JVC KD-SH9101 Service Manual page 38

QQ
3 7 63 1515 0
4.3 BA6956AN (IC981) : Reversible motor driver
• Pin layout & Block diagram
TSD
1 2 3 4
4.4 BD4833FVE-W (IC702) : Regulator
• Pin layout
TE
L 13942296513
V 1
OUT
SUB 2
N.C. 3
• Pin functions
Pin No Symbol
1 VOUT Reset output
2 SUB Sub slate (connect to GND)
3 N.C. Non connect
4 GND GND
5 VDD Power supply voltage
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CONTROL LOGIC
5 6 7 8 9
5 V
DD
4 GND
Function
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y
i
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8
• Pin function
Pin No. Symbol Function
1 VREF Output high voltage level control terminal
2 OUT2 Output terminal for motor
3 RNF GND of driver division
4 OUT1 Output terminal for motor
5 VM Power supply for driver division
6 Vcc Power supply for signal division
7 FIN Input terminal for control logic
8 GND GND
9 RIN Input terminal for control logic
• Truth table
FIN RIN OUT1 OUT2
H L H
L H L
H H L
L L OPEN OPEN Stand-by mode
• Block diagram
Q Q
3 6 7 1 3
Vref
u163
.
2 9 9 4 2 8
MODE
L Forward rotation mode
H Reverse rotation mode
L Break Mode
VDD
1 5 0 5 8 2 9 9 4
GND
m
co
9 9
2 8 9 9
VOUT