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Gallien-Krueger 8000RB, Руководство по обслуживанию

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Gallien-Krueger 8000RB Скачать руководство пользователя страница 15

Содержание 8000RB

Страница 1: ...Service Manual 800RB ...

Страница 2: ...Table of Contents Operating Instructions 3 Turn On Calibration Procedure 6 Schematics 11 Engineering Change Orders ECOs 24 Bill of Materials 34 ...

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Страница 6: ...3 Adjust variac to 120V and turn speaker OFF 4 Set bias 300W adjust R38 on 44 board for 5mV DC across R48 R49 R50 most pos of the 3 and R54 R55 R56 most neg of the 3 5 Set bias 100W adjust R14 for on 44 board for 5mV across R25 R26 6 Power LED and boost LED should be lit 7 Connect oscillator to input 200 Hz 46dBV 8 Turn on 4 ohm load for 300W amp and 8 ohm load for 100W amp 9 Adjust volume for sli...

Страница 7: ...nput 2 Turn front panel knobs to 10 switches out 3 Connect speaker to 100W output and listen for noise It should be smooth and not crackling Repeat for 300W output 4 Change AC voltmeter range to 1V 5 Noise both amplifier outputs should measure less than 400mV 6 Engage low cut contour and hi boost Noise 400mVrms 7 Volume to 0 Noise 110mVrms 8 Boost to 0 Noise 15mVrms 9 Engage bi amp switch 100W noi...

Страница 8: ...ut on both amps 100W 32 Vrms 300W 40Vrms B Check master pots when looking at output of both amps 10 Turn loads off 11 Connect square wave input 200 Hz 20 mVp p 44dB A Boost on zero volume at 2 o clock B Test attenuation and filters C Test tone control D Turn on bi amp check if crossover works on both high and low amps NOTE When test filters tones and crossover compare w figures 12 Turn bi amp off ...

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