Assembled CS3310 Remote Preamp Board VFD Display 4-way Input HIFI Preamplifier

Description

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
Product Details:
Control board PCB Size: 168MM * 37MM
Main Board PCB Size: 177MM * 59MM
Works voltage: AC12V  (transformer about 10W is ok)
Full function infrared remote control system
VFD display vacuum status display
Using CS3310 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 include:
Assembled Main board   X1
Assembeld control (display) board   X1
Two board Connecet wires   X1
Remote   X1 ( no battery )