The radio telephone does not turn on. Repair of the Panasonic handset when the contacts are loss of individual keys. Step is shifted. Frequency, kgz.

This article will consider the most common problems that can entail failure of the radio telephone, which are currently used, almost everywhere - in apartments, offices, hotels, etc. If constant failures occur in the device, without such a procedure, as repair of radiotelephones, it is hardly possible to do. By contacting the service center for the repair of radio telephones, you can be sure that the instrument will serve you with the "faith and truth" not one year. If the breakdown is not significant, you can, try to fix the phone yourself, but it will not be a guarantee of whether it will be fully restored. If the device stopped responding to pressing the button on the Talk tube (inclusion), while the lights do not sing and do not blink, the batteries of the phone are faster. To check this, you need to take normal batteries, and change them. If the radiotelephone has not earned with new batteries, it may be no power supply to the power grid. If the phone earned again, respectively, it was exactly in batteries. When when connecting the tube, it is frowns, blinks with light bulbs, in the work of the device frequent failures, or it does not turn on at all, it is worth finding out if the power supply is in the power grid. To do this, it is necessary to put the tube on the database, if the battery charge indicator will glow, it means to worry about what. After that, you can enable the phone, it is likely that it will work again. If not, you will have to produce the following manipulations. Disconnect the device from the power grid by removing the power supply from the outlet, turn off the batteries from the tube. If the tube has a power switch, it is necessary to remove the cover by disconnecting the power wires that should be sketched, since, subsequently confusing them, it will be guaranteed to contact the service center, where radio telephone repairs are performed. After everything is disabled, the phone needs to "rest" ten minutes, and then connect the BP to the phone, and then, but in no case vice versa, connect BP to the electrical outlet.

After that, connect the batteries to the tube, and put it on the database. The battery charge indicator should shine, and if the device is working in principle, after the operations produced, it must be earned. An equally common problem is when the call rings, and you can talk, and the number does not work. The reason for such a failure can be a random phone switching to the tone dialing mode. After examining the instructions, you can independently translate the phone to the pulse mode. If, putting the tube to the database, the battery charge light lights up, the power supply is fault faster. It is possible that it is poorly connected to the database or fell out of the outlet. You can move the connector that connects to the database, but if it does not help, you will have to look for a new BP. If the device turns on, and there is a database connection with a tube, while the station's response, that is, continuous beep in the tube is not heard, the line may not be faulty. Otherwise, it is worth checking the line cord, namely the wire coming from the line to the database. If nothing helped, the conclusion suggests one - things are bad, and faster everything, you have to prepare money for repairs, which will take the wizard of the service center, for this they have all the necessary equipment and tools. The radiotelephone works, while in the tube, a variety of interference and noises are heard in the tube, you may not bought a quality phone, it may not work in the desired frequency, perhaps the user is far from the base, or, as it is not regrettable, the phone is faulty. Choosing a radiotelephone, it is worth preferring the models of well-known manufacturers who guarantee the quality and reliability of the devices.

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Details: Repair with your own hands the cordless telephone Panasonic from the present wizard for the site site.

Digital cordless phone tube may require repair. Complaints: When dialing the number you have to use more effort than usual when you press the keys. If you do not pay attention to such inconvenience and continue to train your fingers and stability of your nervous system, then over time, some keys will continue to respond to pressing with any force. And then we make a conclusion - the handset broke. Next to repair or buy a new one. Such a "diagnosis" for the handset does not always require paying the work of the master in the workshop or buy a new handset. That's how I myself coped with this problem at home, spending only about thirty minutes. Such actions forces by any person who can hold scolding in his hands.

Digital wireless telephone Answered Panasonic. Manufacturer: Kiucha Matsushit Electric. But the handset can be any manufacturer. All such handsets have a similar device. And the cause of the malfunction in this case can be the same one - there is no contact between the rubber keys and contacts on the phone board.

We unscrew the fastening screws on the housing of the back cover. This model, they are under the lid of the compartment covering the finger batteries.

Remove the compartment cover, remove the batteries. (See photo)

Mind by dump fixing screws.

And in the upper part of the housing, we pull out a slightly dummy, to remove the plastic part of the case from the latch.

When removing the half of the plastic case, this part may fall out. (See photo)

It is easy to return to the place. (Watch in the photo)

Then unscrew the fastening screws.

And in these places (see photos, indicates the screwdriver) of the board fastening. We seem slightly scolding and removing the fee.

So we got to the contacts that you just need to clean what we do.

We collect the tube in the reverse order. And the set buttons work again as new! And still give such advice to use batteries. Put the tube to the recharge database only when the discharge signal sounds. This will prolong the battery life.

Attention!

Manifestation of a malfunction: a weak light of the indicator, a bad battery message although it is fully charged. Defect in diode D1 according to the scheme. How to find: Check the presence of 5.5 volt supply voltage on the anode, the voltage should be 5.2 volts on the cathode. If at the cathode voltage below 4 volt then the diode must be replaced.

2). "Panasonic" Models 3611, 3621.

Such a defect is observed: there is no communication tube with the base - the reason for this is poorly relented output of the transmitter quartz in the tube.

3). In the telephone-answering machine "Panasonic" models 4311.

In normal operation, the tube and the base observes failures in operation of JSC - the reason for the increased ripples of the BP.

four). Panasonic 9080 and the like.

When working, cracks disappearing (for a while) after impact or disassembly. Cause: Bad contact in the connector between the HF unit and the board.
Repair: 1). Each pin connector gently turn 90 degrees.
2). We pull out the connector and send it to the place of its segments of the tinned wire

To change the Tone Pulse mode, you must press the following key combination.
1 Program
2 AUTO.
3 To select PULSE mode, click # 2
to select TONE mode, press * 2R
4 Program

The tube does not work, while there is a keyboard survey - it flew out the stabilitron D17 on the MC power;

Kh-TS900 Similar: The small radius of action - "flows" the filter for 903 MHz in the tube;

Kh-T9500: Unstable communication tube-base, and the base tube is excellent - the noise detector in the pipe. Treatment - replacement of the filter by 455kHz; / p\u003e

KKH-T7980, 9050, 9080, 9280: No connection Tube-base due to the departure of the transmitter frequencies or receiver (defect frequent in the devices 3-4 years old) - stroke capacitors were oxidized in the RF block;

Kh-TS408 and similar: it is impossible to configure the frequency of the transmitter - the varicap is needed.

eight). Defect in Panasonic KX-T9050, KX-T9080.

