Upd6453Gt-658 - Sony DSR-300P Service Manual

IC
UPD6453GT-658 (NEC)FLAT PACKAGE
C-MOS ON-SCREEN CHARACTER DISPLAY
—TOP VIEW—
BUSY 1 20
CLK 2 19
CS
3 18
DATA 4 17
PCL 5 16
6 V 15
DD
CK
7 14
OUT
OSC 8 13
OUT
OSC 9 12
IN
10 GND 11
INPUT OUTPUT
CLK : CLOCK B
CS
: CHIP SELECT BUSY
CK
DATA : SERIAL DATA
H SYNC
: HORIZONTAL SYNC MP
OSC IN : OSCILLATOR IN OSC OUT
PCL : POWER ON CLEAR V
V SYNC
: VERTICAL SYNC V
4
DATA
2
CLK
1
BUSY
3
CS
7
CK OUT
OSC IN
9
OSC
CIRCUIT
OSC OUT
L OSC
8
SYNC
COSC IN COSC OUT
PROTECT
20 CIRCUIT
H SYNC
19
V SYNC
9-52
4 12
DATA VR
H SYNC
2 13
VG
14
VB
V SYNC
20 7
H SYNC CK OUT
19 11
V SYNC MP
B BLK
9 15
V CBL
OSC IN
G BLK
8
OSC OUT
16
R BLK
R BLK
17
G BLK
5 18
PCL B BLK
V CBL
1
BUSY
VB
CS
3
VG
VR
MP
, R , G : B, R, G, BLANKING
BLK BLK BLK
: BUSY OUT
OUT : CLOCK
: MASK PULSE
: OSCILLATOR OUT
, V , V : R, G, B, CHARACTER DATA
R G B
: VIDEO CUT BLANKING
CBL
DATA INPUT
SHIFFT
INSTRUCTION
REGISTER
DECODER
DATA
BUFFER
REGISTER
CAHRA
H
SIZE
ADDRESS ADDRESS
REGISTER
REGISTER COUNTER
H H
SIZE POSITION ADDRESS
COUNTER COUNTER COUNTER
V
ADDRESS
REGISTER
V V
TIMING
SIZE POSITION
GENERATOR
COUNTER COUNTER
CONTROL
SIGNAL
WRITE
VIDEO RAM
CHARA COLOR
DATA
DATA DATA
SELECTOR
8-BIT 3-BIT
H
x x
288 WORD 288 WORD
CHARACTER CHARACTER
GENERATOR GENERATOR
RAM ROM
V
12 x 18-BIT 12 x 18-BIT
ADDRESS
x x
COUNTER
16 WORD 240 WORD
BACKGROUND DISPLAY
BLINK
CONTROL CONTROL
DATA
DATA DATA
1-BIT
x REGISTER REGISTER
288 WORD
16
17
OUTPUT CONTROL
18
11 12 13 14 15
MP VR VG VB VCBL
6
V
DD
10
V
SS
R BLK
G BLK
B BLK
DSR-300/P(J,E)/V2