He lived, was the Sony radio, when sold, they said that Japanese, believed forced the price, later he himself assured everyone that she was there. Its objective advantage is pure sound. True, there was a small nuanxik - the FM range of 88-108 mHz range, but the store had a Cudesman, who for the "Shallow Small" created a miracle - filled the scale by many Russian-speaking radio stations. Exploited the radio tape recorder in the full program, but having remembered how much it was paid for it, neither her nor on it. So it is not bad, despite the very honorable age. Here are just broadcasting stations that she caught, first dressed, and then it was not at all.
On the Internet about the setting of the sound-reproducing information equipment, the sea is written correctly, in detail. It is happiness for students of radio engineering universities, it can easily be used instead of abstracts to prepare for exams, and this info will not help the owner of a stipped radio, it's not an intelligence to increase, but to fix the receiver. Or throw away, no longer sorry.
Opened the housing, began to disassemble the components. None to the power supply that was super primitive that at the bottom left, nor to the tape mechanism of the tape recorder, to the right of it, there are no complaints. One gives "to the mountain" of its 12 V, and the second regularly pulls the magnetic tape.
And here pCB I wanted to understand a little. For the warm-up, it checked all electrolytic capacitors to the actual presence of tank and ESR. It's hard to believe, but everyone turned out to be in complete order. Dropped and disassembled the volume control - variable resistor, on an example of revision. Somehow a long time ago, he was smeared and was, through a medical insole with a needle, awarded a portion of machine oil. Does not need the additive? And the oil in it turned out to be so much that at least now in a frying pan - the surplus was blocked, returned to the place. The board from printed conductors washed away with antirex alcohol specifically purchased at the pharmacy (they did not give anything else), and then so that there is no white ride from it, hot water with shampoo. It turned out not bad, although perceived by rumor, this way is dying.
Contacts of wires suitable for the dynamics, removal. And around the circumference, the dynamics set the rim - cut along a flexible tube from a medical dropper. It is that the metal dynamics does not relieve on the plastic of the case - it will not be worse for sound characteristics.
And then, very by the way I remembered that the master being modified by the radio tape recorder spoke about some wire spirals. On the board, there were several and all in the area of \u200b\u200bthe capacitor of the variable container. Partially assembled the device, turned on and on the desired range began to touch the copper wires with dumpts. Two did not respond, and hardly touched to the third, characteristic sound changes appeared in the dynamics. Found! On the photo below. She touched his tweezers well, and he dangles. Dropped, straightened and put on the new, on the mandrel of a suitable diameter. Separed in place. FM range came to life. There is a completely Ospel, and let's move the turnout of the coil (increase and reduce the gap between them). In response to my actions, the location and number of stations on the scale began to change. But two tweezers were most convenient for configuration. Stretched and squeezed them as a harmonica, just gently. Vitely this action look at the video.
Video
As a result, he chose the combination of stations optimally on the scale on the scale. The complexity is only in order to do everything in no hurry, or then, you know, I want to quickly. Successes! The simplest option for rehabilitation - settings shared Babay Iz Barnaula.
Greetings! In this review, I want to tell about the miniature receiver module operating in the VHF range (FM) at a frequency of 64 to 108 MHz. On one of the profile resources of the Internet, I got a picture of this module, I became curious to study it and test it.
I have a special thrill to radio receivers, I love to collect them from school. There were schemes from the Radio magazine, there were just designers. Whenever I wanted to collect the receiver better and less than sizes. The last thing was collected, the design on the K174HA34 chip. Then it seemed very "cool" when in the mid-90s first saw the working scheme in the radio car, was under the impression)) However, progress goes forward, and today you can buy a hero of our review for "three pennies". Let's consider it closer.
View from above. 
View from below. 
For a scale next to the coin. 
The module itself is built on the AR1310 microcircuit. I could not find an accurate datasheet, apparently produced in China and its exact functional device is not known. Only inclusion circuits come across on the Internet. The search through Google issues information: "This is a high-integrated, single-chip, stereo FM radio receiver. AR1310 supports frequency range FM 64-108 MHz, the chip includes all FM radio functions: a low-noise amplifier, a mixer, a low drop, and a low-drop stabilizer. Requires a minimum of external Components. Has good quality Audio Signal I. great quality reception. AR1310 does not require control microcontrollers and no additional softwareexcept 5 buttons. Operating voltage 2.2 V to 3.6 V. Consumption 15 mA, in sleep mode 16 UA. "
Description I. specifications AR1310
- receiving frequencies FM range 64 -108 MHz
- Low power consumption of 15 mA, in sleep mode 16 UA
- Support for four setting ranges
- Using an inexpensive quartz resonator 32.768KHz.
