In detail: do-it-yourself changhong TV repair from a real master for the site my.housecope.com.
This section contains circuits lcd (LCD) TVs CHANGHONG .
You can download any of the schemes, and it's completely free, without registration, without SMS, directly from the site without file hosting. All schemes are in attachments at the bottom of the page.
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Perhaps the following information will be useful to you:
* If you need programs for viewing downloaded files, you will find them in the SOFT section
* If you have any questions about the repair, we invite you to the FORUM
* If you are looking for where you can find specialists at the place of residence, go to the RADIOKOMPAS section
* If you yourself are engaged in repairs, then you have the opportunity to inform about yourself in the Radio compass section - just contact the FEEDBACK section
Schematic diagram LCD TV CHANGHONG LT26GJ LT32GJ LT32 GJ Chassis LS01 + DVB-T
Schematic diagram LCD TV CHANGHONG Chassis LS02 AX32_68
Schematic diagram LCD TV CHANGHONG Chassis LS03
Schematic diagram LCD TV CHANGHONG Chassis LS06W
Schematic diagram LCD TV CHANGHONG Chassis LS07
Schematic diagram LCD TV CHANGHONG Chassis LS08
Schematic diagram LCD TV CHANGHONG Chassis LS09C
Schematic diagram LCD TV CHANGHONG Chassis LS10
Schematic diagram LCD TV CHANGHONG Chassis LS12
Schematic diagram LCD TV CHANGHONG Chassis LS15
Schematic diagram LCD TV CHANGHONG Chassis LS17
Schematic diagram LCD TV CHANGHONG Chassis LS23
Changhong 29D85. Chassis CH-10.
Composition: percent control S3P8849XZZ, memory 24C08A, signal processor TDA8844, TDKS - BSC70E2, low frequency - TDA7052, personnel - TDA8350, power supply - TDA4605.
The diagram is attached below.
 |
Video (click to play). |
The malfunction is as follows - when you turn on the power button, the indicator on the front panel does not light up, so there is no sound or image. Does not respond to the remote control. If you turn off the power button, then after 3 seconds the LED flashes red.
I checked the power supply (in this TV, the power supply is on a separate board) after turning on the TV, there are no 8 volts and 5V-2 at the output of the power supply, everything else is there. I looked at the diagram and realized these voltages are controlled by the V862 transistor, which is connected to the STD-BY signal. Currently, if you turn on the TV, then 5 volts are supplied to the V862 base, that is, the transistor is open, I tried to close it (I closed the emitter base) after that, 8 volts and 5V-2 appeared at the output of the PSU, but nothing changed from this, that is the TV did not start.
I also checked the breakdown of the output lowercase and personnel, everything is fine, I also want to try to change the memory.
I came to the conclusion that the TV set is included in the bowl. mode but why ?? the LED does not light 5 volts per percent comes and the fact that nothing changes from the appearance of 8 volts and 5V-2, I think that the percent is faulty. management.
Who has dealt with the CH-10 chassis, or who can give any advice.
CH-10DR_chassis_ (H29D80) .rar 706.59 KB Downloaded: 939 times
Changhong E32F868EB TV does not turn on
Started checking with the power supply
Fuse the whole field-effect transistor is OK
checked the harness of the LD7750RGR microcircuit no suspicions
Replaced the microcircuit; packets of pulses appeared on the gate
spittoon oscillogram removed shutter - source amplitude 3 - 1.5 volts
then break in generation and repeat
The packs are repeated with a frequency of the order of 5 hertz
Measured secondary voltages were overestimated 5v was about 7v
I checked the optocoupler PC817 and AZ431 analogue TL431 both are faulty
the optocoupler breakdown of the LED rings in both directions
the zener diode rang and checked against a good one, too.
