Yamaha DSR112 Service Manual page 113

H G
■ BLOCK DIAGRAM （ブロックダイアグラム）
IC801 1/2 IC801 2/2
+15A +15A
JK701
VR801
3
+
1 5 7
Diff BA
CANNON +
2
-
LEVEL
INPUT
-15A -15A
JK702
PHONE
MIC
SW801
LINE
LINE/MIC
SW
JK703
IC802 1/2 IC202 1/2
+15A +15A
THRU
2 1 SIG- 7 7 2 1 4
- INV - INV
5
-15A -15A
PCM1804DB
IC802 2/2 IC202 2/2
+15A +15A
25
6 7 SIG+ 8 8 6 7 24
- INV - INV
-15A -15A
4 4
+15A +15A
6 6
-15A -15A
10 10
+5LD +5LD
/DSP-RES-EVB
SW803
15 15
HPF
SW
SW804
D-CONTOUR 18 18
SW
SW805
FRONT LED DISABLE 20 20
SW
LD802
Q802
LIMIT
LED
LD805
16 16
HPF
LED
LD804
D-CONTOUR 19 19
LED
12 12
6 6
LD803
Q803
PROTECTION 8 8
LED
LD801
Q801
9 9
POWER
LED
LD806
PEAK
LED
17
1-4 1-4
MODEL-ID
RESISTORS
+3.3D
IC105
RESET-IC
IN1 or IN2 or IN3
S-80130ANMC
* IN1 : DSR215
IN2 : DSR115
IN3 : DSR112
2001063511-1
28CA1-
DSP
F E
DSR112/DSR115/DSR215
X102
24.576MHz (48k x 512)
+3.3D
3wires
CS0
I2C-BUS SLAVE CHIP ADDRESS(Write):68h
I2C-BUS SLAVE CHIP ADDRESS(Read):69h
+5A +3.3D
CLOCK
LIN+
ADC SDI1(L)
LIN-
IC104
IC201
15 61
SDIN
DSP (with ADC/DAC)
RIN+
TAS3204PAG
ADC SDI1(R)
RIN-
/RST
IC103
+3.3D
/ADDA-RES
I2C-BUS
HPF-SW
40
CONTOUR-SW
43
FLED-DIS-SW
36
LIMIT-LED
35
HPF-LED
39
CONTOUR-LED IC101
42
16bit μCONTROLLER
R8C/2B
PROTECTION-LED
30
(R5F212BCSNFP)
128KB Flash ROM / 7.5KB RAM / 1KB*2 DATA-FLASH
POWER-LED
29
PEAK-LED
41
4wires
31-34
37,38
PWM Output PORT
6
/RESET
20.000MHz
X101
D C
1/2
IC302 1/2
2nd Order Butterworth
+15A -15A +15A
1 1
LPF
UB- 7 2
BAL
+5A +3.3D
-15A
CLOCK
IC303 2/2
AOUTL+ 23
DAC 22
AOUTL-
54 6 IC301
SDOUT AK4396VF
21
AOUTR+
DAC
20
IC302 2/2
AOUTR-
2nd Order Butterworth
+15A -15A +15A
/PDN SMUTE
8
7 17
LPF
UB- 1 18
BAL
-15A
IC303 1/2
IC106
DC-DET-HF DC-DET-HF 13 13
55
DC-DET-LF DC-DET-LF 14 14
56
/D-MUTE
12
AMP-ENA 15 15
AMP-ENA
58
/A-MUTE /A-MUTE 12 12
54
60
T-SENSE T-SENSE 4 4
AD PORT
/AMP-ERR /AMP-ERR 11 11
53
MODE CPU-MODE 15 15
3
CONNECTOR
/DIAG /DIAG 18 18
14
CN907 (5P)
POFF-REQ POFF-REQ 5 5
49
45
/PWR-OFF /PWR-OFF 6 6
IRQ PORT
CN905 (6P)
/232C-CONN /232C-CONN 14 14
232C-I/F
28
13,12
UART(TXD/RXD) UART(TXD/RXD) 12,13
CONNECTOR
UART0,1
16
FRONT-LED FRONT-LED 10 10
Q101, Q102
IC403
+15A REG +18A 3 3
+15A
IC404
-18A 1 1
-15A REG
-15A
BRG1 or
IC405 IC401
BRG2 or
+5A LDO +6A DC/DC
+5A
BRG3
IC402
+3.3D DC/DC
+3.3D
LED
B
+B
VDR
Q750, Q751
SIG-HF+ 5 5
P-AMP
MUTE
SIG-HF- 6 6
(HF)
-B
+18A
IC300 +B
Q703
VDR
THERMAL
Q704
SENSOR
SIG-LF+ 2 2
P-AMP
MUTE
SIG-LF- 3 3
(LF)
-B
8 8
Q713
Q715
Q705
Q706
Q709
Q711
DCDETH-CHK 11 11
DC DET.
14 14
DCDETL-CHK 7 7
15 15 DC DET.
Q707 Q710
Q708 Q712 +18A
+18A
16 16
I/F
MUTE Q319
13 13 Q717
DRIVER
Q716 5f(sw) CLOCK
Q723
Q701 Generator
Q702
Q704
12 12
Q722
DIAG
THERMAL SENSOR
5 5
Switching Controller
6 6
+B Power
D122,D123
-B Power
Resonance
D11,D118
Half Bridge
VDR Power
DC/DC
IC107
CONV.
3 3 +18A Power
( with )
IC108
Transformer
-18A Power
1 1
IC106
AMPS1
CN906 (2P)
CN1 (2P)
LD1
ACIN
FRONT LED
A
DSR112/DSR115/DSR215/DSR118W
1
TWEETER
2
WOOFER
WOOFER
(DSR215 only)
3
4
PFC
DIODE
BRIDGE
5
CN101 (4P)
POWER
SW
AC-INLET
3