CN103813162B - Television mainboard self-detection method and system - Google Patents
Television mainboard self-detection method and system Download PDFInfo
- Publication number
- CN103813162B CN103813162B CN201310548505.7A CN201310548505A CN103813162B CN 103813162 B CN103813162 B CN 103813162B CN 201310548505 A CN201310548505 A CN 201310548505A CN 103813162 B CN103813162 B CN 103813162B
- Authority
- CN
- China
- Prior art keywords
- interface
- signal circuit
- mainboard
- autonomous test
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses a television mainboard self-detection system. The television mainboard self-detection system comprises an interface original signal circuit, a self-detection signal circuit, a main control unit and a mainboard external input source interface; a first end of the interface original signal circuit is connected with a pin of the mainboard external input source interface; a second end of the interface original signal circuit is connected with a signal detection input end of the main control unit; a local loopback path is formed by the self-detection signal circuit, the interface original signal circuit and the main control unit when no signal line is accessed into the mainboard external input source interface. According to the television mainboard self-detection method and system, an interface detection signal is sent from a self-master-chip of a television mainboard and self-received, contrast is performed to judge whether the signal transmission is abnormal or not and whether the interface junctions are normal or not, and accordingly the detection of the television mainboard is achieved, purchase and access of external devices are reduced, the maintenance cost and the production cost are reduced, and meanwhile misoperation, poor insertion connection and the like caused by complicated operation are avoided.
Description
Technical field
The present invention relates to TV motherboard technical field of measurement and test, particularly relate to a kind of TV motherboard self-sensing method, system.
Background technology
Along with reaching its maturity of TV tech, and the competition of the same industry is day by day fierce, and enhancing productivity is reduce production cost, the important channel of improving the quality of products.In the production process of TV, usually need to detect the quality of TV, to ensure qualified product introduction market.In the prior art, the detection of television-quality is normally detected complete machine, and need to adopt instrument to detect, this just makes the process of detection quite loaded down with trivial details, and the many quality problems due to TV are usually on mainboard, detection has during problem to be needed to change mainboard, thus, be necessary to develop a set of quickening examination board speed, improve the system of examination board accuracy, make it defective item just can be avoided to flow into next procedure at first working procedure, accomplish that prevention and corntrol combines.
The patent No. is " 201120344697.6 ", the Chinese utility model patent that denomination of invention is " rapid detection system of TV SKD " discloses a kind of TV motherboard rapid detection system, comprise a signal source module, one dio Output Modules, one Video Output Modules and a detection control module, utilize signal source module to produce standard signal, dio Output Modules is utilized to play the audio frequency that mainboard to be measured exports, Video Output Modules is utilized to show the video that mainboard to be measured exports, detection control module is utilized to control testing process, mainboard detection speed can be improved, effectively to check on substandard product, improve the production capacity of producing line.
But the operation of the rapid detection system of above-mentioned TV SKD needs external equipment as signal input sources and signal apparatus, can increase and safeguard input and production cost; Patch external equipment in addition and can there is the defect patching bad and complex operation.
Summary of the invention
The object of this invention is to provide a kind of TV motherboard self-sensing method, system, to solve the above-mentioned defect existed in prior art.
For realizing object of the present invention, the invention provides a kind of TV motherboard self-check system, comprising:
The original signal circuit of interface, Autonomous test signal circuit, main control unit, mainboard external input sources interface;
Described interface original signal circuit first end is connected with described mainboard external input sources interface pin, and the second end is connected with the detection signal input of described main control unit;
During described mainboard external input sources interface no signal line access, the pin of described Autonomous test signal circuit one end is connected with the pin of the first end of the original signal circuit of described interface, when described mainboard external input sources interface has holding wire to access, the pin of the pin of described Autonomous test signal circuit one end and the first end of the original signal circuit of described interface disconnects, and the other end of described Autonomous test signal circuit is connected with the detection signal output of described main control unit;
During described mainboard external input sources interface no signal line access, described Autonomous test signal circuit, the original signal circuit of described interface, described main control unit form local loopback (loopback) path.
