Sony SSC-DC593 Service Manual page 43

[|IC|]
BU3095-03FV-E2 (ROHM)
CHARACTER GENERATOR
—TOP VIEW—
SCLK 1 20 HSYNC
IN IN
CSB 2 19 VSYNC
IN IN
SDATA 3 18 VC0
IN OUT
RESETB 4 17 VC1
IN OUT
V 5 16 VC2
CC OUT
SDDIR 6 15 BLKA
IN OUT
NC 7 14 VC3
OUT
OSCIN 8 13 BLKB
IN OUT
TEST 9 12 MONI
IN OUT
GND 10 11 BLKC
OUT
VRAM
VRAM INTERFACE
1
SCLK
2
CSB
SERIAL
INTERFACE
3
SDATA
6
SDDIR
20
HSYNC
H/V SYNC
19 INTERFACE
VSYNC
8 DOTCLK
OSC
OSCIN
CONT
9
TEST
SSC-DC593/DC593P/DC598P (E)
INPUTS
: SERIAL DATA TRANSFER PERMISSION
CSB
HSYNC : HORIZONTAL SYNC SIGNAL
: DOT CLOCK
OSCIN
RESETB : RESET
SCLK : SERIAL DATA CLOCK
SDATA : SERIAL DATA
SDDIR : SERIAL DATA INPUT DIRECTION SELECT
TEST : TEST
VSYNC : VERTICAL SYNC SIGNAL
OUTPUTS
BLKA, BLKB, BLKC : BLANKING SIGNAL
MONI : TEST MONITOR
VC0 - VC3
: CHARACTER SIGNAL
OTHER
NC : NO CONNECTION
CHARACTER ROM
ROM INTERFACE
DISPLAY CONTROL
SCREEN BACKGROUND
PROCESSING
LINE BACKGROUND
PROCESSING
CHARACTOR/BACKGROUND
PROCESSING
SPRITE CHARACTOR
PROCESSING
TEST
MAX3085ESA-TG068 (MAXIM)
RS485/422 TRANSCEIVER
—TOP VIEW—
RO 1 R
OUT
RE
2
IN
DE 3
IN
DI 4
IN D
S-80827CNNB-B8M-T2 (SEIKO INSTR)
VOLTAGE DETECTOR
—TOP VIEW—
GND NC 2
V
CC
4 3
1 2
OUT V
CC
V
REF
18
VC0
4
GND
17
VC1
16
VC2
14
VC3
15
BLKA
13
BLKB
11
BLKC
INPUTS
DE : DRIVER ENABLE
8 V
CC
DI : DRIVER
7 B RE
I/O
: RECEIVER ENABLE
6 A
I/O
OUTPUT
5 GND
RO : RECEIVER
INPUTS/OUTPUTS
A : NON-INV DRIVER OUTPUT/RECEIVER INPUT
B : INV DRIVER OUTPUT/RECEIVER INPUT
_
1
+
OUT
IC
5-3