Showing posts with label 2. Show all posts
Showing posts with label 2. Show all posts
Wednesday, November 19, 2014
To Install S7562CZNUANB1 Android 4 1 2 Jelly Bean Firmware
Install Android 4.1.2 Jelly Bean Official Firmware on Galaxy S Duos S7562C through Odin:
- Download Android 4.1.2 ZNUANB1 Firmware for Galaxy S Duos S7562C from the above list
- Download Odin 3.07
- Switch off your phone and boot Galaxy S Duos S7562C into Download Mode by pressing and holding the Volume Down+Home+Power buttons (long press until the boot Lcd appear), now press Volume Up key to proceed to Download Mode.
- Extract the downloaded Odin3.07 zip file and run the Odin3 v3.07.exe file as an administrator (Right click on the .exe file and click on Run as administrator)
- Now connect your Galaxy S Duos S7562C to your computer via USB cable
- In Odin3 Lcd, you should see a COM Port number like “0:[COM7]” at ID:COM section and “Added!” text at the message box. This means your device has been detected by Odin3.
- Make sure that, only the “Auto Reboot” and “F. Reset Time” options are checked.
- Now, extract the downloaded firmware zip file, you’ll find a firmware file with extension .tar.md5
- In Odin Lcd, click on PDA button and select the firmware file with .tar.md5 extension (The firmware file look something like: S7562CXXDLJ5_S7562CODDDLI7_INU.tar.md5)
- Now, click on the Start button to begin the installation process, wait few moments.
- Once completed, you would see “PASS!” message in ID:COM port having green background
- Your phone should automatically reboot after completion
- You can now disconnect your phone from computer
- Finish
Wednesday, September 10, 2014
9 Volt 2 Ampere DC Power Supply Wiring diagram Schematic
There is little to be said about this schema. All the work is done by the regulator. The 7809 can deliver up to 2 amps continuous output whilst maintaining a low noise and very well regulated supply. The schema will work without the extra components, but for reverse polarity protection a 1N5400 diode (D1) is provided at the input, extra smoothing being provided by C1. The output stage includes C2 for extra filtering, if powering a logic schema than a 100nF (C3) capacitor is also desirable to remove any high frequency switching noise.
Circuit diagram:
Circuit diagram:
Parts:
C1 = 100uF-25V electrolytic capacitor, at least 25V voltage rating
C2 = 10uF-25V electrolytic capacitor, at least 6-16V voltage rating
C3 = 100nF-63V ceramic or polyester capacitor
IC = 7809 Positive Voltage Regulator IC
D1 = 1N5400 Diode
Thursday, September 4, 2014
Stereo balance meter 2
Description
Outputs from each channel are fed to the two inputs of ICl connected as a differential amplifier. IC2 and 3 are driven by the output of ICl. Output of ICl is connected to the noninverting inputs of IC2 and 3. If the output of ICl approaches the supply rail, the outputs of ICs 2 and 3 will also go high, illuminating LED3. This would happen if the right channel were dominating. If the left channel was dominant, the outputs of ICs 2 and 3 would be low, illuminating LED1. If the two channels are equal in amplitude, the outputs of ICs 2 and 3 would be high and low respectively, lighting up LED2.
Circuit Diagram
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| Stereo balance meter 2 |
24 W BTL or 2 x 12 W stereo car radio power amplifier
General Description:
The TDA1515BQ is a monolithic integrated class-B output amplifier in a 13-lead single in-line (SIL) plastic power package. The device is primarily developed for car radio applications, and also to drive low-impedance loads (down to 1,6 Ω). At a supply voltage VP = 14,4 V, an output power of 24 W can be delivered into a 4 Ω BTL (Bridge Tied Load), or, when used as stereo amplifier, it delivers 2 × 12 W into 2 Ω or 2 × 7 W into 4 Ω.
Features:
- flexibility in use − mono BTL as well as stereo
- high output power
- low offset voltage at the output (important for BTL)
- large usable gain variation
- very good ripple rejection
- internal limited bandwidth for high frequencies
- low stand-by current possibility (typ. 1 µA), to simplify required switches; TTL drive possible
- low number and small sized external components
- high reliability.
- The following currently required protections are incorporated in the circuit. These protections also have positive influence on reliability in the applications.
- load dump protection
- a.c. and d.c. short-circuit safe to ground up to VP = 18 V
- thermal protection
- speaker protection in bridge configuration
- SOAR protection
- outputs short-circuit safe to ground in BTL
- reverse polarity safe.
