Mitsubishi Electric ED-310BE-OL4 Service Manual page 20

IC2G0 MB90096PF-G-268-EF
IC9H1 TA78L12F
IC622 NJM2279M(TE1)
V
12
IN1
3
V
IN2
V
1
IN3
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DISP 14
VSYNC 13
EVEN 11
RESET 5
CS 26
SERIAL
INPUT
SIN 25
CONTROL
SCLK 24
TRE 23
COMMAND
TABLE ROM
CONTROL
COMMAND
TABLE
ROM
(16 KByte)
DOCKI 8
HSYNC 12
CPOUT 1
VCOIN 3
SW2 MUTE1 V
+
8
11
13
6dB
6dB
2 4 7 6
SW1 MUTE2 GND1 GND2
search engine
DISPLAY CONTROL
DISPLAY
FONT
MEMORY
ROM
VRAM
(32 x 16) (512 kinds)
DOT CLOCK
DOT CLOCK
GENERATION CIRCUIT
(PLL CIRCUIT)
IC314,315 BA3131FS-E2
3 INPUT
+IN1A
1 OUTPUT
-IN1A
+IN1B
-IN1B
2 COMMON
+IN1C
-IN1C
OUT1
SW 1
10
75 V
OUT1
SW 2
GND
5
75 V
OUT2
14
V
-
20
20 BOUT
19 ROUT
DISPLAY
OUTPUT
18 GOUT
CONTROL
17 IOUT
16 VOB1
15 VOB2
10 FH
9 DOCKO
1
_
_
2
3
_
_
4
5
_
_
6
7
3 3
8
_
9
10
R R
+IN2A
20
11 -IN2A
12 +IN2B
-IN2B
13
+IN2C
14
-IN2C
15
16 OUT2
VREF OUT
17
1/2 VCC
18
VCC
19