Akai-ACA-2664-Service-Manual(1) 电路图 维修手册.pdf

? ? ? RadioFans.CN 收音机爱 好者资料库 Circuitry Frame ACA- 2664 ACA- 2624 IC302BIC303BIC303A POWER AMP SW301B RL- OUT RR- OUT 57 LPF HPF OFF 31 75 VR302AVR303DVR303C IC302AIC403BIC403ASW301A 5731 LPF HPF OFF 31 75 VR302BVR303BVR303A +12V D.C. REM F01 T07 T08 T01- 04 T09,T10 T11- T16 T100,T200 T300,T400 T01 IC02 IC03 VEE VCC +/- 15 T17 T166,T167 T266,T267 T366,T367 T466,T467 PTOTECT MUTE CONTROL TRANS W/2 CH3 W/2 CH1 W/2 CH3 W/2 CH1 W/2 CH3 W/2 1.5/1.5 1.5/1.5 - 220 CH1 & CH2: 44/45CH3 & CH4: 42/41 CH1 & CH2: 42/44CH3 & CH4: 38/40 CH3: 93.6/97.4CH4: 95.2/98.8Rear L/R Rear L/RCH3: 96.4/100.0CH4: 96.0/98.0 CH1: 95.8/100.2CH2: 94.3/97.7 71 Full range 76 A-Weighting Car audio amplifier capability request Client Name: AKAISerial Number : Model Name: ACA-2664Accomplished Qty: PO. Number:Accomplished Date: Capability Request / ACA-2664 1/2 NOItemUnitConditionCapability request Sample1： Car audio amplifier capability request Client Name: AKAISerial Number : Model Name: ACA-2664Accomplished Qty: PO. Number:Accomplished Date: Work normallyFrequencykHz No signal inputAmplifier: +/- 32.16Preamp: +/- 16 THD10% 2Amplifier: +/- 26.45Preamp: +/- 15 THD10% 4Amplifier: +/- 28.79Preamp: +/- 16 1/2f23 HzCH1 & CH2: + 8CH3 & CH4: +8 f45 HzCH1 & CH2: + 12CH3 & CH4:+12 2f90 HzCH1 & CH2: + 8CH3 & CH4: +8 1/2f15 HzCH1 & CH2: - 0.5CH3 & CH4: -0.5 f30 HzCH1 & CH2: - 3CH3 & CH4: -3 2f60 HzCH1 & CH2: - 8CH3 & CH4: -8 1/2f100 HzCH1 & CH2: - 0.5CH3 & CH4: -0.5 f200 HzCH1 & CH2: - 3CH3 & CH4: -3 2f400 HzCH1 & CH2: - 12CH3 & CH4: -12 1/2f17 HzCH1 & CH2: - 16CH3 & CH4: -16 f35 HzCH1 & CH2: - 3CH3 & CH4: -3 2f70 HzCH1 & CH2: + 1CH3 & CH4: +1 1/2f2.25 KHzCH1 & CH2: - 7CH3 & CH4: -7 f4.5 KHzCH1 & CH2: - 3CH3 & CH4: -3 2f9 KHzCH1 & CH2: - 1CH3 & CH4: -1 Operated by: Xiaoyulin Approved by: Zhaozhigang CH1&CH2 contra-phase / CH3&CH4 contra-phase Date: 2006/03/02 8 On-off power part testing 9Phase between channelsWork normally- 10 Gain difference between channels dB 3 Volume output ( maxmax decrese 46dB ) Not self-excitation and parasitism V In-phase Product specification Power supply voltage 11StabilityRated- 12Bass boost rangedBProduct specification Low-Pass crossover （Max.） dBProduct specification 13 Low-Pass crossover （Min.） dBProduct specification High-Pass crossover （Max.） dBProduct specification 14 High-Pass crossover （Min.） dBProduct specification Product specification Static 15Power supply (Rated) Distortion:10% W 16Function testing Power on delay Product specificationDC offset Protection Amplifier on/off no sound on/off caraudio on/off Remote Switch Short circuit Protection Temperature testing1/3 Max. Power 4hours testingOK power supply (-) terminal with speaker (+/-) terminal、VR crust 、RCA terminal OK 17 terminal short-circuit testing Heat sink with power supply (+/-) terminal、speaker (+/-) terminal、 VR crust 、RCA terminal No noise or spark OK power supply (+) terminal with speaker (+/-) terminal、VR crust 、RCA terminal OK 35.79 Output in-phase 1.5 OK / 3s / OK OK OK OK OK OK Note: Power supply voltage: 14.0V Capability Request / ACA-2664 2/2