Mitsubishi Electric LC62 CHASSIS XL6500LU Service Manual page 107

IC60 AD883ARUZ

IN0 A
G = + or +2
2
IN0 B
3
IN A
G = + or +2
0
IN B
5
IN2 A
G = + or +2
6
IN2 B
22
SEL A/B
23
Output Enable
OE
6,3,4,7,2,24 7,5,9
VCC
VEE
GND
TRUTH TABLE
SEL A/B OE Output
0 0 IN A
 0 IN B
0  Hight Z
  Hight Z
PCB-BOO
IC770 NJM2072M
2µA
 20k
INPUT
DETECT
00k
SW
4
GND
2 3
GAIN
AMP. CAPACITOR FOR
CONTROL
OUTPUT RECOVERY TIME
IC772 R32N20A-TR-F
2
VDD
RD
+
-
Vref
5
CD
IC650 AD8075ARUZ
OE
20
OUT 0
DGND
IN2
8
AGND
OUT 
IN
AGND
6
OUT 2
IN0
V
2,4,9,
V +
8
6
OUT 
SCHMITT
7
OUT 2
5
4
NC
OUT
3
GND
 Vcc
6
Vcc
2 5
G =
3 4 OUT2
+/+2
4 3 V
EE
G =
5 2 OUT
+/+2
Vcc
6 
G =
OUT0
7 0
+/+2
V
8 9
EE EE
Truth Table
OUT0, , 2
OE
0 IN0, IN, IN2
 High Z
IC77 TC74VCX74FT
CLR
D
CK
PR
Q
Q
GND
Truth Table
Inputs
CLR PR
L H
H L
L L
H H
H H
H H
X: Don't care
- B3 -
Vcc
 4
2 3 2CLR
CK D
Q Q
3 2 2D
4  2CK
5 0 2PR
CK D
6 9 2Q
Q Q
7 8 2Q
Outputs
Function
D CK Q Q
Clear
X X L H
Preset
X X H L
X X H H
L L H
H H L
X Qn Qn No change