Replaced faulty parts, everything worked as it should
CHANGHONG TV Service Centers and Workshops
Moscow, 1st Varshavsky proezd, building 1A, p. 3 look on the map
CHANGHONG Authorized Service Center
Volgograd, st. Kuznetsova 49 show on the map
CHANGHONG Authorized Service Center
Barnaul, st. Pavlovsky Trakt, d. 251, TC Europe view on the map
CHANGHONG Authorized Service Center
Volgograd, street of the 8th air army, 35 view on the map
CHANGHONG Authorized Service Center
Ufa, st. 50 years of October, 13 to look on the map
CHANGHONG Authorized Service Center
The authorized service center "CPS - URAL" carries out warranty and post-warranty repairs and maintenance of electronics and household appliances of a wide variety of brands in Ufa. High quality ser ...
Voronezh, Leninsky Ave., 160 view on the map
CHANGHONG Authorized Service Center
CHANGHONG Authorized Service Center
Yekaterinburg, st. Shartashskaya, 10 to see on the map
- Repair of audio and video equipment: TVs, camcorders, satellite receivers, speaker systems, audio players
CHANGHONG Authorized Service Center
LLC "TRANSSERVICE-Yekaterinburg" is the largest authorized service center in the Sverdlovsk region, specializing in professional repair and installation of consumer electronics. Today is TRA ...
Additionally: delivery of a TV to / from a service center, on-site TV repair at home or in an office, replacement of consumables, TV installation (connection, setup), sale of spare parts
Volgograd, st. 50 years of October, 17 view on the map
CHANGHONG Authorized Service Center
CHANGHONG Authorized Service Center
The authorized service center "CPS - URAL" carries out warranty and post-warranty repairs and maintenance of electronics and household appliances of a wide variety of brands in Ufa. High quality ser ...
Kostroma, st. Kommunarov, d. 5 to look on the map
CHANGHONG Authorized Service Center
- delivery of the CHANGHONG TV for repair by the service center- - on-site repair of CHANGHONG TV at home or in the office
- - service of replacement of consumables
- - services for the installation and configuration of equipment
- - sale of spare parts for CHANGHONG TV repair.
To install or configure the purchased equipment, you can use the services of specialists from authorized organizations (authorized service center), who will carry out all the necessary work for the further operation of the TV. If there is no service center at the indicated address or is located at a different address, please let us know.
Troubleshooting Guide
TROUBLESHOOTING FOR SIMPLE FAULTS
Missing
image,
there is no sound and
indicator is on
1. The power cable is not connected.
2. There is no power.
Missing
image,
there is no sound when
the indicator is on
nutrition.
1. Contrast, brightness, sharpness
images or volume
set at minimum
level or the sound is muted.
2. Signal cable is wrong
contrast, brightness,
sharpness of the image and
volume level.
In AV mode, on-screen
displays a blue background
and a mode indicator.
There is no signal at the input, because
signal cable not connected
or not connected correctly.
Connect correctly
signal cable.
signal cable low
quality.
quality source
signal or signal
cable.
Picture and / or sound
with interference.
2. Near the TV is
equipment that leads
to the appearance of interference.
equipment away
from the TV.
Colors in PC mode
displayed
incorrect
Wrong mode selected
color temperature.
Change the settings
color temperature.
fuzzy, shaking
or with black
horizontal
stripes (in the
PC).
2. The image is not
centered.
Image settings
performed incorrectly.
Enter the settings menu
for PC mode, select
See Auto Adjustment for
performing automatic
settings as well
adjust setting
Phase for elimination
Problems.
1. There is no signal at the input or
audio is incorrectly connected
cable.
2. Incorrect sound settings.
3. Sound blocking is on.
2. Adjust the settings
TV unexpectedly
turns off.
2. Power failure.
3. No signal.
TV, then when
indicator goes off
power, turn on
powering the TV.
