CN209358684U - A kind of TV SKD test power supply - Google Patents
A kind of TV SKD test power supply Download PDFInfo
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- CN209358684U CN209358684U CN201822278715.XU CN201822278715U CN209358684U CN 209358684 U CN209358684 U CN 209358684U CN 201822278715 U CN201822278715 U CN 201822278715U CN 209358684 U CN209358684 U CN 209358684U
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- test voltage
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Abstract
The utility model discloses a kind of TV SKD test power supply, comprising: for exporting standby voltage, the power panel of the first test voltage and the second test voltage, the first ammeter and the first connection jaws；First connection jaws include for connecting the first terminal of standby voltage, the Second terminal for connecting the first test voltage and the third terminal for connecting the second test voltage；First ammeter is electrically connected between the output end of the first test voltage of Second terminal and power panel；Power panel further includes ON/OFF signal receiving end, and ON/OFF signal receiving end connects forth terminal, and when ON/OFF signal receiving end is high level, power panel exports the first test voltage and the second test voltage.The battery for following mainboard need not be just dismantled simultaneously when dismantling mainboard at the scene, can improve working efficiency with test power supply power supply, easy operating process after dismantling mainboard.
Description
Technical field
The utility model relates to a kind of TV SKDs to test power supply.
Background technique
With being constantly progressive for Color TV Technology, TV is electric from CRT → rear-projection → plasma → LCD → LED → OLED, laser
It constantly evolves depending on, product, the continuous renewal of technique follows product also to change correspondingly in technological service after sale.Maintenance mode from
Before 10 years one electric iron, a kit, BGA welding stage till now, serially printing tool, computer software programming, air pressure gun
Etc. standard configurations maintenance tool.When technician visits to user family, if judgement is main board failure, most of main board failure cannot
It is solved in user family, needs to overhaul TV motherboard thus, but the voltage of standard configuration in order to obtain, while overhauling mainboard, also need
Power panel is dismantled together so as to the TV motherboard power supply removed, however, (power supply plate suqare big, land occupation side) operate it is numb
It is tired, it often will increase workload.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above (deficiency), provides a kind of TV owner
Plate tests power supply.
In order to solve the above technical problems, the technical solution of the utility model is as follows: a kind of TV SKD test power supply, packet
It includes: for exporting standby voltage, the power panel of the first test voltage and the second test voltage, the first ammeter and the first wiring
Mouthful；First connection jaws include for connecting the first terminal of standby voltage, the second end for connecting the first test voltage
Son and the third terminal for connecting the second test voltage；First ammeter is electrically connected at Second terminal and power panel
The first test voltage output end between；The power panel further includes ON/OFF signal receiving end, ON/OFF signal receiving end
Forth terminal is connected, when ON/OFF signal receiving end is high level, power panel exports the first test voltage and the second test
Voltage.
Its working principles are as follows:
Step 1: the mainboard removed to need repairing is connected the first connection jaws by connecting line, mainboard connects distant
Control receiver board.
Step 2: open TV SKD test battery main switch, test power standby voltage output end directly export to
To main board power supply, mainboard is in standby electromechanics pressure after obtaining standby voltage.
Step 3: issuing starting-up signal (or manually actuated mainboard button) to mainboard with remote controler, mainboard is switched on
After signal, mainboard actively exports high level signal all the way from inside and gives TV SKD test power supply, and high level passes through connecting line
It is sent to ON/OFF signal receiving end, after ON/OFF signal receiving end obtains high level signal, TV SKD test power supply is obtained
After starting-up signal, normal the first test voltage and the second test voltage of exporting is different in order to test maintenance mainboard to main board power supply
Often, meanwhile, the first ammeter is connected to the output end of the first test voltage, can be when the first test voltage is to main board power supply
Pointer has reaction, if mainboard internal short-circuit, ammeter pointer offset is excessive, after testing staff observes, it can be determined that the
Corresponding circuit is faulty in the corresponding mainboard of one test voltage output end, powers off at once, to prevent from further burning out master
Plate.
More than, due to providing a kind of test power supply in this technology, need not just be torn open simultaneously when dismantling mainboard at the scene
It unloads the battery for following mainboard, dismantles the test power supply power supply that can use this technology after mainboard, easy operating process improves
Working efficiency, simultaneously as devising the first ammeter, mainboard can quickly judge whether mainboard is short-circuit after powering on.
