编号10：爱华Aiwa-AD6550-tape-维修图纸手册

STEREO CASSETTE DECKWITH DOLBY NRSYSTEM形MODEL A□-655OEE,UKAIWA(SERVICE MANUAL】soSet using ISO screwsDATE OF ISSUE 26/7/1977SPECIFICATIONSSemiconductors:4 IC's,45 transistors,Bias frequency:100kHz±10kHz35 diodes 2 LED'sFrequency response:LH tape,20~15 kHz (-10 dB)Power source:AD-6550EE:AC110~120V/220-240V30-13kHz±3dB)(switchable)50/60 HzFe-Cr tape,20~17 kHz (-10 dB)AD-6550UK:AC120V/240V30-15kHz(±3dB)(switchable)50/60 HzCrO,tape,20~17 kHz (-10 dB)3015kHz（±3dB)Power consumption:10W(at Dolby off,Rec./pb)Dimensions:420W1×150H)×330(D)mmMotor:38 pulse FGWeight:7.5kgservo motorHead:Ferrite guard head (FGH)Track system:4-track 2-channel stereoInput:MIC:Max.input semsitivity 0.3 mVTape speed:4.76cm/sec.±1%(200 ~10 ks suitable)Wow flutter0.1%(According to DIN 45 500 Blatt 8)LINE IN:Max.input sensitivity 50 mVAutomatic shut-off(More than 50 k)action time:4±1ec.DIN:Max.input sensitivity 0.1 mV/ksPinch roller pressure:375±309(3 k)Take-up torque:50±10g-cmOutput:LINE OUT:Standard output levelFF rewind torque:125±25g-cm0.775V0VU1FF&rewind time:Less than 95 sec.(w/C-60 cassette)Playback output:1.05±0.05 V ILINE/bN)Optimum load impedancemore than 50 knTTA-161)DIN:Standard output levelPlayback noise:Less than 4.5 mV (LH)0.775V(0VU)Less than 3.0 mV (Fe-Cr,CrO,}Optimum load impedanceRec./pb output:0VU±0.5dB(LINE/DIN)more than 50 ks(400Hz0VU)PHONES:3.4mV(+3VU)Rec./pb distortion:Less than 2.0%(LH)Load impedance 8(400 Hz 0 VU)Less than 1.5%(Fe-Cr)Less than 3.0%(CrO.Rec./pb S/N:More than 43/45 dB(LH.DOLBY(400Hz0VU)OFF/ON)Un-WeightedMore than 45/48 dB (Fe-Cr,DOLBYOFF/ON)Specifications and external appearance are subject to changeMore thar45/48 dB (CrO,,DOLBYwithout notice due to product improvement.OFF/ON)Dolby Noise Reduction System is licensed from DolbyChannel separation:More than 28 dB (at 1 kHz 0 VU)Laboratories Incorporated.Cross talk:More than 65 dB (at 1 kHz 0 VU)The the"Double D"symbol are trademarksErasing ratio:More than 60 dB (400 Hz +10 VU)of Dolby Laboratories Incorporated.l