Preferably, described mainboard external input sources interface is component interface, and described component interface comprises video interface, and described Autonomous test signal circuit comprises Autonomous test video circuit, and described main control unit is mainboard master chip, when described video interface accesses without video component holding wire, the pin of described interface original signal circuit first end is connected with described video interface pin, second end is connected with described mainboard master chip detection signal input pin, the pin of described Autonomous test video circuit one end is connected with the pin of the original signal circuit first end of described interface, the other end is connected with described mainboard master chip detection signal output pin, described Autonomous test video circuit, the original signal circuit of described interface, described mainboard master chip forms local loopback (loopback) path.
Preferably, also comprise earphone internal interface, described mainboard external input sources interface is audio interface, and described main control unit is mainboard master chip, and described Autonomous test signal circuit comprises Autonomous test audio signal circuit, during described audio interface absence of audio component signal line access, the pin of described interface original signal circuit first end is connected with described audio interface pin, the pin of the second end is connected with the detection signal input pin of described mainboard master chip, described Autonomous test audio signal circuit one end is connected with the pin of the original signal circuit first end of described interface, the other end is connected with described earphone internal interface pin, described earphone internal interface pin is connected with described mainboard master chip audio signal output pin, the original signal circuit of described interface, described mainboard master chip, described Autonomous test audio signal circuit, described earphone internal interface, form local loopback (loopback) path.
Correspondingly, a kind of TV motherboard self-sensing method, the interface on mainboard arranges Autonomous test signal circuit, and described Autonomous test signal circuit, the original signal circuit of interface, main control unit, mainboard external input sources interface form local loopback (loopback) path; Comprise following detecting step:
1st step, receives the instruction of interface Autonomous test, judges whether mainboard external input sources interface has holding wire to access, and as nothing, then enters the 2nd step, if any, then stop detecting;
2nd step, main control unit is to described Autonomous test signal circuit transmission interface detection signal, and described interface detection signal by described Autonomous test signal circuit, mainboard external input sources interface, the original signal circuit of described interface, returns described main control unit successively;
3rd step, received interface detection signal and preset standard range of signal compare by described main control unit, if exceed preset standard range of signal, then judge that described interface connects abnormal, if in described preset standard range of signal, then judge that described interface normally works.
Preferably, described mainboard external input sources interface is component interface, described component interface comprises video interface, described Autonomous test signal circuit comprises Autonomous test video circuit, described main control unit is mainboard master chip, described Autonomous test video circuit, the original signal circuit of interface, mainboard master chip, video interface, form local loopback (loopback) path; Described 2nd step specifically comprises, mainboard master chip sends described interface detection signal to described Autonomous test video circuit, described interface detection signal by described Autonomous test video circuit, video interface, the original signal circuit of interface, returns mainboard master chip successively.
Preferably, also comprising described mainboard external input sources interface is component interface, described component interface also comprises audio interface, described main control unit is mainboard master chip, described Autonomous test signal circuit comprises Autonomous test audio signal circuit, described Autonomous test audio signal circuit, the original signal circuit of interface, earphone internal interface, mainboard master chip, video interface, form local loopback (loopback) path; Described 2nd step specifically comprises, mainboard master chip sends described interface detection signal to described Autonomous test audio signal circuit, described interface detection signal by described earphone internal interface, Autonomous test audio signal circuit, audio interface, the original signal circuit of interface, returns mainboard master chip successively.
Beneficial effect of the present invention is, the present invention is by TV motherboard master chip self transmission interface detection signal, then received by itself, contrast judges whether Signal transmissions exists exception, and then judge that whether interface function is normal, both complete the detection of TV motherboard, reduce again purchase and the access of external equipment, reduce maintenance cost and production cost, avoid the misoperation that causes due to troublesome operation simultaneously and patch the generation of the problem such as bad.
