Yamaha RX-V3800 Service Manual page 49

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