Yamaha A-S2100 A-S2100 Owners Manual - Page 25

Block diagram

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English 25 En Phase change (normal / inv.) INPUT SELECTOR BAL HOT (+) COLD (-) BALANCE GAIN SEL UNBALANCE BALANCE CONVERTER HOT (+) PHONO CD TUNER LINE1 LINE2 MAIN IN MC HEAD AMP MM//MC MM EQ AMP LINE2 OUT (REC) PRE OUT COLD (-) REC OUT BUFFER VOLUME ATT.UINT1 ATT.UINT2 ATT.UINT3 ATT.UINT1 ATT.UINT2 ATT.UINT3 FLAT (DEFEAT) BUFFER AMP TONE CONTROL FLAT (DEFEAT) BUFFER AMP FLOATING BALANCE SPEAKER DRIVER MOSFET FLOATING BALANCE POWER AMPLIFIER SP A Lch SP B Lch SPEAKER OUT L CH + A - + -B FLOATING BALANCE SPEAKER DRIVER MOSFET TONE CONTROL PRE OUT BUFFER LOW IMPEDANCE DRIVE HEADPHONE AMP. METER CIRCUIT HEAD PHONE REAR PANEL TRIGGER IN IR IN IR OUT PROTECTION CONTROL CPU CPU/LOGIC, etc. Standby power FOR MC AMP FOR MM EQ AMP FOR After Vol Amp FOR Input Amp FOR VOLUME2 (Rch) FOR VOLUME1 (Lch) INDEPENDENT REGULATED POWER SUPPLY (for AUDIO) MAIN TRANSFORMER Log amplifier Peak / VU DRIVER FLOATING POWER SUPPLY L CH L CH R CH METER METER UNIT To POWER AMP R CH METER MOTOR VOL RELAY IR REMOTE INPUT VOLUME PHONES SPEAKERS METER TRIM OFF/A/B/A+B OFF/PEAK/VU BASS TREBLE BALANCE PHONO AUDIO MUTE MM/MC FRONT PANEL SUB TRANSFORMER POWER RELAY R CH POWER AMP PRE STAGE ■ Block diagram

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25
En
■
Block diagram
CD
TUNER
LINE1
LINE2
LINE2 OUT
PHONO
INPUT SELECTOR
ATT.UINT1
PRE OUT
MAIN IN
MM//MC
FLOATING BALANCE
SPEAKER DRIVER
MOSFET
L CH
FLOATING POWER SUPPLY
FLOATING BALANCE
POWER AMPLIFIER
VOLUME
BALANCE GAIN SEL
MAIN
TRANSFORMER
INDEPENDENT REGULATED POWER SUPPLY (for AUDIO)
FOR
MC AMP
FOR
MM EQ AMP
FOR
After Vol Amp
FOR
Input Amp
FOR
VOLUME1 (Lch)
SUB TRANSFORMER
(REC)
VOLUME
INPUT
BALANCE
BASS
CPU
CONTROL
PROTECTION
SPEAKER OUT
FRONT PANEL
SP A
Lch
SP B
Lch
BAL
ATT.UINT2
ATT.UINT3
ATT.UINT1
ATT.UINT2
ATT.UINT3
LOW IMPEDANCE DRIVE
HEADPHONE AMP.
HEAD PHONE
TRIGGER IN
BUFFER AMP
FLOATING BALANCE
SPEAKER DRIVER
MOSFET
TONE CONTROL
REC OUT BUFFER
POWER RELAY
L CH
L CH
R CH
R CH
RELAY
MOTOR VOL
FOR
VOLUME2 (Rch)
METER
IR IN
IR OUT
Standby power
CPU/LOGIC, etc.
METER
PHONES
TRIM
SPEAKERS
OFF/A/B/A+B
METER
OFF/PEAK/VU
PHONO
MM/MC
AUDIO MUTE
REAR PANEL
METER UNIT
HOT (+)
COLD (-)
Phase change
(normal / inv.)
UNBALANCE
BALANCE
CONVERTER
BUFFER AMP
MC
HEAD AMP
MM EQ
AMP
PRE OUT BUFFER
POWER AMP PRE STAGE
HOT (+)
COLD (-)
FLAT (DEFEAT)
FLAT (DEFEAT)
TONE CONTROL
METER CIRCUIT
To POWER AMP
R CH
Log amplifier
Peak / VU
DRIVER
A
B
+
–
+
–
TREBLE
IR
REMOTE
English