DB POWER BM-148TX User manual

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BM-148 USER MANUAL
TABLE OF CONTENTS
Safety Precautions………………………………………………………………………………
Content and Features……………………………………………………………………………
Indication
LCD version : Main LCD Screen …………………………………………………………..
LED Indicator version: Color Index of Power Indicator………………………………..…
Battery Installation…………………………………………………..
Battery Charging…………………………………………………….
Testing Before First Time Usage………………………………………………………………..
Operations Procedures…………………………………………………………………………..
How to operate 2 way communication between Parents unit and Baby unit………………
Trouble Shooting………………………………………………………………………………….
Technical Specifications………………………………………………………………………….
Congratulations
You have just purchased a quality baby monitor. Please read the instructions thoroughly
before using the monitor system and keep it for future reference.
Safety Precautions
When using this unit, basic Safety Precautions should always be followed to reduce the
risk of fire, electric shock, or personal injury.
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on this unit or mentioned in this operation
instruction.
3. Do not use liquid or aerosol cleaners. Use a damp cloth for cleaning.
4. Do not use this unit near water such as bathtub, shower or pool. Immersion of this unit
in water could cause an electrical shock.
5. Place the unit securely on a stable surface. Serious damage and/or injury may result if
the unit falls.
6. Do not cover slots and openings on the unit. They are provided for ventilation and
protection against overheating.
7. Install the unit where no one can step or trip on the cord.
8. Never push any objects through slots in this unit. This may result in the risk of fire or
electric shock. Never spill any liquid on the unit.
9. To reduce the risk of electric shock, do not disassemble this unit. Take the unit to
authorized service center or qualified technician when service or repair work is required.
Opening or removing covers may expose you to dangerous voltages or other risks.
Incorrect reassembly can cause electric shock when the unit is subsequently used.
10. Do not expose the unit to extreme temperatures such as areas near a hot radiator or
stove or in a hot car.

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11. Do not place lighted objects such as candles, cigarettes on the unit.
Caution:
This product cannot replace responsible adult supervision.
zThis Baby Monitor is intended as an aid. Do not use it as a medical monitor or a
substitute for responsible and proper adult supervision.
zMake sure the Parents unit and adaptor cable are always out of child's reach. Do not
place the Baby Unit inside the baby's crib or playpen!
WARNING:
To prevent the risk of fire or electrical shock, do not expose this unit to rain or any type of
moisture.
Content and Features
LCD version:
LED Indicator version:
Baby unit :
Parents unit
A
C Adaptor
for Baby unit
A
C Adaptor
for Parents unit
Baby unit
Parents unit Baby unit

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LCD version
LED Indicator version
1a. LCD Display (for LCD version)
1b. Power Indicator : Red, Green and Orange (for LED Indicator version)
2. Microphone
3. Speaker
4. Belt Clip
5. Lock / Unlock key
6. Battery Compartment
7. Power and Volume Control
8. AC / DC Power Supply Sock
9. PAGE key
10. Music Play and Control
11. LINK key
Parents unit :
LCD version:
LED Indicator version:
1a
3
4
5
6
7
8
9
11
10
12
13
8
7
6
5
4
10
9
11
3
2
1b
1a
3
2
8
7
6
5
4
10
9
11

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1a. LCD display (for LCD version)
1b. Power Indicator : Red, Green and Orange (for LED Indicator version)
2. Sound Lights (only for LED Indicator version)
- One or two LEDs lighted up means shallow sound received.
- Three to five LEDs lighted up means louder sound received.
3. Microphone
4. Speaker
5. Belt Clip
6. Lock / Unlock key
7. Battery Compartment
8. Power and Volume Control
9. AC / DC Power Supply Sock
10.TALK key
11.PAGE key
12.Music Play and Control
13.LINK Key
Indication
LCD version : Main LCD Screen
LED Indicator version : Color Index of Power Indicator
“Baby calling” icon : constantly changing display
1b
2
3
4
5
6
7
8
9
11
10
12
13
Out of range alarm icon
Selected Music : 01-06 or AL
01-06 : Music 01- Music 06 . The selected song will be playing repeatedly.
AL : Play All music – Music is looped from 01 to 06 repeatedly.
Battery icon:
Full battery level
Low battery level, reminds you to change the batteries.
Empty and flashing, batteries change is a must.
“Baby sleeping” icon : (no signal and energy saving mode)

