP OUTPUT GAIN 0-18dB OPAMP OUTPUT GAIN 0-18dB OPAMP OUTPUT GAIN 0-18dB OPAMP OUTPUT GAIN 0-18dB OPAMP OUTPUT GAIN 0-18dB GAIN 0/6dB GAIN 0/6dB GAIN 0/6
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