Yamaha MCX-A10 Service Manual page 32

MCX-A10/MCX-SP10
IC601 : LC74781-9844 (U model)
IC601 : LC74782-9866 (C, A, B, G models)
On-screen Display Controller
CS
SERIAL
SIN
PARALLEL
CONVERSION
SCLK
RST
VDD1
VSS1
VDD2
CHARA
CHARACTER
OSC IN
OUTPUT
DOT CLOCK
OSC OUT
GENERATOR
SYN IN
SYNCHRONOUS
SEP C
SEPARATION
SEP OUT
SEP IN
CTRL3
32
1
VSS1
XTAL IN 2
3
XTAL OUT
CTRL1 4
5
BLANK
OSC IN 6
OSC OUT 7
8
CHARA
CS 9
10
SCLK
SIN 11
VDD2 12
8 BIT
LATCH
+
COMMAND
DECODER
HORIZONTAL
VERTICAL DIRECTION
DIRECTION
CHARACTER SIZE
CHARACTER SIZE
REGISTER
REGISTER
HORIZONTAL VERTICAL
SIZE COUNTER SIZE COUNTER
SYNCHRONOUS
DISTINCTION
TIMING
GENERATOR
COMPLEX
SYNCHRONOUS
SIGNAL
SEPARATION
CONTROL
CTRL
24
VDD1
23 RST
22
CTRL3
21 CTRL2
20
SEP IN
19 SEP OUT
18 SEPC
17
SYN IN
16 VDD1
15
CV IN
14 NC
13 CV OUT
HORIZONTAL VERTICAL
DISPLAY DISPLAY
POSITION POSITION
REGISTER REGISTER
HORIZONTAL VERTICAL
DOT COUNTER DOT COUNTER
HORIZONTAL
VERTICAL
DISPLAY POSITION DISPLAY POSITION
DETECTION DETECTION
CHARACTER LINE
CONTROL CONTROL
COUNTER COUNTER
SYNCHRONOUS CHARACTER OUTPUT CONTROL
SIGNAL
GENERATOR
CTRL XTAL XTAL BLANK
2 IN
1 OUT
FLASHING & RAM
DISPLAY
CONVERSION WRITE
CONTROL
CONTROL ADDRESS
REGISTER
REGISTER COUNTER
FLASHING &
DISPLAY
CONVERSION DECODER
CONTROL
CIRCUIT
DECODER
FONT ROM
SHIFT
BACKGROUND CONTROL
REGISTER
VIDEO OUTPUT CONTROL
CV CV
IN OUT
RAM