Supra sfd 110u diy repair circuit

In detail: supra sfd 110u do-it-yourself repair scheme from a real master for the site my.housecope.com.

4. Antenna connector

5. Audio output (red - right audio channel, white - left audio channel)

7. Surround left speaker (-) (Green / Black)

8. Surround left speaker (+) (Green)

9. Front left speaker (-) (White / Black)

10. Front left speaker (+) (White)

11. Front right speaker (-) (Gray / Black)

12. Front right speaker (+) (Gray)

13. Surround speaker right (-) (Purple / Black)

14. Surround right speaker (+) (Purple)

16. Power +12 when the ignition is on (+) (Red)

17. Power Antenna / To Amplifier (Blue)

18. Power supply + 12V constant / Memory of settings (+) (Yellow)

Circuit diagrams autoradio tape SUPRA SFD-110U, SFD-111U, SFD-113U

Compound: HK2001, SI4730, SC7313, TDA7384,

Schematic diagram car radio Supra SFD-105U

Compound: A2305, EW8108, SI4730, SI47XX, TDA7388

Schematic diagram car radio Supra SFD-106U, SFD-107U, SFD-109U (Chassis: NCD3033)

Main cast: A2305, SI47XX, SI4730, TDA7388, PT7313, SC75823E

Schematic diagram DVD / TV autoradio Supra SDD-3001, SDD-T3002

In SM, there is no circuit on Servo PCB

Circuit diagrams autoradio SUPRA SCD-300, SCD-200 (CD4050, CD-4050)

Compound:
SPHE8104LW
AM5888
25T80
TDA7377
AP1507-5
MD5406
TDA7312
TEF6606
BU1924
4730/4731

When performing an independent installation of a car radio belonging to the Supra brand, it must be remembered that devices of this type are intended for use exclusively in cars with a 12V DC power supply system and a minus using the car body. In other words, an attempt to install such car radios on vehicles with 24V power sources (buses, large trucks, etc.) may lead to their failure.

Video (click to play).

When choosing a specific place for installing the device, you should be guided by the conditions according to which the receiver is located in a horizontal position and at the same time the ventilation holes should not be blocked, providing free access of air to the inside of the multimedia device.

It is most correct to fix the supra car radio body using the standard mounting basket supplied in the factory set of the device. In turn, the basket is fixed in the technological compartment of the car dashboard with the help of special folded petals. In order to rigidly fix the device in the basket and eliminate vibration, its rear part is fixed with a special metal bracket.

Connecting a radio tape recorder is quite simple to perform with a universal ISO connector. If this connector is missing or it is revealed that its wiring does not correspond to the required values, then the supra radio tape recorder connection diagram below allows you to perform all the necessary operations without any problems, guided by the purpose and color marking of individual wires:

2) Subwoofer output (brown wire);
3) Output to the front right RCA (red wire);
4) Output to the front left RCA (white wire);
5) Output to the rear right RCA (blue wire);
6) Output to the rear left RCA (purple wire);
7) Video output (yellow wire);
8) Video input for rear view camera;
9) Input of the left channel from an external source (white wire);
10) Input of the right channel from an external source (red wire);
11) Video input (yellow wire);
12) Parking brake (gray wire);
13) Reverse (brown wire);
14) Antenna or amplifier control (blue wire);
18) Ignition (red wire);
19) Powered by rechargeable battery (yellow wire);
20) "Ground" (black wire);
21) turn on the backlight (orange wire).

In the above diagram, the devices that additionally participate in the operation of the car radio have the following digital designations: 1 - antenna, 15 - ignition switch, 16 - fuse box, 17 - battery.

When installing the speakers, white (+) and white / black wires (-) are connected to the front left speaker (22), gray (+) and gray / black (-) wires to the front right speaker (23), to the rear left speaker (24 ) green (+) and green / black (-) wires and to the rear right speaker (25) purple (+) and purple / black (-) wires, respectively.

All speaker wiring must be properly insulated for maximum audio clarity.

Image - Supra sfd 110u diy repair scheme

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Equipment model: SUPRA SFD-110U / SFD-111U / SFD-113U
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File name: supra-sfd-110u.pdf
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Yes, I decided to replace the radio tape recorder in the car. I once already wrote about the cheapest radio tape recorder in the world, which I bought in my car about the last year, to amuse the bear. So - I bought myself almost exactly the same. (Since then, it has even dropped in price by a hundred rubles. Eight hundred now, or so.) What was the point, since the previous one still works? Oh, this is a complicated train of thought!

Firstly, the radio tape recorder in the stationary music complex in the workshop stopped working for me. Moreover, based on the symptoms, I decided that the amplifier was dead, and was not at all surprised - the radio tape recorder was old, lying in the garage for god knows how much, you never know what happened to it. This was the first argument.

The second argument is that the SUPR in the car has an inconveniently located SD card slot. I have it in some deepening, and the cards do not fit. With flash drives, everything is fine, but still incomplete functionality, disorder. And flash drives do not always contact well, sometimes a massive flash drive will play on a bump, the contact will go away, and that's all - start looking again where it played there ... With cards, there is no such thing. After all, the USB connector is the only weak point of such players, there is nothing else to break in them ...

In general, these two arguments prompted me to the following combination - to buy a new radio tape recorder in the car, move the radio tape recorder from the car to the workshop, move the radio tape recorder from the workshop to That Box ... Well, you know such boxes - there is something that has broken down long ago, to fix it there seems to be no need, but the time has not yet come to throw it out. (A very useful drawer in case you need some parts for something you need).

In general, since the SUPRA radio tape recorder suits me completely according to the results of work, and there is nothing cheaper in stores, I bought exactly the same, but slightly different - SUPRA SFD 100U. And there was 85U. Upgrade, then.

The difference between them is in the different location of the card slot:

... in the backlight color (red instead of blue) and the buttons are slightly different, although the principle is the same.

Fasteners, ponytails with connectors. The connector, which is nice, is a standard Euro, and not your own, as it happens. This means - you took out one, put the other on, two minutes and no these twists of yours.

Since there is no playing mechanism inside, the radio tape recorder is light and short in depth.

On the rear end, apart from a common connector and a fuse, it has a line-out and an antenna-in, as well as a hole of unknown purpose, in which there is nothing. Just a hole, it happens.

Connected the stand - it works. Red indication:

In reflected light - white in transmission:

I install it in the car, in two movements - I took it out, put it in.

Checking work. Allegedly, the spectral indicator is purely decorative, it blinks about anything.

Sound? Well, what are you talking about, the sound in the car depends on the head unit almost in the last place. In general, with standard speakers in the doors (well, to be honest, not quite regular - I did install filters and add tweeters to the broadband), without noise isolation, amplifiers, subwoofers and other tricks, the sound is always the same - that of a cheap radio tape recorder, that of an average one (I didn't buy expensive ones, I don't know). It suits me completely.

And I safely installed the removed radio tape recorder in the music center in the workshop, fortunately, again, the euro connector:

I took out one, inserted the other ... And I was convinced that it was not a nichrome thing in the radio tape recorder, but just a diode in the junction between the main and autonomous power supply struck. I'm a woodpecker! As a result, she played on standby batteries. No wonder the sound went out ...

But since you've changed it, what can you do. The diode was replaced, the radio tape recorder plays:

And the foolishly located SD card slot is now available.

And the Prolodzhi radio tape recorder, a victim of an erroneous diagnosis, again went to a dead end, until the next thread of opportunity.

_________________
It is very difficult to find a black cat in a dark room, especially if it is not there.
Confucius

Tension on the legs:
1 – 10,13
2 – 10,13
3 – 11,59
4 – 1,39
5 – 0,96
6 – 1,55
7 – 7,92
8 – 0
9 – 8,49
10 – 0
11 – 0,95
12 – 0,06
13 – 11,57
14 – 10,17
15 – 10,13
What is this green FB detail - ringing on the dial?

Washed dry, zero emotion on the display (panel).
(Power is supplied to the socket of the socket).

Hello everyone! So they gave the Pioneer radio tape recorder. The encoder did not work. I changed it from the Chinese radio tape recorder. Now everything works, only it scrolls 2 divisions faster.
How to choose the right encoder with a certain number of pulses?

Hi all. I have in my hands a dead radio remote control from aliexpress, which has worked for a month and has finished.
the receiver burned out due to the flying out stabilizer 7v gives out. I suppose that in addition to him, both microcircuits flew out.
remote control for 10 commands (2 transmitters with 5 buttons, 1 receiver). The radio is controlled by two wires KEY1, KEY2.
it is not clear what the microcircuits are, because there is no bukafka on the cases, so, please help
1) identify microcircuits
2) write a program for the peak controller (if it is there)
or
3) come up with a new receiver circuit,
but again, the signals from the transmitters are unknown
I copied the scheme from the seal, m. somewhere a bit mistaken

Good day! I apologize if I wrote not there!
In general, I found an old Sony radio tape recorder, and in it the tda8588bj amplifier, began to google, but I did not find anything particularly suitable except for a datasheet. Can you throw the amp on it? I know that mikruha is difficult! If not, can you somehow cut off the radio board and put in the regulators? Help anyone with what they can)

SUPRA SFD-110U manual contains pages in Russian

Go to the download page for the file of this instruction: Download PDF

ATTENTION:
If the connections are not made

right, this can cause a

damage to the product, in this case

the device cannot be repaired according to

grants.
Make connections exactly

according to the scheme

connections. In case of occurrence

doubts about the correctness of the

neniya - seek advice

to the manufacturer's service center.
Insulate carefully all non-use

called wires.
The wires (and "+" and "-") going to

loudspeakers should be

insulated as from the body of a car

beel, and from a + 12V source.
Do not connect wires together,

going to the loudspeakers of different

channels.
Observe the polarity of the connection.

to the speakers.
The total impedance of the loud

thieves connected to one

the channel must be at least 4 ohms.
Do not attach a few thunder-

speakers to the output of one channel

Radio antenna power wire (C-

nii) must not be connected to circuits with

total current consumption b-

more than 100mA (0.1A). Do not connect this

wire with car body.

Make sure that in your car

the electrical system is used

with a rated voltage of +12 V

with a "minus" on the body. Otherwise

in case you need a converter.
Before making connections

turn off the power to the audio circuit

we (radio) by removing the corresponding

fuse out of the box

fuses.
Make connections according to

in accordance with the diagram presented

below.
If your car is not equipped

ISO connector, please purchase before

additionally in a car shop

strong accessories and use

ATTENTION:
Incorrect connection

If your car radio is broken, then there is a chance to repair it yourself. How and under what circumstances this can be done, my master class with a photo will tell you.

The level of complexity of modern car audio equipment is such that if it breaks down, a visit to a service center is inevitable. Replacing the processor or changing the firmware at home is an almost impossible task.

But, if only the sound has disappeared in your radio tape recorder, it is quite possible to try to repair it yourself.

As a rule, replacing a microcircuit does not cause any particular difficulties - if, of course, you are extremely careful and accurate during repairs.

First of all, we measure the voltage on the wires to which the speakers are connected with a tester - the voltage relative to the case should be in the range from 6 to 6.6 volts. Since the amplifiers in modern equipment are made in a bridge circuit, isolation capacitors are not installed at their outputs, so touching the sound output wires to ground is unacceptable.

In our case, the voltage is present, which means there is a chance that the microcircuit is intact.

We disassemble the radio tape recorder - remove the top and bottom covers. Unscrew the screws securing the disk drive located at the top.

To test the performance of the amplifier, touch the legs of the amplifier inputs with your finger. You can use a thin screwdriver or tweezers, but in this case you need to be more careful - accidental shorting of adjacent pins of the microcircuit can disable it.

The photo shows that from the row of microcircuit pins closest to us, the tracks go to the connector - these are outputs; the entrances are located in the second row.

Some models have a “Mute” button - of course, this mode must be turned off.

In our case, a background with a frequency of 50 Hz appears in the speakers - the microcircuit is operational, the malfunction is in another place.

We carefully remove the disk drive without disconnecting the wires and cables. Turn on the radio again and check the signal flow. To do this, we touch the bodies of electrolytic capacitors - there should be 4 of them near the microcircuit, according to the number of channels.

It turns out that the signal passes from the output of the microcircuit, but not from the inputs. We measure the operating mode of the microcircuit with a tester - the voltage on all legs is zero, and there is no short circuit to the case.

Next, we check the operability of the stabilizer microcircuits - two of them are highlighted in blue, they turned out to be serviceable. The third, highlighted with a red rectangle, has a zero potential at the output.

Warming up the metal protrusion of the base of the case and the leads with a soldering iron, we solder the faulty stabilizer.

The marking of the microcircuit is 78M09, i.e. stabilization voltage is 9 volts. We change the microcircuit and assemble the device.

If such a microcircuit is not at hand, and you can buy it only by visiting a district or regional center, you can use the simplest 9-volt stabilizer assembled according to any scheme on one transistor for testing - you just need to remember that the collector's touch to the device case is unacceptable.

If there is a microcircuit of the KREN8A or 7809 series, the task is simplified - they can be attached to the case anywhere.

We solder the wires of the homemade stabilizer to the corresponding contacts on the board and fix them with a piece of electrical tape or tape to prevent the tracks from peeling off when the wires are moved arbitrarily.

Turn on the radio - there is sound. I warn you right away that it is not worth using the device with such a surrogate stabilizer - as soon as possible, you need to install a “native” microcircuit, because dangling paths do not adorn any apparatus.

How to connect a supra subwoofer

How to connect a supra subwoofer, many are wondering. Indeed, performing such a process on your own, you can save a lot of money, which will be invested in the car in the future.
Why pay someone to do something that you can do yourself? But let's take everything in order. Connecting a subwoofer supra srd t30a is carried out according to the instructions.

Subwoofer supra srd t30 and connection

The sub is a very important element of any speaker system. Of course, the acoustics sounds good even without it, but with it the sound improves several times.
With its help, the sound of low frequencies is transferred to another level. The use of such a device is relevant for those who like big bass.
But it is not recommended to install an unsuitable buffer in the machine, as this can lead to different consequences. For example, due to constant rattling, windows will become less resistant to external influences.

Subwoofer supra srd 301 a and connection

As you know, there are three types of bass: low, medium and high. Combining them in one dynamic is simply impossible.
Therefore, if the presence of all of them is necessary, then various details are used for this. For HF, special tweeters are used that can even reproduce ultrasound. But the bass and midrange sound good only when using speakers with monolithic bass.
Installing speakers for tweeter and midrange reproduction is no problem. In the process of work, a minimum of questions may arise, so anyone can cope with this task. But installing a subwoofer is a simple matter.

Supra subwoofer connection diagram

The main difficulty in the installation is its placement. After all, usually the speakers for low frequencies are quite large, so it is difficult to find a suitable place for it. Problems may also appear during the sound adjustment process.

There are two types of woofers on sale:

Passive, which is most often placed in a wooden case. Due to this, the sound quality of musical compositions is significantly improved. Under no circumstances should such a device be connected directly to the speaker system.
For this, a special fuse must be used. Otherwise, a short circuit may occur in the system, as a result of which all its elements will burn out. Also, the speaker is not equipped with a built-in amplifier. Therefore, you should mount an additional one, because otherwise the sound power will be minimal.

Note: Some radios have a built-in amplifier for a subwoofer. Only in such cases can a passive subwoofer be connected directly to the unit. This process is quite complex, so to implement it, you should understand the instructions.

The advantage of an active subwoofer is that it already has a built-in amplifier for sound. As a result, there is no need to buy an additional device (although if necessary, this can be done, since it will not interfere in any way).
Its installation is very simple. After all, it can be immediately connected to the head unit of the car. In this case, setting up a sub will include just a few simple manipulations. It's difficult to say about the cost. Since some models are more expensive, others are cheaper.

Amplifier and Subwoofer Compatibility

Connecting a supra subwoofer

As noted above, installing subwoofers (both active and passive) is not an easy process.
Be sure to stock up on the following materials:

Knife. It may be needed when working with cables;
A screwdriver for dismantling the radio;
Adjustable wrench.

The process consists of several stages, each of which is very important:

Remove the negative battery terminal. Otherwise, the wiring may short-circuit, and this can lead to the combustion of not only the battery, but also all devices in the car;
The power cable must be carefully pulled from the engine compartment through the passenger compartment to the trunk, where the buffer is installed.

Note: If the hole cannot be found, it may have been masked with a rubber plug. It is used to prevent foreign particles in the form of dust and dirt from entering the passenger compartment.

Route the speaker cable, making sure that it does not catch anywhere on anything. Otherwise, while driving, it may be slightly deformed;
If it has already been stretched, then the next stage is its fixation. For this purpose, it is recommended to use special elastic harnesses that will securely hold the wire;
Remove the head unit. If it is not standard, then it is not necessary to remove it. After all, factory models usually have built-in amplifiers, but purchased ones do not.Therefore, dismantling the car radio is a waste of time;

If, nevertheless, it was decided to remove the radio tape recorder, then in this case it is recommended to look at all the connectors that are on it. Pay particular attention to the subwoofer outputs;
Connect the cable through this connector. In addition, the SRC lead can be connected to the unit. It is less thick and longer. Its main task is to turn the amplifier on and off without extraneous manipulation. If this cable is not routed, then the amplifier (see Class d amplifier for subwoofer: advantages and differences from others) will not work;
Lead the negative wire. Any black cable can be used for this purpose. Its connection should be carried out close to the subwoofer, and then it should be connected to the speaker;
Connect all the wires, install the radio tape recorder in the standard hole;

Install the fuse. Its importance in acoustics is very great. It protects the system from short circuits;
Cover the floor of the cabin;
Check if everything works fine. If any element of the speaker system does not function, you will have to disassemble it and recheck everything again.