Yamaha RX-V3800 - AV Receiver, Service Manual

Page: 49 / 99

IC181
IC193
CB185
IC192
CB186
IC182
IC196
IC187
CB187
CB188
IC188
IC198
IC184
IC183 IC191
IC192
IC192
CB181
IC192
IC192
IC189
IC190
IC186
IC185
IC193
IC193
IC193
IC194
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V3800/DSP-AX3800
139
★
All voltages are measured with a 10M
Ω
/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.
D-VIDEO 5/5
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 3.3 3.3 3.3 3.3 3.3 1.8 2.6 0
3.3
3.3
3.3
3.3
3.3 3.3 3.3
0.3 3.3
3.3
3.3
2.6 3.3 0
3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3
0.8 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 3.3 3.3
3.3
3.3
3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 0 0 3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
5.0
0
0
0.1
0
0
0
5.0
5.0
5.0
5.0
0
0
5.0
5.0
3.3
3.3
3.3
3.3
3.3
3.3
5.0
5.0
0.1
0
0
0
0
3.3
3.3
5.0
3.3
3.3
5.0
5.0
5.0
0
9.0
9.0
9.0
0
5.0
0
1.8
1.8 3.3
0
1.8
3.3
3.3
0
3.3
3.3
0
4.1
4.1
4.1
0
3.3
0
2.8
0
2.8
1.8
1.8
1.8
2.8
0
1.8
0
0
3.1
3.1
3.1
0
1.8
1.8
3.3
3.3
0
4.1
4.1
4.1
0
3.3
0
3.3
3.3
0
4.1
4.1
4.1
0
3.3
0
3.3
3.3
0
2.8
4.1
4.1
0
3.3
0
1.8
1.8
0
2.8
2.8
2.8
0
1.8
0
2.8
2.8
5.0
0
5.0
4.9
0
0
5.0
5.0 3.1
3.1
0.7
0
0
0
0.1
0
0.7
4.9 5.0
4.9
5.0
5.0
5.0 5.0
5.0
0.1
5.0
0.1 5.0
0.1
5.0
5.0
5.0
5.0
5.0
3.3
3.3
3.3
0
0
0
0
0
3.3
3.3
0
3.3
0
0
0
0
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0.4
0
0.4 5.0 5.0 0.3
0.3 0.3 0.3
0
3.3
0 0 0
0
5.0
5.0
0
5.0
0
5.0 5.0 5.0 3.6
4.9
0
5.0
5.0
0
5.0 2.6 5.0
0
2.6
5.0
5.1
3.3
0
0
0
0
3.3
0
0.2
0
3.3
0
4.8
4.8
5.0
5.0
0.1
0
5.0
5.0
5.0
5.0
3.3
3.3
0
0
0
0
3.3
3.3
3.3
3.3
3.3
3.1
5.0
5.0
0
3.3
3.3
3.3
3.3
5.0
3.3
3.3
3.1
5.0
A-3
POINT A-3 XL181 (Pin 22 of IC182)
to D-VIDEO 3/5
to D-VIDEO 2/5
to D-VIDEO 4/5
to D-VIDEO 2/5
to D-VIDEO 3/5
to D-VIDEO 3/5
to D-VIDEO 4/5
to D-VIDEO 3/5
to D-VIDEO 2/5, 4/5
RX-V3800
to D-VIDEO 1/5
to D-VIDEO 1/5
to D-VIDEO 1/5
VIDEO MICROPROCESSOR
IC189 : R1171S181B-E2-F
Voltage regulator
V
DD
CE
Pin No.
1
2
3
4
6
Symbol
V
OUT
GND
CE
NC
V
DD
Description
Output Pin of Voltage Regulator
Ground Pin
5 GND Ground Pin
Chip Enable Pin (active at "H")
No Connection
Input Pin
Vref
6 1
3 5
Current Limit
V
OUT
GND
2
GND
IC183, 185 : R1171S331B-E2-F
Voltage regulator
V
DD
CE
Pin No.
1
2
3
4
6
Symbol
V
OUT
GND
CE
NC
V
DD
Description
Output Pin of Voltage Regulator
Ground Pin
5 GND Ground Pin
Chip Enable Pin (active at "H")
No Connection
Input Pin
Vref
6 1
3 5
Current Limit
V
OUT
GND
2
GND
IC191 : R1172S181B-E2-F
Voltage regulator
V
DD
CE
Pin No.