3. If there is no signal in
within 5 minutes
TV turns off
automatically.
pily
My knowledge in the repair of this type of equipment: Lover (I do it only for myself)
Scheme availability: No
My knowledge in the repair of this type of equipment: Lover (I do it only for myself)
Scheme availability: No
MATRIX: T315HW05 V.0
MAIN: LS18 JUG7.820.924-1
25Q32A
25F40
24C04
H5PS5162FFR х3
PS331
AP1534
TAS5711
Tuner: CH DTI1-E4I2RH 1308FI
T-CON: T315HW05 V0 / V1 31T12-C04
TPS65161
M168 1575
24C32
LED Driver: T370HW04 V0 37T06-D04
U201: HV9982 x2
U401, U402: G1564 х2
18N20GS x4
P2504BDG x4
PSU: MP138 REV: 1.1
U2: L6599D
IC2: 1606B
IC3: 6M944
The voltage on the power supply was measured + 24v-rate, + 5v-rate, + 12v-jumps 11.97-12.2
External examination did not reveal anything. lane board
Added by (17/03/2016, 16:26:21)
———————————————
Here is a link to the video. When you enable the freeze frame function, the picture stands and the stall continues.
You can download the file after registration registration | entrance
v56
It is certainly possible to repair the TV yourself without resorting to the services of a TV master. What is required for this? Basic technical literacy, the ability to hold a soldering iron in your hands and the ability to carry out elementary measurements with a simple tester. A large amount of information about typical defects that the Internet is replete with can induce even a doubting one to start restoring a broken device. Belief in one's own strength is an excellent property, but the probability of getting a completely “killed” apparatus as a result is quite high. Maybe we'll call the master after all?
So, let's get down to disassembly. Remove the cover from the TV if it is secured with screws or self-tapping screws. In addition to fasteners, modern TV models also have a clever system of latches, which can be quite difficult to open without breaking them or scratching the case. Craftsmen have experience in opening devices and the necessary devices for this, bearing in mind that the connection of the lid to the case resembles the device of a modern TV remote control, made entirely with latches.
- power supply, which can be made separately or in conjunction with an inverter or led backlight unit
- motherboard
- inverter or led backlight unit
- matrix with controller (T-con)
- local keyboard, photodetector
The power supply unit is designed to generate stable voltages of a given power required for the correct operation of the rest of the television chassis components. It can be in standby or operating mode, depending on the command from the motherboard. It is the most vulnerable link in case of external adverse influences such as power surges, lightning discharges, etc. The TV's power supply unit must use high-quality components that can ensure its uninterrupted operation in a wide range of input voltages in a severe temperature regime.
The motherboard is the “command post” of the entire device. Provides control, switching, adjustments and settings of the TV as a whole. Executes user commands from the remote control and local keyboard. It has a developed architecture of data storage devices in the form of Eeproom, Flash, Nand Flash, SpiFlash chips, RAM connected to a central or graphic processor and signal processing devices via the I2C bus - a serial data bus using two bidirectional communication lines SDA and SCL.
An inverter or LED backlight unit ensures trouble-free operation of light sources in the form of lamps or LEDs for backlighting the liquid crystal matrix. It is controlled by commands from the motherboard to turn on and change the brightness of the backlight. They have a serious protection structure that blocks the system not only in the event of a lamp or LED line malfunction, but also in the event of a certain imbalance in their operation. Inverter transformers most often fail when diagnosing faults in this unit.
Currently, among the TVs of the budget line, models began to appear where all the blocks presented above are made on one board.Power supply, backlight driver, motherboard are assembled in one unit. The possibility of diagnosing such a device is hampered by the lack of free access to electrical circuit diagrams and firmware for it. We advise in this case to contact the professionals. A telemaster will repair a TV at home or in a workshop at a very low cost by today's standards, give a guarantee for the work performed and spare parts, save you time and nerves.
When deciding to repair your TV yourself, you should soberly assess your technical and professional skills and ask yourself the question: "Will I be able to fix my TV without harming him or myself." After all, no one has canceled 220 volts yet, as well as the rules of electrical safety when working with electrical installations. It is one thing if you irrevocably ditch the “box” - this is only material loss, loss of health is a more significant thing. Think and make a decision: "Is it worth the candle?"
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The Changhong brand entered the market in 1958 in China. Today it is one of the largest manufacturers of household appliances in China, and this company is actively cooperating with the military-industrial complex of the PRC. Among the range of Changhong products, TVs occupy a special place. They are of excellent quality, but breakdowns also happen, so the repair of Changhong TVs, including urgent at a service center, is a demanded service in any city in our country.
