Skytec ST-090 Instruction Manual

PORTABLE WIRELESS AMPLIFIER USD/SD/VHF

ST-090

(170.070)

Instruction Manual

V1.1

Gebruiksaanwijzing

Gebrauchsanleitung

GB ST-090

Congratulations on the purchase of this SkyTec Portable wireless amplifier.
Please read this manual carefully prior to using the unit.

Warning:

- Read the manual prior to using the unit.

- Keep the manual for future reference.

- Keep the packaging for safer transport in its original packaging

- Prior to the first use, have the unit checked by a qualified person.

- The unit contains voltage carrying parts. DO NOT open the unit.

- Never plug or unplug the unit with wet hands.

- If the plug and/or mains lead are damaged, they need to be repaired by a qualified
technician. Never place the device on an unstable / moveable surface and make sure it is
transported securely.

- If the unit is damaged to an extent that you can see internal parts, do not plug the unit
into a mains outlet.

- Repairs have to be carried out by a qualified technician.

- Only connect this unit to an earthed mains outlet of 220-240Vac/50Hz and 10-16A.

- Do no place the unit near heat sources.

- Don't pull the power cord while you pull out the plug. Hold the plug tightly to pull it out.

- Always unplug the unit during a thunderstorm or when it is not in use.

- If the unit has not been used for a longer period of time, condensation can occur inside
the housing. Please let the unit reach room temperature prior to use.

- To avoid accidents in public premises, the legal requirements must be fulfilled and
instructions/warnings must be adhered to.

- Keep out of the reach of children. Don’t leave the device unattended.

- All volume controls must be set to zero prior to switching the unit on.

- Do not use cleaning sprays for the slider controls. The residues of these spray cause
dust deposits in the controls. If a problem occurs, please consult a specialist.

- Do not clean the unit with chemical solutions. This might damage the finish. Only use a
dry cloth for cleaning.

- This unit is with speaker inside which can cause magnetic field. Keep this unit at least
60cm away from computer or TV.

- This unit is with built-in lead-acid rechargeable battery. Please recharge the battery every
3 months if you are not going to use the unit for a long period of time. Or the battery may
be damaged.

- If the battery is damaged please replace with same specifications battery. And dispose
the damaged battery environment friendly.

- Don't expose the device to high temperatures.

- Don't place the device in the environment of humidity and dirt’s. Avoid ingress of water
into the enclosure.

- Place the device in the ventilated environment.

- Pull out the AC power if you will not use the device for a long time, alike the VHF
microphone batteries and store for later use

Features:

 Power supply : 220-240Vac/50Hz or 12Vdc/7Ah battery
 Built-in VHF Microphone system, amplifier, MP3 Player and rechargeable battery
 3.5mm AUX-in for connection to a computer/MP3 player etc.
 USB port and SD/MMC card slot
 One channel wireless microphone
 Volume, echo, microphone and Line controls, suitable for karaoke
 Telescopic handle and wheels
 Mic Echo and EQ
 Mic priority

Control panel :

1. Audiosignal indicator

2. Equalizer

3. Repeat track

4. Previous track

5. LED Display

6. Play/Pause

7. Next track

8. Remote control receiver

9. Audiosignal indicator

10. Battery charge indicator

11. Low voltage indicator

12. Mic.signal indicator

13. Wired mic volume

14. Music volume

15. Wireless mic-volume

16. Signal input selector

18. Mic priority ON/OFF

19. Microphone Tone

20. Music Treble

21. Microphone Echo

22. Music Bass

23. External battery jack
(check polarity)

24. AC power input

25. Wired mic input

26. SD/MMC card input

27. USB Port

28. MP3 AUX 3.5mm input

29. Audio RCA in/output

30. Power switch

Remote Control :

Note : Turn off the unit power switch will allow the battery to be charged more quickly !
Howling sound : If this feedback occurs try first to turn down the treble control; if the feedback is

still present turn the volume control down.

