Yamaha RX-V667 Service Manual page 109

A B C
DIGITAL 3/7
1
CB61
2
IC61
To DIGITAL 6/7
3
4
5
6
7
8
POINT B XL61 (Pin 3)
IC62: M12L128168A-5TG2T
2 M x 16-bit x 4 banks synchronous DRAM
CLK
9 Clock
Generator
CKE
Address
CS
RAS
10 CAS
WE
D E F
2.3 3.4
0 1.7
B
To DIGITAL 1/7
0
3.4
3.4 0
3.4 0
IC64
0
3.4
0
3.4 0
3.4 0
3.4 0
3.4 0
3.4 0
3.4 0
0
3.4 0
3.4 0
3.4 0
3.4 0
FPGA
0
3.4 0
3.4 0
3.4 0
3.4 0
3.4 0
0
3.4
0
1.2 0
1.2 0
1.2
1.2 0
1.2 0
1.2
0
1.2
0
1.2
0
1.2
1.2 0
3.4 0
0 3.4
3.4
3.2
3.2 3.4
3.2 3.4
0
No replacement part available.
V 1
DD
DQ0 2
V 3
DDQ
DQ1 4
Bank D
DQ2 5
Bank C
Bank B V SSQ 6
7
Row DQ3
DQ4 8
Address
V 9
Buffer DDQ
Mode Bank A DQ5 10
and
Register DQ6 11
Refresh
V SSQ 12
Counter
13
DQ7
V 14
DD
Sense Amplifier
LDQM 15
L(U)DQM
WE 16
Column
Column Decoder
CAS 17
Address
RAS 18
Buffer 19
CS
BA0 20
and
BA1 21
Data Control Circuit
Counter DQ
A /AP 22
10
A 0 23
A 1 24
A 2 25
A 26
3
V 27
DD
G H
No replacement part available.
No replacement part available.
3.3 0 0
0
0 3.3
0 0.3
0
IC64
2.6 0 0
3.1
0 3.3
0 3.3
0
0 0 3.3
0 1.0
0
0 0
0 0 2.3
0 0 1.0
0.7 0 2.5
2.3
0 0
0 0 0
0 0 2.4
2.8
1.9 0
0 0 0
1.5 0 0
0 0 2.5
1.7 0 2.8
0 0 2.8
0 0 2.8
0 0 2.8
2.8
0 0
0 2.8
0
0 0 2.8
0.4 2.8
0
0.5 0 2.8
0.5
0 2.8
1.4
0 0
0.6 0 1.4
1.2 0
0 0 2.8
0 0 2.9
0 1.4
0
1.7 0 3.1
0 2.4 3.1
2.8 3.3
2.8 0
2.8 2.3
1.9 2.8 2.3
1.5 2.8 3.3
2.8
2.8 1.7
2.8
2.8
To DIGITAL 6/7
54 V
SS
53 DQ15
52 V
SSQ
51 DQ14
50 DQ13
IC63: R1172H121D-T1-F
49 V
DDQ
CMOS-based positive-voltage regulator IC
48 DQ12
47 DQ11
46 V
SSQ
45 DQ10 V 4 5 V
DD OUT
44 DQ9
43
V DDQ
42 DQ8
41 V
SS
40 NC
Vref
39 UDQM
Current Limit
38 CLK
CE 1 2 GND
37
CKE
36 NC
35 A
11
34 A Pin No. Symbol Description
9
33 A 8
1 CE Chip Enable Pin
32 A 7
2 GND Ground Pin
31 A 6
30 A 3 NC No Connection
5
29 A
4 4 V Input Pin
DD
28 V
SS
5 V Output Pin of Voltage Regulator
OUT
I J K
To DIGITAL 4/7
0.9
1.2
1.4
IC64
2.0
2.5
1.3
1.2
1.6
1.6
3.4
0
0
0
1.3
0
FPGA
0
0
2.8
2.0
0
0
0
3.1
1.4
3.3
1.6 1.6
IC65
3.4
IC65
0
IC62
DIGITAL (1)
IC65: TC7SH125FU
Bus buffer
G 1 5 V
CC
IN A 2
GND 3 4 OUT Y
L M N
RX-V667/HTR-6063/RX-A700
1.2 1.8
IC63
0
1.8
To DIGITAL 2/7
To DIGITAL 2/7
★ 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.
109