According to experts, the most popular are LCD and plasma TVs from the Changhong brand. In particular, LED TV models E-19C718 AB, E-24C718 AB, E-22C718 AB and E-32F898 EB are in high demand. They have good build quality, beautiful designs, and are fairly inexpensive. A distinctive feature of such devices is also a small screen thickness, which makes such TV sets very convenient to use.
- The most common problems with TVs from the Changhong brand are:
- lack of reaction of LCD TV or "plasma" to commands from the remote control;
- indicator malfunction, i.e. the inability to determine whether the receiver is working or not;
- decrease screen brightness;
- loss of sound.
- In addition, the device may not turn on at all or turn on with an uncharacteristic delay, turn off on its own or not display a picture or part of it.
If we are talking about an LCD TV, then the number of complex operations include replacing broken matrices. Only an experienced service technician, who must have experience in handling such complex devices, can repair such a breakdown.
In exceptional cases, you can fix the TV yourself. For example, the TV may not turn on due to a power problem. Such a malfunction may be due to the refraction of the power cord, which you can replace yourself. The inability to turn on the TV can be caused by problems with the power supply caused by a power surge in the household power supply. By the way, a surge protector, which is very inexpensive, can help protect your TV from this kind of breakdown.
If a software failure occurs, then it is better to entrust its firmware to the master. However, it makes sense to take protective measures as well. In particular, since such a defect can be viruses, it is not recommended to connect flash drives to the TV that have not been checked for viruses.
Our company will gladly carry out repair of Changkhong TVs at home.
- The main advantages of contacting us in the workshop:
- the ability to make repairs urgently;
- constant availability of high-quality spare parts in the warehouse;
- qualified staff of specialists with many years of experience.
- We deliver the equipment to the service center: delivery will arrive to you within an hour
- Defining the problem
- We agree on the price with you: we name the price for repairs + cost of spare parts
- We order spare parts from our warehouse
- Chinim
- We check the quality
- interfering operation
- does not turn on and does not start
- long turn-on process
- displaying a separate part of the image
- not responding to commands from the remote control, etc.
- Home visit in 1 hour
- We work 24/7
- Free of charge
diagnostics - Repair any
difficulties - Free shipping
- Full guarantee
2 years
No plume, self-tapping screws in a bag
Basic composition as HT580-P5
No line sync
On the matrix connector, we are looking for sync pulses or their similarity, we see frames at # 2, go straight from the Vout TB1238.
We unsolder - the frames ran.
There is something like SSI, but the period is not 64 uS, we unsolder and see that the signal comes from a matrix, such as a testpoint. Also with the rest of the incomprehensible.
We look at the TA8696 datasheet, which needs at least some SI for binding, we find that the 30th leg is ringing with 1 leg of the matrix.
The exact timing of the repair will become known only during the repair itself. The more serious the breakdown, the longer the repair will take.
After the repair, the engineer monitors the turned on TV for 24 hours. If the defect reappears, the TV will be repaired again.
We repair all famous brands of TVs: Sony, Samsung, Philips, LG, Sharp, Toshiba and many others.
You can find a complete list of models on this page.
Matrices, broken screens, remotes and body parts
We do not restore flooded equipment
You can find out about the geography of our trips here
In modern LCD and LED changhong TVs, images are as realistic as possible in color and contrast. Obtaining such quality is impossible without technically complex solutions. Dust, moisture and other unfavorable external environmental factors damage the electrical circuits, which are responsible for high-quality color reproduction, brightness and contrast. Urgent repair of TVs changhong Metro Boulevard Rokosovsky will be required if the image is distorted, lost color or completely disappeared. Problems with sound are also common. When it disappears or extraneous noise becomes audible, you need to seek help from the specialists of our company to diagnose the device and further troubleshoot.
Our company restores the functionality of the defective changhong TV, while guaranteeing its perfect service. All work will be performed at a high competent level and inexpensively and urgently. In this case, the type of TVs does not matter: LCD, LCD, 3D or plasma panel. The well-equipped workshop provides favorable conditions for the work of specialists.
