Yamaha RX-V3800 Service Manual page 34

A B C
RX-V3800/DSP-AX3800
DSP 2/3
1
2
3
4
DIGITAL IN
to DSP 1/3
5
ANALOG IN
6
3.3
5
3.3 1
4
IC531
0 2
3
0
7
to DSP 3/3
8
9
# 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.
10
124
D E F
Page 141 L5
to FL (5)_CB973
5.0 5.0 0 0.3 0
0 0 3.3
0 5.0
IC536
5.0 5.0 5.0
0 0
0
0
0 0
0 0 0 0.2 0.2
3.3 3.3
SBL/SBR
0
1.6
0
0
0
0
0
1.2
0
1.3
0 DECODER
0
0
3.3
0
1.2
1.6
0
0
3.3
1.2
0
0
0
1.2
No replacement part available.
0
サービス部品供給なし
3.3
3.3
3.3
0
3.3
3.3
1.2
3.3
3.3
0
IC535: SN74AHCT08PWR
IC531, 537, 539, 546: TC7SH08FU IC532, 533, 538: TC7SET32FU
Quadruple 2-input positive-AND gates
2-input AND gate 2-input OR gate
IN B 1 5 V
IN B 1 5 V CC
CC
1A 1
1B 2
IN A 2
IN A 2
1Y 3
OUT Y GND 3 OUT Y
GND 3 4 4
2A 4
2B 5
2Y 6
GND 7
G H
Page 141 M5
to FL (5)_CB959
3.3
0
0 0
5.0 5.0 0
4.8 4.8
3.3 3.3
0 4.8
3.3 3.2
0
0 3.3
0 0
3.3 3.3
3.3 3.3
3.3
0 3.3
C/SW
1.2
1.2
SL/SR 0
FL/FR
3.2
3.2
0
0
3.3
3.3
1.2
3.2
0
0
0
3.3
0
3.3
0
3.3
0
1.2
1.7
1.3
0
2.7
1.2
2.0
0
2.1 3.3
0 0
0
0
3.3 3.3
0 0
1.9
0 0
1.7
0 3.3
0
0 0
1.2
0 0
0
3.3 0
0
0 0
0
0 0
3.3
0 3.3
0 0
3.3 0
3.3
3.3 3.1
3.3 1.6
0 3.3
0
3.3 0
0
3.3
0 0
0 1.7
1.7 1.9
1.3 2.1
2.7 2.0
0
3.3
RAM
IC536: SN74LV245APWR IC541, 542: R1172S121D-E2-F
Octal bus transceiver with 3-state outputs Voltage regulator
DIR 1 20 Vcc
V DD 6 1 V
A1 2 19 OE
A2 3 18 B1
A3 4 17 B2
Vref
14 Vcc
A4 5 16 B3
Current Limit
13 4B CE 3 2,5 GND
A5 6 15 B4
12 4A
A6 7 14 B5
11 4Y
Pin No. Symbol Description
A7 8 13 B6
10 3B 1 VOUT Output Pin of Voltage Regulator
2, 5 GND Ground Pin
9 3A A8 9 12 B7 3 CE Chip Enable Pin
4 NC No Connection
8 3Y 6 VDD Input Pin
GND 10 11 B8
I J K
Page 132 H6 Page 142 I8 Page 132 H7
to POWER (3)_CB16 NET_W605 to POWER (3)_CB17
5.0 5.5 5.3 4.6 (U, C models)
IC543 IC545
4.6
3.3 4.8
4.3
-0.1
IC544
-0.1 1.4
4.8
0
0
2.3
1.2 2.3 1.2
1.2 2.3
2.2
1.2
0 0 0 0
2.3 2.3
0
to DSP 3/3
ANALOG IN
0
0
0 3.3
0 0
0 0
0 0
0 0
0 0
1.7 0
0 0
0
3.3 0
3.3 3.3
0
0
0
0
0
0 0
1.9 0
2.1 0
2.0 0
2.7 3.3
1.3 0
1.7
3.3
0
FLASH ROM
IC544: NJM2885DL1-33
IC543, 545: PQ200WNA1ZPH Low dropout voltage regulator
OUT
Low power loss regulator
V IN 1
1 3
DC output (Vo)
DC input (Vin)
Bandgap
Reference
IC
4
ON/OFF control (Vc) 2 DC output adjustment (Vadj)
5
GND 2
GND
L M N
IC588: SN74LV157APWR
Quadruple 2-line to 1-line data selectors/multiplexers
1A 2
4 1Y
1B 3
2A 5
7 2Y
2B
6
3A 11
9 3Y
3B 10
4A
14
A/B
1 16
4Y
12
4B 1A 2 15
13
1B
3 14
1Y 4 13
G
15
2A 5 12
A/B
1
2B 6 11
2Y 7 10
GND 8 9
Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages.
IC587: W9864G6GH-7
64 M x 4 banks SDRAM
CLK
CLOCK
BUFFER
CKE
CS
RAS
CAS
WE COLUMN DECODER COLUMN DECODER
CELL ARRAY CELL ARRAY
A10 BANK #0 BANK #1
MODE
A0
REGISTER
SENSE AMPLIFIER SENSE AMPLIFIER
A9
A11
BS0
BS1
DATA CONTROL DQ
CIRCUIT BUFFER
REFRESH COLUMN
COUNTER COUNTER
COLUMN DECODER COLUMN DECODER
CELL ARRAY CELL ARRAY
BANK #2 BANK #3
SENSE AMPLIFIER SENSE AMPLIFIER
IC534: D70YE101BRFP266
Floating-point digital signal processors
Program/Data JTAG EMU
256 RAM
D1
256K Bytes McASP0
Data 64
32 16 Serializers
R/W
Program/Data
256 ROM Page1
C67x+ Microprocessor 32
256K Bytes
D2
Memory
Data 64 Controller 32
Program/Data
R/W McASP1
256 ROM Page2
6 Serializers
256K Bytes 32
Program
I/O INT Fetch Program/Data
32
ROM Page3 McASP2
256
256K Bytes 2 Serializers
32 DIT Only
Program CSP 32 32
3 V OUT 32 SPI1
Cache 256
32K Bytes PMP DMP
32 SPI0
Thermal
32 32
I2C0
Protection 32
High-performance
32
Crossbar Switch
32 I2C1
32 32 32 32
32 RTI
32
PLL
I/O Interrupts MAX0 CONTROL MAX1 Events
Out In
EMIF
dMAX
Peripheral Interrupt and DMA Events
V
CC
G
4A
4B
4Y
3A
3B
3Y
DQ0
DQ15
UDQM
LDQM