Yamaha DSP-AX863SE Service Manual page 107

A B C
SCHEMATIC DIAGRAMS
DIGITAL 1/5
1
OUT
CB10
2
0 0
3
4.9 4.9
4
5
6
7
0 4.9
0 3.3
0
3.4
HDMI
0 0
1.8 0
3.3 0
TRANSMITTER
3.3 0
3.3 0
0
3.3
3.3 0
3.3 IC10 0
3.3 3.3
3.3 0
1.8 1.8
0
0
0
3.4
3.3 0
3.3 0
3.3 0
3.3 0
3.3
0
8
3.3 0
3.3
3.3
3.3 3.1
3.3 2.6
No replacement part available.
9
POINT A-1 XL10 (Pin 95 of IC17) POINT A-2 XL12 (Pin 83 of IC24)
10
D E F
HDMI
DVR (U, C, R, T, K, A, B, G, E, F, L models)
VCR (J model)
CB11
0 0 0 0
0 0
0 0
0.4 0 0.4 0.2 0
0 0.4 0.2 0
0 0.4 0.4 0
0.4 0.4 0
0
0.4
0.4
3.4
0.4
0.4
0
0.4
0.4
1.9
1.9
1.9
0.4
1.9
0
0
0
4.9 5.0 3.3
3.3 SWITCHER
0
0
IC11
8.7
0 9.0
5.0
5.0
0
3.4
0
0
0
1.8
0
0
0
0
0
0
SELECTOR
0
3.4
0
0
1.8
1.8
0
3.3
3.0
3.3
3.3
0
4.9
IC12
3.3
0
3.3
0
0
1.8
IC14
BUFFER
IC11: NJM2867F3-05
IC12: TC74VHC157FT
Low dropout voltage regulator Quad 2-channel multiplexer
SELECT 1 16 Vcc
V IN 5 4 V OUT 1A 2 A S G 15 ST
1B 3 B A 14 4A
Control 1 Thermal
1Y 4 Y B 13 4B
Protection 2A 5 12 4Y
A Y
Bandgap
2B 6 11 3A
B A
Reference
2Y 7 Y Y B 10 3B
GND 8 9 3Y
GND
2
G H
DTV/CBL (U, C, R, T, K, A, B, G, E, F, L models)
DVD
DVR (J model)
CB13
CB12
0 0 0 0
0 0
0 3.4 0
0 0.2 0.2 0 3.4 0 0
0 0 0
0
0 0.2 0.2 0 3.4 3.4 0
0 0
0 0 0
0 0 0 3.4 3.4 0
0.2 0.2
0 0.2 0.2 0 0 3.4 3.4 0
0
0.2
0.2
1.9
0
3.3
IC16 0
1.9
0
0
0
1.9
3.4
3.4
0
HDMI
3.4
3.4
3.4
3.4
3.4
No replacement part available.
0
0
3.4
3.4
3.4
0
0
HDMI DUAL RECEIVER
3.3
3.3
3.3
3.2
1.8
IC17 1.8
0
0
3.3
3.1
2.6
3.3
0
A-1 1.3
1.2
1.3
1.3
1.8
0
1.3
1.4
1.3
1.4
No replacement part available. 3.4
1.7
0
3.3
3.3
3.3 3.3
IC24: MN103SFD7G
Microprocessor
IC14: TC7SH04FU-TE85L
Inverter
32 bit
NC 1 5 VCC Built-in ROM
Microprocessor
A Y
IN A 2
L H
Extended
computing
GND 3 4 OUT Y H L Built-in RAM
element
Other
Serial I/O Interrupt DMA Clock
peripheral
Timer
I/F port equipment control Controller &
System control
WDT
I J K
DSP-AX863 RX-V863/HTR-6180 RX-V863
0 0 0 0
0 0
(J model)
3.3
3.3
1.8
3.3
3.3
3.3 CEC
3.3
0 3.3
3.3
MICROPROCESSOR
3.3
0
3.3 3.3
3.3
0
3.3
0 3.3
0
3.3
3.3
3.3
1.8
3.3
0 3.3
3.3 A-2
3.3
IC24
0
3.3
1.7
3.3
1.6
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3 3.3
3.3 3.3
3.3
3.3
3.3
3.3
3.5
(Writing port)
