In early February, he received a phone call from his father and said that the television at home was broken. (I live with my parents in two adjacent cities)
I quickly turned over the Taobao order (Haier LE39PUV3), which was bought on March 3, 2013. It took less than three years in more than two years and contacted Haier for after-sales. Have to say that Haier's after-sales rate is still good, went on the same day. Later, my father called and said, the master took a look, said that your TV's movement board is broken, for a 500, you have to purchase manufacturers Balabala. .
what? 500? Zhang Damo's recent push of a 39-inch Haier TV card is only about 1000!
domestic
Mobile terminal: MOOKA module card 39A3 39-inch LED LCD TV (1366 * 768) 1199 yuan Gome online mobile terminal price of 1199 yuan package, with the 32-inch price is almost, but need to pay attention to is that this 39-inch TV, resolution of 1366 * 768, the same as the mainstream 32-inch, not 1080P, mindful of friends need to pay attention, but to parents to watch TV programs can still be used. The value of Friends broke the original: mobile terminal orders 1199, although the brand in general, but the price of 39-inch LCD has been very good ... ... MOOK Mike Niu | Value 22 Comments 56 Favorites 15 direct link View Details Had to let his father find a home repair shop, the result is to take it back to test, to disassemble the fees should be 200.
The father told me that repair is not worth it, throw it!
I said no, I will!
When I was thinking of a child, the toy was broken. Under the lamp at night, my father took the electric iron, which was a little bit of it. Didn't the artifact recover the next day? The father's glorious image has been deeply branded in my heart, and the most expensive part of the TV itself should be the LCD screen. If the LCD screen is not broken, it is worthwhile to fix it. The period of three years of sewing and supplementing is past, but the spirit of cherishing the objects is still necessary.
The weekend went back home and learned about the situation.
TV normal state: flash blue light, start a few seconds.
Current status: Always flashing blue light does not start, LCD screen does not light.
Out of the process: After the TV was turned off for the last time, the parents went out and they had the habit of pulling the power out of the gate. After they came back, they plugged in the power and they couldn't turn on the power.
Steps to be solved:
First, find the reason
Second, the program
Third, the implementation of the program
Start now
First, find the reason
Disassemble first, observe
Have to admire the current LCD display on the two boards, a LCD screen. The top piece is the movement board.
And all the interfaces are all snapped and there is no need for welding at all.
I use Haier's post-sales opinion as the main basis, after all, official. A glance at the blue light will confirm that it is a movement board problem, and basically it can exclude other parts. Then, Baidu's search for a blue light that doesn't turn on is more sure of this view.
Finally, you can basically confirm that it is a problem of the system. You can solve it by just flashing.
Second, the program
After determining the problem with the movement board, two solutions were identified: 1. Direct replacement of the movement board. 2, own hands brush machine
Haier LE39PUV3 motherboard _ Taobao search Taobao search is the most intelligent product search engine, through the operation of big data, accurate understanding of goods and users, providing accurate personalized search experience. Direct links to s.taobao.com First of all, Taobao Baidu keywords "Haier LE39PUV3 motherboard" found out n businesses.
First browse through it, especially for product introductions. Almost all motherboard pages have emphasized that ordinary users should not purchase, and the return of products that cannot be operated because of their own problems must compensate the merchant for a certain percentage of losses. And the motherboard is divided into new, disassembled, and disassembled and repaired.
Looking for a few good credit merchants began to agree to consult. Yes, editing a message “Haer't LE39PUV3's mainboard? Is it brand new or used?†The group sends it out. Then it is like 1 vs9 Go game. It discusses the TV model and problem status with many businesses. Basically, they can give you confirmation of the problem.
Only, for the new movement board 200, teardown 120-150 range, repaired about 100.
2, own hands brush machine
Brush is not as simple as a mobile phone or a router. It needs to get the chip down and use special tools to write it.
The system downloads through a certain forum, but does not know what to use to brush the system, then at the same time reflects the benefits of Taobao, directly ask the business yo!
But something is a bit expensive!
Third, the implementation of the program
Personally think that the motherboard is best to renew, disassemble and repair is not assured, but new or not I personally can not be identified. Personal maintenance is the best, but the tools are more expensive. There is no second chance to use it after a single use. It is also considered that salted fish are used again. After all, professional tools are difficult to handle. In summary, we have found a compromise and we are looking for people to repair it. We can't find it locally. In the end, Almighty Taobao 50 found a repair. The motherboards are all bayonet mounts. It is very easy to remove and install them. Before mailing, they also specially photographed and the master confirmed the status of the TV. It wasn't long before mailing back and installing them normally!
Once again, confirming my point with the maintenance master is indeed a system problem!
Summary: When I was young, no matter what was broken, my father took out the instruction booklet with a circuit diagram, and then came up with a box containing various diodes and capacitors. Then, with the smell of the electric iron, he started to take a look. Smoke, electronic products are actually good. It seemed to me that it was an artifact in my young age. Now I also have children. I also make some toys for children from time to time. It is only found that modern people may be rich. Many electronic products obviously have problems such as poor contact or capacitor explosion. Small ones are replaced by a whole motherboard, and large ones are replaced by whole appliances. Of course, I'm not talking about individual users. It's those maintenance masters who are reluctant to do this. Maybe it's just a problem in our six-line small city?
Ps. Finally thank you for your knowledge Taobao sellers. Ha ha
Dc gear motor, namely gear reduction motor, is based on ordinary Dc Motor, coupled with gear reduction gearbox.
The gear reducer is used to provide low speed and large torque.
At the same time, the gearbox with different deceleration ratio can provide different speed and torque.
Generally different industries, using different power dc motor, generally adopt custom parameter design pattern.
What are the four ratings of the Dc Gear Motor? The DC gear motor is often seen in our industrial production. Here Shunchang Motor gives you the knowledge of its four ratings. To talk about
1. Rated Current: The rated current is the maximum current allowed to flow through the armature winding of the DC deceleration motor in accordance with the specified operating mode, in A.
2. Rated Voltage: The rated voltage is the maximum additional voltage that the armature winding of the motor can work safely, unit V. It
3. Rated Speed: Rated speed refers to the rotational speed of the Gear Reducer Motor in the rated voltage, rated current and output rated power under the circumstances of operation, the unit is r/min. Such
4, rated power: rated power refers to the motor in accordance with the specified mode of operation can provide output power. For motor, rated power is the output of mechanical power on the shaft.
precision instruments and meters,automobile industry, medical equipment, consumer electronics, household appliances, electric glass doors and Windows,etc., wide application range
Features: gear motor drive precision, small volume, large torque, low noise, durability, low energy consumption, customized power design,easy installation, easy maintenance;Simplify design and save space.
Method of use: the best stable in horizontal plane, installed on the dc gear motor output shaft parts, cannot use a hammer to knock,knock prone to press into the dc gear motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
Geared motors should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a geared motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
Geared motors should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of geared motors is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you Looking forward to your inquiry. Welcome to our factory.
Gear Motor,Micro Gear Motor,Small Gear Motor,Bike Lock Gear Motor
Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com