NEW VU meter driver board TA7318P Dual channel Stereo module Upgraded version
NEW VU meter driver board TA7318P Dual channel Stereo module Upgraded version
Packing list:
1pcs high-precision VU meter
New VU meter driver board, the perfect alternative discontinued TA-7318P driver IC, drive the meter is better, hands swinging rapidly, responsive, and on the basis of the 7318 circuit output signal is further increased, the circuit can not be driven in the past 7318 driven header, add a wide range of new regulator circuit, more stable performance, the overall layout of the original follow the original classic design style, beautiful appearance, sophisticated and practical! And with the expansion of the circuit, increasing the PEAK indicator function! (Another Note: Due to individual unscrupulous businessmen often copied, rights protection considerations for the future, the Division produced circuit, all confidential treatment by the technology, please understand! Your "used" very light, we know we have to invested a lot of time, effort and money!)
Instructions for use:
1 signal input: driver board provides two input methods, according to your situation, choose one! (Hint: If the volume potentiometer back, or take amplifier output signal, the pointer swings will be controlled volume potentiometer, ie large volume pointer swing big, small volume is small then the pointer swings.)
A: LOW, GND, LOW: This is the driver board low signal input terminals for SPIDERS CD player, computer sound cards, before the class, and other audio equipment, audio signal wiring LOW, GND, LOW respectively: left, , the right channel can be.
(Driver board two potentiometers, you can adjust the size of swings hands, such as signal full open, the pointer swings failed to meet your expectations, you can drive panel R2, R3 resistor removed, R2, R3, is used to drive the board connected high input signal attenuation resistor to ground, and only in the use of high input will be used, because they were unable to determine your particular type of signal input, so finished the drive plate R2, R3, are welded, removed the resistor is much easier than welding up, after all, not everyone has the welding equipment, Oh, of course, which is a special case and, usually are not removed!)
B: HIGH, GND, HIGH: This is the driver board high signal input terminals for connections are amplified through the amplifier power signal, the drive plate-site attenuation circuit amplifier output will be high-intensity level attenuation and sent to driver IC, the attenuator circuit now contains just mentioned resistors R2 and R3, connecting the output terminal of the amplifier unit, the drive plate HIGH two terminals respectively connected to the amplifier terminals of the two red, two black terminal of amplifier , choose any one driver board connected to the GND terminal.
2 drive output:
V +, V-, terminal: This is the driver board for the table header backlight, backlight provides two 12V power supply output terminals, connectors, please note the matching table header source voltage, and the positive and negative direction.
+, -, Terminals: This is the driver board driver header output terminals respectively connected to the two-level table "+" "-" terminals connected to the positive and negative attention.
3 Power supply parameter:
Operating voltage: AC / DC 12-15V AC and DC wide range of operating voltages (recommended separate power transformers, power supply or a separate windings for!)
Rated power: 3W
4 PCB Size: 60 *39mm
5 Accessories: Header connector half a meter into two use.
Finished products have been energized aging test, press your chosen model header precise tuning!
