YouXing U-778 User Manual Download | Manualshive

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User manual

Model: U-778

Brand: YouXing ®

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Summary of Contents for U-778

Page 1: ...User manual Model U 778 Brand YouXing ...

Page 2: ...F PLL Synthesized Diversity System Before operating please read this instruction manual carefully and thoroughly in order to attain the correct operating procedures and achieve the best results Parts Name And Function Microphone ...

Page 3: ... working Push it the middle it is pause working 3 LCD manifestation You can see the channel show frequency show electricity measure the manifestation 4 Channel Selector 5 Ring with color Logo mark It is for distinguishing different microphones 6 A box for a battery 7 DC input 8 The charge indicator lamp ...

Page 4: ...ult 1 Turn on the receiver but the indicator is not lighted Make sure if the power cable is well fixed Is the socket in good condition Is the fuse blown 2 When you speak the AF light twinkles but no sound output Make sure if the volume keep in the lowest place or the audio cable is not fixed well 3 The effective signal receiving distance becomes close And signal receiving is not well Check whether...

Page 5: ...some serious breakdown happens Please connect the seller or our company we ll help you whole heartfelt Thank you 4 Specification 1 COMPREHENSIVE PERFORMANCE CARRIERFREQUENCY UHF627 19 682 49MHZ FREQUENCY STABILIZATION 30ppm DYNAMIC RANGE MORE THAN 90dB TOTAL HARMONIC DISTORTION LESS THAN 0 5 FREQUENCY RESPONSE 40HZ 15KHZ 3dB AUDIO OUTPUT LEVEL UNBALANCED OUT 0 400mV BALANCED OUT 0 200mV 2 FIXED RE...

Page 6: ...e FM F3F Max deviation 25KHz Spurious emission 40dB with carrier Battery voltage 1 5V battery Two AA batteries Noise control Perfectness circuit for eliminating noise 5 Matters Needing Attention 1 Avoid putting the main machine in a blind angle when it is used This is for keeping signal receiving in good condition 2 Don t throw fall toss cast the handling microphone when it is used in ...

Page 7: ...nstallation of antenna influences the operating efficiency of the receiver the most important rule is to minimized the distance between receiver antenna and microphone as short as possible for better reception and performance 2 The external DC power supply shoud not be below 12V otherwise it would not work properly If it is over 15V some components of the receiver will be damaged due to higher cur...

Page 8: ...h the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there...

Page 9: ... receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help The device has been evaluated to meet general RF exposure requirement The device can be used in portable exposure condition without restriction ...

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