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Indication
Indicator Parent unit Baby unit
Red Light Power is good and no signal
Flashing Red Light Battery charging when the
unit is turned off Low power; Battery charging when the
unit is turned off
Flashing Red Light with
“Di Di” alert in every 3
seconds
Low power N/A
Flashing Red Light with
“Di” alert in every 1
second
Low power and Out of range N/A
Green Light Power is good and receiving
signal Power is good and transmitting signal
Flashing Green Light Battery charging and
receiving signal. Battery charging and transmitting the signal.
Flashing Green Light with
“Di” alert in every 1
second.
Battery charging when the
unit is turned on and out of
range
N/A
Orange Light Scanning the corresponding code for both units
AC Adaptor: The AC Adaptors are low voltage power source that allow you to
use your household electricity to run the Baby Monitor.
Connect the AC Adaptors to the AC Adaptor Jack in the Unit.
Both plug into any standard volt electrical outlet in your home.
It is recommended to turn off the units before plug in or unplug
the adaptors.
CAUTION: These adaptors were made with a specific design for
this product. They cannot be used with any other appliance. Never use a different type of
adaptor with this Baby Monitor.
Privacy Protection
Always remember that you are using public airwaves when you use the Wireless 2.4GHz
Digital Baby Monitor. Sound may be broadcasted to other receiving devices.
Conversations, even from rooms near the Baby unit, may be broadcast as well.
CAUTION: To protect your privacy, always turn the system off when not in use. It is
possible that the Parents unit may be interfered from other devices in the 2.4GHz
frequency range. To minimize this potential problem, more than 65000 ID code have been
provided for your use. If you experience interference while using one ID code setting,
simply select to another ID code.

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Battery Installation
Please charge the rechargeable batteries before first time usage.
1. Ensure the unit is off. Press the button on the belt clip and rotate it
clockwise or counterclockwise for 90º.
2. Open the battery compartment door.
3. Insert 3 * AAA batteries into the Baby unit and Parents unit according to
the +/- signs shown in the battery compartment, respectively.
4. Replace battery compartment door. Press and rotate the belt clip to its
normal position.
Battery Tips:
zIf the product is not in use for a long time, disconnect both units from the household
electrical outlet. And remove the batteries or the exhausted batteries from the units,
otherwise battery leakage and corrosion can damage them.
zDispose the batteries safely.
zNon-rechargeable battery is not to be recharged.
zRechargeable batteries are only to be charged under adult supervision.
zDanger of explosion if battery is incorrectly replaced. Replace only with the batteries of
the same and equivalent type(TSUEN SHING, BT-101-AC).
Battery Charging
If the battery level becomes low, the units will display the below :
Model Baby Unit Parent Unit
Power indicator lights and flashes Red light.
LED Indicator version No Alert sound Emits a alert tone (Di Di) in
every 3 seconds.
LCD Display version No Alert sound and empty
battery Emits a alert tone (Di Di) in every 3 seconds
In this case, user needs to recharge the supplied rechargeable batteries or change for
new alkaline AAA batteries.
Charging the batteries
The rechargeable batteries to the Baby unit and Parents unit must not be taken out of the
units for charging.
button
90º
Flashing

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1. Use only the AC adaptors which are included in the package, plug into any nearby
standard household electrical outlet.
2. Once connect them with the units, charging automatically begins.
3. The charging time for completely charging empty battery takes 12 hours when the unit
is turned off.
Charging and Fully charged Indication:
LED Indicator version LCD version
In charging
(Unit is turned on.) Flashing Green/Red light or
The battery icon loops and flashes.
In charging
(Unit is turned off.) Flashing Red light
The battery icon loops and flashes.
Fully charged
(Unit is turned on.) Red light or
The battery icon is full and stops
flashing.
Note:
zUser can also install 3 alkaline AAA batteries instead of the supplied re-chargeable
batteries.
zOr directly operated by the supplied adaptors.
Help protect the environment
Batteries with symbols shown opposite must not be disposed in general domestic waste.
Instead, take them to a collecting point for old batteries or special waste products(as your
local authority for details) or return them to the dealer you bought them from. They will
ensure batteries are disposed safely.
Testing Before First Time Usage
A. Test the Baby unit transmission and the Parents unit reception.
1. Place Baby unit and Parents unit in room where you intend to use it.
2. Set both Baby unit and Parents unit to the corresponding code by pressing the LINK
key at the bottom of the units for different ID code to ensure privacy.
There are more than 65000 ID codes user selection.
3. Turn on the units.

