
MC
Head amplifier
MM EQ
Amplifier
Input selector
ATT. unit 1 L
RY_MM/MC
A
+
–
+
–
B
A
+
–
+
–
B
L CH
R CH
FLOATING POWER SUPPLY
FLOATING BALANCE
VOLUME
BALANCE
UNBALANCE
POWER TRANSFORMER
Buffer amplifier/
UNBALANCE
BALANCE
CONVERTER
INDEPENDENT REGULATED POWER SUPPLY (for AUDIO)
(P.C.B. input1)
VOLUME (L ch)
(REC)
POWER
SPEAKER OUT
SPEAKER OUT
FLAT
SP A L ch
SP B L ch
SP A R ch
SP B R ch
ATT. unit 2 L
ATT. unit 3 L
ATT. unit 1 R
ATT. unit 2 R
ATT. unit 3 R
LOW IMPEDANCE DRIVE
HEADPHONE AMPLIFIER
TRIGGER
IN
IN
Buffer amplifier
Floating balance
Floating balance
TONE CONTROL
Hi: 18.6dB
Low and Unbalance: 12.5dB
REC OUT Buffer
Tone control
Tone control
POWER relay
RY_PWR
D307
R CH
R CH
D302
L CH
L CH
±PB
±B
D6
D305
+12D
-12D
+PB
- PB
VOLUME (R ch)
LVOL±18V
RVOL±18V
VOL1±18V
VOL2±18V
LINE1±20V
LINE2±20V
LINE1±20V
LINE2±20V
LINE2±20V
RY_TCBYP
LINE1±20V
RY_SEL_BAL
LINE1±20V
±PB
±PB
OUT
MC±18V
MM±20V
MC±18V
MM±20V
LINE2±20V
±PB
D11
+5M
+5S
+5M
+5M
+5S
Standby power
RY_SPA
RY_SPB
RY_SPA
RY_SPB
N_HP_DET
MAIN_MT
MAIN_MT
N_REC_MT
N_MT_PRE_
PRV
PRI_R
PRI_L
HPPRDR
HPPRDL
PRTHR
PRTHL
PRDR
PRDL
PRI_R
PRI_L
HPPRDR
HPPRDL
PRTHR
PRTHL
PRDR
PRDL
PSVA1
PSVA2
PSVA1
PSVA2
AMP GAIN:-12.2dB
AMP GAIN: 0.2dB
METER DRIVER
METER
±12D
METER_MT
PK/N_VU
RYB1_PLTY
Phase change
(normal/inv.)
Remore
control sensor
+5M
RY_BAL_
RY_CD_
RY_TU_
RY_LINE1_
RY_LINE2_
RY_MDIR_
RY_PHONO
IC504
+5M
+5S
STBY_CNT
AMP GAIN: 1.58dB
AMP GAIN: 1.58dB
AMP GAIN: 15.9dB
RY_BAL_GAIN
AUTO POWER STANDBY
ON
OFF
ATTENUATOR
BYPASS
ATT.
PHASE
NORMAL
INV.
D335
D301
D334
METER UNIT
reg
reg
METER_MT
METER_ATT
Sub-transformer
Relay
Motor Volume
METER
MC Amplifier
MM EQ Amplifier
After Vol. Amplifier
(FUNC1)
Input Amplifier
Microprocessor/
Logic etc.
Microprocessor
Control
Protection
CD L/R
TUNER L/R
LINE1 L/R
LINE2 L/R
LINE2 OUT
PHONO
PRE OUT
MAIN IN
BAL
L/R
L/R
L/R
Rear panel
PHONES
DISCRETE AMPLIFIER
SYSTEM CONNECTOR
REMOTE
AC IN
VOLUME
INPUT
Selector
BALANCE
BASS
TREBLE
Front panel
PHONES
TRIM
SPEAKERS
OFF/A/B/A+B
METER
OFF/VU/PEAK
PHONO
MM/MC
MUTE
+
+
–
–
• See page 75, 76
→
SCHEMATIC DIAGRAM
INPUT
• See page 82, 83
→
SCHEMATIC DIAGRAM
FRONT
• See page 82, 83
→
SCHEMATIC DIAGRAM
FRONT
• See page 77–80
→
SCHEMATIC DIAGRAM
FUNCTION
• See page 81
→
SCHEMATIC DIAGRAM
MAIN
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
50
A-S2100
AUDIO Section Block Diagram
■
BLOCK DIAGRAMS
Summary of Contents for A-S2100
Page 3: ... FRONT PANELS U K A B G L V S J models T model 3 A S2100 A S2100 ...
Page 4: ... REAR PANELS U model K model T model 4 A S2100 A S2100 ...
Page 5: ...A model B G models L model 5 A S2100 A S2100 ...
Page 6: ...V model J model S model 6 A S2100 A S2100 ...
Page 113: ...MEMO MEMO A S2100 114 ...
Page 114: ...MEMO 115 A S2100 A S2100 ...
Page 115: ...A S2100 ...