Sony XAV-A1 Service Manual page 65

IC308 LC74781JM-9616-E
24 23 22 21 20 19
HORIZONTAL HORIZONTAL
CHARACTER CHARACTER
SIZE SIZE
REGISTER REGISTER
HORIZONTAL
CHARACTER
SIZE
REGISTER
HORIZONTAL
CHARACTER
SIZE
REGISTER
1
IC309 MM1228XFBE
1
VIN1
SW1 2
VIN2 3
BIAS
CTL3 4
18 17
HORIZONTAL VERTICAL
CHARACTER CHARACTER
SIZE SIZE
REGISTER REGISTER
HORIZONTAL VERTICAL
SIZE SIZE
DOT COUNTER
COUNTER COUNTER
AND INVERSION
TIMING
GENERATOR
SYNCHRONIZATION
SIGNAL GENERATOR
2 3
8 GND
VOUT
7
VCC
6
5 IN3
16
HORIZONTAL VERTICAL BLINKING
DISPLAY DISPLAY AND INVERSION
POSITION POSITION CONTROL
REGISTER REGISTER REGISTER
BLINKING
HORIZONTAL VERTICAL
AND INVERSION
DOT COUNTER
CONTROL
CIRCUIT
BLINKING BLINKING
AND INVERSION
CONTROL CONTROL
REGISTER REGISTER
CHARACTER LINE
CONTROL CONTROL
COUNTER COUNTER
CHARACTER OUTPUT CONTROL
BACKGROUND CONTROL
VIDEO OUTPUT CONTROL
4 5 6 7
15 14 13
DISPLAY RAM WRITE
CONTROL ADDRESS
REGISTER COUNTER
DECODER
DISPLAY RAM
DECODER
FONT RAM
SHIFT
REGISTER
8
XAV-A1
8 BITS LATCH
+
COMMAND
DECODER
SERIAL PARALLEL
CONVERTER
9 10 11 12
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