Yamaha RX-V667 Service Manual page 110

A B C
RX-V667/HTR-6063/RX-A700
DIGITAL 4/7
1
HDMI OUT
CB71
2
3
4
5
0
0
3.4
0
HDMI Tx
1.8
0
0
No replacement part available.
0
0
0
0
IC71
0
0
1.8
0
3.4
0
0
6
0
0
0
0
0
0
0
7
8
9
10
★ 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.
110
D E F
3.3
1.7 2.1 3.2
0
0
3.3
IC82
0 0
4.9 4.9
IC74
3.5 5.5
0 IC72
5.1
4.9 5.1
3.3
3.4
0
0
0
0
0
0
0
0
0
3.4
0
1.8
1.7
1.7
1.3
0
0
0
0
0
0
0
0
IC73
5.5
3.4
5.5
3.4
G H I
IC71: SiI9134CTU
HDMI transmitter
CB72
RESET#
CSDA
CSCL
VSYNC
HSYNC
IDCK
D[35:0]
S/PDIF
MCLK
SCK
SD[3:0]
DL[3:0]
DR[3:0]
IC78
IC75
SELECTOR
IC81
5.5 0
5.0 3.3
IC77
1.8
5.5
1.3 1.8 1.8 5.5
IC76
0
3.3
1.3 0
1.8 3.3
J K L
IC72: NJM2867F3-05 (TE1)
Low dropout voltage regulator
INT HPD
V
5
IN
CI2CA Control 1
E-DDC DSCL Thermal
Slave
Registers Master DSDA
Protection
and
Video HDCP
Configuration
Data Encryption HDCP Keys Bandgap
Logic
EEPROM
Capture Engine Reference
DE Logic/DE
Generator EXT_SWING
YCbCr to RGB
Tx0
Color Space XOR
HDMI 1.3 Tx1
Converter/ Mask
TMDS Tx2
4:2:2 to 4:4:4
Core
TxC
WS Audio Converter GND 2
Capture
Logic
To DIGITAL 1/7
3.4 3.4
0 0
0 0
0 0
0 0
0 0
0 0
0 0
To DIGITAL 7/7
0 0
0 0
IC80
BUFFER
To DIGITAL 6/7
To DIGITAL 3/7
CB74
0
0
5.6 Page 120
5.6
to VIDEO (3)_W3801
CB73
3.4
3.4
0
3.3
IC84 0
3.4
3.3
1.2
3.3
0
0
DIGITAL (1)
M N
IC73, 77: EN5327QI
DC DC converter
PVIN
19
UVLO
Thermal Limit
V
4
OUT
Current Limit
1, 2, 12, 34-38
Over Voltage
NC(SW)
P-Drive
VOUT
5-11
(-)
N-Drive
PWM
Comp
(+) 13-18
PGND
Compensation
Network
PLL / Sawtooth
SYNC 26
Generator
(-)
31 XFB
EAOUT Error
Amp
(+) Power
ENABLE
27 Good 28 POK
Logic
33 AVIN
SS 30 Soft Start
Voltage Regulated
Reference
Voltage
29 32
EAOUT AGND
IC76: R1172H121D-T1-F
CMOS-based positive-voltage regulator IC
V V
DD 4 5 OUT
Vref
Current Limit
CE GND
1 2
Pin No. Symbol Description
1 CE Chip Enable Pin
2 GND Ground Pin
3 NC No Connection
4 V Input Pin
DD
5 V Output Pin of Voltage Regulator
OUT
IC79: RP130Q501D-TR-F
Voltage regulator
V V
DD 4 3 OUT
Vref
Current Limit
CE 1 2 GND
Pin No. Symbol Description
1 CE Chip Enable ("H" Active)
2 GND Ground Pin
3 V Output Pin
OUT
4 V Input Pin
DD
IC80: 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
IC81: TC74VHC157FT
Quad 2-channel multiplexer
SELECT 1 16 Vcc
1A 2 A S G 15 ST
1B 3 B A 14 4A
1Y 4 13 4B
Y B
2A 5 12 4Y
A Y
2B 6 B A 11 3A
2Y 7 10 3B
Y Y B
GND 8 9 3Y
IC82: TC7WHU04FU
Triple inverter
V 1Y 3A 2Y
CC
8 7 6 5
I8
1 2 3 4
1A 3Y 2A GND
IC83: RP130Q121D-TR-F
Voltage regulator
V V
DD 4 3 OUT
IC84: TC7SH08FU
2-input AND gate
Vref
Current Limit IN B 1 5 V
CC
CE 1 2 GND
IN A
2
OUT Y
GND 3 4
Pin No. Symbol Description
1 CE Chip Enable ("H" Active)
2 GND Ground Pin
3 V OUT Output Pin
4 V DD Input Pin