Sharp Optonica SO-9100H Service Manual

PHOTO : SO-9100HThe SO-9100H and SO-9100HB are quite the same except for the Panel andknobs different in color between them.So, this Service Manual is prepared refering to the SO-9100H alone: the dif-ference of the SO-9100HB against it can be made out with a reference to“DIFFERENTIAL PARTS LIST” at the end of PARTS LIST.BB OPToNica] SERVICE MANUALSTEREO CONTROLAMPLIFIERMODELSO-9100H(Silver Panel)SO-9100HB(Brown Panel)In the interests of user-safety the set shouldbe restored to its original condition and onlyparts identical to those specified be used.SPECIFICATIONSGENERAL DESCRIPTIONPower source: A.C. 110/220/240V, 50/60HzPower consumption: 25WSemiconductors: 16-Transistors82-FETs21-Diodes18-LEDsDimensions: Width; 430mm (16-15/16 inch)Height; 75mm_ (2-31/32 inch)Depth; 382mm (15-1/16 inch)Weight: 6.5kg (14.4 lbs.)Circuit type:Head amplifier for moving coil type cartridge;Equalizer;All FET, ICL (input capacitorless), 2-stage differential amplifier, DC ampli-fierICL (input capacitorless), all FETdifferential amplifier, complementaryfinal stage, dual power supply, DCamplifierTone control; ICL (input capacitorless), all FETdifferential amplifier, dual powersupply, DC amplifierInput sensitivity and input impedance:PHONO1;3mV/47KohmsPHONO2;3mV/22Kohms,47Kohms,100K ohms200pF, 300pF, 400pFPHONO3;0.3mV/100ohmsAUX; 150mV/47KohmsTUNER; 150mV/47KohmsTAPE PB 1 and 2;TAPE PB (DIN socket);150mV/47K ohms150mV/47K ohmsAllowable maximum input for equalizer:PHONO 1 and 2; 300mV (RMS, 1kHz)PHONO 3; 27mVRIAA curve deviation: +0,2dB (20Hz to 20kHz)Fre cy re +Ram i ge nOE Ns Bi(TUNER, AUX, TAPE PB)Tone control: Bass; +10dB at 100HzTreble; +10dB at 20kHzLow filter: —3dB at 15Hz, 6dB/octave—3dB at 30Hz, 6dB/octaveHigh filter: —3dB at 8kHz, 6dB/octave—3dB at 15kHz, 6dB/octave+7.0dB at 100Hz+4dB at 10kHzAudio muting: —20dBSignal to noise ratio: (using IHF ‘‘A’’ network)PHONO 1 and 2; 84dBPHONO 3; 70dBTAPE, AUX or TUNER; 100dBOutput level and loaded impedance:REC 1 and 2; 150mVREC (DIN socket); 30mV/82K ohmsOutput: 1V/22K ohmsHarmonic Distortion:PHONO 1 and 2; 0.008% at 10V, 20Hz— 20kHzTUNER and AUX; 0.003% at 5V, 20Hz— 20kHzIntermodulation: 0.002% at 3VSpecifications of this model are subject to change withoutprior notice.Loudness contour:SHARP CORPORATION OSAKA, JAPAN$O-9CN