CN202153775U - Set top box main board detection device and set top box test system - Google Patents
Set top box main board detection device and set top box test system Download PDFInfo
- Publication number
- CN202153775U CN202153775U CN2011201977044U CN201120197704U CN202153775U CN 202153775 U CN202153775 U CN 202153775U CN 2011201977044 U CN2011201977044 U CN 2011201977044U CN 201120197704 U CN201120197704 U CN 201120197704U CN 202153775 U CN202153775 U CN 202153775U
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- relay
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- top box
- set top
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Abstract
The present utility model discloses a set top box main board detection device and a set top box test system. The detection device is composed of a main board power supply end, a short circuit test circuit, a power supply board voltage end and a relay. The relay is composed of a common end, a normally closed contact and a normally open contact, the common end of the relay is connected with the main board power supply end, the normally closed contact of the relay is connected with an input end of the short circuit test circuit, and the normally open contact of the relay is connected with an input end of the power supply board voltage end. In the device, the common end of the relay is connected with the main board power supply end, the normally closed contact is connected with the input end of the short circuit test circuit, the normally open contact is connected with the output end of the power supply board voltage end, after powering on to supply the relay, the normally open contact is shut, the passage is switched to the input end of the power supply board voltage end, thus a main board is power-supplied by a power supply board, and a function test can be realized. By adopting the device, the phenomenon of probe short circuit during the process of testing a set top box is effectively avoided, and a master chip of the main board is protected.
Description
Technical field
The utility model belongs to the STB production field, relates in particular to a kind of checkout gear and set top box testing system of STB mainboard.
Background technology
Along with STB is constantly accepted by people, the user is increasing to the demand of STB, and this also proposes very high requirement to STB production.
When producing the STB mainboard, need carry out functional test to the STB mainboard, test fixture is the simulation system test, soon mainboard and power panel, keying panel and other subplates couple together and carry out functional test.
In the prior art, test fixture adopts probe to connect each function port of mainboard, links to each other with subplate with probe again.But because the spacing between the pin of socket is very short, generally have only 2.54mm, short circuit easily between when test probe, and if between the solder joint because phenomenon is welded by the improper company of causing of welding, also can cause short circuit between probe.Voltage to the master chip power supply on the mainboard is 3.3v, if the corresponding probe probe short circuit corresponding with the high voltage on next door of this voltage will burn out master chip.
To sum up, how avoiding the phenomenon of set top box testing process middle probe short circuit effectively, prevent that the master chip of mainboard from being burnt, is one of direction of STB production field research.
The utility model content
The purpose of the utility model is to provide a kind of checkout gear and set top box testing system of STB mainboard, is intended to avoid the phenomenon of set top box testing process middle probe short circuit, the master chip of protection mainboard.
The utility model is achieved in that a kind of checkout gear of STB mainboard, and said device comprises motherboard power supply end, short-circuit test circuit and power panel voltage end, also comprises a relay,
Wherein, Said relay comprises common port; Normally-closed contact and normally opened contact; The common port of said relay connects said motherboard power supply end, and the normally-closed contact of said relay connects the input of said short-circuit test circuit, and the normally opened contact of said relay connects the input of said power panel voltage end.
Wherein, the port of said motherboard power supply end is provided with a probe, and the common port of said relay connects the probe of said motherboard power supply.
Wherein, said device also comprises indicating device, and said indicating device connects said short-circuit test circuit.
Wherein, said indicating device comprises buzzer and light-emitting diode, and wherein, said buzzer connects said light-emitting diode.
The utility model is achieved in that a kind of set top box testing system, and said system comprises the checkout gear of STB mainboard, and said device comprises motherboard power supply end, short-circuit test circuit and power panel voltage end, also comprises a relay,
Wherein, Said relay comprises common port; Normally-closed contact and normally opened contact; The common port of said relay connects said motherboard power supply end, and the normally-closed contact of said relay connects the input of said short-circuit test circuit, and the normally opened contact of said relay connects the input of said power panel voltage end.
Wherein, the port of said motherboard power supply end is provided with a probe, and the common port of said relay connects the probe of said motherboard power supply end.
Wherein, said device also comprises indicating device, and said indicating device connects said short-circuit test circuit.
Wherein, said indicating device comprises buzzer and light-emitting diode, and wherein, said buzzer connects said light-emitting diode
In the utility model, be connected to the motherboard power supply end through the common port with relay, normally-closed contact is connected to the input of short-circuit test circuit; Normally opened contact is connected to the output of power panel voltage end; Energising back to the relay power supply after, the normally opened contact adhesive of relay switches to passage the input of power panel voltage end; Realize power panel to main board power supply, and then carry out functional test.The utility model has been avoided the phenomenon of set top box testing process middle probe short circuit effectively, has protected the master chip of mainboard, has improved the production efficiency of STB.