In some embodiments, further include the second ammeter, second ammeter be electrically connected at third terminal and
Between the output end of second test voltage of power panel.
When maintenance, there can be reaction by pointer when the second test voltage is to main board power supply, if short inside mainboard
Road, then ammeter pointer offset is excessive, after testing staff observes, it can be determined that the corresponding mainboard of the first test voltage output end
Interior corresponding circuit is faulty, powers off at once, and to prevent from further burning out mainboard, mainboard can quickly judge to lead after powering on
Whether plate is short-circuit.
In some embodiments, the numerical value of the standby voltage, the first test voltage and the second test voltage is respectively as follows:
5V、12V、24V。
By statistics, the standby voltage of most TV SKDs is 5V, and booting voltage is 12V, mainboard power amplifier supply voltage
For 24V, these three voltages are common TV motherboard booting and common voltage.
It in some embodiments, further include switch S1 open in usual, the switch S1 open in usual is electrically connected at ON/OFF
Between the output end of the standby voltage of signal receiving end and power panel.
Working principle are as follows:
For the mainboard for needing 12V, 24V that could be switched on, increase switch S1 open in usual here as force switch, when use
Force switch is adjusted to opening state,
After opening mainboard test power switch, mainboard test power supply directly exports standby voltage (+5V).When only need+
When 12V or+24V, it is closed open switch S1, after open switch S1 is closed, ON/OFF signal receiving end is connected to standby voltage,
That is, ON/OFF signal receiving end obtains high level voltage, then the mainboard tests power supply normally output+12V ,+24V.
The above are the TV SKDs for being adapted to another internal structure, when the TV SKD obtains standby voltage
Afterwards, ON/OFF signal receiving end is given without exporting high level inside TV SKD, such situation is suitable for taking force switch
Mode makes it directly in the first test voltage end output+12V, in the second test lead output voltage+24V.
It in some embodiments, further include the second connection jaws, the second connection jaws setting forth terminal, the described 4th
Terminal connects the output end of the second test voltage of power panel.
Second connection jaws can directly export+24V power voltage supply.
In some embodiments, the quantity of first connection jaws is three.It is connect in this way, being provided with three identical first
Line mouth can test three pieces of TV SKDs simultaneously.
In some embodiments, further include for show the first display lamp LED1 of the second test voltage working condition,
For showing the second display lamp LED2 of the first test voltage working condition and for showing standby voltage working condition
Three display lamp LED3.For the above display lamp for showing corresponding output voltage working condition, lamp is bright, illustrates to work normally, lamp does not work
It does not work then.
Detailed description of the invention
Fig. 1 is that the TV SKD of one embodiment of the utility model tests power supply schematic diagram；
Fig. 2 is the first connection jaws schematic diagram that TV SKD shown in Fig. 1 tests power supply.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.
As shown in Fig. 1~2, a kind of TV SKD test power supply, comprising: for exporting standby voltage, the first test electricity
Power panel, the first ammeter and the first connection jaws 10 of pressure and the second test voltage；First connection jaws 10 include being used for
Connect the first terminal of standby voltage, the Second terminal for connect the first test voltage and for the second test voltage of connection
Third terminal；First ammeter be electrically connected at the first test voltage of Second terminal and power panel output end it
Between；The power panel further includes ON/OFF signal receiving end, and ON/OFF signal receiving end connects forth terminal, when ON/OFF signal
When receiving end is high level, power panel exports the first test voltage and the second test voltage.The standby voltage, the first test
Voltage and the numerical value of the second test voltage respectively can be with are as follows: 5V, 12V, 24V.
To meet the above power panel requirement, the above power panel can be using the 42TTS series of power of group, Skyworth production
Plate.The power panel is provided with standby voltage output end, the first test voltage output end, the second test voltage output end, ON/OFF
Signal receiving end is respectively used to output standby voltage, the first test voltage, the power panel of the second test voltage and reception ON/OFF
The level of signal receiving end, more specifically, the first test voltage is as the booting voltage to mainboard, the second test voltage conduct
To the power amplifier voltage of mainboard.In addition, set four connecting terminals in the first connection jaws 10, it is respectively as follows: first terminal, Second terminal,
Third terminal, forth terminal；Wherein first terminal is electrically connected at standby voltage, and Second terminal is electrically connected the first test electricity
Pressure, third terminal are electrically connected the second test voltage, and forth terminal is electrically connected ON/OFF signal receiving end.Of course, it is possible to know
Road, in order to cater to the ground terminal GND of power panel, this first connection jaws 10 is also provided with the 5th terminal (figure, which is not infused, to be shown),
5th terminal connects ground terminal GND.
Under normal work, above first connection jaws 10 can pick out simultaneously: standby voltage (first terminal), the first test electricity
(Second terminal), the second test voltage (third terminal), ON/OFF signal receiving end (forth terminal) are pressed, by using different companies
Wiring connects mainboard test power supply and mainboard, the TV SKD of different voltages requirement is adapted to, specifically, connecting line
Port, the first connection jaws 10 can be made same specification, that is, can be inserted into mainboard test power supply, but the line in port
Can then variety classes be divided into:
For example, for only needing standby voltage (first terminal), the first test voltage (Second terminal), ON/OFF signal to connect
The TV SKD of receiving end (forth terminal), then there are three conducting wires in the port of connecting line, this three conducting wires respectively correspond first
Terminal, Second terminal, forth terminal；For only need standby voltage (first terminal), the second test voltage (third terminal),
The TV SKD of ON/OFF signal receiving end (forth terminal), then the line in corresponding connecting line port is also three, still,
Respectively correspond first terminal, third terminal, forth terminal；For needing standby voltage (first terminal), the first test voltage
The TV SKD of (Second terminal), the second test voltage (third terminal), ON/OFF signal receiving end (forth terminal), then phase
The line in connecting line port answered is four, corresponding with first terminal, Second terminal, third terminal, forth terminal respectively.More than
As long as same TV SKD test power supply changes it and adapts to different masters connection to be tested from the connecting line of mainboard
It is required that (corresponding connecting line can be prepared when design, when encountering corresponding TV SKD, can choose using suitable
Connecting line).
When use, its working principles are as follows:
Step 1: the mainboard removed to need repairing is connected the first connection jaws by connecting line, mainboard connects distant
Control receiver board.
Step 2: open TV SKD test battery main switch, test power standby voltage output end directly export to
To main board power supply, mainboard is in standby electromechanics pressure after obtaining standby voltage.
Step 3: issuing starting-up signal (or manually actuated mainboard button) to mainboard with remote controler, mainboard is switched on
After signal, mainboard actively exports high level signal all the way from inside and gives TV SKD test power supply, and high level passes through connecting line
It is sent to ON/OFF signal receiving end, after ON/OFF signal receiving end obtains high level signal, TV SKD test power supply is obtained
After starting-up signal, normal the first test voltage and the second test voltage of exporting is different in order to test maintenance mainboard to main board power supply
Often, meanwhile, the first ammeter is connected to the output end of the first test voltage, can be when the first test voltage is to main board power supply
Pointer has reaction, if mainboard internal short-circuit, ammeter pointer offset is excessive, after testing staff observes, it can be determined that the
Corresponding circuit is faulty in the corresponding mainboard of one test voltage output end, powers off at once, to prevent from further burning out master
Plate.
More than, due to providing a kind of test power supply in this technology, need not just be torn open simultaneously when dismantling mainboard at the scene
It unloads the battery for following mainboard, dismantles the test power supply power supply that can use this technology after mainboard, easy operating process improves
Working efficiency, simultaneously as devising the first ammeter, mainboard can quickly judge whether mainboard is short-circuit after powering on, more specifically
It says on ground, it should be to judge whether boot-strap circuit is short-circuit.
It more preferably, further include the second ammeter, second ammeter is electrically connected at the of third terminal and power panel
Between the output end of two test voltages.
When maintenance, there can be reaction by pointer when the second test voltage is to main board power supply, if short inside mainboard
Road, then ammeter pointer offset is excessive, after testing staff observes, it can be determined that the corresponding mainboard of the first test voltage output end
Interior corresponding circuit is faulty, powers off at once, and to prevent from further burning out mainboard, mainboard can quickly judge to lead after powering on
Whether plate is short-circuit, more specifically, it should be to judge whether power amplifier is short-circuit.
It more preferably, further include switch S1 open in usual, the switch S1 open in usual is electrically connected at ON/OFF signal receiving end
Between the output end of the standby voltage of power panel.
When use, working principle are as follows:
For the mainboard for needing 12V, 24V that could be switched on, increase switch S1 open in usual here as force switch, when use
Force switch is adjusted to opening state,
After opening mainboard test power switch, mainboard test power supply directly exports standby voltage (+5V).When only need+
When 12V or+24V, it is closed open switch S1, after open switch S1 is closed, ON/OFF signal receiving end is connected to standby voltage,
That is, ON/OFF signal receiving end obtains high level voltage, then the mainboard tests power supply normally output+12V ,+24V.
The above are the TV SKDs for being adapted to another internal structure, when the TV SKD obtains standby voltage
Afterwards, ON/OFF signal receiving end is given without exporting high level inside TV SKD, such situation is suitable for taking force switch
Mode makes it directly in the first test voltage end output+12V, in the second test lead output voltage+24V.
It more preferably, further include the second connection jaws 20, forth terminal, the forth terminal connection is arranged in second connection jaws
The output end of second test voltage of power panel.Here the power supply terminal of a 24V is reserved.
More preferably, the quantity of first connection jaws 10 is three.As shown in Figure 1, the first terminal of three the first connection jaws,
Second terminal, third terminal and forth terminal are opposite to be connected to, in this way, three identical first connection jaws are provided with, it can be simultaneously
Test three pieces of TV SKDs.
It more preferably, further include for showing the first display lamp LED1 of the second test voltage working condition, for showing the
Second display lamp LED2 of one test voltage working condition and third display lamp for showing standby voltage working condition
LED3。
The above display lamp is for showing corresponding output voltage working condition, and lamp is bright, illustrates to work normally, and lamp does not work then not
Work, display lamp can be individually series in corresponding circuit, corresponding circuit can also be parallel to, with reference to Fig. 1.
In figure, description positional relationship only for illustration, should not be understood as the limitation to this patent；Obviously, this reality
It is merely examples for clearly illustrating the present invention with novel above-described embodiment, and is not to the utility model
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all practical new at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model right and wants within the spirit and principle of type
Within the protection scope asked.
Claims (7)
1. a kind of TV SKD tests power supply characterized by comprising for export standby voltage, the first test voltage and
The power panel of second test voltage, the first ammeter and the first connection jaws (10)；
First connection jaws (10) include for connecting the first terminal of standby voltage, for connecting the first test voltage
Two-terminal and third terminal and forth terminal for connecting the second test voltage；First ammeter is electrically connected at
Between Second terminal and the output end of the first test voltage of power panel；
The power panel further includes ON/OFF signal receiving end, and ON/OFF signal receiving end connects forth terminal, when ON/OFF believes
When number receiving end is high level, power panel exports the first test voltage and the second test voltage.
2. TV SKD according to claim 1 tests power supply, which is characterized in that it further include the second ammeter, it is described
Second ammeter is electrically connected between the output end of the second test voltage of third terminal and power panel.
3. TV SKD according to claim 1 tests power supply, which is characterized in that the standby voltage, the first test
Voltage and the numerical value of the second test voltage are respectively as follows: 5V, 12V, 24V.
4. TV SKD according to claim 1 tests power supply, which is characterized in that further include switch S1 open in usual, institute
Between the output end for stating the standby voltage that switch S1 open in usual is electrically connected at ON/OFF signal receiving end and power panel.
5. TV SKD according to claim 1 tests power supply, which is characterized in that it further include the second connection jaws (20),
Forth terminal, the output end of the second test voltage of the forth terminal connection power panel is arranged in second connection jaws.
6. TV SKD according to any one of claims 1 to 5 tests power supply, which is characterized in that described first connects
The quantity of line mouth (10) is three.
7. TV SKD according to any one of claims 1 to 5 tests power supply, which is characterized in that further include being used for
Show that the first display lamp LED1 of the second test voltage working condition, second for showing the first test voltage working condition show
Show the lamp LED2 and third display lamp LED3 for showing standby voltage working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822278715.XU CN209358684U (en) | 2018-12-29 | 2018-12-29 | A kind of TV SKD test power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822278715.XU CN209358684U (en) | 2018-12-29 | 2018-12-29 | A kind of TV SKD test power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209358684U true CN209358684U (en) | 2019-09-06 |
Family
ID=67802292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822278715.XU Active CN209358684U (en) | 2018-12-29 | 2018-12-29 | A kind of TV SKD test power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209358684U (en) |
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2018
- 2018-12-29 CN CN201822278715.XU patent/CN209358684U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Shenzhen anshida Technical Service Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: Shenzhen Anshida Electronic Service Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |