Yamaha DSP-AX761, Service Manual

Page: 101 / 137

CB5
CB4
CB7
IC22
IC25
IC2
IC21
IC24
W1
IC18
IC17
CB1 CB2 CB3
IC1
IC14
IC8
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V661/HTR-6060/DSP-AX761
101
★ 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.
HDMI
B-1
POINT B-1 Pin 96 of IC14
5.0
5.0
3.3
5.0
3.3
3.3
3.3 3.2 0.3
6.3
6.3 6.3
0
5.0
5.0
1.0 1.0
0
0
0
0
3.2
3.3
0.1
3.3
3.3
2.7
0
4.5
4.9
0.3 3.3
3.2
0.1
0.2
0
0
0.1
0.1
0.1
0.1
0
0.1
1.8
0
0
0
0
0
3.3
1.8
4.5
1.8
0
0
3.3
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
1.8
0
0 0 0 0 0
1.8
0 0 0 0
3.3
0 0
1.8
0 0 0 0 0 0
3.3 0 0 0 3.3 0 0 0 0 0 3.3 0 0 0 0
3.3
3.3 3.3
0 3.3 3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
0
0
0
0
0
0
0 3.3 3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
0
0
0
0
0
0
0
0
3.3
3.3
0.1
1.8
0
0.1
0.1
0.1
0.1
0
0
0
3.3
0
0
1.8
1.8
0
1.7
1.6
3.3
3.3
0
4.9
0
3.3
1.8
0
0
0
3.3 0.1 0.1 0.1 0.1 1.8
0
0.1 0.1 0.1 0.1
0
1.8 3.3 0.1 0.1
0 0 0
1.8
0 0 0 0 0
3.3
0 0 0 0
1.8
0 0 0 0 0
0
1.8
3.3 3.3 3.3 0 3.3 3.3 3.3 0 3.3 3.3 3.3 0 3.3 3.3 3.3 3.3
0
0 3.3 3.3 3.3 0 3.3 3.3 3.3 0 3.3 3.3 3.3 0 3.3 3.3 3.3 3.3
0
1.8
0
4.9
0.9
0
4.5
3.3
3.3
0
3.3
4.5
1.8
0
0.1
0
1.8
0.1
0.1
0.1
3.3
0.1
0.1
0
0.1
0.1
0.1
3.3
0
0
0
0
3.9
0
0
3.9
0 0
0
0
0
0
0
0
0.1
4.5
0
0.1
5.0
3.9
3.9
4.9
0
0
0
4.5
0
0.9
4.9
0
0
0
0
0.9
5.0
5.0
0
0
5.0
0
0
0
0
0.6
3.3
3.3
5.0 0.2
0.2 3.3
6.4
6.4
5.0
0
6.3 1.8
1.8
6.3
3.3
6.3
6.3
0
0
3.3
0
0.1 0.1 3.3 0.1 3.3
0.1
0.1 0.1
0 0
0.1 3.3
0
3.3
0.1
0.1
0.1
0
0
0
0
0
0.1
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3
E0-E2 SDA
VCC
M24Cxx
WC
SCL
VSS SDA VSS
SCL
WC
VCC 1
2
3
4
8
7
6
5
E2
E1
E0
IC18 : M24C02-WMN6TP
2 K-bits serial I
2
C bus EEPROM
IC21 : NJM2391DL1-33
Low dropout voltage regulator
Reference
Voltage
Thermal Overload
Protection
Short Circuit
Current Limit
IN
OUT
GND
V OUT V IN
GND
1 3
2
IC24 : NJM2845DL1-18
Low dropout voltage regurator
Bandgap
Reference
Thermal
Protection
V
OUT
V
IN
Control
GND
1
4 5
2
IC8 : NJM2867F3-05
Low dropout voltage regulator
Bandgap
Reference
Thermal
Protection
IC2 : NJM2885DL1-05
Low dropout voltage regulator
V OUT V IN
GND
1 3
2
Bandgap
Reference
Thermal
Protection
IC17 : SN74CBT3253CPWR
Dual 1-of-4 fet multiplexer/demultiplexer
2B1
1B1
2A
1A
S0
S1
1OE
2OE
1B2
1B3
1B4
2B2
2B3
2B4
7
9
14
2
1
15
6
5
4
3
10
11
12
13
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1OE
S1
1B4
1B3
1B2
1B1
1A
GND
VCC
2OE
S0
2B4
2B3
2B2
2B1
2A
1 DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
OE
B1
B2
B3
B4
B5
B6
B7
B8
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC22 : SN74LVC245APWR
Octal bus transceivers with 3-state outputs
IC25 : TC74VHC157FT
Quad 2-channel multiplexer
SELECT 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
Vcc 16
ST 15
4A 14
4B 13
4Y 12
3A 11
3B 10
3Y 9
A S G
B A
Y B
A Y
B A
Y Y B
CSDA
DSDA
DSCL
INT
HPD
EXT_SWING
TXC+-
TX0+
-
TX1+
-
TX2+ -
XOR CSC
encr
ypted
data
control signals
audio data
4:4:4
4:2:2 to
Slave
I
2
C
Master
PanelLink
TMDS
Digital
Core
E-DDC
Capture /
DE Gen/
656
Logic
Block
Video Data
Audio Data
Capture
Logic
Block
Registers
Receiver Sense + Interrupt Logic
Logic Block
Configuration
CSCL
CI2CA
RESET#
IDCK
D[23:0]
VSYNC
HSYNC
DE
SPDIF
MCLK
SCK
WS
SD[3:0]
HDCP HDCP
Keys
EEPROM
Encryption
Engine
TX2+ TX2+
IC1 : SII9030CTU-7
HDMI transmitter
HDMI
HDMI DUAL RECEIVER
HDMI
TRANSMITTER
REGURATOR
SELECTOR
BUFFER
EEPROM
to DSP_CB89
P
age 95
K6
to DSP_CB47
P
age 93
F2
to MAIN (2)_W109
P
age 99
J8