Yamaha RX-V365 Service Manual page 83

A B C
HDMI
1
OUT
CB901
2
3
4
5
6
7
8
9
10
D E F
HDMI
CB903
0
0
0 0
0
0
0 0
0 0
0 1.0
IC901
IC902
5.3
0
5.3
0
0
0
0
0.8
0
IC901: PCA9517DP IC903: CXB1442AR-T4
2
Level translating I C-bus repeater Cable equalizer with 2-system switching function
V V
CCA CCB
1 8
Input switching
Termination
circuit
SDAA 3 6 SDAB
resistor
ADTnP
ADTnN
SCLA 2 7 SCLB
V
CCB
pull-up BDTnP
resistor
BDTnN
EN 5
4
EQ inputs
GND
Input switching
IC902: NJM2867F3-05
circuit
ACKP
Low dropout voltage regulator
ACKN
V 5 4 V
IN OUT
Control
1
Thermal
Protection BCKP
Bandgap BCKN
Reference
SEL
CMOS inputs Control Logic
GND 2
CE
G H I
DVD DTV/CBL
CB903
1.4 0
0 0
0 0 0 0
0
0 0 0
0 0 0 0
0 0 0
0
0
0
0
0
0
0
0 0
3.3 3.3
0 0
0 0
0 0
0 IC903 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
3Y 2 7 1Y
Quantizer
Output buffer
Equalizer YDTnP
2A 3 6 3A
YDTnN
Output
GND 2Y
Termination 4 5
Detector
EQ outputs
Quantizer
Output buffer 36 35 34 33 32 31 30 29 28 27 26 25
Equalizer YCKP Vcc 37 24 YCKN
Vcc 38 23 YCKP
YCKN
ADT2N 39 22 GND
IC906: SN74LVC1G08DCKR
ADT2P 40 21 YDT0N
Output
GND 41 20 YDT0P
Termination Single 2-input positive-AND gate
Detector
Vcc 42 19 Vcc
Vcc 43 18 Vcc
Clock Output Current
GND 44 17 YDT1N
Detector Control Circuit 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
J K
1.2 0
0 0
0 0
0 0
0 0
0 0
0
0
0
0
0
0
3.3
0
1.4
0
1.2
0
1.0
0
0
0
0 0
0 0
0 0
IC907
3.3 0
3.3
IC908
0 0
3.3 0
0
0
IC908
0
3.3
3.3
0
0 0
5.3 3.3
3.3
IC905
0
0
IC904 5.3 3.3 3.3
0
0
0
IC907: SN74CB3Q3257PWR
IC905: NJM2885DL1-33
Low voltage high-bandwidth bus switch
Low dropout voltage regulator
V V 1A 4 SW
IN 1 3 OUT
Thermal
2A 7 SW
Protection
Bandgap
Reference
3A 9 SW
4A 12 SW
GND 2
S 1
OE 15
A 1 5 V
CC
B 2
GND 3 4 Y
L M N
RX-V365/HTR-6230
CB904
Page 80 I4
to OPERATION (4)_W182
CB905
Page 80 A8
to OPERATION (2)_W2154
IC908: SN74LVC2G17DCKR
Dual schmitt-trigger buffer
2 1B1
1A 1 6 1Y
SW 3 1B2
5 2B1 GND 2 5 VCC
SW 6 2B2
2A 3 4 2Y
11 3B1
SW 10 3B2
14 4B1
SW 13 4B2
S 1 16 V
CC
1B1 2 15 OE
1B2 3 14 4B1
1A 4 13 4B2
2B1 5 12 4A
2B2 6 11 3B1
2A 7 10 3B2
GND 8 9 3A
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked
and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
83