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Safety guidelines and warnings for operation and maintenance.
Instructions for changing the unit's power source voltage.
Detailed explanation of the A-7070's servo operational amplifier circuit.
Description of the circuit responsible for the power indicator LEDs.
List of parts corresponding to the exploded view diagram.
Parts list for the NAEQ-621 equalizer amplifier circuit board.
Parts list for the NASW-622 switch circuit board.
Parts list for the NAVR-624 volume control circuit board.
Parts list for the NAAF-625 preamp, power amp, and protection board.
Parts list for the NAME-627 output indicator driver circuit board.
Parts list for the NAPS-630 rectifier circuit board.
Parts list for the NASW-626 switch circuit board.
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