SUI CHENG V20 VHF Wireless Microphone Instruction Manual
- June 17, 2024
- SUI CHENG
Table of Contents
VHF WIRELESS MICROPHONE
SYSTEM
Operating Instructions
Thank you for buying this VHF WIRELESS MICROPHONE SYSTEM product. Please read through These operation instructions so you will know how to operate your model properly. After you have finished reading the instructions, put them away in a safe place of future reference.
WARNING
- To prevent fire or shock hazard, do not expose the unit to rain or moisture.
- To avoid electrial shock, do not oper the cabinet.
- Refer serviving to qualified personnel only.
PRECAUTIONS
- Do not drop or give any physical shocks to the wireless microphone.
**Do not use the system where it may be subjected to.
- direct or indirect sunlight.
- excessive heat from radiators or other heat sources.
- excessive dust or humidity.
- Mechanical or other vibrations.
Should any liquid or foreign object fall into the unit, disconnect the unit
from the power source and have it checked by qualified personnel before
operating it any father.
*If you have any questions or problems concerning this system which are not
covered in this manual, please consult the nearest out company.
Be sure to Bing the cordless microphone and the receiver(the whole system) to out company when requiring repair work.
Troubleshooting Guide
| Problem | Cause | Solution |
|---|---|---|
| The BROADCASTING Indicator does not up. | The cordless microphone is not turned | |
| on. | Turn on the curdler microphone. | |
| The microphone receiver is not turned on. | Turn on the microphone receiver and |
the connected AV equipment.
The microphone receiver is not connected properly.| See the “connectionein
this manual and correct the connections.
No Sound| The battery In the cordless microphone is week| Replace the battery.
The microphone receiver is not turned on.| Turn on the microphone receiver and
the connected AV equipment.
The connected AV equipment is not turned on.| Turn up the AV equipment.
The connected AV equipment is turned down.| Turn up the volume of the AV
equipment.
The speakers/headphones are not connected to the AV equipment.| Connect the
speakers/headphones.
The sound is distorted.| The battery In the cordless microphone is weak.|
Replace the battery.
The AUDIO OUT selector switch on the receiver is not set correctly.| See the
“parts identification” In this manual and set it correctly.
A hawing noise is heard from the speakers| The distance between the cordless
microphone anted speakers are too close.| Move the cordless microphone away
from the speakers of change the direction of the microphone.
A loud hissing noise is heard from the speakers.| The battery in the cordless
microphone
is weak.| Replace the battery.
If the above mentioned suggestions do not improve the situation, consult your out company.
SPECIFICATIONS:
OVERALL SYSTEM| Carrier Frequency Range
Frequency Stability
Modulation Mode
Maximum Deviation Range
Frequency Response
S/N Ratio
T.H.D
Audio Dynamic Range
Service Areas| 658.8MHz
+/-0.005°/o with quartz controlled.
FM
+/-15KHz,with Limiting comperssor.
40Hz to 20KHz.
Better than 100dB.(A)
Less than 0.5%
Over 100dB .Over 118dB with Limiting
30 meters.
---|---|---
RECEIVER| Receiving System
S/N Ratio
Image and Spurious Rejection
Power Supply| Dual channels fixed frequency by quartz.
Over 108dB at 15KHz deviation.
80dB minimun
DC5V
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with 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 is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and 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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