Accompanying drawing explanation
Fig. 1 is method flow diagram provided by the invention;
Fig. 2 is system construction drawing provided by the invention;
The component interface loopback access structure schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The mainboard master chip that Fig. 4 provides for the embodiment of the present invention and video interface self-detection circuit connection diagram;
The mainboard master chip that Fig. 5 provides for the embodiment of the present invention and audio interface self-detection circuit connection diagram a;
The mainboard master chip that Fig. 6 provides for the embodiment of the present invention and audio interface self-detection circuit connection diagram b;
The video interface self-sensing method flow chart that Fig. 7 provides for the embodiment of the present invention;
The audio interface self-sensing method flow chart that Fig. 8 provides for the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be understood to specific embodiment described herein only in order to explain the present invention, be not limited to protection scope of the present invention.
As shown in Figure 1, the invention provides a kind of TV motherboard self-sensing method, interface on mainboard arranges Autonomous test signal circuit, and described Autonomous test signal circuit, the original signal circuit of interface, main control unit, mainboard external input sources interface form local loopback (loopback) path; Comprise following detecting step:
Step S101, receives the instruction of interface Autonomous test, judges whether mainboard external input sources interface has holding wire
Access, as nothing, then enters S102, if any, then stop detecting;
Step S102, main control unit is to described Autonomous test signal circuit transmission interface detection signal, and described interface detection signal by described Autonomous test signal circuit, mainboard external input sources interface, the original signal circuit of described interface, returns described main control unit successively;
Step S103, received interface detection signal and preset standard range of signal compare by described main control unit, if exceed preset standard range of signal, then judge that described interface connects abnormal, if in described preset standard range of signal, then judge that described interface normally works.Mainboard master chip, after receiving the Autonomous test signal returned, can carry out contrast with the Autonomous test signal sent and judge, then feed back Autonomous test result according to preset rules.
As shown in Figure 2, with above-mentioned TV motherboard self-sensing method correspondingly, the invention provides a kind of TV motherboard self-check system, comprising: Autonomous test signal circuit 201, mainboard external input sources interface 202, main control unit 203, the original signal circuit 204 of interface;
The first end of the original signal circuit of described interface 204 is connected with described mainboard external input sources interface 202 pin, and the second end is connected with the detection signal input of described main control unit 203;
During described mainboard external input sources interface 202 no signal line access, the pin of described Autonomous test signal circuit 201 one end is connected with the pin of the first end of the original signal circuit 204 of described interface, when described mainboard external input sources interface 202 has holding wire to access, the pin of the pin of described Autonomous test signal circuit 201 one end and the first end of the original signal circuit 204 of described interface disconnects, and the other end of described Autonomous test signal circuit 204 is connected with the detection signal output of described main control unit 203;
During described mainboard external input sources interface 202 no signal line access, described Autonomous test signal circuit 201, the original signal circuit of described interface 204, described main control unit 203 form local loopback (loopback) path.
In concrete scheme, described mainboard external input sources interface 202 is component interface, and described component interface comprises video interface, and described Autonomous test signal circuit 201 comprises Autonomous test video circuit, and described main control unit 203 is mainboard master chip, when described video interface accesses without video component holding wire, the pin of described interface original signal circuit first end is connected with described video interface pin, second end is connected with described mainboard master chip detection signal input pin, the pin of described Autonomous test video circuit one end is connected with the pin of the original signal circuit first end of described interface, the other end is connected with described mainboard master chip detection signal output pin, described Autonomous test video circuit, the original signal circuit of described interface, described mainboard master chip forms local loopback (loopback) path.
Preferably, also comprise earphone internal interface, described mainboard external input sources interface 202 is audio interface, and described main control unit 203 is mainboard master chip, and described Autonomous test signal circuit 201 comprises Autonomous test audio signal circuit, during described audio interface absence of audio component signal line access, the pin of described interface original signal circuit first end is connected with described audio interface pin, the pin of the second end is connected with the detection signal input pin of described mainboard master chip, described Autonomous test audio signal circuit one end is connected with the pin of the original signal circuit first end of described interface, the other end is connected with described earphone internal interface pin, described earphone internal interface pin is connected with described mainboard master chip audio signal output pin, the original signal circuit of described interface, described mainboard master chip, described Autonomous test audio signal circuit, described earphone internal interface, form local loopback (loopback) path.
