Popularization of knowledge:
VFD is the abbreviation of Vacuum Fluorescent Display, which means vacuum fluorescent display. Its working mode is similar to that of electronic tube. This screen features no backlight, the screen itself does not emit light, only the characters to be displayed are illuminated, between green and blue. ,very beautiful
Product introduction:
1. Full-featured infrared remote control system, volume control can be realized by remote control, 4-way switching selection, MUTE mute, power switch control
2.VFD vacuum display screen system information display, including boot welcome interface volume value channel value mute logo, etc.
3. Original crystal CS3310 sound control chip, the chip used by foreign famous machines.
4.4 stereo input selection, remote control, manual operation
5.-96DB-+31.5DB volume control Remote control. Manual operation (with 0DB lock)
6. Use a 24c02 to store data to avoid losing settings when shutting down
7. With remote control signal output of the switch. (You can connect a dedicated switch board as a power switch control for the rear stage power amplifier section)
8. Dedicated volume potentiometer CS3310. The chip is used by many famous top audio manufacturers because of its excellent specifications. JEFF-ROLLAD uses the CS3310 for volume control in its best-in-class combined or split power amplifier.
Introduction to CS3310
The CS3310 is an all-digitally controlled stereo volume potentiometer that uses a 16-bit serial control interface to control the gain of two independent channels. The gain control range is -95.5dB to +31.5dB, which is the 127dB volume adjustment range. The accuracy is 0.5dB, and the controlled two-channel gain amplifier combines an input-stage resistance attenuation network with a variable gain transconductance amplifier to achieve excellent dynamic and high signal-to-noise ratio.
New upgrade top ten features
1 The vacuum tube screen (VFD) is used to display the common LCD screen and LED digital tube screen.
2 display mode draws on the 27 screen display mode, high-end atmosphere, upper grade
3 Through the 360 ??degree code switch, you can control the volume. Source switch, power on, power off
4 Newly added debounce function When adding or subtracting volume, no garbled, adjust smoothing.
5 power control function (P2 port)
6 0DB lock function setting (P5 port) works in pure potentiometer mode
7 Memory function setting (P3 port)
8 The touch button control function (J1 port) can be extended to achieve volume +-, 4-way source switching, mute
9 Upgrade from the previous 3-way switch to 4-way switch
10 ordinary remote control upgrade to a more sensitive silicone key remote control
Instructions:
Multi-function code switch operation method (1 switch can realize the following 5 functions)
1 left turn is volume -
2 Right hand is volume +
3 Click once to switch the source
4 Press and hold for 3 seconds or more.
5 When you are in standby, press to turn it on.
P5 port introduction: When the circuit is open, the system works in the pure potentiometer mode. The maximum 0DB has no gain. Because foreign famous machines use this function frequently.
When short circuited, the system turns on the amplification function of 0DB-31.5DB.
P3 port introduction: When the circuit is open, the memory function is turned on. When the power is turned on and then turned on, the last shutdown data will be read, including the volume value. When the current channel is short-circuited, the memory function is turned off and the volume value is changed every time. 46DB channel value = CH-1
Introduction to J1 port: This port can be connected with 7 buttons to achieve volume level. Source switching Mute control
The wiring method after buying back is very simple: it can be used in just 3 steps.
1, connected to the transformer above 12V/5W
2, connect the sound source (CD, MP3, mobile phone...)
3. Connect the audio output cable to the input of the amplifier.
4, adjust the input selection channel, adjust the volume is OK.
Gift Description:
Blue acrylic filter. Adding this film will make the display more attractive Remove the sticker before use
The given knob is not guaranteed to be the same as the picture
30MM audio output cable is a special wire with shielding layer, with black and gray random delivery