Okayo GPA-680 User manual

Digital
GPA-680 Series
50W
Wireless Portable Bluetooth
Sound System
User Manual

Preface
Contents
Product mix
Illustration
Peripheral ............................................................................................... 3
Controls and operation ............................................................................. 4
Digital wireless receiver module DR-600................................................. 5-6
Digital audio player UM-502.................................................................... 7-8
Digital Handheld microphone EJ-601TM................................................... 9-11
Digital Pendant/Bodypack transmitter EJ-6T........................................... 12-14
Troubleshooting ........................................................................................15
Maintenance........................................................................................16-17
Specifications .................................................................................. 18-19
Memo..................................................................................................20-21
.............................................................................................. 1
............................................................................................... 2
Thank you for the purchase of Digital Wireless Portable Bluetooth Sound System
GPA-680.
This manual provides comprehensive instructions and operations. Please read it
over before your operation on the unit.
All peripheral and accessories are subject to order. Components in the package
might be different by demand.
,

GPA-680
Product Mix
Portable Powered Speaker
GPA-680D1
Wireless Portable Sound Systems
1 receiver built-in
,
GPA-680D2
Wireless Portable Sound Systems
2 receivers built-in
,
GPA-680DU GPA-680U
Wireless Portable Sound Systems
1 receiver and 1 audio player built-in
, Portable Powered Speaker
1 audio player built-in
,

Illustration
5. Controls, battery meter, mic in
6. Power switch
7. DC input
8. Battery door
1. Tweeter (1”)
2. Neodymium driver (5”)
3. Receiver DR-600
4. Digital audio player UM-502
Battery replacement
3
4
8
5
6
7
2
1
Get screws off Take battery out Get connection right –
RED for Anode;
BLACK for Cathode
Lithium battery

固定方式與搭配說明
CB-650 ST-35
Peripheral
Tripod set up (optional)

1. Master
2. Treble
3. Bass
4. Battery meter
5. Voice priority :
when it is activated, an
indicator (6) will light up.
6. Voice priority indicator
7. Bluetooth(indicator)
8. Aux in / Bluetooth control
9. Aux in, 3.5 mm
10. Aux out, 3.5mm
11. Mic (wired) in control
12. Mic in, 6.5mm XLR jack
Controls and Operation
AUX
1 2 34
5678910 11 12
Bluetooth
1.Press (7) for 2 seconds to switch Bluetooth on/off.
2.You will hear a tone and the indicator will light blue. The indicator will also
flash blue to indicate that it is ready to pair with Bluetooth device.
3.When it's in pairing mode, activate a Bluetooth connection scan on your
smartphone or tablet device. When the search is completed, select a device
named “Portable PA” from the pairing list and get it connected.
4.When the devices successfully paired, it will sound a prompt tone again.
The indicator will light steady blue.
5.You are now ready to stream audio via the Bluetooth connection from your
smartphone or tablet as it's connected.
6.If a phone call is incoming during playback, the audio stream will be interrupted
for the user to take the call. When the call is finished, the Bluetooth module will
be relinked automatically and audio files will recommence playback from where
they were interrupted.
7.When a user moves out of range for the Bluetooth connection, the audio stream
will be severed until the user returns to a location within range of the module.
8.When Bluetooth is switched off, you will hear a prompt tone again.

SET
DIGITAL
CH.A CH.B
15
4
3
2
B
A
Digital wireless receiver module DR-600
1. LCD display
(channel number/
signal strength/
Channel battery meter)A
2. volumeChannel A
3. Channel selection
4. Set key
5. Channel B volume
Operation
Power on and Off
1. Receiver module powers on along with the PA LCD displays On and after
to 2 seconds, screen displays channel number.
, , 1
2. Receiver module powers off along with the PA, LCD displays Off, after 2 to 3
seconds the display shuts off.
Channel changing
1. Hold on to SET key to enter channel changing mode, once the channel number on
the display starts to flash, you may use the up and down key to select channel.
2. After confirming the channel, press SET key again, or it also auto confirms
without pressing any keys within 10 seconds.
Operating range Hi/Low setting
1. In off mode, press SET key and power on the PA to enter the setting mode.
2. Now the screen flashes Hi or Lo, press up or down key to switch in between.
3. Press SET key again to confirm, or it also auto confirms without pressing any
keys within 5 seconds.

