Yamaha RX-V1800, Service Manual

Page: 133 / 181

IC145
IC144
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-V1800/HTR-6190/DSP-AX1800
133
★
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 3/5
0
3.3
0.1
1.8
0
0
2.6
1.7
3.1
3.3
3.3
0
1.8
3.3
0
0
0
3.3
3.3
3.3
3.3
0
3.3
3.3
0.4
0.4
0
0.5
1.2
1.2
1.2
3.3
1.2
1.1
0.4
0.4
1.8
0
2.7
0
2.7
0
3.3
1.8
0
0
0
0
0
3.3
1.7
0 3.3 1.8 0 3.3 0 1.8 0 3.3 0 0 2.4 3.3 3.3 0 0 0 2.4 2.4 1.8 0 0 3.3 0 3.3 0 0 0 0 0 0
1.7
0
3.2
0.4
3.3 1.6 2.7 2.4 2.4 3.2 0.9 0.9 0.3 3.3 3.3 0.3 0.2 0.2 0.2 2.2 2.0 2.0 0.2 0.2 2.0 2.0 0.2 0.2
0.4 0.5 1.2 1.2 1.2 1.2 1.1 0.4 0.4 2.7
0
0.8
0 0 0 0 0 0 0
3.3 3.3 3.3 3.3 3.3 3.3 3.3 1.2
0.8 1.2 3.3
0 0
0
0 0
3.3 3.3
0
3.3 1.6 1.8
0
0.2 0.2 2.0 2.0
0
3.3 0.2 0.2 2.0 2.0
0
2.2 0.2 0.2 0.2 1.8 3.3 0.3 3.3 3.3 0.3
0
3.3 2.4 2.4 0.9 0.9
1.8
1.8
0
0
0.3
3.3
1.2
0.2
1.3
0.1
0
0.1
0.1
0.1
0
0
1.8
0
0.1
1.2
0.1
0
0.1
1.6
0.2
0.1
3.3
1.6
3.3
3.3
3.3
3.1
0
1.8
0
3.3
0
1.6
0
to D-VIDEO 2/5
to D-VIDEO 5/5
to D-VIDEO 4/5
to D-VIDEO 2/5, 4/5
to D-VIDEO 5/5
DE-INTERLACER
SDRAM
IC144 : W9864G6GH-7
64 M x 4 banks SDRAM
DQ0
DQ15
UDQM
LDQM
CLK
CKE
A10
CLOCK
BUFFER
COMMAND DECODER
ADDRESS BUFFER
REFRESH
COUNTER COLUMN
COUNTER
CONTROL
SIGNAL
GENERATOR
MODE
REGISTER
CELL ARRAY
BANK #2
COLUMN DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #0
CELL ARRAY
BANK #3
DATA CONTROL
CIRCUIT
DQ
BUFFER
COLUMN DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #1
ROW DECODER
A0
A9
BS0
BS1
CS
RAS
CAS
WE
A11
ROW DECODER
COLUMN DECODER
SENSE AMPLIFIER
COLUMN DECODER
SENSE AMPLIFIER
ROW DECODER ROW DECODER
IC145 : IP00C772
Color image enlagement/reduction LSI
MCLK
CK
DQM[1:0]
DQ[31:0]
/CS
/RAS
/CAS
/WE
CKE VDD3.3
BA[1:0]
A[11:0]
MCLKSEL[1:0]
OSC
MCLKO
MCLKRT
MDQM[1:0]
BA[1:0]
MA[11:0]
MD[15:0]
MCS
MRAS
MCAS
MWR