JVC UX-H33 Manuel D'instructions page 32

UX-H33
4.9 LA6541-X (IC801) : Servo driver
• Pin layout & Block diagram
Vcc Vref
24 23
11k
ohm
- +
11k
ohm
1 2
Vcc Mute
• Pin function
Pin No. Symbol
1 Vcc Power supply (Shorted to pin 24)
2 Mute All BTL amplifier outputs ON/OFF
3 Vin1 BTL AMP 1 input pin
4 Vg1 BTL AMP 1 input pin (For gain adjustment)
5 Vo1 BTL AMP 1 input pin (Non inverting side)
6 Vo2 BTL AMP 1 input pin (Inverting side)
7 Vo3 BTL AMP 2 input pin (Inverting side)
8 Vo4 BTL AMP 2 input pin (Non inverting side)
9 Vg2 BTL AMP 2 input pin (For gain adjustment)
10 Vin2 BTL AMP 2 input pin
11 Reg Out External transistor collector (PNP) connection. 5V power supply output
12 Reg In External transistor (PNP) base connection
13 Res Reset output
14 Cd Reset output delay time setting (Capacitor connected externally)
15 Vin3 BTL AMP 3 input pin
16 Vg3 BTL AMP 3 input pin (For gain adjustment)
17 Vo5 BTL AMP 3 output pin (Non inverting side)
18 Vo6 BTL AMP 3 output pin (Inverting side)
19 Vo7 BTL AMP 4 output pin (Inverting side)
20 Vo8 BTL AMP 4 output pin (Non inverting side)
21 Vg4 BTL AMP 4 output pin (For gain adjustment)
22 Vin4 BTL AMP 4 output pin
23 Vref Level shift circuit's reference voltage application
24 Vcc Power supply (Shorted to pin 1)
1-32 (No.22044)
Vin4 Vg4 Vo8 Vo7
22 21 20 19
Level
B T L
shift
driver
Level
B T L
shift
driver
3 4 5 6
Vin1 Vg1 Vo1 Vo2
Vo6
Gnd
18
Vcc
- +
7
Gnd
Vo3
Description
Vo5 Vg3 Vin3 Cd
15
17 16 14
11k
ohm
B T L
Level
driver
shift
B T L
Level
driver
shift
11k
ohm
8 9 10 11
Vo4 Vg2 Vin2 Reg
out
Res
13
RESET
Regulator
12
Reg
In