a. When both microphones are set as Master:
b. When the microphones are assigned as Master and Slave:
Digital wireless receiver module DR-600
Setting channel synchronization
1. First powered on microphone will be set as channel A, and the second is
channel B.
2. When channel A microphone shuts off or out of signal for more than 5
seconds, B channel microphone auto switches to channel A.
3. Both channels A and B need to be within the range of meters when
power on.
15
1. Preset Master microphone will be identifying as channel A and the slave
will be channel B.
,
2. When channel A microphone shuts off or out of signal for more than 5
seconds, B channel microphone auto shuts off.
3. Only when microphone is set to salve and push to talk mode, the
synchronization is at full range. The other modes are set within 15 meters.

88 88 88
: :
888 888
SD USB
FOLDER
10
9
7 8
6
5
4
3
2
1
11 12
13
14
4. When both SD card and USB are installed, USB has higher priority to be readout.
5. Do not pull SD card out directly or it might be damaged. Just push it a bit forward
and it will be ejected.
3. Press (5) to Play or to Pause any audio track.
2. Press (2) to play previous audio track; press (3) to play next audio track. Press
(4) to stop any playback.
1. Press and hold (10) for 1 second to turn this player on. Press and hold (10) for 1
second to turn it off.
Operation
1. LCD window
2. Previous track / volume down
(works during playback)
3. Next track / volume up
(works during playback)
4. Stop
5. Play / Pause
6. SD/MMC port
7. USB port
8. Sensor
9. Repeat / Folder select
10. Power
11. Volume down (MUTE when in minimum level)
13. Volume up
13. Mute
14. Folder select
Digital Audio Player UM-502

6. Repeat / Folder Select:
a. There are 3 modes for repeat during audio playback.
To repeat a track.
To repeat all tracks in all album.
To repeat all tracks in a single album.
b. When not in playback, press (9) to select a desired folder/album with NEXT,
PREV buttons. Finally press PLAY to end the setting.
7. During playback, press VOL+ to increase volume; press VOL- to decrease volume.
Digital Audio Player UM-502

A
12345
611
10
9
8
7
1. Mesh head
2. Handheld tube
3. Power indicator
4. Power button
5. LCD display
6. setup wheel
(Press to set, scroll up and down to adjust)
7. Talk/Mute button
8. Battery holder
9. Battery door
10. Master/Slave mode switch
11. Charging contacts
Insert battery
Open battery door and insert 2 AA 1.2 V (Ni-MH 1600mAh)
or 2 AA 1.5 V Alkaline batteries. Make sure the batteries are
allocated in correct direction.
Digital handheld microphone EJ-601TM

Under Talk mode:" ”
Under mode:"Push”
Handheld method
Digital handheld microphone EJ-601TM
Do not block bottom signal source.
Operation and Setup
Power On
Insert battery and press power button to turn on, power indicator (3) lights on.
Blue light means battery power is sufficient and red means insufficient.
Press setup wheel (6) then scroll up or down to adjust volume.
Green microphone icon - Talk Red microphone icon Mute ; -
Green microphone icon - Talk Flashing red microphone icon Mute; -
Volume adjustment
Master/Slave mode setup
When set to Slave mode, the default channel will be B CH, and it will
always stay in B CH.
After battery is taken off, you can see master/slave mode switch(10).
When set to Master mode, the default channel will be A CH, when A CH is
occupied, the channel will switch to B CH
Push Talk mode
1. Press mute (7) to talk.
2. Let go mute (7) to mute.
3. It does not support more than 3 microphones.