CB14
3.3 3.3
3.3
4.4 3.3 4.4
3.3 4.9
3.3 4.8
3.3
3.3 3.3
0 0
3.3 0
1.9 3.3
1.9 IC19
4.9
1.8 1.8 4.9
0 4.9
0 4.9
1.8 0
1.8
0
to DIGITAL 5/5
Bus
Controller
# 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.
L M N
RX-V863/HTR-6180/DSP-AX863SE/DSP-AX863
IC10: SiI9134CTU
HDMI transmitter
DSP-AX863SE RX-V863/HTR-6180 RX-V863
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]
IC13: SN74LVC245APWR
Octal bus transceivers with 3-state outputs
DIR 1 20 Vcc
A1 2 19 OE
A2 3 18 B1
A3 4 17 B2
A4 5 16 B3
A5 6 15 B4
A6 7 14 B5
A7 8 13 B6
A8 9 12 B7
GND 10 11 B8
1.8
3.3
3.3
3.3
3.3
3.3
3.3 IC16: SiI9185ACTU
3.3
HDMI switch
0
EDID Block
R0X0+/- Config. EDID
I 2 C Switch
R0X1+/- Logic RAM
R0X2+/-
R0XC+/-
Configuration Block Transmitter
Block
3.3
3.3 R1X0+/-
TX0+/-
R1X1+/-
3.3
R1X2+/- TX1+/-
3.3 R1XC+/- Transmit TX2+/-
3.3 Drivers
3.3
R2X0+/-
PLL TXC+/-
3.3 R2X1+/-
R2X2+/-
R2XC+/- 5V Switch HPD
Switch CEC I/F
Receiver Block
3.3
3.3
3.3
IC17: SiI9135CTU
HDMI receiver
INT XTAL
3.3 RESET#
Registers & HDCP
CSDA Configuration Keys
I 2 C MCLK
3.3 CSCL Logic ROM MCLKOUT
Gen
4.2 DSDA0
I 2 C
3.3 DSCL0
4.2 SPDIF
3.3 HDCP DSD
Rx0± Audio
HDMI1.3 Decryption SD[3-0]
Rx1± Decode
TMDS Engine SCK
Rx2± Logic
Core 0 WS
RxC±
MUTE OUT
Digital
MUX
Rx0±
Q[36:0]
Rx1± HDMI1.3 RGB to YCbCr
VSYNC
Rx2± TMDS Color Space
HSYNC
RxC± Core 1 Converter/
XOR ODCK
Mask 4:2:2 to 4:4:4
DE
Converter
DSDA1 SCDT
2 I C (12-bit Accurate)
DSCL1 EVNODD
to DIGITAL 5/5
IC19: R1172H181B-T1-F
Voltage regulator
V DD 4 5 V OUT
Vref
to DIGITAL 2/5 Current Limit
CE 1 2 GND
Pin No. Symbol Description
1 CE Chip Enable Pin
2 GND Ground Pin
3 NC No Connection
4 V DD Input Pin
5 V OUT Output Pin of Voltage Regulator
IC20: R1232D181A-TR-F
to DIGITAL 5/5 DC-DC converter
V
DD AGND
3 7
V
IN 2
Current Limit
Slope Compensation 5 V
OUT
to DIGITAL 3/5
L 8 Phase Compensation
x
Q R
S Vref
Output Control PWM Comparator
Error Amplifier
4 CE
Soft Start
Oscillator "H" Active
UVLO
TEST CKT
Chip Enable
1 6
"L" Fixed
PGND TEST
3.3 3.4
4.2 4.9
3.3 IC21: R1172H331D-T1-F
Voltage regulator
V V
DD 4 5 OUT
Vref
Current Limit
CE 1 2 GND
Pin No. Symbol Description
1 CE Chip Enable Pin
2 GND Ground Pin
3 NC No Connection
4 V Input Pin
DD
5 V OUT Output Pin of Voltage Regulator
107