Yamaha rx-v561 Service Manual page 73

A B C
HDMI
1
OUT
CB901
2
3
4
5
6
7
8
IC902: NJM2867F3-05
Low dropout voltage regulator
V 5
IN
Control 1
9
GND 2
10
D E F
HDMI
CB902
0 0
0 0
0
0
0 0
0 0
0 0
IC902
0
0 5.3
IC901
0
0
0
0.8
0
IC903: CXB1442AR-T4
Cable equalizer with 2-system switching function
4 V
OUT
Input switching
Termination
circuit
resistor
Thermal
ADTnP
Protection
ADTnN Quantizer
Bandgap
Reference
Equalizer
BDTnP
BDTnN
EQ inputs
Input switching
circuit
ACKP
Quantizer
ACKN
Equalizer
BCKP
BCKN
Clock Output Current
Detector Control Circuit
SEL
CMOS inputs Control Logic
CE
G H
DVD DTV/CBL
CB903
3.3 0
1.5 0
0 0 0
0
0 0 0 0
0 0 0 0
0 0 0 0
0.5
0.6
0
0.6
0
0
0 0
3.3 IN2/OUT1 3.3
0 0
EQUALIZER
0 0
0 0
IC903
0 0
0 0
0 0
0 0
0 0
3.3 3.3
0 0
IC904: SN74LVC3G04DCTR
Triple inverter gate
n= 0, 1, 2
1A V
1 8
CC
Output buffer
YDTnP
3Y 2 7 1Y
YDTnN
Output
Termination
Detector
2A 3A
3 6
EQ outputs
GND 4 5 2Y
36 35 34 33 32 31 30 29 28 27 26 25
Output buffer
Vcc 24 YCKN
37
YCKP
Vcc 38 23 YCKP
YCKN
ADT2N 39 22 GND
ADT2P 40 21 YDT0N
Output
GND 41 20 YDT0P
Termination
Detector Vcc 42 19 Vcc
Vcc 43 18 Vcc
GND 44 YDT1N
17
REXT
BCKN 45 16 YDT1P
BCKP 46 15 GND
Vcc 47 14 YDT2N
Vcc 48 13 YDT2P
1 2 3 4 5 6 7 8 9 10 11 12
I J K
0.3 0
0 0
0 0
0 0
0 0
0 0
0
0
0
0
0
0
3.3
0
3.3 0
0.3
0.6
0.5
3.3
1.4 0.3
0.1 0
1.4 0
0 0
IC907
5 3
3.3 0.3
3.3
IC908
2 6 6 1
3.3 0 0 0
4 3
0 0
IC908
0
3.3
3.3
0.2
0
0
5.3 3.3
5.3
0 4
3.3
IC905
0
7 1
3.3
0
IC904 5.3 3.3 0
0 0
0
0
0
IC907: SN74CB3Q3257PWR
IC905: NJM2885DL1-33
Low boltage high-bandwidth bus switch Low dropout voltage regulator
V IN
1A 4 SW 2 1B1
SW 3 1B2
2A 7 SW 5 2B1
SW 6 2B2
3A 9 SW 11 3B1
GND
SW 10 3B2
4A 12 SW 14 4B1
13
SW 4B2
1
S S 1 16 V
CC
1B1 2 15 OE
1B2 3 14 4B1
OE 15
1A 4 13 4B2
4A
2B1 5 12
2B2 6 11 3B1
2A 7 10 3B2
GND 8 9 3A
L M N
RX-V561/HTR-6050
IC911: TC7S86FU
Exclusive OR gate
IN B 1
5 V
CC
IN A A B Y
2
H H L
L H H
OUT Y
GND 3 4 H L H
L L L
IC910: TC7S04FU
Inverter
NC 1 5 V
CC
IN A 2
A Y
L H
GND 3 4 OUT Y
H L
IC909: TC7S32FU
2-input OR gate
IN B 1 5 V
CC
A B Y
IN A 2
L L L
L H H
GND 3 4 OUT Y H L H
H H H
IC908: SN74LVC2G17DCKR
Dual schmitt-trigger buffer
1A 1 6 1Y
GND 2 5 VCC
2A 3 4 2Y
IC906: SN74LVC1G08DCKR
Single 2-input positive-AND gate
A 1 5 V
CC
B 2
GND 3 4 Y
CB905
Page 68 A9
to OPERATION (2)_W2154
5.3 5.3
CB906
1 0
2 4
0 4 Page 71 I3
IC911
0 0
IC910
2
1 0 to VIDEO (3)_W3401
4.9
0 0
IC909
2 0
1 3 V OUT
Thermal
Protection
Bandgap
Reference
2
# All voltages are measured with a 10MΩ/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.
73