Power Off
Charging
Channel synchronization
HDC- 502 CHARG ER
HDC-502 HDC-503
Hold on to power key (4) for more than seconds to shut off. 2
You may charge the microphone with rechargeable
batteries by HDC-502/503(purchase separately).
The microphone will automatically sync when powered on.
When syncing successfully, mute key lights in blue and channel number shows.
If syncing failed, then mute key lights in red and no channel number display.
When microphone is set to slave mode:
Requires within 15 meters.
If idle more than 30mins, then microphones shuts off.
1. B CH only functions when A CH exists
2. When A CH is in use, you will not be able to talk
3. When A CH gets shut down, B CH also automatically shuts down.
.
.
CAUTION!!
Take out batteries when the devices won’t be operated in a long time.
DO NOT attempt to charge Alkaline battery. It will lead to battery
leakage or even explosion!
Digital handheld microphone EJ-601TM

6
7
5. Charging indicator
6. Neck strap hole
7. DC input
8. Strap hole
9. Belt clip
10. Mic in
11. AUX in
12. Charging terminal
10 11
8
9
12
1
2
3
4
5
1. Power/Mute switch
2. Volume control
3. LCD window
4. Mesh Head
Operation and Setup
Power ON
1. Press power key (1) to power on.
2. Once powered on, the channel selection blinks and standby for pairing.
Once paired successfully, battery meter, channel number and Ch A or Ch B
display on the screen
. .
.
3.
shuts off.
When the device idle more than 30 minutes without paring, the device
Digital pendant/bodypack Transmitter EJ-6T

Mute / Talk switch
Channel synchronization
Power OFF
1. Press and hold for two seconds to turn the device off.
2. OFF display on screen and all indicators turned off.
Charging mode
1. LED lights red when charging.
2. LED lights green when battery is fully charged.
3. When device is slot into a charger stand, will off the power.
4. Battery error: LED status lights red and flashes when charging,
LCD battery symbol lights flashes, and it caused by:
(1)The battery charge temperature is exceeded 60 C.
(2)The duration of charging time for charger stand is exceeded
seven hours.
(3)The battery is defected.
o
1. Press Mute switch (1) to switch between mute and talk mode.
2. Talk mode lights in blue and mute mode lights in red.
The pendant microphone will automatically sync when powered on.
When syncing successfully, mute key lights in blue and channel number shows.
If syncing failed, then mute key lights in red and no channel number display.
When microphone is set to slave mode:
1. B CH only functions when A CH exists.
2. When A CH is in use, you will not be able to talk.
3. When A CH gets shut down, B CH also automatically shuts down.
Requires within 15 meters
If idle more than 30mins, then microphones shut off.
Digital pendant/bodypack Transmitter EJ-6T
Master/Slave mode
1. When the device is turned off, press SET key (2) then power key (1) to enter
set up mode.
2. When the screen blinks with Master or Slave press or o
switch mode.
“ ” “ ”, (2) t
3. Press SET (2) to confirm and exit or it auto confirms within 5 seconds.

LCD screen will display current used volume level when press or
(VOL. 1 ~ 3).
Press and then press power key to power on to enter RESET mode. (2) (1)
The default value is Volume 2, and Master/Slave does not affect by RESET mode.
Volume switch
Reset
Method to install neck strap
The best distance is 10 CM between pendant microphone and user s chin.’
Digital pendant/bodypack Transmitter EJ-6T
CAUTION!!
To maintain battery life, please charge fully after use every time,
or every 3 months.
If battery require replacement, please pass to
to do so.
professional technician

Caution
DO NOT operate the device in the rain or in humid circumstance to prevent failure.
Prevent the device from dropping.
Apply factory recommended power supply to this system only. It is dangerous
and risky when employing a not qualified power.
Troubleshooting
Failed to Power On
Be sure batteries are allocated and put in correct direction.
Be sure power adapter is plugged well.
No Sound Output
Be sure transmitter and receiver stay at same channel.
Be sure volume control on transmitter and receiver are turned properly.
Be sure Master is turned properly.
Be sure Mute button is not on.
Check if transmitter and receiver stay at same frequency band.
Check if there is huge air interference nearby.

