Yamaha HTY-7040, Service Manual

Page: 87 / 129

IC503
IC507
IC505 IC508
W501
CB501
IC501
IC502
CB502
CB503
CB504
CB505
IC506 IC509
CB507
CB506
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
YSP-4000/YSP-40D/HTY-7040
87
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
AMP 1/2
D-2
3.3
12.1 5.0
0 0
3.3 12.1
0
3.3
3.3
3.3
1.6
1.5
0.8
1.7
1.7
0
0
0
3.3
3.3
1.6
1.6
0.8
1.7
1.7
1.6
3.3
1.7
6.0
5.1
5.1
5.9 10.1
3.3
11.9 5.9 2.9 0 10.1 7.0 7.0
12.1
12.1
5.0
5.0
0
2.9
5.0
6.9
4.9
5.1
5.0
5.1
5.0
5.1
5.0
5.1
5.0
5.1
4.9 5.1
5.0
5.1
5.0
5.1
7.0
5.0
11.6
4.7
0 4.6 1.8
5.0
0.7
0
4.2
5.0 12.1 2.4
2.5 0
12.1
0.7
0
0 0 0 0
12.1
5.0 0
5.0 5.0 0 5.0
0
0
0
0
5.0
12.1
0.7
0 0 0 0 0
0.7
12.1
3.3
0
2.5
5.0
0
3.3
12.1
0
12.1
5.0
0
12.1
5.0
2.4
2.5 0
12.1
0.7
0.2
0
0 0 0 0
12.1
5.0 0
5.0 5.0 0 5.0
0
0
0.1
0
5.0
12.1
0.7
0 0 0 0 0
0.7
12.1
3.3
0
0
5.9 10.1
3.3
11.9 5.9 2.9 0 10.1 7.0
12.1
12.1
5.0
5.0
0
2.9
5.0
6.9
7.0
7.0 5.0
11.6
4.7
0 4.6 1.8
5.0
0.7
0
4.2
0
3.3
3.3
0
0
5.1
3.3
0
5.1
5.0
5.1
5.0
0.2
0
2.4 0
4.9 0.2 0 0.2 0 0.2 0 5.0 0 0.2 4.9 0 2.5
3.3
4.9
0
0
5.0
4.9
4.9 3.3 1.7
0
3.3 2.4 3.3 0.2
3.3
3.3
1.6 1.6 0.8
0 0
1.7 1.7 4.9 2.4 2.3 2.1
0
0.2
0
0.2
0
0.2
0
0.2
0
0
0
0.2
4.9
0
2.4
2.4
5.0
5.0
5.0
0
3.3
0
0
0
0.2
0
0.2
0
0.2
0
0.2
4.9
0
2.4
0
4.8
5.0
0
5.0
0
0
0.2
0.2
5.0
0
0
0.2
0
2.4 0
4.9 0.2 0 0.2 0 0.2 0 5.0 0 0.2 4.9 0
2.4
3.3 3.3
0
0
5.0
4.9
4.9 3.3 1.7
0
3.3 2.4 3.3 0.2
3.3
3.3
1.6 1.6 0.8
0 0
1.7 1.7 4.9 2.1 2.0
0
0.2
0
0.2
0
0.2
0
0.2
0
0
0
0.2
4.9
0
2.4
2.4
5.0
5.0
5.0
0
3.3
0
0
0
0.2
0
0.2
0
0.2
0
0.2
4.9
0
2.4
0
4.8
5.0
0
5.0
0
0
0.2
0.2
5.0
0
0
0
0
3.3
3.3
0
0
CENTER
WOOFER L
SURROUND
FRONT
CENTER
SURROUND
FRONT
IC501 : TC74LCX541FT
Low voltage octal bus buffer with 5-V tolerant inputs and outputs
A1
A2
A3
A4
A5
A6
A7
A8
1
2
3
4
5
6
GND
OE1
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Vcc
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1
2
3
NC
IN A
GND 4
5
OUT Y
VCC
A
L
H
Y
H
L
IC502 : TC7SHU04FU
Inverter
IC505, 508 : L6732TR
Adjustable step-down controller with synchronous rectification
+
+
–
–
Vcc=4.5V-14V
Vin=1.8V-14V
VOUT
14
VCCDR
LGATE
PGND
GND
BOOT
HGATE
PHASE
OCH
OSC
PGOOD
1
2
3
13
12
11
10
9
6
7
8
SYNCH
FB
E/A
PWM
0.6V
COMP
SS
Monitor
Protection and Ref
EAREF
OCL
4 5
15 16
LDO
+
–
IC506, 509 : YDA138-EZE-2
Digital audio power amplifier
IC503, 507 : YDA141-SZ
Sound projector
POINT D-2 XL501 (Pin 47 of IC503)
/IRQ#1
Chip#14
D4-SPJ
D4-SPJ
Chip#0 XIN
CLKC
CLKC
XIN
/IRQ#14
/IRQ#15
/IRQ#0-
High
SCK
SO
SI
/CS
/IRQO
/IRQI
SDO[3:0]
/IRQI
WCK2 BCKO
/IRQO
/IRQI
/CS
SCK
SO
SI
/TEST
PWMSW
DACENABLE[1:0]
TESTOCP
TESTOTP
MASKOCP
MASKOTW
DAT[15:0]
WCK2
LT[9:0]
FSHOP[1:0]
GAINA[1:0]
GAING[1:0]
ENABLE[7:0]
/OCPO[7:0]
/SPERR[7:0]
AMHOP
SPCHK
/UVLC
/CKDET
/OTP
/OTW
MASKUVLO
MASKCKDET
MASKOTP
EXT[0:1]
DEGLITCH
/TRIDET
CLKC
CLKC
WCK
MCK
BCK
DSI[3:0]
SCK
SO SI /CS
/IRQO Chip#15
D4_core
Speaker A~H
OUTPC
OUTMC
XIN XOUT
/DISABLE /ERROUT
O/Dout
/IC MOD[1:0]
MCK=24 576MHz
WCK fs=32/44 /48k*2
Fixed
SO is bus connected by /CS.
IRQ terminals are connected in
daisy chain, forming an OR circuit.
TI/DSP
SA_DSP
Beam & NoiseShaper
DIR
For DAC monitor
To be modified if there are many SDC latches
8ch D4
DAC & PDD Amp
CH_A~H
DAC-I,J
Microprocessor interface complies with EVE.
Quarts Crystal circuit
Microprocessor
Bus connected to
microprocessor
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
D/A Converter
and
Digital AMP.
8 ch output
D/A Converter
and
Digital AMP.
8 ch output
to DSP_CB8
P
age 84
L6
to POWER (1)_CB504
Page 90 K2
DRIVER
WOOFER L
DRIVER
WOOFER R