- Built-in double-sided function automatic search
- Support for the electronic volume controller
- support for stereo or mono mode (when closed 4 and 5 contacts, stereo mode is turned off)
- Built-in headphone amplifier 32 ohm class AB
- Does not require control microcontrollers
- operating voltage 2.2 V to 3.6 V
- in the sop16 case
Pickup and overall dimensions of the module. 
Crew microcircuit Ar1310. 
Inclusion scheme taken from the Internet. 
So I compiled a module connection scheme. 
As can be seen, the principle is easierless. You will need: 5 clock buttons, headphone jack and two resistors for 100k. Conduator C1 can be put 100 NF, you can 10 μF, and you can not install at all. Capacitances C2 and C3 from 10 to 470 μF. As an antenna - a piece of wire (I took a MGTF with a length of 10 cm, because I have a transmitting tower in my neighboring yard). In the perfect case, you can calculate the length of the wire, for example, 100 MHz, taking a quarter of the wave or one eighth. For one eighth it will be 37 cm.
According to the scheme I want to make a remark. AR1310 can work in different ranges (apparently for more quick search stations). This combination of 14 and 15 legs of the chip, connecting them to the ground or power supply, is selected. In our case, both legs are sitting on VCC.
We start assembling. The first thing I encountered is a non-standard interconnected step of the module. It is 2 mm, and shove it into a standard layout will not work. But not trouble, taking pieces of wire, just attacked them in the form of legs. 
It looks good)) instead of the dumping fee, I decided to use a piece of textolite, collecting the usual "feud". As a result, it turned out such a fee. Dimensions can be significantly reduced by applying the same LUT and components. smaller. But I did not find other details, especially since it is a test stand, for running. 
Dining power, press the power button. The radio immediately earned, without any debugging. I liked the fact that the stations search works almost instantly (especially if there are many of them in the range). Transition from one station to another about 1 s. Volume level is very high, listening to the maximum unpleasant. After turning off the button (sleep mode), remembers the last station (if you do not completely turn off the power).
Testing the quality of sound (by hearing) was conducted by headphones Creative (32 Ohms) of the type "drop" and the headphones "vacuum" type Philips (17.5 Ohm). And in those and in other sound quality I liked it. No squeakyness sufficient low frequencies. Meloman from me is a nikudny, but the sound of the amplifier of this chip was pleased. In Philips, the maximum volume was never able to unscrew the level of sound pressure to pain.
I also measured the consumption current in sleep mode 16 μA and in the working 16.9 mA (without connecting headphones). 
When the load is connected in 32 Ohm, the current was 65.2 mA, with a load of 17.5 Ohm - 97.3 mA. 
In conclusion, I will say that this radio receiver module is quite suitable for domestic use. To collect the finished radio can even schoolboy. Of the "minuses" (even not even disadvantages, but features), I will note a non-standard interconnecting step fee and no display to display information.
I measured the consumption current (at a voltage of 3.3 V), as we see, the result is obvious. With a load of 32 ohms - 17.6 mA, at 17.5 ohms - 18.6 mA. This is quite another thing !!! The current changed a bit depending on the volume level (in the range of 2 - 3 mA). The scheme in the review was corrected. 
With the help of the radio, you can pass the time on the way. Usually drivers prefer to listen to the music unobtrusive to play the background and did not interfere with the steering. For this, the autoradio is most suitable, which first needs to be configured. But many do not know how to adjust the radio on the radio in the car.
Basically, the radio setup lies in several uncomplicated stages. The broadcast range is selected and the search for radio channels is being searched, which are stored in the tuner's memory. Search for radio stations occurs either in automatic or in manual mode. In the first case, the radio channels are preserved in descending order of broadcast quality.
Consider in more detail how to configure the radio on the common car radio.
Pioneer
If you wondered how to configure the radio on the Pioneer magnetol, do not worry, the setting is very easy. With automatic configuration of the pioneer, FUNC is pressed, followed by BSM. To start the search for radio channels, the button is pressed to the right or up, after completion, the music of the first found radio station will turn on.
For manual installation in Band mode lasting \u003e\u003e |. A search for any first station in this radius will be launched. After that, the device will stop scanning and turn on the reproduction of the found station. Then you need to save it, for this, hold the key with necessary number. If you do not need the station found, you need to press the right key and hold it. Scanning will continue until the new station is.
Using this feature, you can save up to 6 stations in the first bank. After this manipulation, press the BAND button and fall into the second bank, it is shown on the display F2. In the second bank, you can similarly to the memory of up to 6 stations, as well as the third bank. Most often, three banks, but there are more and more. As a result, with three banks, 18 stations will be active and saved. Now you know how to configure the radio on the magnetol pioneer.
Sony.
Configure radio in the Sony radio tape recorder will also not be problems. Station Search is usually carried out by two common methods: manually or automatically. Automatic memorization of radio stations:
- Turn on the radio. By long pressing the Source button, wait for the tuner's inscription appearances.
- The range change occurs when you press the MODE button. In the case of clicking on the joystick, the options menu will highlight.
- Twist a joystick before the appearance of the WTM option. Radio channels are standardly fixed by the keys with the number.
For manual scanning and saving you need:
- Enable radio and start searching stations.
- After the necessary radio station is found, you need to press the number key from 1 to 6, after which the name "MEM" appears. Note: When saving a radio station on a digit, which already has a radio station, the previous one is automatically erased.
Thus, adjust the radio in the Sony magnetol can be in 5-10 minutes.
Supra
After pressing the MODE button, select the radio function, then the RADIO and the saved range with the broadcast frequency will be displayed on the screen. When you click the BND, the desired range of broadcasting is selected.
Press and hold the button \u003e\u003e ||.
Then press the button \u003e\u003e || To select the desired station. If these keys do not press up to ten seconds, everything will return to the original operation mode.
Setting B. automatic mode and scanning selected radio stations
Search for existing radio stations:
By briefly pressing the AS / PS key, start searching for saved radio channels. Any station may be brought around a couple of seconds. For automatic conservation Radio channels hold the AS / PS key. The receiver will set up six optimal stations that are the most powerful in this broadcasting range. This option can be applied in any wave range. After completing the automatic storage of stations, the receiver will stop scanning them.
To configure a specific radio station, press the button \u003e\u003e ||, it will be scanned and the choice of radio channels with the best reception signal. By clicking the \u003e\u003e || button, you can manually select the station you want. Hold the key from 1 to 6 for about a couple of seconds to memorize the channel under the desired key.
JVS.
When setting the stations there is an opportunity to leave in the tuner 30 FM radio channels and 15 Channels.
Installing stations manually:
- Choose a broadcast band by pressing the TUNER BAND key.
- Click the 4 button to implement the station setting.
- Hold the key with any selected number on the panel to memorize the station in the Magnitol memory. The selected number will begin to blink, after which you will see the station saved under the selected number. For example: To configure the station under the number 14, press the +10 key, and then the key 4 is about three seconds or more.
- To save the device in the memory of other radio stations you need to repeat the items from the first to the third one. And to change the setting of the entire station you need to repeat the entire process first.
Setting the stations in automatic mode:
Stations will be given numbers by increasing the frequency of the radius of the action.
- Select a radius by pressing the TUNER BAND key.
- Press and hold the AUTO PRESET button on the panel.
- To install another radius, you need to again pass the steps from the first to the second.
To replace the selected stations in automatic mode, you need to use a manual installation.
Kenwood
Kenwood radio tape recorders offer three types of autoradio settings: automatic (auto), local (LO.S.) and manual.
- Click SRC until the "Tune" inscription appears.
- Press FM or AM to select the range.
With automatic setup Click \u003e\u003e | or |.
When manual setting After all the above actions, ST, meaning the found station will light up.
1. Determine how we will rebuild the receiver.So, by observing reasonable caution we open the device. We look at what the frequency setting knob is connected. This can be a variometer (metallic, in several centimeters of the thing, usually two or one double, with longitudinal holes in which a pair of cores are moving or put forward.) This option was often used before. While I will not write about him. () And this can be a plastic cube size a few centimeters (2 ... 3). It lives several capacitors that change their container in our whim. (There is still a method of setting up varidations. In this case, the setup controller is very similar to the volume control. I did not meet this option).
2. We find a heterodyne coil and condensers connected to it.
So you have a kp! We act further. We are looking for the copper coils around it (yellow, brown spirals from several turns. Usually they are not even, and there are no smyshole and fallen ones. And it is right, so they are set up.). We can see one, two, three and more coils. Do not be afraid. Everything is very simple. Include your device in a disassembled form (do not forget to connect an antenna authentic) and set it up on any radio station (better not to the most loud). After that, we hold on a metal screwdriver or just with your finger (the contact is optional, just spend something near the coil. The receiver response will be different. The signal may become louder or a hindrance may appear, but the coil we are looking for the strongest effect. Several stations and reception will be completely disturbed. It means that it is a heterodyne coil. The heterodine frequency determines the contour consisting of this coil itself and the capacitors parallel to it. They are somewhat - one of them is in the KPE and heads the frequency restructuring (we catch with it Different stations), the second is also in a cube KP, or rather on its surface. Two or four small screws on rear surface KPU (usually it is addressed to us) these are two or four trimmed capacitor. One of them is used to adjust the heterodyne. Typically, these capacitors consist of two plates driven by each other when rotating the screw. When the upper plate is exactly above the bottom, then capacity maximum . Turn these screws with a screwdriver. Shoot them there and a few (as little as possible) degrees. You can marker to mark their initial position to insure against trouble. Which one affects the setting? Found? He will need us in the near future.
