Joseph Industrial Equipment Co. Ltd C-503 Benutzerhandbuch
4
0 . 0 0 5 %
5 0 H z - 2 0 K H z
CHARGING INSTRUCTION
1.5V AA battery using.
Frequency stability:
Frequency response:
Frequency response:
S/N ratio: ＞100dB
T.H.D.: ＜0.5%
Working range: ＞40m
Working temperature: -10℃-50℃
Power supply: AC180-220V, 50/60Hz
Working temperature: -10℃-50℃
Power supply: AC180-220V, 50/60Hz
(The performance of the battery may limit the scope of work)
THE TRICK OF GETTING BEST
SOUND EFFECT
SOUND EFFECT
1.5V AA battery using.
TROUBLE SHOOTING
5
SPECIFICATION
Some common problems and their solutions are identified in the table
below. it you are unable to solve a problem, contact your dealer.
below. it you are unable to solve a problem, contact your dealer.
Problem
Solution
No sound; RF light(S) not glowing.
No sound; RF and Audio Level
meter lights glowing
meter lights glowing
Received signal is noisy or
contains extraneous sounds
with transmitter on.
contains extraneous sounds
with transmitter on.
Noise from receiver with
transmitter off .
Momentary loss of sound as
transmitter is moved arcound
performing area.
transmitter is moved arcound
performing area.
Make sure the transmitter and receiver
POWER switches are on.
Check battery.
Check battery.
Check receiver squelch setting.
Check receiver antenna connection(s).
Make aure antennas are in line of sight of
transmitter.
POWER switches are on.
Check battery.
Check battery.
Check receiver squelch setting.
Check receiver antenna connection(s).
Make aure antennas are in line of sight of
transmitter.
Turn up receiver audio VOLUME control.
Check for proper connection between
receiver and karaoke unit.
Talk into microphone and observe receiver
audio level lights. if they glow, the problem
is elsewhere in the sound system.
Check for proper connection between
receiver and karaoke unit.
Talk into microphone and observe receiver
audio level lights. if they glow, the problem
is elsewhere in the sound system.
Check battery.
Remove local source of therefore
interference, Regulate SQ.
If using a guitar or other instrument, check
connections.
Two transmitters may be operating on the
same frequency. Locate and turn one off.
Signal may be too weak. Reposition
antennas. If possible, move then closer to
transmitter.
Remove local source of therefore
interference, Regulate SQ.
If using a guitar or other instrument, check
connections.
Two transmitters may be operating on the
same frequency. Locate and turn one off.
Signal may be too weak. Reposition
antennas. If possible, move then closer to
transmitter.
Adjust receiver squelch control.
Remove local souroes of RF interference.
Reposition receiver or antennas.
Remove local souroes of RF interference.
Reposition receiver or antennas.
Reposition receiver and perform another
"walktrough" test and obserev the RF
indicators. if auido dropouts persist, mark
these "dead spots" in performing area and
avoid them during performance.
"walktrough" test and obserev the RF
indicators. if auido dropouts persist, mark
these "dead spots" in performing area and
avoid them during performance.
Don't open and repair it when some serious breakdown happens, please
contact with the seller or our company, we will help you whole heartfelt
thank you!
contact with the seller or our company, we will help you whole heartfelt
thank you!
Frequency: 902.2 - 927.8 MHz