There is no or unstable base with a tube. I recommend setting up the RF blocks, this is done as follows:

Tube: We carry the jumper to enter the mode, press the PAUSE button (noise is heard in the dynamics). The rotation of the trim capacitors Tx and Rx is set to 1.8V voltage in VXO control points for Tx and Rx, respectively. For this operation, it is desirable to have a repair cable, but you can do without it and without it, to check the control points with a short segment of the wire (counter. Points are on the bottom of the RF block), the voltage is conveniently controlled by an oscilloscope of 0.5V / cases. The setting is quite "sharp", rotating rapids must be required by a dielectric screwdriver. I use screwdrivers made from strips of fiberglass with remote foil and sharpened accordingly. It is also helpful to adjust the supporting generator of 12,800 MHz. Connect the base to the tel. Lines, set the connection, the oscilloscope is viewing the signal at the output of the tube discriminator - 400Hz.- tone line. The rotation of the trimmer is achieving the maximum incompatible amplitude of the signal. Adjust the circuit of the discriminator we achieve the same. Base: configured similarly. For input in the test mode, three counter are shred. Points, then served power. Before setting, tighten all the screws in RF blocks.

Malfunction: very quiet audibility of the subscriber in the tube. The connection between the tube and the base is set normally and the signal from the microphone tube, in the intercom mode, is logged in normally. Determine in this case, where the malfunction in the tube and the database is very simple. Suppose you have a tube and the base are related to each other (in the same intercom mode), at this moment you need to de-energize the database (remove the power supply unit from the outlet) and if you hear a loud noise in the tube, then the malfunction must be signed in the database. In addition, indirectly, the serviceability of the tube indicate high-profile clicks from its dynamics when you dial the number. I had the reason for the malfunction turned out to be bad metallization of the transition hole in the database between the components R27, C11 (15th output IC4). Slightly pressing the dumping on the board managed to localize a malfunction.

Malfunction: There is no connection between the tube and the base. As I was told - to the tube instead of 4.5V connected 12V. But the tube is turned on and looking for a base. As a result, faulty turned out to be, only, transistor assemblies Q14 and Q15, as well as diode D13 (i.e., no power on the radio frequency block).

eleven). All radio telephones type Panasonic KX-T7980. 9080.

Malfunction: when conversation and at the same time, unpleasant rusties are heard in the tube. The antenna turned out to be faulty (it was less needed in the ear picking). The "spring" antenna is inserted into the brass adapter, on the other hand, a plate with a hole is inserted into the adapter. It is necessary to move the antenna and if the rustles will be heard in the tube, then it is necessary to simply enhance this adapter, but not much, but it can burst. If he still burst (or the compression does not help), then it should be just as necessary.

13). Panasonic KX-T9000, KX-T9080.

It does not work or dorubs the tube, there is no connection to the base. Check the power on the Scheme after the IC6 three-line chip, if there are less than the norm.

fourteen). All models of radio telephones "Panasonic" type 408.

The connection of the tube with the base due to the following reasons:

Disappears communication tube-base. Defect in the charge contact group on the base, - (Contacts are connected to the tube through the switch on the springs?!). When operating, the connection is failed and naturally PIN code. And it is immediately difficult to understand!

The radius of action is 1.5-2 meters strongly decreased. In the tube when communicating even at a short distance, weak noise is listening. Calculate that the malfunction in the tube (in the radio trap). Usually, yrth is to blame the sensitivity (knocks the field transistor (in Panas-ah most often) or bipolar (it is worth it here). Replacing the transistor of the result did not give. Further, only m / s TB31224F- 1st mixer, 1st heteroodine , 2nd mixer, etc. to a demodulated signal. Since it is problematic to replace it, I tried to replace the filter by 455 kHz. The problem was in it.

During the repair process, faced with a handset, the processor does not start and does not respond to the press of the buttons. It turned out that it stitches the diode D15 from the battery for the charge stimples. As a result, Q15 opens and the tube thinks that lies on the basis. Catching tester does not give a leakage. Thus restored 3 devices.

The range falls, then first of all it is necessary to check the strip filter in the tube (pos. Notation. FL405). Almost 100% is dead.

nineteen). Panasonic KX-T9050B, KX-T9080BX, KX-T9000, KX-T9100, KX-T9200, KX-T9150, KX-T9250.

Sign: Noise during conversation. Cause: When the battery is discharged, the voltage changes, which causes noise in the tube. Elimination. Change the resistance value of the R87 6,8KOM per 12kom.
Technical Support Service Panasonic.

twenty). After breaking down the shutdown mechanism (Panasonic 7980 tube and the like).

Constructively combined with the axis of the folding lid, by analyzing the concept of the tube, used to control the tube a regular rector with normally open contacts. Herkeon I placed in the area of \u200b\u200bthe LED tube under the board, securing it on the light guide so that its axis is located along the tube. In this position, the germ is most sensitive to the magnet, which is located in the end of the folding lid. Magnik I applied the rectangular from the magnetic furniture latch, its refinement was not required. The pound switch shovers the drop of solder. We connect to the general wire (-), the second to the 60th leg of the processor (to solder better to R105, which can be found on the left edge of the board: one of the contacts of the standard switch connects with two resistors, one (R49) on the shared wire, Another (necessary R105) to the D18 and the 60th leg of the processor). With a closed cover, the Herk tube lines provides a low level on the 60th leg of the processor that corresponds to the Close mode.

21). Radiotelephone Panasonic KX-T408 and similar.

Attention! If you have the appropriate information - share it with us! After all, it is precisely the information content of this subsection that depends on you.

When a quick inspection, the symptoms of both chapters turned out to be similar, the full failure of the launch was not the characteristic "PIP" when powering and torn inductance at the input of the telephone line.

The problem would seem unresolved. But after the diagnosis (I will remind you that before that, the radio telephones were in repairing workshops in a pair), it turned out that the fault of the power stabilizer 1117S, which gives food processor 3.3V.

Sitting a couple of stores and having heard that this chip is not even in the prices and wait for the new one for a long time, bought the old good LM317. Collected a simple stabilizer and turned on instead of the above chip.

The phone responded with joyful "peak".

Replaced the input inductance and checked the transistors of the set - everything is fine, the radiotelephones earned.

And it became another successfully a lively device more :) Sincerely, UR5RNP.

Radiotelephone Siemens. Gigaset 1010 Tube stands on PIN code, code is naturally unknown. We drag the EEPROM 24C04, read it PONI PROGRAMMEROM and look at the addresses: 27 and 28 there is a cherished PIN explicitly.

Panasonic KX-T9080, 9050 You can check the operation of the database transmitters and the tube as follows: We manufacture the equivalent of the load: I remove the 1.5V backlight lamp from unnecessary wrist clocks, we solder to it a small segment of the coaxial cable 50 Ohm and connect to the RF block of the block instead of an antenna. With a good transmitter, the bulb should brightly glow 30MW.

Radiotelephone Panasonic KX-T408 and similar.
In several devices of this type, a defect was found an external manifestation of which was as follows: with a good battery, the handset did not respond to pressing the keyboard buttons. When checking the oscilloscope, it was found that the clock generator 32, 768 kHz works, and at the inputs 5-7 microcontroller there are high voltage levels instead of low. Cause - Cutting a printed conductor connecting output 3 IC3 chips with an output of 33 microcontroller. We measure voltages at these conclusions, which should be the same and to have level of about 3.5V. If on the output 33 of the microcontroller, the voltage level is low, connect the indicated pins with a jumper from the MGTF wire.

As a result of high voltage in the power grid, the varistors often fail. They are used to protect against impulse overvoltage.

Apparatus SAMSUNG CK-5341ZR. After a while after switching on (from 15 minutes to several hours), it starts to go down the setting, or when switching from the channel, the station sometimes does not capture the station. Litted an APCH contour (in the strapping TDA8362 it is one) - it did not help. Replaced Stabilodron 31 Volt (in the setup circuit) - did not help. I changed the TDA8362 itself - there is no result. I remembered the memory (24C02) -not helped. Although the control processor was changed (SIM-135-2R C69540Y), but he is very expensive. The owners were inopened, and the iterations are long. According to this, I filtered low-voltage supply voltages by semiconductor capacitors, the tune voltage and changed the tuner itself. For two months, the device will not fail. Unfortunately, I cannot accurately indicate the reason - either the tuner itself, or knocked up the tightness setting for nutrition. The fact is that before that, I repaired a Soviet TV with a built-in remote to 55 channels, and the settings were also shot down, so the reason turned out to be lost part of the capacity electrolytic condenser 470 μF / 25 V 12 volts in the MP power supply 3-3. From the same voltage, the SAA1293 processor was also fed. In the image, the loss of the container did not affect.

Panasonic KX-T9000, KX-T9080: Does not work or dorubs a tube, no connection with the base. Check the power on the Scheme after the IC6 three-line chip, if there are less than the norm.

Panasonic KX-TCD951: You can not register the pipe - suck flash drive in the database
LG GT-7101, Seimens Gigaset: The signts are disappeared on the indicator - supper through thick paper (Watman) indicator loop
Panasonic KX-TC1019: No connection tube-base - to register the pipe. The 5-type code is specified on a paper label (in the database R909 next to the transcendent and supply power, to press 2.7, # and feed power, dial code. If everything is ok the pipe goes into a conversation mode)
Panasonic-and with a lever on the basis of contacts charging: no charging or matching - leaving contacts, removing springs
LG GT-7320: You can not exit the Direct Call mode - in the instructions in the Russian language inaccuracy - the output by double pressing (for 0.5 sec) the microphone shutdown buttons
Siemens Gigaset., Bt: no line - often 2 and 5 contacts in the telephone connector are used (domestic laces use 3 and 4)
LG CT-9130 and GT-7101 Use different polarity on contacts in power blocks
Primer, Sanyo CLT, CLA: At the failure of the generic relay, it is possible to replace the germ itself in domestic small
LG GT-9130A: noises in the pipe - can help the replacement of quartz 3.99 MHz in a quartz tube in a metal case
Panasonic-And new models (not DECT) when the pipe hit in water under the proof, conductive balls are formed in 98% of cases

All models of radio telephones "Panasonic" Type 408 disappears communication tube with a base due to the following reasons:
1. Big pulsation bp.p. And because of this, the database tube does not exchange PIN. The fault is eliminated by the replacement of the condenser 470 μF per 1000 mkf and more in b.p.
2. The failure of the stabilion in the tube charging circuit, the batteries are charged to an overestimated voltage and the database tube is not exchanged for the protection code (PIN).
3. Do not exchange PIN due to dirty contacts at the database charger or due to mechanical damage to these contacts.
4. Upset filters in the database and tube radio channels. There were many described setup methods if there is no normal frequency analyzers at hand. I suggest another one for those models that have a SPEAKER button on the basis. If you put the tube on the database, press this button on the database, and then remove the tube, then the algorithm for connecting the tube with the base. But with upset radio channels, speech signals are not heard. It remains in this position to adjust the filters and achieve the passage of both speech and the telephone line of the signals.

If in the radio telephones of the company Panasonic KX-T9080 Or to him like (folding lid) problems happened: the rod broke or the lid broke, it can be frozen using a simple device assembled on the K561LN2 microcircuit. This is the most original and simple solution to the problem I had to meet. The device is easy to assemble, it works very clearly, it does not have failures. Cover and rod can be bought, the price of the cover assembly (cover, cable, microphone, call) cost about 1000 rubles, the salumine rod will cost 300 rubles. Very often we meet customers who refuse to replace expensive nodes. And you lose money and customer.

In these phones, the call may replace the headset itself. Using fluoroplastic wire, it is necessary to connect the negative condenser with a C40 condenser (it is an unleasising a call diagram and the radiator itself located in the phone cover) with the contact p of the headphone, in Figure 1, a red dot.

2. The scheme replacing the S2 button (this button includes a handset when the cover is folded)

Scheme Figure 2 is collected on the K561LN2 chip. Moreover, only 14 part of the chip is used. Electrolytic capacitor C1 47 μF from 6, 3 to 16 volts. The scheme should be small, for the convenience of placing it in the case of the tube. SMD type resistance are mounted directly on the chip. The S3 button is a button to turn off the microphone. The tracks from the button to the diagram should be cut. Places of cutting tracks are shown in Figure by 3-grade crosses.

The chips of the chip 7 must be connected to the phone case housing at any convenient location. The foot 14 of the chip must be connected to the switch that turns off the handset Figure 5 The connection location is shown in a red dot.

The microphone can use the old one to be removed from the socket in the lid. It is possible to fix it in the hole that remains in the housing of the tube from the rod. When placing a microphone, observe the polarity. Minus at the microphone is connected to its body. Figure 6 shows the microphone connection locations.

Figure 6 shows the connection point S2 cm scheme.

Place the switch diagram you need under the phone board in the head phone area. No additional settings scheme requires.

3. How the modified tube works. When you receive a call to the tube or, if necessary, call you must press the button with a thumb on the button that previously performed the microphone shutdown function. After completing the conversation on the button, you must click again. The tube will go into the standby mode.

This refinement was tested on several Panasonic phones models. For two months, not a single complaint received from the owners of the converted devices.

We still wait for you from such letters, with personal experience in repairing household appliances
Dimon.

Restoring the lock cover of the battery compartment of portable tubes

When operating and repairing portable tubes of cordless telephones (BSHT), Panasonic and other manufacturers using similar body design often the need to restore the lock cover of the battery compartment occurs. The tongue-latch of the lock is made of plastic in the form of protrusions on the lid and with careless handling or falling the tube often rolled. This problem delivers a lot of trouble to users and repairmen, since various recovery options with glue, plastic inserts, etc., as practice shows, are short-lived. As a result, the lid has to fix with scotch.

It is proposed a more reliable, simple and tested way of recovery that does not require high time. Additional parts installed at the same time, as well as their places of their attachment to the lid are shown in Fig. 1a and 1b. The main part is a metallic spring plate 1, which will serve as a latch. It must be made independently in accordance with Fig. 2 for Panasonic CC-TC418 tubes, etc., or changing the size of a specific model. The plate can be made of beryllium bronze, producing thermal processing of the workpiece, or from any suitable metal, for example, spring contacts from the relay, etc.

Fig. 1. Installation of additional parts, as well as their locations for the lid

In the workpiece, drill (or punched) two holes with a diameter of about 1 mm, and then bend the latch tongue. The plate is fixed to the inside of the cover using a conventional stationery 2 (Fig. 1). Pre-in the lid along the place, two holes 3 with a diameter of about 1 mm are drilled, between which with the help of a cutting tool (for example, the sharpened end of the appliance, or a piece of the havice canvase, etc.) cut the shallow groove so that the bracket does not protrude from it. The hole 4 with a diameter of 1.5-2 mm is drilled at the edge of the lid so that through it it was possible by pressing on the plate with any metal rod (for example, a seboard, nail, etc.), squeeze the latch and open the lid.

Check and restore the antennas of portable cable phones of Panasonic

In many models of the BSHT of Panasonic firms, operating in the frequency range of 30-50 MHz, a spiral antenna is installed, the device and the appearance of which with a removed case are shown in Fig. 3. When operating, often the negligence is allowed overly large antenna bending and its deformation. As a result, the wire of the inner extension coil occurs. The normal operation of the phone is broken, noises appear, the radius of action is reduced, the quality and reliability of communication between the tube and the base. Not knowing this reason, some radio mechanics begin to look for a malfunction in the blocks of tube or databases. As the antenna of the tube is flexible, it gradually returns to normal position and externally signs of deformation become invisible. Therefore, before you begin repairing the electronic part of the BSHT, it is necessary to check the serviceability of the antenna.

Fig. 3 (a, b). Antenna device and the appearance of which with a lifted cover

An indirect evidence of its malfunction is to reduce the field strength, especially around the upper part of the antenna. This can be determined using an indicator of a field or high-frequency voltmeter (if its remote RF head with a specially elongated probe-antenna length of about 50 mm to bring to the upper end of the antenna 5). To carry out such an inspection, it is necessary to have some experience in repairing the BSHT of these models to compare the relative readings of the instruments with a good and defective antenna, as well as the values \u200b\u200bof the voltage directly at the transmitter output.

Similar homemade spiral antenna, rice. 4, can be used instead of broken telescopic (for example, in the KX-TS1025 model and others). As practice has shown, use the tube with a telescopic antenna is inconvenient, as the latter breaks quickly. To replace the plastic case (Fig. 4b) available on the tube (Fig. 4b), a spiral is inserted, filling its lower end to a metal base 4, which remained from a broken telescopic antenna.

Fig. 4. Homemade spiral antenna

To the upper end of the helix, a metal cap 5 is soldered, which is inserted from above into the opening of the cover b. For this, a short bronze or brass screw with a thread M4 or M5 is suitable, preferably with a massive head. The radius of the BSHT with such an antenna may decrease a little, but it becomes much more convenient to use the tube. If the antenna is in order, the malfunction should be sought in the blocks of the tube or database radio channels.

Malfunctions BSHTs associated with structural and production disadvantages of blocks and components

Panasonic Cordless phones can be divided into several generations on series, each of which is a modified version of the previous series. That is, despite the various functionality of the models provided by the control units, indications and various additional digital storage devices, we can talk about their serial versatility, according to the working range of 40 or 900 MHz. This provides high potential reliability and durability, and not only at the expense of good performance, but also due to high maintainability. In practice, this potential can be implemented only under the condition of neat operation, timely qualified maintenance and repair.

For example, if the user made moisture from entering the tube on the fee and did not turn off the battery (and did not turn into a workshop on time), the repair can be impossible or economically inexpedient. The same can occur if an additional malfunction arises due to non-accuracy and errors when trying to unskilled repairs, for example, when checking modes at chip conclusions (especially microprocessor) and their random closure; from the effects of static electricity through the tools; When using individual measuring instruments with network power supply not connected to the total ground bus; When using a conventional soldering iron that does not have a separation transformer. This is only part of the most common disorders allowed during operation and repair.

This often occurs with the tubes of CX-TS155B models, CX157B and close to them on a constructive device. For example, in many Panasonic tubes, as a result of a strong pressure on the lower keyboard buttons, the conductor is often closed under the contact layer of the Flash button. As a result, in addition to this button, the keys 1, 2 and 3. Sometimes it occurs in other models with different contact venues and jumpers deposited as the same layer on the set of boards. Attempts to restore contact by stripping this layer and soldering T.P. Success do not have. As practice has shown, in these cases the most reliable method of repair is the restoration of the required connection from the reverse order of the board. In this case (for CX-TS1558 and CC-TS1578V) output. 8 microprocessor (CPU) must be connected to the diodes of D34 diode or with a conductive platform on the board, as shown in Fig. 5. To do this, it is better to use the segment of the wire PEV-2 with a diameter of 0.12-0.15 mm.

Current phones of CH-TSuhh, Kh-TS14XX, KH-TS15XXX, work and a device are described in detail in, as well as other, more modern models of this generation, close to them on a constructive device and set of applicable electronic components to them. . In particular, small-sized flat dynamic heads are used, for example, PQAX3 P23 ZA.

Resistance to the windings of these heads from 110 to 150 ohms. A significant part of the problems arising during operation is related to them. First, the winding of the movable head coil is made with a thin wire, which is often broken. In this case, it becomes necessary to choose the replacement of the head, as it is difficult to purchase the original. Suitable for resistance is the Kapsul DEMSH-1A of domestic production. To install it in the tube, the capsuch must be removed from the plastic case. Then carefully disappear the conclusions of the caps from the contacts of the clamps and lengthen them with the wires of PEV-2 with a diameter of 0.15 mm. The metal housing of the capsule around the perimeter is wrapped with a tape or scotch. Put the wires, gluing them with glue from the side sides over the tape. Install the caps in the center of the tube head jack. So that he does not hang out, the free space between the walls of the nest and the capsule is filled with rolled into the ring of the foam strip, which is also fixed with glue. Thus, several tubes of various models were restored. The sound quality was estimated by users as good.

To better understand the reasons for the frequent failure of the branded heads of the specified type, it was necessary to study their device. It turned out that inside the head there is another coil (Fig. B), located along the edge of the case and wounded by a thicker wire.

Fig. 6. The coil inside the head

Petrov I.A. Panasonic radio telephones. Device and repair. M., 2003, MRB, Issue 1259.

Alla / 08.08.2016 - 09:38
hello! I also have such a problem: the phone is charging, but there is no connection, there are no sticks, what could it be? Write who knows the answer! Thank you!
Andrei / 02.05.2016 - 21:35
Panasonic KX -TGA820RU When dialing the number goes a long beep. Tell me the possibility of fixing at home 8916 375 6970
Hope / 03.01.2016 - 20:04
After charging, when you remove the tube from the base light bulb on the tube.
Hope / 03.01.2016 - 20:02
I began to burn a light bulb on the tube after charging. What it is?
Victor / 10/06/2015 - 23:00
Radiotelephone Panfsonik KX-TGA110UA - After charging, the display indicator shows that the battery is discharged (although when checking it turns out that it is charged completely) and when you turn on the phone, it will immediately turn off. Tell me where to look for the cause? No schemes. Thanks in advance for consultation.
angelica / 08/29/2015 - 11:05
phone Panasonic KH-TS1451B goes a solid beep when setting a number, who can have an instruction pliz, e-mail,
andrei / 07/31/2015 - 16:05
the call on the basis is heard and there is no on the tube.
lyudmila / 07/30/2015 - 21:59
i remove the phone and the inscription No connection Connect the adapter although everything is connected
Mikhail / 07.07.2015 - 08:36
No call call
galya / 04/05/2015 - 18:54
galya / 04/05/2015 - 18:49
panasonic KKH-TG1611 During the conversation, he began to peak heard, and who are talking to anyone. And then it turned off at all now picks up and turns off, so after every minute the screen swings not to call, it is impossible to call the new and day
Alexander / 03/26/2015 - 07:14
When talking in the tube I hear my echo. How to eliminate?
Eugene / 02.24.2015 - 12:27
Panasonic KX-TC1001. When dialing the number, the continuous beep does not disappear. No links. Dialing to me is excellent. Please help. Thank you.
DAKA / 01/29/2015 - 11:10
the sound of a call call, the screen shows the loudspeaker with a double cross at the exit of the termination, how to remove it I don't know, tell me, who can
Tatiana / 08/16/2014 - 11:00
the base does not respond to the tube. And the antenna flashes on the tube, the time and date dropped and I can not install, trying to install, and in response two beeps. What could it be?
Vadim / 12.07.2014 - 18:49
No incoming calls (call) Panasonic KX-TCD540RUM. I ask for help. Thank you
Sergey / 05/10/2014 - 22:27
In general, the radio telephones "Panasonik" are reliable as a tank. (According to the well-known saying) that the tank does not always correspond to reality. But the phone works for me more than 11 (or even 12 years old - I don't remember exactly) Small problems of course arose. I am so neat. But in my absence for the household I looked after a neighbor. He liked the color of my 2511st dirty from dirty hands in the garden. From the office where the "Halturil" written off the 21st year-colored body. He in the farm regularly smelled a couple of years until someone was stolen. The only thing that prevented is low power. At home, the neighbor's homes did not always have a reliable contact with the base device. I as "techny" found a way to solve the problem. I will not say. Yes, and the service of the company is good.
oleg / 25.11.2013 - 11:42
Panasonic KX-TG720RU calls me normally, but when I'm trying to try, then when you have a permanent beep, it does not disappear, continues to buzz. What a breakdown, you can do what, I will be grateful for the answer. post office
tsiganckow.alex / 07.11.2013 - 08:27
I see a lot of questions. Why no answers ??
galina / 25.10.2013 - 07:21
no call call when dialing numbers can not get through to us

1 2Vpeed

You can leave your comment, opinion or question on the above-mentioned:

Panasonic KX-TC408EN-B

Fault: The call works only if the phone lies on the database or if you press any button during the call.

