'AL AUDIO, AUDIO OUTPUT), HP-75 (HEADPHONE AMP), AF-52 (ANALOG AUDIO) SCHEMATIC DIAGRAMS
-31 BOARD: 1,000 Series, HP-75 BOARD: 6,000 Series, AF-52 BOARD: 8,000 Series ~
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'signal path
ES: PB DIGITAL
AUDIO Signal
>: PB ANALOG AUDIO Sianal