Yamaha HTR-6295, Service Manual

Page: 129 / 163

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B C D E F G H I J K L M N
129
DIGITAL 7/7
RX-V2065/HTR-6295
★
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.
IC7 IC15
CB15 CB9
IC10
IC11
IC9
IC8
IC5
CB7
CB8
IC6
IC16
IC12
CB10
4.9
0
4.9
0
4.9
3.3
5.5
5.1
0
5.1
0
0
0
1.8
0.5
0.5
0.5
3.0
0.5
0.5
0.5
0.5
1.8
0
3.3
2.2
2.2
2.2
2.2
0.5
0.5
0.5
3.0
0.5
3.3
3.3
0
0
0
0
0
0
0
0
0
3.3
0
1.8
0
0
0
0
0
0
0
0
0
0
0
1.8 0.5 0.5 0.5 2.2 2.2 2.2 2.2 0.5 0.5 2.2
0
3.0
3.3
2.2 3.0 0.5 2.2 2.2 2.2 2.2 2.2 2.2 1.8
0
0.3 3.3 3.3 4.9 4.9
4.9 3.3
0 1.8 0 0 0
1.8
0 0 0 0 0
1.8
0 0 0 1.8
1.8
0
0
0
0
3.3
1.8
0.5
0.5
0.5
3.0
0.5
0.5
0.5
0.5
1.8
0
3.3
2.2
2.2
2.2
0.5
0.5
0.5
3.0
0.5
3.3
3.3
0
0
0
0
0
0
0
0
0
3.3
0
1.8
0
0
0
0
0
0
0
0
0
0
0
1.8 0.5 0.5 0.5 2.2 2.2 2.2 2.2 0.5 0.5 2.2
0
3.0
3.3
2.2 3.0 0.5 2.2 2.2 2.2 2.2 2.2 2.2 1.8
0
0.3 3.3 3.3 4.9 4.9
4.9 3.3
0 1.8 0 0 0
1.8
0 0 0 0 0
1.8
0 0 0 1.8
1.8
0
4.9
0
4.9
0
4.9
3.3
0
0
0
0
0
0
0
0
0
3.3
0
0
0
0
0
0
0
0
0
3.3
0
5.5
5.1 0
5.1
3.6
1.7
0 0
1.3
0 0 0
3.4 0 1.7 0 0 1.7 0 0
0
1.9
0
0.9 1.2 3.3
1.9 5.5 6.7
2.3
0
3.4
0
0.9
1.3
3.3
3.4 5.5 8.1
2.3
1.2
3.3
3.3
0 0
ANALOG IN
IC8, 9 : BD9323EFJ-E2
1 ch step down DC/DC converter
IBIAS
ERR FB
EN
BST
OUTPUT
VIN
SW
GND
OPEN
AUTOMATIC
STARTUP
COMP
SS
VREF VREG OSC
TSD
S
DRV
R
LOGIC
SLOPE
Soft Start
UVLO
VCC
5V
12V
8
6
PWM
OCP
LVS
LVS
7
1
5
4
3
2
IC7, 15 : SiI9134CTU
HDMI transmitter
XOR
Mask
DSCL
DSDA
EXT_SWING
Tx0
Tx1
Tx2
TxC
CSDA
RESET#
MCLK
S/PDIF
SCK
WS
DE
IDCK
VSYNC
HSYNC
SD[3:0]
DL[3:0]
DR[3:0]
D[35:0]
INT HPD
CSCL
Registers
and
Configuration
Logic
HDCP Keys
EEPROM
E-DDC
Master
CI2CA
Slave
Video
Data
Capture
Logic/DE
Generator
HDCP
Encryption
Engine
HDMI 1.3
TMDS
Core
Audio
Capture
Logic
YCbCr to RGB
Color Space
Converter/
4:2:2 to 4:4:4
Converter
V
OUT
V
IN
Control
GND
1
4 5
2
IC16 : NJM2867F3-05
Low dropout voltage regulator
Bandgap
Reference
Thermal
Protection
IC11 : TC74VHC157FT
Quad 2-channel multiplexer
SELECT 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
Vcc 16
ST 15
4A 14
4B 13
4Y 12
3A 11
3B 10
3Y 9
A S G
B A
Y B
A Y
B A
Y Y B
1 DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
OE
B1
B2
B3
B4
B5
B6
B7
B8
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC6 : SN74LVC245APWR
Octal bus transceivers with 3-state outputs
V
OU
T
V
IN
Control
GND
1
4 5
2
IC10 : NJM2867F3-05
Low dropout voltage regulator
Bandgap
Reference
Thermal
Protection
V DD
CE
Pin No.
1
2, 5
3
4
6
Symbol
VOUT
GND
CE
NC
VDD
Description
Output Pin of Voltage Regulator
Ground Pin
Chip Enable Pin
No Connection
Input Pin
Vref
6 1
3 2,5
Current Limit
V OUT
GND
IC5 : R1172S121D-E2-F
Voltage regulator
No replacement part available.
No replacement part available. No replacement part available.
HDMI Tx
BUFFER
HDMI Tx
SELECTOR
HDMI OUT 1
(HDMI CONTROL)
HDMI OUT 2
To DIGITAL 6/7
To DIGITAL 6/7
To DIGITAL 2/7
To DIGITAL 2/7
To DIGITAL 3/7
To DIGITAL 6/7
to VIDEO (3)_W3801
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