编号13：爱华Aiwa-AD6800-tape-维修图纸手册

STEREOCASSETTE▣ECKWITH DOLBY-NR SYSTEMMODEL AD-GB▣OH,EE,UKAILA SALES是SERVICE LTD019931672AIWA(SERVICE MANUAL】isoSet using ISO screwsAIWADATE OF ISSUE 25/9/1977SPECIFICATIONSSemiconductors8 IC's,86 transistors,10 FETs,Bias frequency:100kHz±10kHz65 diodes 4 LED'sFrequency response:LH-tape,20~16 kHz (-10 dB)Power source:AD-6800H,EE:AC110120V/220~240V30-15kH子dB)switchable)50/60 HzFe-Cr tape,20~19 kHz (-10 dB)AD-6800UK:AC120V/240V(switchable)50/60 Hz3017kt3dB)20wCrO,tape,20~18 kHz (-10 dB)450W0X162(H)×335(D1mmWeight:10 kg3016k3dB1Track system:4-track 2-channel stereo(at Dolby off,Rec./pb)Tape speed:4.76cm/sec.±1%Motor:38 pulse FG servo motorWow flutter:0.1%(Accoding to DIN 45 500)Head:Ferrite guard head (FGH)0.05%(WRMS)at pBInputMIC:Max.input semsitivity 0.25 mVAutomatic shut-off:3±2sec.(200 ohms 10 k-ohms suitable)action timeLINE IN:Max,input sensitivity 50 mVPinch roller pressure:520±40g(More than 50 k-ohms)Take-up torque:50±10g-cmDIN:Max.input sensitivity 0.1 mV/k-ohms110+50(3 k-ohms)FF rewind torque:-109-cmOutput:LINE OUT:Standard output levelFF time:95 +10 sec (w/C-60 cassette)0.775V(0VU)Rewind time:100 10 sec (w/C-60 cassette)Optimum load impedanceitwput1.1 +0.05 V (LINE/DIN)more than 50 k-ohmsDIN:Standard output levelPlayback noise:Less than 4.5 mV (LH)0.775V0VU1Optimum load impedanceRec./pb output:more than 50 k-ohms(400Hz0VU1PHONES:Load impedance 8 ohmsRec./pb distortion:Less than 1.5%(LH)to 150 ohms(400Hz0VU)Less than 1.5%(Fe-Cr)Less than 3.0%(CrO.Rec./pbS/N:More than 43/45 dB (LH,DOLBY400 Hz 0 VU)OFF/ON)(Un-Weighted)More than 45/48 dB (Fe-Cr,DOLBYOFF/ON)More than 45/48 dB (CrO,.DOLBYOFF/ON)Channel separation:More than 28 dB (at 1 kHz 0 VU)Cross talk:More than 65 dB (at 1 kHz 0 VU)Erasing ratioMore than 60 dB (400 Hz +10 VU)VU meter:0.5 dB (at 400 Hz 0 VU+3 dB)display error:Specifications and external appearance are subject to changePeak meter+10VU±1dBwithout notice due to product improvement.display error:0 VU +0.5dBDolby Noise ReductionSystem is licensed from Dolby400Hz,0VU:-10VU±1dBLaboratories Incroporated.0.775V1-20v±2dBThe name "Dolby"and the "Double D"'symbol are trademarks-30VU±1dBof Dolby Laboratories Incorporated.