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

IC BLOCK DIAGRAM & DESCRIPTION
IC002 ADV7172KST
(PAL and NTSC square pixel operation)
TTXREQ
36
POWER
MANAGEMENT CGMS & WSS
Vss 1,11,20,28,30 CONTROL INSERTION
(SLEEP MODE) BLOCK
RESET
22
8 Y 8 9
CLOCK
ADD INTER-
DATA
SYNC POLATOR
4-2
P7-P0 4:2:2 TO YCrCb
43-38
4:4:4 TO
8 8 8
U
INTER- YUV
14-12
P15-P8
9-5 POLATOR MATRIX
ADD INTER-
8
8 V 8 BURST POLATOR
HSYNC 15
VIDEO TIMING
FIELD/VSYNC
16
GENERATOR
2
I C MPU PORT
BLANK
17
44 23 24
CLOCK SCLOCK SDATA ALSB
IC015 MC74H174AD(HEX D-TYPE FLIP-FLOP)
RESET
1
16
Q0
2
15
D0
3
14
D1
4
13
Q1
5
12
D2
6 11
Q2
7 10
GND
8 9
IC115 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
TTX
37
M
10
U
10
10-BIT
L
TELETEXT
DAC
T
INSERTION YUV TO
10
I
BLOCK RBG
10
10-BIT
P
MATRIX
DAC
L
10 E
10
X 10-BIT
E
DAC
PROGRAMMABLE 10
9
R
LUMINANCE
FILTER
10
8 U
10
PROGRAMMABLE
10-BIT
CHROMINANCE
8 10 V DAC
FILTER
10 10
REAL-TIME
SIN/COS
VOLTAGE
CONTROL
DDS BLOCK REFERENCE
CIRCUIT
CIRCUIT
18 35 10,19,29,43
SCRESET/RTC GND
VCC
Q5
Inputs
Reset Clock D
D5
L X X
D4
H H
Q4
H L
D3
H L X
H X
Q3
CLOCK
IC003 BA7660FS(3 CHANNEL 75 OHM DRIVER)
MUTE
27 DAC D(PIN 27)
INA
DAC C(PIN 26)
26
GAC B(PIN 31) GND
31
INB
32 DAC A(PIN 32)
GND
33 V
REF
34 R
SET
25 COMP
N.C.
INC
GND
IC101 24LC16B/P (16K EEPROM)
Output
Q
L
H
L
No Change
No Chenge
Name
V
SDA
SCL
WP
V
A0,A1,A2
IC117 T2316162A-45J(1024 x 16 DRAM)
SYM.
A0~A9
RAS
CASH
CASL
WE
OE
DQ0~DQ15
V
CC
V
SS
NC
- 70 -
1
2 6dB 75Ω
3
4
6dB 75Ω
5
6
7
6dB 75Ω
8
Function
Ground
SS
Serial Address/Data I/O
Serial Clock
Write Protect Input
+2.5V to 5.5V Power Supply
CC
No Internal Connection
TYPE DESCRIPTION
Input Address Input
Input Row Address Strobe
Input Column Address Stlobe /Upper Byte Control
Input Column Address Stlobe /Lower Byte Control
Input Write Enable
Input Output Enable
Input/Output Data Input /Output
Supply Power, 5V
Ground Ground
- No Connec
VCC
16
OUTA1
15
OUTA2
14
OUTB1
13
OUTB2
12
N.C.
11
OUTC1
10
OUTC2
9