Integra-RDA7_1-pwr-sm 维修电路原理图.pdf
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1、RDA-7.1SERVICE MANUALSERVICE MANUALSEVEN CHANNEL AMPLIFIERMODEL RDA-7.1120 V AC, 60HzADDRef. No. 3804Nov, 2004230-240 V AC, 50HzAPP230-240 V AC, 50HzAPA220-230 V AC, 50/60HzAGT220-230 V AC, 50/60HzAGKSAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK ON THESCHEMATIC DIAGRAM AND IN THE PA
2、RTS LIST ARECRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.REPLACE THESE COMPONENTS WITH ONKYOPARTS WHOSE PART NUMBERS APPEAR AS SHOWNIN THIS MANUAL.MAKE LEAKAGE-CURRENT OR RESISTANCEMEASUREMENTS TO DETERMINE THAT EXPOSEDPARTS ARE ACCEPTABLY INSULATED FROM THESUPPLY CIRCUIT BEFORE RETURNING THEAPPLIAN
3、CE TO THE CUSTOMER.RadioFans.CN 收音机爱 好者资料库RDA-7.1SPECIFICATIONSAMPLIFIER SECTIONNumber of channels :Power :Frequency response at -3 dB :Input Impedance :Input signal for max output power :Input Sensitivity (Unbalanced) :Input Sensitivity (Balanced) :THD :Damping Factor :Power consumption USA, Canada
4、 and some Asian model : Other models :Rated Speaker Impedance :GENERALPower Supply :Dimensions (W x H x D) :Weight :7150 watts per channel min. RMS at 8 ohms, 2 channelsdriven from 20 Hz to 20 kHz with no more than 0.1 % totalharmonic distortion (FTC).300 watts per channel min. RMS at 4 ohms, 2 chan
5、nelsdriven at 1 kHz with no more than 0.1 % total harmonicdistortion (FTC).350 W (EIAJ, 4 ohm, 1 kHz, 10 %)300 W (DIN, 4 ohm, 1 kHz, 0.7 %)3.5 Hz - 250 kHz47 kohm each phase1.2 V100 mVrms200 mV0.03 % (20 Hz to 20 kHz)40 at 8 ohm15 A10 A4 ohmsAC 120 V, 60 HzAC 230 V, 50 HzAC 220 V, 50/60 Hz450 x 197
6、x 602 mm17-11/16 x 7-3/4 x 23-11/1652.5 kg, 115.7 lbs.Specifications and features are subject to change without notice.Power supply and voltage vary depending on the area in which the unit is purchased.RadioFans.CN 收音机爱 好者资料库RDA-7.1SERVICE PROCEDURE-1PRIMARY CONNECTIONS FOR DIFFERENT VOLTAGESAC Boar
7、d JumpersFor voltages in the 100V - 120V range, install the two jumpers marked L. For voltages in the 200V - 240V range, install the single jumper marked H.Main Transformer JumpersThe following connections should be made for different line voltages.100V :K1-3 to TB1-4P7 to TB1-3P2 to TB1-2K2-3 to TB
8、1-12P8 to TB1-11P3 to TB1-10110V :K1-3 to TB1-6P7 to TB1-5P2 to TB1-2K2-3 to TB1-14P8 to TB1-13P3 to TB1-10120V :K1-3 to TB1-8P7 to TB1-7P2 to TB1-2K2-3 to TB1-16P8 to TB1-15P3 to TB1-10200V :K1-3 to TB1-4TB1-2 to TB1-3K2-3 to TB1-12TB1-10 to TB1-11220V :K1-3 to TB1-6TB1-2 to TB1-5K2-3 to TB1-14TB1-
9、10 to TB1-13230V :K1-3 to TB1-6TB1-2 to TB1-7K2-3 to TB1-14TB1-10 to TB1-15240V :K1-3 to TB1-8TB1-2 to TB1-7K2-3 to TB1-16TB1-10 to TB1-15RDA-7.1SERVICE PROCEDURE-2PRIMARY CONNECTIONS FOR DIFFERENT VOLTAGES (Continued)Inrush Current Limiter Board(RDA-7-030-A)AC Board (RDA-7-020-B)P2TB1P3P7P4P9P1P10P
10、8K1-3K2-3K2-4K1-41 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16LowLLHHighJumpersRDA-7.1EXPLODED VIEWS-1OVERALLRDA-7.1B06A50B03A51A50A51B04A06x 3 pcs.A05A08(14mm)x 2 pcs.A07(10mm)x 2 pcs.A03A23A04A02A07(10mm)x 2 pcs.A08(14mm)x 2 pcs.A05A06x 3 pcs.A22x 4 pcs.A21A20B02UN02A35UN01A34B01B07UN03A34A35A10A01 (Fron
