Blaupunkt GTD 1407 A User manual

CLASS AB DSP
WITH AMPLIFIER GTD 1407 A
Operating and Installation Instructions

1
CAUTIONS
This device has been manufactured according to
established safety guidelines. However, dangers may
still occur if the safety notes in this manual is not
observed. This manual is intended to familiarize the
user with the device’s important functions. Read this
carefully, prior to using the car radio. Keep this
manual in an easily accessible location. In addition,
do observe the instructions of other devices used in
conjunction with this device.
Installation Safety Notes
Always adhere to the following safety guidelines:
• Use the device in a manner that enhances the
user's safety while operating the vehicle. It is
advisable for the user to install the device at an
appropriate location during operation. While
driving, it is not recommended for the user to
use applications that may lead to distraction.
• Before installation, disconnect the negative
terminal of the battery. Refer to the safety
vechicle manufacturer’s user manual.
• Ensure that the positions of the holes are
nowhere near the vehicle components to avoid
any damage during drilling.
• Ensure cross section of the cables is not more
than 5mm if the positive and the negative cables
are too long. Incorrect installation may result in
malfunction of the device or the car sound
system.
• Select a dry and well-ventilated location to
install the device.
• The device must not be installed in overly
exposed location.
• The installation location must be suitable for
screw holes and stable ground support
General Safety Notes:
Follow the guidelines below to protect against
injuries:
• Users are advised to maintain the volume of the
car radio at a moderate level to safeguard their
ears and enhance their ability to hear
emergency warning signals (e.g., police and
ambulance sirens). Avoid increasing the car
radio volume while it is muted, as it may not be
audible. The car radio volume can become
excessively loud when unmuted.
Disclaimer
• Blaupunkt is not liable for any loss or damage
caused or resulting from unauthorized
disassembly or modication to the product.
• Under no circumstances shall Blaupunkt be held
liable for any direct, indirect, punitive, incidental,
or special consequential damages, whether
related to property or life, arising out of or
connected with the use or misuse of our
products, including but not limited to issues of
improper storage.
• USA & CANADA: This product is not intended for
sale in the United States and Canada. If acquired
in the U.S. or Canada, it is obtained on an "as-is"
basis. No warranty, whether express or implied,
is provided in the U.S. and Canada.
Voltage Supply
• +12V : Positive connection terminal for car 12V
power supply.
• GND : Power supply negative connection
terminal.
• Firmly and carefully connect the ground lead to
a bare metal point on the vehicle chassis.
• Operation temperature : 0° - 70°C
Compatible OS
• PC - Windows XP or higher
• Mobile Phone - Android 5.0 or higher
- iOS 12.0 or higher
Contents in Box
• Digital Signal Processor (186 x 120 x 46mm)
• 4x Tapping Screws (4x20mm)
• 1x 2.0m USB Cable
• 1x Universal 20P Wiring Harness
• 1x Wired Remote Control (Optional)
Disposal Notes
Do not dispose of your old unit in the
household trash!
Use the return and collection
systems available to dispose of
the old device.
This manual may be updated from time to time
without any notice. Visit www.blaupunkt.com for
more info.

2
INPUT FUNCTION
INSTALLATION
1 2 3 4 5 7
6
8
1. Ch1~Ch7/8 Low Level Outputs
2. Ch1~Ch4 Low Level Inputs
3. USB 2.0 Port
4. Remote Control Input
5. USB Player
6. Power & Protection LED
7. HI/ ACC Convertor
8. Hi Level Inputs/ Speaker Outputs/ Remote In/
Remote Out

3
SPECIFICATION
Audio
• DSP RMS Power : 25W x 4(4Ω), 40W x 4(2Ω)
• DSP Resolution : 24 Bit
• DSP Output Power RMS @ 4 Ohms (≤1% THD +N) :
25Wx4
• DSP Output Power RMS @ 2 Ohms (≤1% THD +N) :
40Wx4
• Distortion (THD) : ≤0.05%
• Damping Factor : >70
• Operating Voltage : 9 -16V
• Sampling Rate : 48kHz
• Signal Converter A/D : MPV8428P
• Signal Converter D/A : Cirrus Logic CS4344
Input
• 4 x RCA/ Aux-in
• 4 x High Level Speaker Input
• 1 x Remote-in
• 1 x USB
• RCA/ Cinch Sensitivity : 300mV
• High Level Input Sensitivity : 2.5V
• Impedance High Level : 51 Ohms
• S/N Ratio Analog-in : ≥95dB
Output
• 7 x RCA/ Cinch
• 4 x High Level Speaker Output
• 1 x Remote-out
• Voltage RCA/ Cinch : 4V RMS
Feature
• Class AB Amplier
• Max. Output Power : 240W
• Frequency Response : 20Hz-22kHz
• Max. Current Draw : 30A
• Dimension (W x H x D) : 186 x 120 x 46mm
• Weight : 0.92 kg
120mm
186mm
160mm
46mm
Accessories
4x Tapping Screws
(4x20mm)
1x 2.0m USB Cable 1x Wired Remote Control
(Optional)
1x 30mm Universal 20P
Wiring Harness

