Yamaha A-S1100 Owners Manual - Page 25

■ Block diagram INPUT SELECTOR PHONO TUNER CD LINE1 LINE2 MAIN IN MC HEAD AMP MM//MC MM EQ AMP LINE2 OUT (REC) INPUT BUFFER AMP REC OUT BUFFER VOLUME Lch ATT.UINT1 ATT.UINT2 ATT.UINT3 ATT.UINT1 ATT.UINT2 ATT.UINT3 VOLUME Rch FLAT (DEFEAT) BUFFER AMP FLOATING & BALANCE POWER AMPLIFIER SP A Lch SP B Lch FLOATING & BALANCE SPEAKER DRIVER MOS FET TONE CONTROL FLAT (DEFEAT) BUFFER AMP TONE CONTROL FLOATING & BALANCE SPEAKER DRIVER MOS FET SP A Rch SP B Rch PRE OUT PRE OUT BUFFER HEADPHONE AMP. METER CIRCUIT REAR PANEL Auto Power Standby Phono MM/MC TRIGGER IN REMOTE IN REMOTE OUT PROTECTION CONTROL CPU CPU/LOGIC, etc. Standby power FOR MC AMP FOR MM EQ AMP FOR After Vol Amp FOR INPUT AMP FOR VOLUME FOR HP AMP INDEPENDENT REGULATED POWER SUPPLY (for AUDIO) MAIN TRANSFORMER Log amplifier Peak / VU DRIVER FLOATING POWER SUPPLY Rch Rch Lch METOR MOTOR VOL RELAY IR REMOTE SPEAKERS METER STANDBY/ON OFF/A/B/A+B OFF/PEAK/VU VOLUME INPUT SEL BASS TREBLE BALANCE AUDIO MUTE FRONT PANEL SUB TRANSFORMER POWER RELAY Lch POWER AMP PRE STAGE SPEAKER OUT Lch + A - + -B SPEAKER OUT Rch + A - + - B HEAD PHONE METER METER UNIT 25 En