JVC UX-A52R Service Manual page 48

UX-A52R
GP1UM271XK (IC901) : Remocon
1. Block diagram
Amp
BU4094BCF-X (IC333) : Shift / Store registor
1. Pin layout
16 15 14 13
VDD OUTPUT Q5 Q6
ENABLE
STROVE DATA CLOCK Q1
1 2 3 4
LB1641 (IC703, IC704) : DC motor driver
1. Pin layout
1 2 3 4 5
GND OUT1 P1
VZ IN1
1-48
Limiter B.P.F
12 11 10 9
Q7 Q8 Q'S Q'S
Q2 Q3 Q4 Vss
5 6 7 8
2. Pin function
6 7 8 9 10
IN2 VCC1 VCC2 P2 OUT2
Com-
Demodu- Integrra-
para-
lator tor
tor
GND
2. Block diagram
2
DATA
8-STAGE
3
SHIFT REGISTER
CLOCK
1
8-BIT
STROBE
LATCHES
OUTPUT
15
3-STATE
ENABLE
OUTPUTS
Q1
PARALLEL OUTPUT
Input Output
IN1 IN2 OUT1
0 0 0
1 0 1
0 1 0
1 1 0
R
L
Vcc Vout
10
Q'S
SERIAL
9
OUTPUT
QS
Q8
Mode
OUT2
0
Brake
0 CLOCKWISE
1 COUNTER-CLOCKWISE
0
Brake