Description of drawings
Fig. 1 is the structural representation of the checkout gear of the STB mainboard that provides of the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the structural representation of the checkout gear of the STB mainboard that the utility model provides.Said device comprises motherboard power supply end 11, short-circuit test circuit 12 and power panel voltage end 13, also comprises a relay 14.
Wherein, Said relay 14 comprises common port 141; Normally-closed contact 142 and normally opened contact 143; The common port 141 of said relay 14 connects motherboard power supply end 11, and the normally-closed contact 142 of said relay 14 connects the input of said short-circuit test circuit 12, and the normally opened contact 143 of said relay 14 connects the input of said power panel voltage 13.
In the practical implementation process, the port of said motherboard power supply end 11 is provided with a probe (scheming not shown), and the common port of said relay 14 connects the probe of said motherboard power supply end 11.
Wherein, the normally-closed contact of said relay 14 connects the input of said short-circuit test circuit 12.
Wherein, said device also comprises indicating device (scheming not shown), and said indicating device comprises buzzer and light-emitting diode, and wherein, said buzzer connects said light-emitting diode.In the practical implementation process, said indicating device connects said short-circuit test circuit 12.
In the practical implementation process, said short-circuit test circuit 12 alternately connects 5V voltage and ground connection GND.
The operation principle of the utility model is:
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (8)
1. the checkout gear of a STB mainboard, said device comprises motherboard power supply end, short-circuit test circuit and power panel voltage end, also comprises a relay,
Wherein, Said relay comprises common port; Normally-closed contact and normally opened contact; The common port of said relay connects said motherboard power supply end, and the normally-closed contact of said relay connects the input of said short-circuit test circuit, and the normally opened contact of said relay connects the input of said power panel voltage end.
2. the checkout gear of STB mainboard as claimed in claim 1 is characterized in that, the port of said motherboard power supply end is provided with a probe, and the common port of said relay connects the probe of said motherboard power supply end.
3. the checkout gear of STB mainboard as claimed in claim 1 is characterized in that, said device also comprises indicating device, and said indicating device connects said short-circuit test circuit.
4. the checkout gear of STB mainboard as claimed in claim 3 is characterized in that, said indicating device comprises buzzer and light-emitting diode, and wherein, said buzzer connects said light-emitting diode.
5. a set top box testing system is characterized in that, said system comprises the checkout gear of STB mainboard, and said device comprises motherboard power supply end, short-circuit test circuit and power panel voltage end, also comprises a relay,
Wherein, Said relay comprises common port; Normally-closed contact and normally opened contact; The common port of said relay connects said motherboard power supply end, and the normally-closed contact of said relay connects the input of said short-circuit test circuit, and the normally opened contact of said relay connects the input of said power panel voltage end.
6. set top box testing as claimed in claim 5 system is characterized in that the port of said motherboard power supply end is provided with a probe, and the common port of said relay connects the probe of said motherboard power supply end.
7. set top box testing as claimed in claim 5 system is characterized in that said device also comprises indicating device, and said indicating device connects said short-circuit test circuit.
8. set top box testing as claimed in claim 7 system is characterized in that said indicating device comprises buzzer and light-emitting diode, and wherein, said buzzer connects said light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201977044U CN202153775U (en) | 2011-06-13 | 2011-06-13 | Set top box main board detection device and set top box test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201977044U CN202153775U (en) | 2011-06-13 | 2011-06-13 | Set top box main board detection device and set top box test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153775U true CN202153775U (en) | 2012-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201977044U Expired - Fee Related CN202153775U (en) | 2011-06-13 | 2011-06-13 | Set top box main board detection device and set top box test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202153775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541441A (en) * | 2018-12-30 | 2019-03-29 | 广东盈科电子有限公司 | A kind of micro-wave oven mainboard FCT Auto-Test System |
| CN109756729A (en) * | 2017-11-01 | 2019-05-14 | 厦门雅迅网络股份有限公司 | A kind of vehicle-mounted CVBS video signal output interface state detection circuit and method |
-
2011
- 2011-06-13 CN CN2011201977044U patent/CN202153775U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109756729A (en) * | 2017-11-01 | 2019-05-14 | 厦门雅迅网络股份有限公司 | A kind of vehicle-mounted CVBS video signal output interface state detection circuit and method |
| CN109756729B (en) * | 2017-11-01 | 2020-07-31 | 厦门雅迅网络股份有限公司 | Vehicle-mounted CVBS video signal output interface state detection circuit and method |
| CN109541441A (en) * | 2018-12-30 | 2019-03-29 | 广东盈科电子有限公司 | A kind of micro-wave oven mainboard FCT Auto-Test System |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN SKYWORTH DIGITAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SKY-WORTH DIGITAL TECHNOLOGY CO., LTD.;SHENZHEN CITY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road SKYWORTH building A block 14 layer Patentee after: Shenzhen Skyworth Digital Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road SKYWORTH building A block 14 layer Patentee before: Shenzhen Skyworth Digital Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20170613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |