AK2515 VFD Music Audio Spectrum 15 Level Indicator VU Meter Screen for Amplifier

Specifications:
The input :DC5V
Display material: Glass
size: 176 * 50mm
Display size: 160x40 mm. ( excluding protruding tracheal parts )
Display area size: about 133x25 mm.
Thickness of the whole plate: about 20mm
( excluding the protruding pin part of the component and the thickness of the film )

Features：
? Dedicated VFD spectrum display, Resolution 25 X 15.
? 32HZ-16KHZ frequency sweep , Ensure the accuracy of each band.
? The falling speed of the light bar, the holding time and the falling speed of the peak can be adjusted separately.
? Real output and smooth output I/ smooth output II selection
? Clock brightness can be adjusted 3 levels.
? Extended function interface（Infrared, sound source selection, volume motor control, volume key, volume display, standby control）
? Accurate clock display function (This function is entered after 10 seconds without signal input and key operation）.
（SD2405AL built-in crystal oscillator, the can ensure that the clock accuracy is + 5ppm (at 25 + 1 degrees Celsius), the annual error is less than 2.5 minutes）
? Software AGC + custom output curve, In order to ensure that the input signal in a large range of output effect is ideal.
? Custom frequency band display to ensure that even the 25 segment, can fully display the audio frequency range.

Important notes：
1. Because of the working conditions of VFD, there is a high voltage of about 38V, so don't touch the VFD pins when it is working.
2. Because of the characteristics of VFD, long working brightness will be attenuated, so it will become uneven, is a normal phenomenon.
3. Because the clock module is selected parts, if there is no clock module installed, then the relevant clock function instructions are invalid.
4. When there is no clock function, no signal input and button operation, will enter standby state and display standby characters, in the external port closed setting , after 1 minutes it will close the filament supply and VFD high voltage. Enter deep standby status. Auto wakeup when there is a signal input or press button operation.
5. The light board can receive front-end audio signals, such as audio output ports of mobile phones, computers, CD, MP3 players, DVD and devices, and the input signal amplitude must be above 80 % of the audio devices and not controlled by the volume! Remember that it cannot be used to connect the output of the amplifier ( connected to the loudspeaker )!

Package included:
1× Audio Spectrum Board
2× Acrylic Board
1× 3.5mm audio cable
1× cable
1× 3.5mm 1-TO-2 Plug
1Set × Matching screws and pillars Specific operation: Normal mode: 1. Single UP?- Mode change DOWN?- Mode change OK?- Bottom line display or no in spectrum mode 2. Double- OK?- Switching real / smooth I/ smooth II output 3. Three- OK?- Menu effect switch, right -left transition / up - down transition / mid folding open 4. Four- OK?- Volume display function on or off 5. Five- OK?- Switch the extended port output level, high or low level 6. Composite key UP+DOWN?-2 Seconds A.（In the spectrum mode） The external ports are switched on or off?(including infrared interface, audio source?selection interface, volume motor control?interface, volume key interface, standby?control interface). B.（In the clock mode ） Switch the clock display effect. UP+DOWN+OK?-2 Seconds，Enter the screen self-?program, press the OK button 1?second to exit. UP+DOWN+OK?-5 Seconds，Enter infrared learning?function, press OK button to exit in 1?second UP+DOWN+OK?-10 Seconds，Infrared recovery?factory settings (the default is Tmall?infrared remote control). 7. Long press button UP - Clock mode（or standby mode）Brightness?increase (Note, if you need to increase to the brightest level, press for about 10 seconds, if the standby brightness is too high, it will cause uneven of VFD, the highest brightness level is not recommended). DOWN -Clock mode（or standby mode）Brightness?reduction
Speed setting mode:?(In normal mode, press the button for 2?seconds to enter, press the button for 2 seconds to exit) . OK a. The falling speed of the light bar (15 optional) b. The holding time of the peak (15 optional) . The falling speed of the peak (15 optional) d. Output selection (Real output / smooth I output/ smooth II output)?Loop in these functions. UP?- Time increases, Speed decreases DOWN?- Time decreases, Speed increase
Clock Setting mode?：(In normal mode, press the button for 5 seconds to enter, press the button for 2 seconds to exit) . Single OK - Switching hours / min / sec / year / month / day UP - Hours / minutes / sec / year / month / day increase. DOWN - Hours / min / sec / year / month / day decrease.
function operation： Factory default OK -10 Seconds.













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