Yamaha RX-V1800 Service Manual page 131

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