Assembeld PGA2311U remote preamp board with VFD display
This is assembeld and tested board
The more the night more beautiful VFD screen, make the night music even more charming!!!
VFD is the shorthand of "Vacuum Fluorescent Display", which works similar to the vacuum tube. The feature of the screen is no backlight, the screen itself does not light, emitting only need to show character, between green and blue, very beautiful!!!
Control board PCB Size: 168MM * 37MM
Main Board PCB Size: 177MM * 59MM
works voltage: AC12V (transformer about 10W is ok)
Product Description:
Full function infrared remote control system
VFD display vacuum status display
US BB company PGA2311U control chip
4 way stereo input selector, remote control. Can be operated manually
-96DB- + 31.5DB volume remote control. Can be operated manually (with 0DB lock)
Using a 24c02 use to store data in order to avoid setting off loss
Remote control switch with signal output, can drive a large current relay for the machine to do the remote control power switch
Coding switch operation method
Left rotary ：volume -
Right rotary ：Volume +
Short press ： choose input
Press three seconds: off
Short press when standby: ON
P6 port: When open, the system works in a pure way potentiometer maximum 0DB no gain.
when Short circuit, the system is turned 0DB-31.5DB zoom function
P4 port: When open, the memory performance when turned on again after each power-off, read off the last data, including volume value, the current channel.
When Short circuit, the memory function is off the boot volume for each performance value = -46DB channel value = CH-1
P1 port: This port can add six buttons for control the volume / mute/input choose
package ：
1pcx
Assembeld PGA2311U remote preamp board with VFD display 4 ways input DIY