Sanyo DVD-1500A, Service Manual

Page: 66 / 93

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IC BLOCK DIAGRAM & DESCRIPTION
IC132 NJM4560(OP AMP)
1 A: OUT
A: -IN
A: +IN
V
EE
2
3
4
8 Vcc
B: OUT
B: -IN
B: +IN
7
6
5
B A
4
2
1 5
V
CC
GND
IN A
IN B
OUT Y
3
IC133,135,137 NC7SZ08P5(2 INPUT A ND GATE)
4
2
1
5
V
CC
GND
IN A
NC
OUT Y
3
IC136,504 TC7SHU04FU(INVERTER)
IC131 PCM1723(D/A CONVERTER)
No. Name I/O DESCRIPTION
1 XT1 -
27 MHz x'tal oscillate input or external oscillator
2 SCKO O System clock output
3 VCP -
PLL power source
4 NC -
N.C
5 MCKO O Master clock buffer output
6 M L I
Software control latch
7 MC I
Software control clock
8 MD I
Software control data
9 RSTB I
Reset
10 ZERO O Zero data flag output
11 VOUTR O Rch. Analogue power output
12 GNDA -
Analogue ground
13 VCA -
Analogue power 5V
14 VOUTL O Lch. Analogue power output
15 CAP -
Output amplifier common
16 BCKIN I
Bit clock input for data
17 DIN I
Data input
18 LRCIN I
Basic sampling clock input
19 NC -
N.C
20 RSV -
N.C
21 VDD -
Digital power source 5V
22 GNDD -
Digital ground
23 GNDP -
PLL ground
24 XTO -
Crystal oscillator
1
18
19
20
21
24
25
26
27
28
16
6
29
2~5
7~10
35~38
40~43
I/O1~I/O4
I/O7~I/O8
I/O9~I/O12
I/O13~I/O16
39
2
3
4
5
6
7
8
9
10
13
14
44
43
42
41
40
39
38
37
36
35
32
31
V
SS
OE
CASL
CASH
V
CC
NC
NC
NC
WE
V
CC
V
CC
15
16
17
18
19
20
21
22
30
29
28
27
26
25
24
23
NC
A7
A8
A6
A5
A4
V
SS
RAS
A0
A1
A2
A3
V
CC
A0
15
31
30
A1
A2
A3
A4
A5
A6
A7
A8
PIN NO. TYPE SYM. DESCRIPTION
Address Input
Row Address Strobe
Column Address Stlobe /Upper Byte Control
Column Address Stlobe /Lower Byte Control
Write Enable
Output Enable
Data Input /Output
Power, 5V
Ground
No Connec
A0~A8
RAS
CASH
CASL
WE
OE
V
CC
V
SS
NC
I/O1-I/O16
Input
Input
Input
Input
Input
Input
Supply
Ground
-
Input/Output
16~19,22~26
14
28
29
13
27
1,6,20
21,35,40
11,12,15,30
2~5,6~10,31~34,36~39
WE
RAS
CASL
CASH
OE
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
V
SS
V
SS
I/O16
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
TSOP44
Top view
16
16
9
9 9
8 8
9
9
CONTROL
LOGIC
DATA-IN BUFFER
NO.2 CLOCK
GENERATOR
COLUMN
ADDRESS
BUFFER
REFRESH
CONTROLLER
REFRESH
COUNTER
ROW
ADDRESS
BUFFER(9)
NO.1 CLOCK
GENERATOR
ROW
DECODER
512
512
512x512x16
MEMORY
ARRAY
DATA-OUT
BUFFER
COLUMN
DECODER
SENSE AMPLIFIERS
VO GATING
512x16
TSD
MUTE
BIAS
6dB
6dB
90k
90k
1 2
3 4
5 6
7
8
VCC OUT2 BIAS IN2
OUT1 MUTE IN1 GND
1 A: OUT
A: -IN
A: +IN
V
EE
2
3
4
8 Vcc
B: OUT
B: -IN
B: +IN
7
6
5
B A
IC635 BH3544F(HEADPHONE AMP)
IC674 NJM4560M(OP AMP)
IC201 T224162B(DRAM)