Circuit description:
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| car radio power amplifier mono |
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| car radio power amplifier stereo |
Tuesday, September 2, 2014
Recording playback and 2 W audio power amplifier TDA1016
GENERAL DESCRIPTION:
The TDA1016 is a monolithic integrated audio power amplifier, preamplifier and A.L.C. circuit designed for applications in radio-recorders and recorders. The wide supply voltage range makes this circuit very suitable for d.c. and a.c. apparatus. The circuit incorporates the following features:
Features:
- Power amplifier/monitor amplifier
- Preamplifier/record and playback amplifier
- Automatic Level Control (A.L.C.) circuit
- Voltage stabilizer
- Short-circuit (up to 12 V a.c.) and thermal protection
Circuit diagram:
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| Recording/playback and 2 W audio power amplifier TDA1016 |
Friday, August 29, 2014
2 x 6 W hi fi audio power amplifier TDA2615
FEATURES:
- Requires very few external components
- No switch-on/switch-off clicks
- Input mute during switch-on and switch-off
- Low offset voltage between output and ground
- Excellent gain balance of both amplifiers
- Hi-fi in accordance with “IEC 268” and “DIN 45500”
- Short-circuit proof and thermal protected
- Mute possibility.
GENERAL DESCRIPTION:
The TDA2615 is a dual power amplifier in a 9-lead plastic single-in-line (SIL9MPF) medium power package. It has seen especially designed for mains fed applications, such as stereo radio and stereo TV.
Circuit Diagram:
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| Circuit Diagram 2 x 6 W hi-fi audio power amplifier TDA2615 |
Monday, August 25, 2014
TDA1519 2 x 6 W stereo car radio power amplifier
GENERAL DESCRIPTION:
The TDA1519 is an integrated class-B dual output amplifier in a 9-lead single in-line (SIL) plastic medium power package. The device is primarily developed for car radio applications.
Features:
- Requires very few external components
- High output power
- Fixed gain
- Good ripple rejection
- Mute/stand-by switch
- Load dump protection
- AC and DC short-circuit-safe to ground and VP
- Thermally protected
- Reverse polarity safe
- Capability to handle high energy on outputs (VP = 0 V)
- No switch-on/switch-off plop
- Protected against electrostatic discharge
- Compatible with TDA1517 (except gain).
Circuit diagram:
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| TDA1519 2 x 6 W stereo car radio power amplifier |
Wednesday, August 20, 2014
2 Way Cross Over 3500 Hz bass and treble
This is 2 way cross-over for your speaker system. This schema will handle 2 speaker that are woofer (low frequency) an tweeter (high frequency).
The result will shown as below picture:
Here theschematic diagram of the schema:
Visit this page for PCB layout and complete explanation about the schema.
Read More..
The result will shown as below picture:
Here theschematic diagram of the schema:
Visit this page for PCB layout and complete explanation about the schema.
Sunday, August 17, 2014
Build a 140W amateur radio linear amplifier 2 30Mhz Wiring diagram Schematic
Build a 140W amateur radio linear amplifier 2-30Mhz Circuit Diagram. This inexpensive, easy to construct amplifier uses two MRF454 devices. Specified at 80 W power output with 5 W of input drive, 30 MHz, ana 12 Vdc.
140W amateur radio linear amplifier 2-30Mhz Circuit Diagram
140W amateur radio linear amplifier 2-30Mhz Circuit Diagram
Saturday, August 16, 2014
2 1 Surround Speaker System Wiring diagram Schematic
"Simple 2.1 Surround Speaker System " . Here I have used three TDA 2030 IC for making signal amplification . Here you need a sub filter extra ( Sub filter schema diagram link showing below ) . This project mostly used in computer . Part list and applications are showing below.
Part List
| Component No: | Value | Usage |
| All C1 | 100MF | Grounding |
| All C2 | 100nF | Grounding |
| All C3 | 100nF | Grounding |
| All C4 | 100MF | Grounding |
| All C5 | 100MF | Feedback |
| All C6 | 100MF | Audio Coupling |
| All C7 | 220nF | Noise Grounding |
| All R1 | 1K | |
| All R2 | 10K ( Not 1K ) | |
| All R3 | 22K | |
| All R4 | 22K (Not 1K ) | |
| All RV1 | 100K | Volume Controlling |
| All D1 To D2 | IN4007 | Potential Breaking |
| U1 To U6 | TDA2030 | Amplification |
Applications
* 2.1 Surround Amplifier
* 2.1 Home Theater
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