Elimination: Check quarters on the pipe processor: to start in standby mode and frequency. Check the level of charging signal on the processor, not the proper legs of the processor and its strapping. Check the quartz resonator on the processor.

Voyager CL-1000

Fault: does not work the call with an incoming call on the basis or on the tube.

Elimination: probably loss of tank or electrolyte leakage, which is in the chain of the optocoupler, breaking the capacitor standing in the input circuit of the optocouples on the side of the telephone line. You can increase the container, reduce the resistor in the same chain. It is convenient to serve a change as a call of about 120V via a 1-2 kom resistor if there is no simulator or friend on another phone. If the phone is calling when the parallel device is set, then all actions on the contrary.

Panasonic KX-F90B

Fault: Does not react to any button, when turned on, it writes that everything is in order and runs the answering machine. The signal from the telephone network does not accept.

Remedy: Check if one of the buttons are pressed.

Panasonic KX-TC1025

Remedy: Replace C103 (IC Receiver Filter).

Panasonic TX-9280

Fault: a weak indicator glow, a bad battery message, although it is fully charged.

Remedy: Defect in diode D1 according to the scheme. Check for a 5.5 volt supply voltage on the anode, the voltage should be 5.2 volts on the cathode. If a voltage is below 4 volts on the cathode, then the diode must be replaced.

Sanyo CLT-55

Fault: Even with a fully charged battery, the BATT indicator flashes. Low.

Panasonic KX-T3611, 3621

Fault: No communication tube with base.

Remedy: Believe the propeller with the transmitter quartz in the tube.

Panasonic KX-T4311

Fault: During normal operation, the tube and the base is observed in the operation of the answering machine.

Elimination: Check the operation of the power supply for increased voltage ripples.

Nova RX-3610Tr

Fault: the phone is constantly challenged.

Remedy: leakage in the optocoupler call node on the base block.

Sanyo CLT-85KM

Fault: in the tube, with charged batteries, blinks the discharge LED.

Elimination: Check the processor and chains of strapping.

Sanyo CLT-75KM

Fault: Reducing the radius of action.

Remedy: Check output transistor in the database.

Sanyo CLT-55,65

Malfunction: Battery discharge light flashes, no connection, the battery is normal.

Elimination: Check the processor and chains of strapping.

Panasonic KX-T9080

Malfunction: During operation, crackle is heard.

Remedy: Bad contact in the connector between the HF unit and the board.

Panasonic kh-ts408

Fault: The tube does not work, while there is a keyboard survey.

Remedy: Replace Stabilodron D17 on the nutrition chip;

Panasonic kh-ts900

Fault: Reduced Radius.

Remedy: Check the filter by 903 MHz in the tube.

Panasonic KX-T9500

Malfunction: Unstable communication tube-base, the base tube is normal.

Remedy: Faulty noise detector in the tube. Replace the filter by 455 kHz.

Panasonic Kh-T7980, 9050, 9080, 9280

Malfunction: No connection Tube-base due to transmitter frequency care.

Elimination: Stripped capacitors in the RF block were oxidized.

Panasonic kh-ts408

Fault: Unable to configure the frequency of the transmitter.

Remedy: Replace varicap.

Fault: Does not work.

Remedy: Replace Herkeon ..
Ericsson GF788.

Fault: when turned on, it does not find a station, a long connection to the subscriber, when squeezing the case is a noticeable improvement.

Elimination: Check Contacts Going from Card Chip.

Harvest HT-4

Malfunction: Interference with the connection (in the form of rocquences and noise).

Remedy: Check the capacity in the power supply unit 4700 microf.

Siemens C35

Fault: The indicator of the level of the received signal - 1, the connection is unstable.

Remedy: Check the socket for connecting an external antenna.

Already quite a long time entered our life polypropylene pipes. They replaced metal and other water supply systems. I want to tell how to solder polypropylene pipes.

When I did the house heating decided to use polypropylene pipes, they are sufficiently inexpensive and very simple in the installation. But before you do soldering pipe You need to purchase the desired tool.

Those who love to travel and happen in different countries noticed that the sockets and forks are not the same everywhere. Also when ordering various devices and devices, for example, from China, it is proposed to choose various options: Eu Plug, US Plug, UK Plug, Au Plug. How not to make a mistake in this? Let's deal with more detail.

Evaluation 4.5 Voted: 15 One of the reasons for a home phone failure can be a banal non-payment. You can clarify the availability of debt or report on payment by service numbers specified in the accounts as well as in the Personal Account on the telephone operator's website. Please note that in case of disabling the phone for non-payment, the re-connection after making funds can take about a day.

In order to avoid such a situation, pay phone bills no later than within 20 days from the date of receipt. Consider that if the payment was made after the 28th day of the month, it will be credited to your account only in the following. Do not forget that you can pay the phone and before receipt of the receipt, after the 7th day of the month in any branch of Sberbank. To do this, it will be enough to just name your phone number.

Malfunction of the device

Perhaps the breakdown occurred directly in your. To check it out, try to reconnect it, for example, at the neighbors, or connect another device to the available wires.

If you have a radiotelephone, it is also possible that in the tube, and it needs to be replaced with a new one. The less the tube holds "Charging" outside the base station, the less power remains.

We understand the wires

The telephone cable (usually white) stretches from the total electrical tailor to the apartment, it is connected to a small telephone socket, and already a separate wire leads to the phone. Also, most modern phones are connected to the network. Check out the locations of all connections: 220V socket, telephone socket. Perhaps in one of the locations connections, the cable simply fell out of his "nest". If everything is in order, it is worth checking the wire throughout the telephone socket to - maybe it is torn or shifted. It happens quite often, especially if the cable is laid under the doorways in the room, the apartment has children, pets.

In the case of rupture, this breakdown can be fixed independently: the wires will need to be slightly cleaned and to twist renewed together, after which it is copped with a tape. The current will not hit you, besides, the polarity of the telephone wires is missing, and therefore, it is not possible not to be afraid to connect them incorrectly.

Other possible malfunctions

Here are some more common complaints of subscribers and the possibility of their decision:

Crack, rustle, interference. These are "symptoms" of a telephone line fault. In this case, it is also worth checking all the wires, and if they are integrity to contact the telephone company.

Badly audible. Most likely, the problem arose in the dynamics of the device. If the phone is old, then the speaker there is coal, and sometimes just knock on the tube. If the phone is modern and volume is exhibited at the "maximum", but still nothing can be heard, you will have to turn to the master or replace the device to a new one.

The phone does not respond to press press. Perhaps they just mad. Try to remove the cover and sweep the push-button mechanism as much as much as possible.

Approach to finding radiotelephones in the absence of their schematic diagrams.

Since all radio telephones are 90% from the same nodes (receiver, transmitter, encoder, etc.), you can construct a logical chain of processes arising from their work, based on the features of the functioning of a single-channel radiotelephone. The difference in the operation of radiotelephones belongs to the functions of control, which in single-channel phones are carried out by mechanical switches, and in multichannels - using microcontrollers. Consider an example of a logical chain of processes.

Turn on the handset. From this point on, the following processes occur during the free line signal appear: 1) the IN USE indicator is included; 2) the decoder of the identification system is triggered; 3) the supply voltage to the transmitter, 4) is turned on the key of a set relay; 5) When dialing the number, the INS indicator indicates the number of pulses of the set. It is necessary to trace the sequential execution of ethics of processes in the radiotelephone base over all chains, ranging from the antenna to the point in which the process is broken. As an example, the table shows the possible radiotelephones faults.

Characteristic Defect	Possible malfunctions
When dialing numbers not all numbers are recruited	1) Cutting the current circuits of the keypad. 2) The tube was filled with any liquid.
The charge indicator is not lit on the basis	1) The tube was filled with any liquid. 2) Charge chains are faulty.
The on / off key does not work.	1) Conducting key contacts work. 2) Cutting the conductive paths on the site from the key to the microcontroller.
When you click on the database, the phone search key does not have a call audio signal.	1) Upset the contour of the frequency detector, located in the tube. 2) faulty call buzzer.
When you click on the Tube, the Intercom keys, there is no signal on the database.	1) Upset circuit of the frequency detector located in the database. 2) Updated PC paths, UHF on the basis. 3) UH is faulty.
In the apparatus of Panasonic 7980,9080,9050, when opening the microphone cover, the switch-on LED on the tube does not shine.	A tube power plug is broken when the microphone cover is opened.
The microphone does not work in the Panasonic 7980,9080,9050 apparatus.	Flusted flexible loop on a plot from the microphone to the handset.
The Panasonic 7980,9080,9050 cannot be called on the tube.	Flusted flexible loop on a plot from the buzzer to the handset board.

The most common defects of radio telephones of various firms.

Consider defects inherent in all types of radiotelephones. So, if there is any liquid (water, tea, coffee, etc.) in the tube (water, tea, coffee, etc.), the following faults are possible: 1) The tube does not turn on either there are no sound signals confirmation of keys 2) no set when you press some tube keys: no sound Confirmation signals for troubleshooting do the following.

Disassemble the tube and take out a fee from it. Remove the flexible or rubber keyboard (depending on the design). If there are moisture keys on the contact sites, either semi-oxidation traces or remaining traces of dried liquids of unknown origin, it is necessary to wipe the board with a soft flannel dipped in alcohol. The same must be done with a flexible keyboard and with rubber keys.

After driving the alcohol, you must collect the tube. With more severe consequences of oxidation, some conductors can be triggered to restore the attack jumpers.

Another defect arising, as a rule, when liquid enters the database through the holes for charging contacts, leads to the absence of a battery charge of the tube. In this case, the charge indicator does not shine. To eliminate the defect, disassemble the database and examine it and the charging contacts. There are cases of destruction of supplying conductors, as well as printed conductors both on the basis and on the charge of charging contacts. Eliminate the disfect of washing the board with alcohol and the restoration of the destroyed conductors using jumpers.

Defects of batteries.

Very often due to improper use of the radio telephone, the batteries fail as this happens? In many models on the tube there is no power switch. The phone works all the time in standby mode (the tube is not on the basis). After passing all the levels of signaling of the discharge of batteries (sound and visual), the battery is discharged below the allowed level

You can check the performance of the battery using the tester. At first check the voltage value it must be no lower than 3 V (if there are three elements in the battery battery). If it is much lower, such as 2.5 V, this suggests that one battery element has failed. The next step is to check the presence of battery capacity The tester is set to the DC measurement mode at the limit of at least 3 and observing the polarity, it is necessary to connect the apparatuses to the battery for a short time (1-2 seconds). The arrow of the appliance arrow speaks about the good quality of the battery. If the arrow deviates to 100,. 200 mA, then it is most likely discharged. If after the 16-hour battery charge, the defect does not remove, the battery must be replaced.

Defect radio telephones inexpensive models 155, 418, 4010, 4020 brand Panasonic, which manifests as a lack of communication tube with the base.

The defect can be caused by the circuit disorder of the FM detector in the tube due to the mechanical impact on it (a blow on the floor, concussion, etc.). To eliminate the defect, disassemble the tube, remove the board and apply a flexible film of the keys or rubber keyboard to it. Connect the battery. Coding the handset, briefly connecting the board to the charging contacts of the base. Disconnect the board from the database and click the tube search button located on the database. Slowly rotating the dielectric screwdriver core of the FM Detector FM (it usually more than anyone else in dimensions and has spitz under a regular screwdriver) to the left and right, seek the appearance of the call signal. After determining the zone of the signal breaking, the core rotation is installed in the middle position. If this tube setting does not eliminate the defect, then the core of the function of the tube detector is returned to its original position and repeat operations with the database detector circuit, feeding the call signal from the tube to the database or including telephone mode in models without Intercom.

