Ic Block Diagram & Description - Sanyo DVD-1500A Service Manual

IC BLOCK DIAGRAM & DESCRIPTION
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 source +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
IC136,504 TC7SHU04FU(INVERTER)
NC
1
IN A 2
GND
3
IC635 BH3544F(HEADPHONE AMP)
VCC OUT2
8
TSD
MUTE
1
OUT1 MUTE
IC674 NJM4560M(OP AMP)
A: OUT 1
A: -IN
2
A
A: +IN 3
V 4
EE
V
5
CC
OUT Y
4
BIAS IN2
7 6 5
BIAS
6dB
90k
6dB
90k
4
2 3
IN1 GND
8 Vcc
B: OUT
7
B
6 B: -IN
5 B: +IN
IC132 NJM4560(OP AMP)
A: OUT 1
A: -IN 2
A: +IN 3
4
V
EE
IC133,135,137 NC7SZ08P5(2 INPUT A ND GATE)
IN B
1
IN A
2
GND
3
IC201 T224162B(DRAM)
WE 15
CASL 31
30
CASH
NO.2 CLOCK
GENERATOR
COLUMN
ADDRESS
9
BUFFER
A0 18
REFRESH
A1 19
CONTROLLER
A2 20
A3 21
A4
24
REFRESH
A5
25
COUNTER
A6
26
A7 9
27
A8 28
ROW
9 ADDRESS
BUFFER(9)
NO.1 CLOCK
RAS 16
GENERATOR
TSOP44
V V
1 44
CC SS
I/O1 2 43 I/O16
I/O2 I/O15
3 42
I/O3 I/O14
4 41
I/O4 I/O13
5 40
V V
6 39 SS
CC
I/O5 I/O12
7 38
I/O6 8 37 I/O11
I/O7 I/O10
9 36
I/O8 I/O9
10 35
NC 13 32
NC
NC 14 31 CASL
WE 15 30 CASH
RAS 16 29
OE
NC
17 28 A8
A0 18 27 A7
19 26 A6
A1
A2 20 25 A5
A3 21 24 A4
V
V 22 23
CC SS
Top view
- 65 -
8 Vcc
7 B: OUT
A B
6 B: -IN
5
B: +IN
V
5 CC
OUT Y
4
CONTROL
DATA-IN BUFFER
LOGIC
DATA-OUT
BUFFER
COLUMN
9
DECODER
16
512
8 8
SENSE AMPLIFIERS
VO GATING
512x16
512x512x16
512
9
MEMORY
ARRAY
PIN NO. SYM. TYPE
16~19,22~26 A0~A8 Input Address Input
14 RAS Input Row Address Strobe
28 CASH Input Column Address Stlobe /Upper Byte Control
29 CASL Input Column Address Stlobe /Lower Byte Control
13 WE Input Write Enable
27 OE Input Output Enable
2~5,6~10,31~34,36~39 I/O1-I/O16 Input/Output Data Input /Output
1,6,20 V Supply Power, 5V
CC
21,35,40 V Ground Ground
SS
11,12,15,30 NC - No Connec
2~5 I/O1~I/O4
7~10 I/O7~I/O8
16
35~38 I/O9~I/O12
40~43 I/O13~I/O16
29 OE
6 V
CC
V
39
SS
DESCRIPTION