Inexpensive changhong TV repair service will be relevant in the following cases:
Even with minor symptoms of malfunction, the possibility of increasing problems is not excluded. In case of inactivity, the cost of repairs will increase slightly. Experienced specialists of our company visit the client at home. To place an order, you should contact the manager and arrange a visit in advance. In the event of a breakdown of a large-sized plasma, it will be carefully examined by a qualified technician at home, there is no need to transport it to a service center.
At home or at a service center
departure of the master on the day of treatment
repair warranty up to 12 months
• Departure and diagnostics of the master (in case of repair)
• Departure and diagnostics (in case of refusal to repair)
The specialist arrives at a convenient time for you. Possible urgent call and arrival of the master in 60 minutes
No overpayments and "hidden" payments - in 90% of cases you will find out the cost of repairs by phone
Discounts for seniors and people with disabilities 5% -10%
We have a quality control department. Consultations are available to you on the toll-free line +7 (800) 700-73-70
Departure of a specialist is possible at any address in Kaliningrad and the nearest settlements
During our work, it has already been completed over 150 thousand applications.
Daily we process about 300 requests
Krasnodar, Kommunarov st., 268V
Repair of TVs, MP3 players, hobs, built-in ovens, gas stoves, microwave ovens.
Manufacturers: Changhong, 10moons, 31st CENTURY, 3Cott, 3EYE, 3Q.
Voronezh, Plekhanovskaya st., 18
Repair of TVs, car acoustics, car TVs and monitors, car alarms, MP3 players, car radios.
Manufacturers: Changhong, 3Cott, 3Q, 4Go, 4Good, 4Home.
St. Petersburg, Bolshaya Pushkarskaya st., 64 (entrance to the House of Life building)
Repair of TVs, car acoustics, car TVs and monitors, MP3 players, car radios, acoustic systems.
Manufacturers: Changhong, 3Q, 4Good, A&D, A&V, A. Lange & Sohne.
Yekaterinburg, Belinsky st., 232 (from the right side)
Repair of TVs, car TVs and monitors, acoustic systems, karaoke, microphones, music centers.
Manufacturers: Changhong, 3Q, A&V, ACME, AD NOTAM, AEG.
Novosibirsk, Frunze st., 5 (office 718A)
Repair of TVs, car acoustics, car TVs and monitors, Car washes, electrical equipment, MP3 players.
Manufacturers: Changhong, 3COM, 3Cott, 3EYE, 3M, 3Q.
Moscow, Altufevskoe sh., 22
Repair of TVs, speaker systems, karaoke, radio tape recorders, music centers, headphones.
Manufacturers: Changhong, Philips, Samsung, Sony, AEG, BBK.
Smolensk, Tvardovskogo st., 1B
Repair of TVs, car acoustics, car TVs and monitors, Car washes, MP3 players, car radios.
Manufacturers: Changhong, 01THE ONE, 1 TOY, 10moons, 2N, 2VV.
Mineralnye Vody, 22 Party Congress, pr-t, 135/2
Repair of TVs, MP3 players, car radios, acoustic systems, dictaphones, karaoke.
Manufacturers: Changhong, 10moons, 31st CENTURY, 3COM, 3Q, 3vi.
Kropotkin, Krasnaya st., 131
Repair of TVs, MP3 players, car radios, acoustic systems, dictaphones, karaoke.
Manufacturers: Changhong, 10moons, 31st CENTURY, 3Cott, 3EYE, 3Q.
Georgievsk, Salogubova st., 10
Repair of TVs, MP3 players, car radios, acoustic systems, dictaphones, karaoke.
Manufacturers: Changhong, 3Q, 4Go, A.C. Ryan, A4Tech, ABS.
The organization was checked by the administration of the portal and provided documents officially confirming the conduct of these activities, as well as the reception of citizens or the presence of a workshop at the specified address.