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-- The LCD displays standby status.(LCD version)
-- The power indicator lights and the power is on.(LED Indicator version)
NOTE:
For the first time usage, turn on both units, they can automatically scan the
corresponding code at once without press any key. If reset the corresponding code for
both units, user has to press the LINK key.
B. Baby unit emission:
1. Place Baby unit in room where you intend to use it.
2. Push the SENSITIVITY switch to a desired position to turn on the Baby unit
transmission.
3. As soon as the Baby unit transmits a signal, then:
LCD version LED Indicator version
LCDbacklightis
activated.
Constantly changing display-readouts
4. The transmitter is standby status when no signal is transmitted.
LCD version LED Indicator version
LCD backlight turned off.
C. Parents unit reception:
1. Place Parents unit in room where you intend to use it.
2. Slide the VOLUME switch to a desired position and the unit is ready for reception.
3. If the unit receives a signal,
LCD version LED Indicator version
constantly changing display-readouts
4. The receiver is standby status when no signal is received.
LCD version LED Indicator version
LCD backlight turned off.
When you experience interference (buzzing or static, etc.), reset both units to another
corresponding code. ( details please refer to P.11 – scan the corresponding code for the
units )
Green light Red light
Red light
G
r
een light
Red light

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IMPORTANT! Test sound reception before use and whenever location of Baby unit is
changed. (Refer to Testing Before First Time Usage)
Note:
* Position the Baby unit at least 1 meter away from the baby so that the microphone can
pick up the child's sound.
* Unwrap and fully extend power cord for best transmission if adaptor is used. Plug the
adaptor into the nearest standard household electrical outlet.
Operations Procedures
A. Power On / Off
1. Connect the Parents unit with theAC adaptor. Plug it into the nearby standard electrical
outlet or insert 3 AAA alkaline batteries.
2. Turn on at the right side upward of the unit, a click sound to be heard indicates
the unit is turned on.
3. Turn downward, a click sound indicates the unit is off.
B. Volume Adjustment
Rotate for adjusting the desired volume level.
1. Turning it upward for increasing volume level;
2. Turning it downward for decreasing volume level.
C. Talk to Baby unit (Only for Parents unit)
TALK key is located at the left side of the Parents unit.
1. Press and hold TALK key to talk to the Baby unit.
2. Release TALK key and return to the receiving status.
D. Music Playing & Select Music (optional)
Music play key is located at the left side of the unit. User can activate the
music play and/or select a desired music to lull the baby to sleep. There are six music for
selecting.
1. Press key for about 3seconds to activate the Music Playing function, and Music 1
will be played automatically.
2. Press key to change music(01-06 or AL), you can hear the demonstration of
different music. When you have selected the desired music, do not press key
again.
Note: Selected music will be shown on the top right corner of the LCD screen for LCD
version.
3. Press key for 2 seconds again to turn off the music playing function.
Remarks :
- Baby unit can play music solely when the Parents unit is turned off. But Music play

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function of Parents unit is not available for use when Baby unit is turned off.
- When pressing the TALK key of Parents unit to talk to Baby unit, the music will be
stopped playing.
- Music playing is not interrupted by call ring tone.
E. Sensitivity Level Adjustment (Only for Baby unit)
SENSITIVITY slide switch is located in the battery compartment. Adjust different
detecting sound level sensitivity by switching the SENSITIVITY switch to either Lo
( normal sensitivity : 1-2 meters) or Hi ( high sensitivity : 2-6 meters) position.
Remarks : The default setting of sensitivity level is Lo.
F. Call Function
Both units can make a call ring tone to call one another.
1. Press PAGE key at the left side of the Parents unit or Baby unit one time to call another
unit,.
2. Three “BiBi” sound will be heard from Baby unit.
3. Each press PAGE key once, you will hear three “Bi Bi” sound. If no press PAGE key
again, the call ring tone will end.
Remarks:
- When Baby unit call Parents unit, only the Parents unit can be heard three “Bi BI”
sound.
- When Parents unit call Baby unit, only the Baby unit can be heard three “Bi BI” sound.
G. Low Battery Alert
When the unit is in low power, the details please refer to page 6 “Battery Charging” .
Remarks:
-- No low battery alert for Baby unit.
-- No transmission while Baby unit is in low battery.
H. Out of Range Alert (Only for Parents unit)
When the connection between Parents and Baby unit is broken , e.g.
- One of the units is turned off;
- The Baby unit is in low battery;
- The units are detected out of communication range (300m)
LCD version LED Indicator version
ParentsUnit
with “Di Di Di” alart sound will be
heard in every 2 seconds
with “Di” alert sound will be
heard in every 1 second
Red light
Flashing

