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Yamaha RX-V1800 Service Manual page 131

Av receiver/av amplifier
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A
B
C
D-VIDEO 1/5
1
CB101
2
3
0
0
5.0
5.0
4
RB501V
5
8.7
0
6
0
3.3
0
3.3
3.4
0
HDMI
1.8
0
0.2
0
0.2
0
TRANSMITTER
0.2
0
0.2
0
0.2
0
0.2
IC102
0
0.2
3.4
0.2
0
1.8
1.8
0
0
0
3.4
2.2
0
2.2
0
2.2
0
2.2
0
0.3
0
0.3
0
0.3
0
7
0.3
0
0.3
0
No replacement part available.
8
IC103, 104: CXB1442AR-T4
Cable equalizer with 2-system switching function
9
n= 0, 1, 2
Input switching
Termination
circuit
resistor
ADTnP
IC105: SN74LVC245APWR
Quantizer
ADTnN
Output buffer
Octal bus transceivers with 3-state outputs
Equalizer
YDTnP
YDTnN
Output
DIR
1
Termination
BDTnP
Detector
BDTnN
A1
2
EQ outputs
A2
3
EQ inputs
Input switching
circuit
A3
4
ACKP
ACKN
Quantizer
Output buffer
A4
5
10
Equalizer
YCKP
YCKN
A5
6
Output
Termination
A6
7
BCKP
Detector
BCKN
Clock
Output Current
Control Circuit
A7
8
Detector
REXT
A8
9
SEL
GND
10
Control Logic
CMOS inputs
CE
D
E
F
CB103
CB104
0
0
0
0
0
3.3
3.3
0
0
0
0
0
3.3
3.3
0
0
0
0
0
3.3
3.3
0
0
0
0
0
3.3
3.3
EQUALIZER
0
3.3
3.3
3.3
0
3.3
0
3.3
0
0
IC103
0
3.3
0
3.3
0
0
0
3.3
0
3.3
3.3
3.3
1.2
3.3
IC106
9.0
5.0
0
3.3
3.3
HDMI
0
0
1.8
DUAL RECEIVER
0
0
0
IC101
0
0
0
0
3.3
0
0
1.8
1.8
0
1.7
1.6
3.3
3.3
A-1
0
0
3.3
3.3
0
3.3
IC108
0
0
1.8
0.2
3.3
1.7
1.7
1.7
1.7
1.7
1.7
0
CB102
Page 137
B2
to FL (2)_CB953
IC114: TC7WZ02FK
2 input nor gate
1A
1
1B
2
2Y
3
GND
4
20
Vcc
19
OE
IC106: NJM2867F3-05
18
B1
Low dropout voltage regulator
17
B2
V
V
IN
5
4
OUT
IC107: TC7WZ04FK
16
B3
Triple inverter
Control
1
Thermal
15
B4
Protection
Bandgap
14
B5
Reference
1A
1
13
B6
3Y
2
12
B7
2A
3
GND
4
11
B8
GND
2
G
H
CB105
CB106
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
0
0
0
0
0
0
0
0
0
EQUALIZER
0
3.3
3.3
3.3
0
0
0
0
0
0
IC104
0
0
0
0
0
0
0
0
0
0
3.3
3.3
0
0
No replacement part available.
0
0
1.3
4.9
3.3
0
0
0.9
4.9
3.7
2.9
1.8
1.8
0
0
0
0
IC116
5.0
3.3
0
0
0
1.4
0
1.4
1.3
1.3
1.8
0
1.4
1.4
0.2
0.2
3.3
0
0
1.3
1.4
0.2
to D-VIDEO 4/5
8 Vcc
7 1Y
A
B
Y
IC109: SN74CBT3257CPWR
L
L
H
6 2B
L
H
L
4-bit 1-of-2 fet multiplexer/demultiplexer
H
L
L
5 2A
H
H
L
1A
4
SW
2
1B1
SW
3
1B2
2A
7
SW
5
2B1
SW
6
2B2
IC108: TC74VHC157FT
3A
9
SW
11
3B1
Quad 2-channel multiplexer
SW
10
3B2
4A
12
SW
14
4B1
SELECT 1
16
Vcc
1A 2
A S G
15
ST
8
V
SW
13
4B2
CC
S
1
16
V
CC
1B 3
B A
14
4A
1B1
2
15
OE
7
1Y
1Y 4
13
4B
Y B
1B2
3
14
4B1
1A
4
13
4B2
2A 5
A Y
12
4Y
6
3A
2B1
5
12
4A
2B 6
11
3A
1
B A
S
2B2
6
11
3B1
2Y 7
Y Y B
10
3B
5
2Y
2A
7
10
3B2
GND 8
9
3Y
OE
15
GND
8
9
3A
I
J
K
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.9
4.0
0
1.3
1.3
4.0
0
0
0
0
0
0
5.0
5.0
0.2
0
4.0
1.3
4.9
4.0
0
4.9
0.9
0
0.9
1.3
0
1.3
3.3
0
0
3.3
0
3.3
3.3
0.1
0
0
0
IC114
0
5.0
3.3
4.9
0
0.9
0
5.0
3.3
5.0
0
5.0
5.0
0
0
IC110
3.3
0
5.0
5.0
1.3
5.0
4.9
0.9
0
1.3
3.7
0
5.0
4.9
0
0
5.0
4.9
0
IC111
2.9
0
0
POINT A-1 XL101 (Pin 95 of IC101)
IC115: SN74LV32APWR
IC116: TC7SET08FU
Quadruple 2-input positive-OR gates
2 input AND gate
IN B
1
5
VCC
A
B
Y
1A
1
14
Vcc
IN A
2
L
L
L
1B
2
13
4B
L
H
L
3
4
H
L
L
GND
OUT Y
1Y
3
12
4A
H
H
H
2A
4
11
4Y
2B
5
10
3B
IC112:
SN74CBT3257CPWR
2Y
6
9
3A
4-bit 1-of-2 fet multiplexer/demultiplexer
GND
7
8
3Y
1A
4
SW
2
1B1
SW
3
1B2
IC110, 111: M24C02-WDW6TP
2A
7
SW
5
2B1
2
2 K-bit serial I
C bus EEPROM
SW
6
2B2
V CC
3A
9
SW
11
3B1
SW
10
3B2
3
4A
12
SW
14
4B1
E0-E2
SDA
SW
13
4B2
S
1
SCL
M24Cxx
1B1
2
1B2
3
WC
1A
4
1
8
V CC
2B1
5
E0
1
S
2B2
6
E1
2
7
WC
2A
7
E2
3
6
SCL
V SS
OE
15
GND
8
V SS
4
5
SDA
L
M
N
RX-V1800/HTR-6190/DSP-AX1800
IC113: SN74CBT3253CPWR
Dual 1-of-4 fet multiplexer/demultiplexer
1A
7
6
1B1
5
1B2
4
1B3
3
1B4
2B1
2A
9
10
11
2B2
12
2B3
13
2B4
S0
14
1OE
1
16
V
CC
S1
2OE
2
15
S1
2
1B4
3
14
S0
1B3
4
13
2B4
1OE
1
1B2
5
12
2B3
1B1
6
11
2B2
1A
7
10
2B1
2OE
15
GND
2A
8
9
IC101: SiI9135CTU
HDMI receiver
INT
XTAL
RESET#
Registers &
HDCP
CSDA
2
Configuration
Keys
I
C
MCLK
CSCL
Logic
ROM
MCLKOUT
Gen
DSDA0
I
2
C
DSCL0
SPDIF
HDCP
DSD
Rx0±
Audio
HDMI1.3
SD[3-0]
Rx1±
Decryption
Decode
0.5
TMDS
Engine
SCK
Rx2±
Logic
Core 0
RxC±
WS
0.5
MUTE OUT
Digital
0
MUX
Rx0±
Q[36:0]
HDMI1.3
RGB to YCbCr
Rx1±
VSYNC
Rx2±
TMDS
Color Space
HSYNC
Core 1
Converter/
RxC±
XOR
ODCK
4:2:2 to 4:4:4
Mask
DE
Converter
SCDT
DSDA1
(12-bit Accurate)
I
2
C
DSCL1
EVNODD
5.0
0
0.1
0
0.5
5.0
0.1
0
0
0
0.1
0
0
0
0
5.0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
IC115
to D-VIDEO 5/5
to D-VIDEO 5/5
to D-VIDEO 3/5
Not applied to this model.
to D-VIDEO 4/5
to D-VIDEO 5/5
IC102: SiI9134CTU
HDMI transmitter
INT HPD
RESET#
CSDA
CI2CA
CSCL
E-DDC
DSCL
Slave
Registers
Master
DSDA
VSYNC
and
Video
HDCP
Configuration
HDCP Keys
HSYNC
Data
Encryption
IDCK
Logic
EEPROM
Capture
Engine
DE
Logic/DE
EXT_SWING
D[35:0]
Generator
YCbCr to RGB
Tx0
Color Space
XOR
HDMI 1.3
Tx1
S/PDIF
Converter/
Mask
MCLK
TMDS
Tx2
4:2:2 to 4:4:4
Core
TxC
WS
Audio
Converter
SCK
Capture
SD[3:0]
Logic
DL[3:0]
DR[3:0]
# 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.
16
V
CC
15
OE
14
4B1
13
4B2
12
4A
11
3B1
10
3B2
9
3A
131

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