Need Changhong TV Repair? Then we offer you urgent and high-quality repair of digital equipment at home or in a service center. Does your Changhong TV have a malfunction or has it stopped working altogether? This problem always arises suddenly and greatly upsets the owners of the equipment. However, you can always contact our service center, where you will be offered prompt and, most importantly, high-quality elimination of any problems. Our company specializes in the repair of LCD (LCD), LED, 3D, Smart and Changhong plasma TVs in Moscow and the Moscow region, St. Petersburg, Yekaterinburg, Nizhny Novgorod, Voronezh, Chelyabinsk.
We work seven days a week. We take on work of any complexity. We issue a 2-year warranty for all types of repairs.
If you are uncomfortable with a TV malfunction, then you just need a Changhong TV repair at home. After a long day at work, you came to your apartment, undressed, made yourself some tea, and made yourself comfortable on the couch. All that's left to do is turn on the TV and relax after all the hustle and bustle. You turn it on, but, imagine, it doesn't show! Then you quickly need to do something or visit a service where Changhong TVs are repaired. There are typical examples of faults: interference on the screen - first check the antenna, if it is not the antenna - the channel or the tuner is faulty, the sound and picture are missing - the radio channel is faulty, only the sound has disappeared - look for a fault in the low frequency amplifier or in the sound processor, only the image has disappeared - the reason is the video amplifier.
There are many more examples of different faults. In most cases, you cannot do without examining the TV by masters. It's great if you have a warranty card on hand - it can save your expenses. If you decide to repair Changhong TVs, our company will be happy to help you. In case of any malfunction of your TV, our professionals will carry out free diagnostics, carry out free delivery in both directions, tell you which parts are the problem and what needs to be replaced. Our service center performs the repair of Changhong TVs at a very high level. Contact us - and you will not regret it!
You leave a request for delivery at a convenient time for you. The application can be made by or using the online order form.
Free diagnostics within one day is carried out in the conditions of the service center. At home diagnostics are paid - 500 rubles. and takes from 10 minutes. Based on the results of diagnostics, the cost of work is determined. You have the right to refuse to repair the Changhong TV if the announced price does not suit you.
Upon completion of all work, you will be given a contract and a strict reporting form BSO-1. Based on these documents, you can contact us in the event of a warranty case.
Our master makes diagnostics in a service center on high-tech equipment within one day. On departure from 10 minutes, depending on the malfunction of the Changhong TV.
Delivery of equipment in Moscow is free of charge. Check the cost of travel outside the city with our specialists.
In the conditions of the service center, diagnostics are performed free of charge, if you order the repair of the Changhong TV. On-site diagnostics cost 500 rubles.
Departure of the master at home within Moscow is free of charge.
The warranty period varies and is up to 365 days. For more information, check with our specialists.
We work with individuals and legal entities, with government agencies. Cash and bank transfer, Visa, MasterCard. After the repair, you will be issued with an act of completion and a cashier's receipt.
Do you need Changhong TV repair for some reason? Changhong TV stopped turning on? Picture or sound disappeared for no reason? Can't adjust your device and find your favorite channel? The best way to solve all these problems is to contact our company, which employs experienced professionals with extensive experience in solving the most difficult problems in the field of household appliances repair.
A modern digital TV is a high-tech device that uses compact matchhead-sized microcircuits instead of obsolete lamps. Therefore, without experience, relevant skills and knowledge, you simply cannot restore the normal performance of your equipment. Moreover, self-intervention in its electronic circuit can threaten the loss of warranty and accidental damage to expensive parts. That is why our team of specialists who repair Changhong TVs are always waiting for your call, promptly arrives at the specified address and fixes any malfunctions in just a couple of hours.
Our company carries out repair of LCD, LED, LCD, 3D, plasma TVs Changhong. By contacting us, you can count on not only fast and high-quality repair work, but also on the following advantages:
- performing professional diagnostics using the latest control and measuring equipment that can quickly find out the causes of a malfunction;
- the ability to quickly repair a device endowed with fashionable functions, such as Smart-TV, equipped with a digital or analog tuner, Wi-Fi module;
- availability of all the necessary tools to carry out the repair;
- the opportunity to profitably buy all the spare parts required for the repair of Changhong TVs;
- providing services at the customer's home, so that he does not need to deliver the device to the workshop.
