Features：Power supply: can be powered by computer USB
Use a separate power supply, 5V 6A (or more than 6A) power supply,
Main features of AS128 spectrum:
1. Using 32-bit high-speed ARM processor, the spectrum display is precise, accurate and beautiful, and can be used for frequency sweep test;
2. Two types of signal acquisition methods, electret microphone MIC and line input, adopt Jingsong core technology, the microphone collection effect and line input effect are very good;
3. With professional-grade AGC (automatic gain control), the audio has a wide adaptation range, which not only guarantees the accuracy and effect of the frequency spectrum, but also does not appear that the volume is too small to be displayed, and the volume is displayed at the full screen;
4. Up to 64 color mode combinations, set with power-down memory;
5. Added 10-level brightness adjustment, no need to worry about dazzling, you can adjust to a very soft brightness, set with power-off memory;
Instructions for use:
The control card can control 75 interfaces 32 * 64 points P4 P5 P6 full-color dot matrix module, the card supports up to 2 screen cascade, can also work on a single screen;
The connection sequence of the display screen is as shown in the figure below, pay attention to the direction of the display screen arrow, and connect the control card to the display cable to the left side of the input arrow;
The card can display 64 color mode combinations, the mode is adjusted by K1, the color is adjusted by K2, and the settings are all powered down memory;
The standard configuration of this spectrum is a 3.5mm headphone jack input. If your audio output is an RCA Lotus interface, please purchase a Lotus to 3.5 conversion cable;
In the case where the signal input port is floating, it is normal for the bottom of the spectrum to jump. Inserting the 3.5mm headphone plug into the headphone port will restore the bottom line;
The R1 and R2 potentiometers of the spectrum control card have been set to the best position in the factory. The user does not need to adjust it. If it is adjusted accidentally, please return to the middle position.
Product size: Single P4 screen length 32 * height 16 cm
Control card button instructions: (set with power-down memory)
K1 button (short press) ---- mode switch
K2 button (short press) ---- color switch
K1 button (press and hold) + K2 button (short press) Brightness plus
K2 button (press and hold) + K1 button (short press) brightness decrease
Instructions for use of the red DIP switch:
S1 is the voice control switch. The ON position is to turn on the voice control, and the OFF position is to turn off the voice control; S2 is the single and dual screen settings, and the ON position is the dual screen.
Package Included:
1XP5 full color screen
1x control card
1x signal cable
1x cable