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Baby Unit
I. Key Lock / Unlock
1. Turn the right-hand key lock side switch to LOCK position of unit to lock
key. The TALK key, PAGE key and MUSIC key are not available for use.
2.Turnthesameswitch to UNLOCK position to unlock all the keys.
J. Belt Clip
The Baby unit and Parents unit can both be carried around using the belt clip provided on
the rear of each unit.
How to operate 2 way communication between Parents unit and Baby
unit
The Baby Phone yields high privacy and almost zero-interference to end users. There are
more than 65000 ID code for user selection with the LINK key positioned at the bottom of
the units.
NOTE:
Only scan the corresponding code for both units, they are able to connect to one
another.
Operating and Setup
A. Scan the Corresponding Code
1. Turn on both units. The Baby unit will emit a random ID code to Parents unit
automatically without pressing any key.
2. Once scanned the corresponding code, the units are ready for use.
The code is recorded even thought you turn off the units or recharge the batteries. Or
else the unit is not for use.
B. LINK key
LINK key is located at the bottom of the Parents unit and Baby unit. It is used for
eliminating the corresponding code recorded in the unit and reset a new corresponding
code for the Parents unit and Baby unit. The Parents unit / Baby unit can connect with
another Baby unit / Parents unit with the LINK key to scan a new corresponding code for
them.
1. Ensure both units are turned ON. Press the LINK key of the units with a spiky and
thin object (such as toothpick).
2. Both units begin to scan corresponding code
LCD version LED Indicator version
Red light
Flashing

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Parent unit:
with “Di Di Di” alert sound in every
2 seconds
Parent unit:
with “Di” alert sound in every 1
second
Scanning the
corresponding
code
automatically
Baby unit: Baby unit:
Scanned the
corresponding
code
successfully
Both units :
Normal status
Baby unit Parent unit
Parent unit:
with “Di Di Di” alart sound will be
heard in every 2 seconds
Parent unit:
with “Di” alert sound will be
heard in every 1 second
Scanned the
corresponding
code
unsuccessfully
Baby unit: Baby unit:
C. 2-Way Communication
Usually, the detected sound is transmitted from the Baby unit to Parents unit. But Parents
unit can talk to Baby unit with its TALK key.
1. Press and hold TALK key of Parents unit and talk to the Baby unit.
2. Release the TALK key, the Parents unit is in receiving status and wait for signal from
Baby unit.
Remarks:
When pressing TALK key, the Parents unit does not receive any sound from Baby unit.
D. Music Control
After activating Music Play function of both units, as long as one of them adjusts music
play or changes music(1-6 or AL), the setting for this function of the other unit will change
accordingly.
Trouble shooting
Orange light
Orange light
Flashing
Flashing
Red/ Green light
still flashing still Orange light
still Orange light
still flashing

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Problems Solutions
1. No power - Unit is turned off.
- Check if the batteries are installed properly.
- Make sure the adaptor is connected to the Unit properly if using
the adaptor instead of batteries.
- The Unit may be in low battery status, change new batteries.
2. Message not
transmitted.
- Sound sensitivity level of Baby unit is too low, turn the sound
sensitivity switch to “HI” position.
- Units are out of range or lost connection. Ensure the distance
between the units within 300m.
Note: Communication range varies depending on surrounding
conditions such as physical obstructions, interference.
- Make sure the TALK key of Parents unit is not pressed.
- Make sure the unit is unlocked.
- Ensure both units have already scanned the corresponding
code.
3. No sound signal - Volume level on Parents unit is set too low. Adjust it to higher
volume.
- Sound sensitivity level of Baby unit is too low, Turn the
Sound Sensitivity switch to“HI” positions.
- Units are out of range. Ensure the distance between the units
within 300m.
- Make sure the TALK key of Parents unit is not pressed.
- Make sure the unit is not locked key.
- Ensure both units have already scanned the corresponding
code.
4. Received
Conversation or
sound from neighbors.
- Signal interference due to other nursery monitor on the same ID
Code or cordless phone used.
- Change both units to another ID code by pressing LINK key.
5. Hearing static or
rustle from Parent unit. - The both units are positioned too close to each other. Keep away two units at about 1m.
- The volume is set too high. Lower the volume at the Parent unit.
- Reposition or replace batteries.
Technical Specifications
Power Supply Voltage:
Parents unit : 3AAA batteries or rechargeable batteries & Adaptor: AC120V, DC 7.5V
Baby unit : 3 AAA batteries or rechargeable batteries & Adaptor: AC120V, DC 7.5V
Operation Frequency : 2.401~2.482GHz
Operating Range: up to 300m in ideal conditions
Mic Sensitivity : 1 to 2 meter

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FCC Statement:
Caution: The user is cautioned that changes and modifications made to the
equipment without the approval of manufacturer could void the user’s authority to
operate this equipment.
Notes: 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 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.
Exposure to radio frequency energy
This device and its antenna must not be co-located or operated in conjunction with any
other antenna or transmitter. To comply with FCC RF exposure requirements, only use
supplied antenna.