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Code last changes Function/description/information *# 06 # 16.12.03 Seriennummer/IMEI indicates (actually also a GSM is code - see further below) *# 0000 # 16.12.03 SW version announcements (e.g. V3.42.1, 16-10-03, Nhl-10) *# 2820 # 16.12.03 Bluetooth (BT) device address indicate. xx # 16.12.03 Directory quick access (xx = storage location and afterwards lozenge e.g. 24 #) A/from key 16.12.03 Short pressing for menu for switching between profiles Menu key 16.12.03 Long pressing for "task manager" - switching between active programs (with "C" key programs can be terminated.) Menu quick access 18.01.04 Over in the menu e.g. to point 3.1 arrive simply 31 enter (if the third symbol a file is opened is for these and then in it started the first Programm/Icon). Autostart go around 28.12.03 ...

Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful music player with the help of a stereo power amplifier. This does away with the need of a sophisticated in-dash car music system. Most mobile phones have a music player that offers a number of features including preset/manual sound equalisers. They have standard 3.5mm stereo sockets that allow music to be played through standard stereo headphones/sound amplifiers. Nokia 2700 classic is an example. Circuit diagram : Mobile Car Stereo Player Circuit Diagram A car audio amplifier with 3.5mm socket can be designed and simply connected to the mobile phone output via a shielded cable with suitable connectors/jacks (readymade 3.5mm male-to-male connector cable is a good alternative). Fig. 1 shows the circuit of car stereo player. It is built around popular single-chip audio power amplifier TDA1554Q (IC1). The TDA1554Q is an integrated class-B power amplifier i...

This is the Simple 12V Portable and Mobile Power Supply Schematic .This type of power supply can be built quite inexpensively and needs only a minimum of circuitry. This circuit will give output current of 1 amp, well stabilized and smoothed. Simple 12V Portable and Mobile Power Supply Schematic The smoothing and regulation is provided by IC1 7812 which is a 12V monolithic voltage regulator. Thisportable power supplyunit incorporates output current limiting and is therefore not damaged by accidental short term short circuits or other forms of output overloading.   components Resistor1/3 watt 5% R1 1.8k Capacitors Cl 2200uF 25V electrolytic C2 100nF polyester (C280) C3 100nF polyester (C280) Semiconductors ICI uA78I2 (12 volt 1 amp positive regulator) D1 to D4 1N4002(4 off) Switch S1 DPST toggle type Transformer T1 Standard mains primary, 15 — 0 — 15 volt 2 amp secondary

Here is a simple circuit diagram of mobile signal jammer. This circuit analysis is simple and easy. For any jammer circuit , remember that there are three main important circuits. When they are combined together, the output of that circuit will work as a jammer. The three circuits are RF amplifier. Voltage controlled oscillator. Tuning circuit. So the transistor Q1, capacitors C4 & C5 and resistor R1 constitute the RF amplifier circuit. This will amplify the signal generated by the tuned circuit. The amplification signal is given to the antenna through C6 capacitor. Capacitor C6 will remove the DC and allow only the AC signal which is transmitted in the air. When the transistor Q1 is turned ON, the tuned circuit at the collector will get turned ON. The tuned circuit consists of capacitor C1 and inductor L1. This tuned circuit will act as an oscillator with zero resistance. This oscillator or tuned circuit will produce the very high frequency with minimum damping. The both induct...

This is a Mobile Phone Travel Charger Circuit Diagram. At this point is an ideal cellular phone charger using 1.5 Volt ballpoint cells to charge mobile phone while wandering. It can refill cell phone battery three before four period in the field of spaces everyplace AC power is not on hand. A good number of the cell phone phone batteries are rated by the side of 3.6 in opposition to/500 mA. A single create torch cell can provide 1.5 volts and 1.5 Amps current. So if four pen cells are connected serially, it wish form a battery bunch with 6 volt and 1.5 Amps current. while power is practical to the circuit through S1, transistor T1 conducts and grassy LED light. Mobile Phone Travel Charger Circuit Diagram What time T1 conducts T2 furthermore conducts since its dishonorable becomes denial. Charging current flows from the satellite dish of T1. To reduce the charging voltage to 4.7 volts, Zener diode ZD is used. The output gives 20 mA current on behalf of stupid charging. If additio...

Now you can charge your Mobile Phone from the USB outlet of PC This simple circuit can give regulated 4.7 volts for charging a mobile phone. USB outlet can give 5 volts DC at 100mA current which is sufficient for the slow charging of mobile phones. Most of the Mobile Phone batteries are rated 3.6 volts at 1000 to 1300 mAh. These battery packs have 3 NiMh or Lithium cells having 1.2 volt rating. Usually the battery pack requires 4.5 volts at 300-500 mA current for fast charging. But low current charging is better to increase the efficiency of the battery. The circuit described here provides 4.7 regulated voltage and sufficient current for the slow charging of the mobile phone. Transistor Q1 is used to give the regulated output. Any medium power NPN transistor like CL100, BD139, TIP122 can be used. Zener diode D2 controls the output voltage and D1 protects the polarity of the output supply. Front end of the circuit should be connected to a A type USB plug. Connect a red wire to pin1 and ...

Mobile phone chargers available in the market are quite expensive. The circuit presented here comes as a low-cost alternative to charge mobile telephones/battery packs with a rating of 7.2 volts, such as Nokia 6110/6150.   Circuit diagram: Mobile Phone Battery Charger Circuit Diagram   Parts R1 = 1K R2 = 47R R3 = 10R R4 = 47R C1 = 1000uF-25V D1 = LEDs any color D2 = LEDs any color D3 = LEDs any color D4 = 1N4007 D5 = 1N4007 IC1 = LM7806 T1 = 9VAC Xformer 250mA BR1 = Diode bridge 1A Circuit Operation: The 220-240V AC mains supply is down-converted to 9V AC by transformer T1. The transformer output is rectified by BR1 and the positive DC supply is directly connected to the charger’s output contact, while the negative terminal is connected through current limiting resistor R2. D2 works as a power indicator with R1 serving as the current limiter and D3 indicates the charging status. During the charging period, about 3 volts drop occurs across R2, which turns on D3 through R3. An e...

Her e is a simple mobile phone jammer Electronic Circuit Project.  Circuit showing a mobile phone jammer.  Here i have used a fm transistor for making this circuit. Mobile phones are working in 450  MHz  frequency. Simple Mobile Phone Jammer Circuit Diagram: Here the transmitter generate almost equal to 450 MHz  frequency there for the mobile phone does not identify the original signal but the signal range is very week so this circuit working in only 100 m range .This circuit working in only 450 Mhz .Do not give more than 3 V. Parts List of Mobile Phone Jammer Circuit Diagram: Applications FM Transmission TV Transmission Remote Controlled Toy

Build a Simple Mobile Voltage Regulator Circuit Diagram. This simple mobile voltage regulator circuit diagram may save your two meter or CB transceiver if the voltage regulator fails. The 2N3055 should be heat sinked if current drawn by the rig is in excess of 2 A on transmit. This simple mobile voltage regulator circuit diagram will do little under normal operating conditions, but could save expensive equipment if the vehicle`s electrical system loses regulation. Simple mobile voltage regulator circuit diagram

A simple charger drawings, to see to understand.