OPERATION OF WIRELESS TRANSMITTER
Handheld MIC

Unscrew the battery compartment cover end cap (4) end remove, exposing the
battery compartment. Insert a fresh 9V battery, observing polarity. Re-attach
the battery cover. Turn on the microphone by sliding the power switch (3) to ON
position. The battery LED indicator (2) will light green, indicating full battery
strength. In the case of a low or dead battery, the battery LED will extinguish,
indicating that the battery should be replaced with a fresh one. The IR indicator
in the amplifier should now be it. To preserve battery life, turn the microphone
off when not in use. If you are not going to use the microphone for a long period
of time, take out the battery from microphone to avoid possible battery leakage
to damage the microphone.

OPERATION OF WIRELESS RECEIVER

This unit contains a channel built-in high quality quartz-locked, fixed frequency VHF wireless
receiver precisely matched to the transmitter supplied. After the amplifier has been turned on by
the main power switch, turn microphone volume control clockwise slightly. Switch on the
wireless microphone and the IR receiving indicator will light up indicating normal reception.

1. Power button

2. Play/Pause button

3. Equalizer button. Modes are :
Natural, Rock, Pop, Classic, Sofe,
Jazz, DBB, SRS Wow

4. Stops the music

5. Mute : No sound volume

6. Previous track

7. Next track

8. Volume decrease

9. Volume increase

10. Repeat track(s):
Press one time for one time repeat all
Press twice for random play
Press three times for repeat one
Press four times for repeat all

11. USB/SD selector

12. Number keys for desired tracks

OPERATION OF MP3 PLAYER

 Press MP3/AUX button to enter the MP3 Mode.
 Insert flash drive into USB port or SD/MMC card into D/MMC card slot, it will play the

music in flash drive or M/MMC card automatically. Mp3 play indicator will light.

 Press PREV button to go to last track. Press and hold the button to fast backward.
 Press NEXT button to go to next track, Press and hold the button to fast forward.
 Press PLAY/PAUSE button to pause playing.
 Press REPEAT button repeatedly to select REPEAT ONE or REPEAT ALL. REPEAT

ONE or REPEAT ALL indicator will light.

OPERATION OF OTHER SOUND SOURCE

Connect other sound source such as CD player to LINE input jack to amplify the sound.
NOTE: MP3 and line input volume can be adjusted through MUSIC volume control. Adjust

MUSIC bass, treble controls of the amplifier to a comfortable listening level as desired.

Microphone priority

Pls press the microphone priority switch to ON. When you speak through the microphone the
music volume will automatically be lower.

SPECIFICATIONS

AMPLIFIER

Speaker: ................................................ 1×12” full range speaker

................................................................. High sensitive tweeter

Output Power: ............................................................ 250W max

Frequency Response: ............................................. 50Hz~18kHz

S/N ratio: ........................................................................... >60dB

Power Supply: ......................... 220-240VAC/50Hz or DC-in 12V

....................................... Built-in rechargeable battery 12V / 7Ah

Battery charging time: ............................................... 8~10 hours

Battery working time: .................................................. 3~5 hours

Frequency Range: .................................................. 200.175MHZ

Operating Range: .................................. 50M(line and sight area)

TRANSMITTER

Frequency Range: .................................................. 200.175MHz

Dynamic Range: ................................................................. 80dB

Frequency Response: ............................................. 50Hz~10kHz

Working Temperature: ............................................. -10°C~45°C

Power Supply: ............................................................. 9V battery

This appliance should not be put into the domestic garbage at the end of its useful life, but must
be disposed of at a central point for recycling of electric and electronic domestic appliances. This
symbol on appliance, instruction manual and packaging puts your attention to this important

issue. The materials used in this appliance can be recycled. By recycling used domestic
appliances you contribute an important push to the protection of our environment. Ask your local
authorities for information regarding the point of recollection.