3. Once again we will define where it is rebuilt and operate.
What range is in your receiver and what is needed. Lower the frequency or increase? To lower the frequency to add 1 ... 2 turns to the heterodyne coil. As a rule, it contains 5 ... 10 turns. Take a piece of naked tinned wire (for example, output from some long-legged element) and put a small prosthesis. After such an extension, the coil must be adjusted. Turn on the receiver and catch any station. No stations? Chepuha, take an antenna is more authentic and twist the setting. That, something caught. What is it. We have to wait when they say or take another receiver and catch the same. See how this station is located. At that end of the range. Need to move even below? Easily. Shifting the coil's dense coil. We will catch this station again. Now it is OK? Just catching bad (the antenna is needed long). Right. Now we find an antenna coil. She is somewhere nearby. It is necessarily suitable for wires from KPU. Let's try to enable the receiver insert in this or simply to bring any ferrite core to it (you can take the DM throttle by removing the winding from it). The volume of reception increased? For sure, it is she. To reduce the frequency, it is necessary to increase the coil at 2 ... 3 turns. A piece of hard copper wire Suitable. You can simply replace the former coils on new, containing 20% \u200b\u200bmore turns. The coils of these coils should not lie tightly. By changing the reel stretching and currging it, we change the inductance. The more densely wound the coil and the more turns in it, the above its inductance And below will be a working range. Do not forget that the real inductance of the contour is higher than the inductance of the individual coil, as it is summed up with the inductance of the conductors, which make up the contour.
For the best reception of the radio signal, therefore, the difference in resonant frequencies of heterodyne and antenna contours was 10.7 MHz is the frequency of the intermediate frequency filter. This is called the proper pairing of input and heterodyne contours. How to ensure it? We read on.
Setting (pairing) input and heterodyne contours.
Fig.1. High-frequency part of the IUE-FM radio receiver. It is clearly seen that the entry capacitor of the input circuit (Ca-P) is set to the position of the minimum capacity (in contrast to the heterodyne trimmed CG-P capacitor). The accuracy of the installation of rotors of trimmed condensers is 10 degrees.
The heteroodine coil (LG) has a big bandage in the winding that reduces its inductance. This rush appeared in the configuration process.
Another coil is visible at the top of the photo. This is an input antenna contour. It is broadband and not rebuilt. The telescopic antenna is connected to this contour (via the transition condenser). The purpose of this circuit is to remove rough interference at frequencies significantly below the workers.
And one more action, since we are already here.
Tune in to your favorite station, then shorten the antenna to a minimum when there is no interference and adjust the Filter of the PC, which you look like a metal square with a lilac mug (in the middle left part of the photo). Accurate tuning This contour is very important for pure and loud reception. The accuracy of the installation of the slot is 10 degrees.
The settings for a certain frequency have every radio, most of them are even fixed, which is very convenient. If the receiver is digital, that is, it has electronic setup, I will fix a radio station on a specific channel will not be a lot of work. A little more complicated this process will occur on receivers with a conventional setup scale. But, in any case, in the user manual, it is written in detail how to configure the radio and how many stations you can save in its memory. However, all this can be done only after purchasing this radio itself. With the problem of choice today, many people face, because all sorts of models in stores are presented a lot.
For those who want to listen to all radio stations optimal option will be vesvolny receiver. And if he has the opportunity to take VHF waves, it will be just happiness, because such receivers can catch the negotiations on the radio. Therefore, it is worth thinking how to choose a radio reception, for what purposes it will be used and what should it be? If it is a "cabinet" receiver, then it is quite enough standard FMs of AM ranges. For "portable" and "hiking" receivers, it is better to have the ability to "listen" all frequencies, since hiking can be in unfamiliar areas where the radio can be broadcast on any frequencies. "Portable" you can simply indulge and listening to other people's negotiations if they use radio.
If buying such a receiver does not work, it is worth thinking how to collect a radio receiver so that he can "hear" in the desired range. To do this, you have to be a radio amateur, or have one of them in very close friends. You can, of course, dig on the Internet and search step-by-step instructions By assembling the radio receiver. But there too underwater rocksbecause not all necessary details can be bought, some have to do it yourself. Therefore, if there is a friend-amateur, then you can ask him how the radio receiver works, which details can be bought, and what and how to do it yourself, and most importantly? After the answers to the questions are received, you can start searching for the necessary parts, both for the receiver and parts for details to your radio.
We will have to run a lot of shopping, search in the storeroom an old technique and digging in it in search of the necessary details. After that, you will have to spend a lot of time with a soldering iron in your hands and spend several grams of tin and wires. And so, when all the details are ready, you will need to turn to a friend with the question, how to make a radio receiver so that it worked reliably and for a long time. What will be the radio, the values \u200b\u200bdo not have much. And the homemade and purchased receiver takes radio waves. If he is a pleasure to his owner, it means that he will fulfill his destination.