4
Car Specic Wiring Method
Remote Control
(Optional)
USB
Car Player
Car Player
WIRING DIAGRAM
DSP/ Power Amplier
RCA Output
(Ch1~Ch7/8)
To Computer by USB

WIRING DIAGRAM
Universal Wiring Method
HIGH INPUT
Grey
White
Green
REM
(Blue Wire)
GND
(Black Wire)
POWER
(Yellow Wire)
ACC
(Red Wire)
Purple
Rear Right Speaker
Front Right Speaker
Rear Left
Speaker
RR+ OUT RR- OUT
FL+ OUT FL- OUT
RL+ OUT RL- OUT
FR+ OUT FR- OUT
FR- IN FL- IN
FR+ IN FL+ IN
RL- IN RR- IN
RL+ IN RR+ IN
GND +12V
REM OUT REM IN
Car Player
Front Left
Speaker
5

6
SOFTWARE OPERATION (WINDOWS)
Blaupunkt GTD 1407 A Software
Visit www.blaupunkt.com to download the software.
GTD 1407 A.exe
Car entertainment enthusiast / experts may now begin to tone signal details. Enhance the sound eect
according to your very own preference for optimum music enjoyment with the DSP software.
2
5
3
4
Channel Panel (31-band Tuning)
61
1. Source Load
2. 7-channel Control

3. 31-band Tuning Waveform
4. Crossover Frequency Setting :
• 3 Types of High-pass Frequency
• 3 Types of Low-pass Frequency
5. 31-band Equalizer Control
6. Main Volume Control
7
SOFTWARE OPERATION (WINDOWS)

Mobile Application
• Download “Blaupunkt GTD 1407 A” App
from Play Store (Android) or App Store (iOS).
Blaupunkt GTD 1407 A
Main Interface
1. Setting
SOFTWARE OPERATION (MOBILE APPLICATION)
15
6
3
4
2
2. Adjustment of Main Volume
• Adjust the main volume by clicking on the
scale clockwise (Increase) or counter clockwise
(decrease).
3. Sound Eect
• 6 Presets
4. Bottom Navigation
a. Output
8
a b c d

9
b. Delay
c. EQ
SOFTWARE OPERATION (MOBILE APPLICATION)
d. Player
5. BT Connection
• Click on the BT icon to turn on the BT.
• Click on the available device & connect to
“GTD 1407 A APP”.
6. Input Source Setting
• Click on preferable input source.

TROUBLESHOOTING
If any of the following problem occur, please resort to Troubleshooting for the possible solutions. Consult
Blaupunkt authorized dealer if problem persist.
Problem
Amplier power up
failure
No sound output
Low sound output
Buzzing noise
Squealing noise
interference
Distorted sound output
Amplier temperature
increased
Engine noise (static
sound) interference
Engine noise (alternator
whine) interference
Solution
Examine if the ground connection is intact.
Examine if remote input has at least 5V DC.
Examine if battery power is connected correctly to the + terminal.
Ensure supplied voltage is minimum 12V.
Inspect the fuse for damage and replace it if needed.
Restart the device if protection LED light is on.
Examine fuses and replace if necessary.
Examine if ground connection is intact.
Examine if remote input has at least 5V DC.
Examine if RCA audio cables are connected to the right inputs.
Examine if speaker wiring is intact.
Reset Level Control
Examine the Crossover Control setting.
Check if the device continues to produce noise after toggling the amplier on
and o. If yes, examine if the cables are correctly connected and if the cables
and radio are in good condition.
Repair or replace if the cables or the radio are not in good condition.
Ensure RCA connections are properly connected.
Ensure input level of the device matches the signal level of the head unit.
Always set the input level to the lowest.
Examine if crossover frequency is set correctly.
Examine if speaker wire had short-circuit.
Examine if the minimum speaker impedance for the amp models is correct.
Ensure good air ventilation around the device. Add external cooling fan if
necessary.
Typically, poor RCA cable quality is the cause of noise release.
Examine if RCA cable are nowhere near or attached to the vehicle chassis.
Examine if head unit is properly connected to the wires.
10

Blaupunkt Car Entertainment - Asia Pacic Competence Centre
R0
1 141 22 015 02 01