Defects of radiotelephones of models 7980, 9000 brand Panasonlc.

Design disadvantages of these models of the radio telephones of these models are known as the power switch and the flexible loop that goes to the microphone and buzzer board. This is most often breaking either the pin of the transmitter power switch, or the loop, or the axis of the cover. Consider two options for restoring radiotelephones.

Option 1. Remove the broken lid, if there is no possibility to purchase a new one.
Disassemble the tube, the loop is dropped and disconnected the cover with the microphone and the buzzer. Remove the mechanical parts of the pin, if it is broken. In the middle of the semicircular protruding part of the cover, several microphone holes with a diameter of no more than 2 mm are drilled. The drilling of the holes is produced outside the semicircular part of the cover, previously knocking the necessary number. The microphone, closed on all sides (except for the front) rubber or foam damper, is glued with a thermoclaim opposite the holes. From the printed circuit board, the microswitch is supplied with a pin. Remove the opening button of the lid and its spring. But the location of this button is set to any miniature switch with normally open contacts. The two conclusions of the microswitch are sealing to the board to which the remote terminal switch was soldered, on the positive output of the dynamics (headset) of the tube, without removing the old chain, solder the minus output of the electrolytic capacitor with a capacity of 10 μF, designed to voltage 10 V. Plus condenser output with The segment of the wire is sealed on the contact pad, to which the buzzer was previously attached.

Now the speaker will perform two functions: buzzer and dynamics (headset). This is possible because the work of these devices is spaced over time, i.e., at the same time they never work. The conclusions from the microphone are soldered on the same areas: alarm - on the signal, and the housing is on the platform of the overall wire. After rework, the charge of batteries will be carried out in the same way as if there is a lid.

Option 2. Only the power pin is broken, and the loop and the lid are intact.
Open the cover of the tube, remove the broken part of the pin, leaving only those parts that provide the rotation of the lid. Remove the limit switch from the board. Remove the protective cover of the microphone compartment. In the middle of the top of the lid, the miniature magnet is glued and the protective cover is closed. On the printed circuit board, it is accurately opposite to the magnet, the germ of the closing chain is glued when the magnet is removed. The two withdrawals of Herkeon are soldered to the fees to which the remote microswitch is soldered.

Sanyo radiotelephones defects. Lack of communication tube with the base.

To remove the defect, you need to unscrew the screws on the pipe cover, remove it, carefully remove the charging terminals and remove the board from the locks, pulling away the side walls of the tube housing. Special attention should be paid to the microphone, which is inserted into the rubber casing. It must be carefully removed from the board (first remove the microphone from the casing, and only then the casing from the board). Then, turning the board, with a magnifying glass with a 4 or 10-fold increase, view the integrity of printed conductors in the soldering area on the case of the RF block screens (at its corners). The characteristic feature of the defect is the break of two conductors: near the place of soldering the corner of the screen and next to it (the conductor is 0.6 ... 0.8 mm width). Cliffs are restored by copper conductors. This work requires great accuracy and skills. Battery is inserted to check the defect to check the defect, apply the keyboard on the fee and turn on the tube.

Wear hand turning key.

The defect is restored in two ways:

1. Cut with a blade old conductive contact on the rubber keyboard. Pick out of the old phthy-tailed phids with conductive contacts. Without misappropriate contact check the trigger on the inclusion when "Patch" is pressed and only after a positive result, the "new" contact is glued to the remote area.

2. From the old flexible keyboard films, one contact with an adhesive part around it is cut and glued to the board opposite the triggered contact. You can not delete your contact.

Defect B. Panasonic KX-T9050, KX-T9080 - There is no or unstable communication base with a tube. I recommend setting up the RF blocks, this is done as follows:
Tube: We carry the jumper to enter the mode, press the PAUSE button (noise is heard in the dynamics). The rotation of the trim capacitors Tx and Rx is set to 1.8V voltage in VXO control points for Tx and Rx, respectively. For this operation, it is desirable to have a repair cable, but you can do without it and without it, to check the control points with a short segment of the wire (counter. Points are on the bottom of the RF block), the voltage is conveniently controlled by an oscilloscope of 0.5V / cases. The setting is quite "sharp", rotating rapids must be required by a dielectric screwdriver. I use screwdrivers made from strips of fiberglass with remote foil and sharpened accordingly. It is also helpful to adjust the supporting generator of 12,800 MHz. Connect the base to the tel. Lines, set the connection, the oscilloscope is viewing the signal at the output of the tube discriminator - 400Hz.- tone line. The rotation of the trimmer is achieving the maximum incompatible amplitude of the signal. Adjust the contour of the discriminator we achieve the same. Base: configured similarly. For input in the test mode, three counter are shred. Points, then served power.
Before setting, tighten all the screws in RF blocks.

As a result of high voltage in the power grid, the varistors often fail. They are used to protect against impulse overvoltage.

Panasonic KX-T9000, KX-T9080: Does not work or dorubs a tube, no connection with the base. Check the power on the Scheme after the IC6 three-line chip, if there are less than the norm.

1. Refinement of the call.

Rice1

2. The scheme replacing the S2 button (this button includes a handset when the cover is folded)

rice2.

Scheme Figure 2 is collected on the K561LN2 chip. And only 1 \\ 4 part of the chip is used. Electrolytic capacitor C1 47 μF from 6, 3 to 16 volts. The scheme should be small, for the convenience of placing it in the case of the tube. SMD type resistance are mounted directly on the chip. The S3 button is a button to turn off the microphone. The tracks from the button to the diagram should be cut. Places of cutting tracks are shown in Figure by 3-grade crosses.

Rice3

Figure 5.

Figure 6 shows the connection point S2 cm scheme.

Fig. 6.

Place the switch diagram you need under the phone board in the head phone area. No additional settings scheme requires.

This refinement was tested on several Panasonic phones models. For two months, not a single complaint received from the owners of the converted devices.

We still wait for you from such letters, with personal experience in repairing household appliances