We can guarantee that in the vast majority of cases we will bring any device back to life right in your home. But sometimes you may still need a permanent repair of the Changhong TV. For example, such a need arises when the matrix fails, in case of serious breakdowns of plasma panels.In this situation, we will pick up the device ourselves and return it back after the completion of the repair work.
Regardless of whether Changhong TVs are being repaired at home or in a workshop, you can get a guarantee from our service for all work performed and installed spare parts. It will confirm the quality of the repair, and will also allow, in the event of repeated problems, to call a specialist completely free of charge. At the same time, here you will find affordable prices for all works, you will be able to take advantage of advantageous special offers.
Our service center has vast experience in repairing digital equipment both at home and in a service center. Our specialists repair Changhong TVs in Moscow, St. Petersburg, Voronezh, Chelyabinsk, Yekaterinburg, Nizhny Novgorod.
- master_tv
- Offline
- Moderator
- Electronics Repair Engineer
- Messages: 3613
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Compound:
Panel: ECG315B3-L03
MAIN: JUG7.820.1004-1 Sticker: 920A1GR012280
SPI FLASH: 25Q32H-100HIP
Tuner: CH DTI1-E4I1VH 1425FG
T-CON: V315B5-XCN1
PSU & INVERTOR Power Supply: MP123T-CH
Fault: there is no image due to the firmware update.
Solution: flashing.
Changhong TV repair.
Consulting and taking orders for the repair of Changhong TVs,
daily, from 8.00 to 22.00, by phone:
0995484466, 0970620002, 0631159989.
Telemaster Vladislav Ivanovich Cheverdinsky.
The features of Changhong TV repair are no different from the repair of modern TVs of other brands. Malfunctions of TVs can be of a varied nature, because a TV is a complex device, and its operation is affected not only by a change in the properties of some of the components (or a chain of components), but also by a violation of the software - if in the TVs of the first releases equipped with processor control, programming was limited memorizing the parameters of the image state, as well as the set values of the channel settings and the initial volume level were stored in it. Soon, the organs for mechanical adjustment of the geometric dimensions of the image, the range of color-difference signals disappeared in televisions - from that time on, adjustments became available only to those who had a technique for entering the service mode of a TV, and a technique for exiting it (which is also important). If the remote TV that came with it (native) is lost or destroyed, then the other, even despite successful work in the “user mode”, often does not have the properties of access to the service mode of the TV. Therefore, try to keep the original remote control.
Component malfunctions in your TV can manifest themselves in different ways. Periodic malfunctions with a traceable pattern of their manifestation, or not amenable to any logic, are typical malfunctions, according to the manifestations of which an experienced TV technician can determine the TV model. It is important to pay attention to the “symptoms” that may have appeared recently, when the Changhong TV of one model or another was still before the aggravated state. Often, this information facilitates the task of finding and eliminating the causes and effects that have arisen when repairing a Changhong TV at home, at the place of use.
The quality of your TV depends largely on the quality of the signal being sent. Interference on the picture and soundtrack of the TV can be observed when the devices that generate this signal, for example, the “volycable” tuner, or the satellite tuner, are malfunctioning. It is useful to verify the quality of the signal in one way or another. In the event that the TV is faulty, it is better to refrain from the user being excessively active, cleaning the dust, etc. Careless handling of the “stuffing” of the TV can aggravate the situation. Even if the antenna input of the tuner breaks off, or another port is damaged, it is better not to try to restore it yourself without having the skill.
The most important thing to pay attention to in the first place is safety. As a rule, the TV manual contains a section on this topic. Read it yourself, tell your loved ones.
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If the TV does not turn on on the first try, as usual, and this time is increasing more and more, you should understand the reason for this. For TVs older than two to three years, the turn-on delay often occurs due to a violation of the power supply mode. Further operation of the TV with such symptoms, as a rule, provokes secondary malfunctions, in the event of which the repair is often not cost-effective. Timely identification and troubleshooting of Changhong TVs contributes to the rational use of its resource.