1
2, 5
3
4
6
Symbol
V
OUT
GND
CE
NC
V
DD
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
V
DD
CE
Pin No.
1
2, 5
3
4
6
Symbol
V
OUT
GND
CE
NC
V
DD
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
IC184, 190 : R1172S331B-E2-F
CMOS-based positive-voltage regulator IC
V
DD
C
D
R
D
1 2
3
5
Vref
OUT
GND
IC187 : R3112N421A-TR-F
Low voltage detector with output delay
IC192 : TC74VHCT08AFT
Quad 2-input AND gate
Vcc 14
4B
4A
4Y
3B
3A
3Y
1A 1
2
3
13
12
11
10
9
8
4
5
6
7
1B
1Y
2A
2B
2Y
GND
IC182 : M30845MW-001-GP
Single chip 16/32-bit microprocessor
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
Port P7
Port P14 Port P15 Port P11 Port P12
Port P10
Port P9
Port P8
P8
5
Port P13
R0H R0L
R1H R1L
R2
R3
A0
A1
FB
SB
FLG
INTB
ISP
USP
PC
SVF
SVP
VCT
Multiplier
M32C/80 series microprocessor core
Clock Generation Circuit
X
IN
- X
OUT
X
CIN
- X
COUT
On-chip Oscillator
PLL Frequency Synthesizer
A/D Converter:
1 circuit
Standard: 10 inputs
Maximum: 34 inputs
(2)
UART/Clock Synchronous Serial I/O:
5-channel
CRC Calculation Circuit (CCITT):
X16+X12+X5+1
X/Y Converter:
16-bit x 16-bit
D/A Converter:
8-bit x 2-channel
Peripheral Functions
<
V
CC2
>
<
V
CC1
>
<
V
CC1
>
ROM
RAM
Memory
<
V
CC1
> <
V
CC2
>
7 8 5 8 8
(Note 1)
8
8
7
8 8 8 8 8 8 8
8
DMACII
DMAC
Watchdog Timer (15-bit)
CAN Module: 1-channel
Intelligent I/O
Time Measurement: 8-channel
Waveform Generating: 8-channel
Communication Functions:
Clock Synchronous Serial I/O, UART,
HDLC Data Processing
Timer (16-bit)
Timer A: 5-channel
Timer B: 6-channel
Three-Phase Motor Control Circuit
NOTES:
1. Ports P11 to P15 are provided in the 144-pin package only.
2. Included in the 144-pin package only.
V
DD
CE
Pin No.
1
2
3
4
5
Symbol
V
OUT
V
DD
GND
NC
CE
Description
Output Pin for Voltage Regulator
Input Pin
Ground Pin
No Connection
Chip Enable Pin (active at "H")
Vref
2 1
5 3
Current Limit
V
OUT
GND
IC188 : R1130H181B-TI-F
CMOS-based positive-voltage regulator IC
IC186 : R1131N181D
Voltage regulator
Pin No. Symbol Description
1 V
DD
Input Pin
2 GND Ground Pin
3 CE Chip Enable Pin
4 NC No Connection
5 V
OUT
Output Pin
V
DD
CE
Vref
Current Limit
V
OUT
GND
1
2
3
G
IN A
GND
4
5
OUT Y
VCC
G
H
L
L
A
H
L
X
Y
L
H
Z
IC196 : TC7SET125FU
bus buffer
IC198 : R1154H050B-T1-F
Voltage regulator
V
IN
CE
Pin No.
1
2
3
4
5
Symbol
V
OUT
GND
CE
NC
V
DD
Description
Voltage Regulator Output Pin
Ground Pin
Chip Enable Pin
No Connection
Input Pin
Vref
Short
Protection
Peak Current
Protection
Thermal
Protection
V
OUT
GND
A
H
L
H
L
H
L
L
H H
H
H
L
B Y
1
3
2
5
4
GND
V
CC
IC195 : TC7SH32FU
2-input OR gate
IN A
IN B
OUT Y
IC193 : TC74VHC00FT
Quad 2-input NAND gate
Vcc 14
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
A
L
L
H
H
L
L
L
H H
H
H
H
B Y
to A-VIDEO_CB204
Page 134 I4
to FL (2)_CB957
Page 141 E2
to POWER (3)_W40
Page 132 H3