11、t panel assy) = A02 - A08A635B08A52A52B05RDA-7.1EXPLODED VIEWS-2AMPLIFIER MODULERDA-7.1A61(Top)A60(Base)A62(Bottom)B12(Black)B11(Red)A65RDA-7.1EXPLODED VIEWS-3SCREWSRDA-7.1CutA132A131A130A132A131A132A131RDA-7.1EXPLODED VIEWS-4SCREWS14GROURDA-7.1EXPLODED VIEWS-5SCREWSRDA-7.1SCHEMATIC DIAGRAMS-1POWER
12、SUPPLYA12345BCDRDA-7.1SCHEMATIC DIAGRAMS-2DRIVER CIRCUITA12345BCDC13 / C14ROB C (For audio)C13 / C14C13a / C14aC17 / C20ROB C (For audio)C17 / C20 C17a / C20aRDA-7.1SCHEMATIC DIAGRAMS-3OUTPUT STAGE AND PROTECTIONA12345BCDRDA-7.1SCHEMATIC DIAGRAMS-4PROTECTIONA12345BCDRDA-7.1SCHEMATIC DIAGRAMS-5AC BOA
13、RDA12345BCDRDA-7.1SCHEMATIC DIAGRAMS-6PROTECTION WIRINGA12345BCDRDA-7.1PRINTED CIRCUIT BOARD VIEWS-1AMPLIFIER PC BOARDRDA-7.1A12345BCDEFGHAMPLIFIER PC BOARD (RDA-7-010-F)UN01Side-A (Top)RDA-7.1PRINTED CIRCUIT BOARD VIEWS-1AMPLIFIER PC BOARDRDA-7.1A12345BCDEFGHAMPLIFIER PC BOARD (RDA-7-010-F)UN01Side
14、-A (Top)RDA-7.1PRINTED CIRCUIT BOARD VIEWS-1AMPLIFIER PC BOARDA12345BCDEFGHAMPLIFIER PC BOARD (RDA-7-010-F)UN01Side-A (Top)RDA-7.1PRINTED CIRCUIT BOARD VIEWS-2AMPLIFIER PC BOARDRDA-7.1A12345BCDEFGHAMPLIFIER PC BOARD (RDA-7-010-F)UN01Side-B (Bottom)RDA-7.1PRINTED CIRCUIT BOARD VIEWS-2AMPLIFIER PC BOA
15、RDRDA-7.1A12345BCDEFGHAMPLIFIER PC BOARD (RDA-7-010-F)UN01Side-B (Bottom)RDA-7.1PRINTED CIRCUIT BOARD VIEWS-2AMPLIFIER PC BOARDA12345BCDEFGHAMPLIFIER PC BOARD (RDA-7-010-F)UN01Side-B (Bottom)RDA-7.1ADJUSTMENT PROCEDURE-1C7 (+) C9 (-) L1 : 70 V +/- 3 V: -70 V +/- 3 V: 0 V +/- 0.1 VMain Chassis Check1
16、.2.3. 4. 5. 6.7.Assemble the chassis / power supply. Connect the power cord into an AC wall outlet. Turn ON the unit. The blue ON LED should come ON. Turn OFF the unit and plug a remote control plug into the Remote IN jack. Turn ON the unit. The Red Standby LED should be ON. Apply 12V to the remote
17、control plug. The unit should turn ON, the blue LED should be ON. Measure the secondary voltages on all power cables going to the channels. Each secondary should read 50 VAC +/- 2 VAC. BIAS & DC Offset AdjustmentConnect the assembled channel to the power transformer. Connect the power cord into an A
18、C wall outlet. Turn ON the unit. After about 3 seconds the two green LEDs should turn ON. Measure the following voltages and make sure they are within the specifications. Connect the DC voltmeter to the test points TP1 (-) and TP2 (+) and adjust the voltage to 4 mV using the R46 BIAS adjustment trim
19、ming resistor. Allow the channel to warm up for 30 minutes, adjusting the bias currents every 10 minutes. Measure the output DC voltage and adjust it as close to zero as possible using the R24 trimming resistor. 1.2.3.4.5.6.RDA-7.1ADJUSTMENT PROCEDURE-2AC INLETFUSE12V TRIGGERINOUT21Final Assembly Ch
20、eckCheck the screw which is the fixation of AMPLIFIER MODULE when the electric conductivity between 1 and 2 is ruined. Rear panel1/4 PAGERDA-7.1Parts marked by NSP are generally unavailable becausethey are not in our Master Spare Parts List.EXPLODED VIEWS PARTS LISTREF. NO.PART NAMEDESCRIPTIONQTY PA
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