JVC MX-DVA5 Service Manual page 26

MX-DVA5
Description of major ICs
74HCU04 (VIC6) : Optical
1.Pin layout
1A 1 14 Vcc
1Y 2 13 6A
2A 3 12 6Y
04U
2Y 4 11 5A
3A 5 10 5Y
3Y 6 9 4A
GND 7 8 4Y
BA4560 (AIC1, AIC2, AIC2, AIC4, AIC5, AIC6, AIC7, FIC4, FIC5, HIC1, JIC3) : Op. amp.
1.Pin layout
OUT1 1
– IN1 2
1ch
– +
2ch
+ IN1 3
+
–
V 4
EE
FAN8082 (DIC3,DIC3) : DC motor driver
1.Pin layout
GND 1
V
O1
2
V
CTL
3
V
IN1
4
3. Pin function
Pin Number Pin Name
1
2
3
4
5
6
7
8
1-26
8 V
CC
7 OUT2
6 – IN2
5 + IN2
FAN8082
I/O
GND - Ground
V O Output 1
O1
V I Motor speed control
CTL
V I Input 1
IN1
V I Input 2
IN2
SV - Supply voltage (Signal)
CC
PV - Supply voltage (Power)
CC
V O Output 2
O2
2. Block diagram
1
GND
8 V
O2
V
O1
2
7 PV
CC
V
CTL
3
6
SV
CC
V
IN1
V
5
IN2 4
Pin Function Description
DRIVER OUT
8
7
PRE DRIVER
6
BIAS
TSD
LOGIC SWITCH
5
V
O2
PV
CC
SV
CC
V
IN2