Maintenance
DO NOT put the unit in the sunshine for a long time, or any other hot, humid
environments or places with flame. Stay away from any occasions where
situation mentioned above might occur. Store the unit in general indoor
temperature or in cool circumstance.
Avoid heat, humidity
Charge BEFORE you start using for the fist time
After unpacking the unit for the first time, please charge the unit for about
8 hours. This is absolutely necessary as the built-in rechargeable battery
might have been discharged naturally due to long transportation and storage
time, even though it has been fully charged in the factory prior to shipment.
To secure a longer life for battery, please MUST execute this IMPORTANT
process.
Charge fully
Ensure battery is fully charged BEFORE you store the unit. To remain a longer
battery life and better performance, make sure you charge the battery
regularly every month.
When you need to use the unit again after a long period of stogare,make
sure you charge if fully for at least 8 hours BEFORE any operation.
Please also charge this unit every time right after operation to secure a
longer battery life.
This unit has DOD (depth of discharge) protection design. When Power
Switch LED flashes red - which means there isn’t enough electricity (when
operating via the battery’s power - this unit will turn off automatically in
a short time secure battery from deep-discharging damage. At this moment
please immediately recharge your unit, do not continue with operation.
This unit has protection circuit against overcharge. The circuit will stop charging
when battery is fully charged even power cord is plugged.
Useful hint: You can still operate during charging.
Replacing battery
Make sure the substitute battery is in compliance with qualified specifications.
Using incorrect battery may lead to explosion or malfunction.

Maintenance Specifications
Remove battery from when you won't
use it for a long while.
handheld microphone
Charging contacts
Clean charging contacts regularly to ensure good connection with charger.
When any corrosion occurs, contact your dealer to change it if you can't
repair it.
Notice: The changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
FCC INFORMATION
The Federal Communication Commission Radio Frequency Interference Statement includes the following paragraph:
-- 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 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 instruction, may cause harmful interference to radio communication.
However, there is no grantee that interference will not occur in a particular installation. If this equipment dose 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:
IMPORTANT NOTE: To comply with the FCC RF exposure compliance requirements, no change to the antenna
or the device is permitted. Any change to the antenna or the device could result in the device exceeding the
RF exposure requirements and void user's authority to operate the device.
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.

Digital Wireless Portable Bluetooth Sound System GPA-680
Wireless digital receiver module DR-600
Output power
Speaker
Digital audio player
Receiver
Running time
Battery meter
5” Neo driver, 1” tweeter
supports USB disk and SD card (optional)
plug-in receiver with ACS (Auto Channel Synchronization),
supports 2 receivers maximum.
Audio input
Audio output
Controls
Power supply
Battery
Charging time
mic in (combo jack); aux in (stereo mixed, 3.5 mm)
aux out (stereo mixed, 3.5 mm)
Master, Tone, Mic, Aux in
AC switching power adapter 100 ～ 240 V, 20V/3.25A
Lithium rechargeable battery
8 ～ 12 hours (battery dependant)
4 ～ 6 hours (battery dependant)
50 W (Max) @ 4 Ω
Dimensions (DxWxH)
Weight
200 x 170 x 276 mm
3.3 kg (Lithium battery included)
FULL, 80%, 50%, 20%
Carrier frequency
Channels
LCD window
Channel adjustment
2.4 ～ 2.5 GHz
16
channel, frequency
Set up key, up and down key
※Specifications are subject to change
Amb ient tempe rat ure
-10 °C ～ +50 °C
T.H.D.
Pre-emphasis
Frequency response
Wireless coverage
< 1 %
50 μs
70 Hz ～ 18 kHz
< 30 meters
Specifications