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... _,,~ ...-.. ...__ .~. ~?-;~..:.: u· - ..~...----... -·····'~" u :.:rmr·-~ .-·---J.- - ,.--_,;··· DC STEREO INTEGRATED AMPLIFIER MODELAM. u06 ALSO APPLICABLE TO BLACK PANEL MODEL SECTION 1 SECTION 2 SECTION 3 SERVICE MANUAL... 3 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 29 SCHEMATIC DIAGRAM ... 42 SECTION 1 SERVICE MANUAL TABLE OF CONTENTS I. Il. III. IV. V. VI. VII. VIII. IX. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DISMANTLING OF UNIT... CONTROLS . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . PRINCIPAL PARTS LOCATION . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . VOLTAGE CONVERSION . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . OPERATION OF PULSE POWER CIRCUIT ... : . . . . . . . . . . . . . . . . LEVEL DIAGRAM . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .·. . . . . . . . CLASSIFICATION OF VARIOUS P.C BOARDS . . . . . . . . . . . . . . . . . . . 1. P.C BOARD TITLES AND IDENTIFICATION NUMBERS . . . . . . . . . . . 2. COMPOSITION OF VARIOUS P.C BOARDS . . . . . . . . . . . . . . . . . . . . 4 5 6 7 8 9 16 17 18 18 19 For basic adjustments, measuring methods, and operating principles, refer to GENERAL TECHNICAL MANUAL 3 I. TECHNICAL DATA POWER AMPLIFIER SECTION RATED POWER OUTPUT 2..CHANNEL DRIVEN POWER BANDWIDTH (lHF) SIGNAL TO NOISE RATIO (!HF) PHO NO AUX RESIDUAL NOISE CHANNEL SEPARATION (IHF) PH ONO DAMPING FACTOR OUTPUT SPEAKERS HEADPHONES 68 watts per channel, minimum RMS, at 8 ohms from 20 to 20,000 Hz with no more than 0.008% total harmonic distortion 6 Hz to 60 kHz/8 ohms (Total harmonic distortion: 0.05%) Better than 84 dB Better than 97 dB" Less than 0.5 mV at 8 ohms Better than 60 dB at 1,000 Hz More than 180 (1 kHz, 8 ohms) A, B (4 to 16 ohms)/A+B (8 to 16 ohms) 4 to 16 ohms PREA.J.'1PLIFIER SECTION INPUT SENSITIVITY /IMPEDANCE PHONO 1 PHONO 2 AUX TUNER TAPE MONITOR OUTPUT LEVEL/IMPEDANCE TAPE REC REC OUTPUT FREQUENCY RESPONSE PHONO (RIAA EQUALIZATION) AUX, TUNER, TAPE MONITOR TONE CONTROL BASS MIDRANGE TREBLE AUDIO MUTE LOUDNESS CONTROL MC: 80µV/10 ohms !\.IM: 3 mV/33k, 47k, lOOk ohms switchable 3 mV/47 kohms 150mVI100 kohms 150 mV/100 kohms 150 mV/100 kohms (PIN) 20 mV/100 kohrns (DIN) 150 mV/1 kohms (PIN) 150 mV/100 kohms (DIN) l V/l kohms 30 Hz to 15 kHz ±0.2 dB 6 Hz to 100 kHz +O dB, -2 dB ±8 dB at 100 Hz ±6 dB at 1 kHz ±8 dB at 10 kHz -20 dB at 100 Hz 1. 3 dB 2. 6 dB 3. 9 dB (VOLUME control -3 dB at 18 Hz -3 dB at 10 kHz at 10 kHz 1. 2.5 dB 2. 5 dB 3. 8 dB set at -30 dB position) FILTER SUBSONIC HIGH MISCELLANEOUS POWER REQUIREMENTS 120V, 60 Hz for USA and Canada 220V, 50 Hz for Europe except UK 240V, 50 Hz for UK and Australia 110V/220V/240V, 50/60 Hz internally switchable for other cou