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Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound. Only original MARANTZ parts can insure that your TECHNICAL ASSISTANCE MARANTZ product will continue to perform to the Should you require any other technical support, do specifications for which it is famous.
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"How to establish the parts number for common parts". (NOTE) When you order parts to the Marantz parts center, please take notice of the following points. Please correctly write the parts number of 10 figures following the rule.
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This service manual was prepared for use by Authorized As can be seen from the circuit diagram the Warranty Stations and contains service information for the chassis of Model PM-94 consists of the following Marantz Model PM-94 Stereo Amplifier. units. Each unit mounted on a printed circuit board is discribed within the square enclosed by a bold dotted line on the circuit diagram.
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2. TEST EQUIPMENT REQUIRED FOR SERVICING This table lists the test equipment required for servicing the Model PM-94 Stereo Amplifier. Item Distortion Analyzer Distortion measurements Audio Oscillator Sinewave and squarewave signal source AC VTVM Voltage measurements (AC) Oscilloscope Waveform analysis and trouble shooting and ASO alignment...
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4. ADJUSTMENT PROCEDURE Adjust RN40 (RN41) again to make the pulse Adjustment of output offset voltage width 0,1 ms. Confirm that the voltage at the Remove the MAIN-IN and PRE-OUT plugs, and emitter of Q107 is 63 V. connect a digital voltmeter set to the DC range to the speaker terminals with no signal and no load on the unit.
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