JVC KS-FX621 Service Manual page 28

KS-FX621
QQ
3 7 63 1515 0
4.7 RPM6938-SV4 (IC652) : Remote sensor
• Pin diagram
• Block diagram
I/V
conversion
4.8 LB1641 (IC402) : DC motor driver
• Pin layout
TE
L 13942296513
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1-28 (No.49825)
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1 2 3
AMP
BPF
PD
fo
trimming
circuit
magnetic shield
GND 1
OUT1 2
P1 3
VZ 4
IN1 5
IN2 6
VCC1 7
VCC2 8
P2 9
OUT2 10
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. i
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AGC
Comp
Detector
• Truth table
Q Q
3 6 7
Input
IN1 IN2
0 0
1 0
0 1
1 1
u163
y
2 9 9 4
8
Vcc
22k
1 3 1 5 0 5 8 2 9
Output
OUT1 OUT2
0 0
1 0 CLOCKWISE
0 1 COUNTER-CLOCKWISE
0 0
m
co
.
2 8
9 9
Vcc
Rout
GND
9 4 2 8 9 9
Mode
Brake
Brake