The present invention is described in detail for embodiment to arrange Autonomous test signal circuit with TV motherboard component interface below.
As shown in Figure 3, described component interface comprises video interface and audio interface, the Autonomous test signal circuit that described video interface place is arranged is Autonomous test video circuit, the Autonomous test signal circuit that described audio interface place is arranged is Autonomous test audio signal circuit, and described Autonomous test video circuit and described video interface, the original signal circuit of described video interface, mainboard master chip connect and compose loop successively; Described Autonomous test audio signal circuit and described audio interface, the original signal circuit of audio interface, media circuit, mainboard master chip connect and compose loop successively.
33,36,38 is Autonomous test video circuit, 31,32,34,35,37 is the original signal circuit of video interface, 311,313 is Autonomous test audio signal circuit, 39,312 is the original signal circuit of audio interface, 314 is digital signal circuit, 3000,3001,3002 is video interface, and 3003,3004 is audio interface.
As shown in Figure 4, be mainboard master chip and Autonomous test video circuit connection diagram.Choose mainboard master chip 3 I/O mouths as video Autonomous test signal output part,
When carrying out the work of video interface Autonomous test, Autonomous test vision signal is sent to Autonomous test video circuit 33,36,38 place by mainboard master chip, owing at this moment passing through video interface, (31,33), (34,36), the circuit of (37,38) communicates, so then Autonomous test vision signal can return mainboard master chip through 33,36,38 circuit by component interface.
As shown in Figure 5, Figure 6, the mainboard master chip provided for the embodiment of the present invention and audio interface self-detection circuit connection diagram;
Described media circuit refers to the headphones sound output circuit of the sound power amplifier chips 51 of mainboard.For Autonomous test audio signal circuit 311,313, directly can be connected with the headphones sound output circuit pin of the sound power amplifier chips 51 of mainboard, utilize original headphones sound output circuit to connect 311,313 and carry out detection signal output.
Similar to video component interface, in earphone interface 52, not (61,311) during plugged earphone line, (62,313) are connected, and normally can carry out audio interface Autonomous test.Disconnect after inserting, can not carry out Autonomous test, the earphone of insertion can normally work, and normal work herein refers to that earphone provides normal function.
During audio interface Autonomous test, Autonomous test audio signal is sent to sound power amplifier chips 51 by master chip, and sound power amplifier chips outputs to earphone interface 52 from headphones sound output channel after decoding.Due at this moment, (61,311) (62,313) are connection status, so Autonomous test audio signal can enter 311,313 paths by earphone interface, and now (39,311) (312,313) be also communicating state, so Autonomous test audio signal can pass through audio interface again, thus further by returning mainboard master chip, thus complete the Autonomous test of audio interface.
When the non-access interface holding wire of mainboard external input sources interface, described loopback path is closed, can carry out Autonomous test; When the outer access interface holding wire of mainboard external input sources interface, described loopback path disconnects, and the interface signal line of described outer access can carry out normal signal input service.Particularly, (32,33) (35,36) (38,37) (39,311) (312,313) in component interface are attached state, and such Loop Back path is closed, normally can carry out Autonomous test.When accessing external signal line, above-mentioned interface pin pin is released state, and at this moment Loop Back path disconnects, and can not carry out Autonomous test, but the signal of outside access can normally input service.Above-mentioned can carry out normal signal input service, refers to that component interface can carry out original function.
As shown in Figure 7, the video interface self-sensing method flow chart that the embodiment of the present invention provides comprises the steps:
Step S701, starts video interface self-checking function.
Remote controller key or other control appliances can be utilized in the embodiment of the present invention particularly to comprise the function menu of display display, select the button or the function items that represent video self-checking function, determine to perform video interface Autonomous test, jump to step S702.
Step S702, configuration relevant parameter, and by the parameter mainboard master chip of configuration, Autonomous test vision signal is sent to Autonomous test video circuit; Jump to step S703;
Step S703, is received from detection vision signal; Jump to step S704.
Autonomous test vision signal through mainboard master chip, Autonomous test video circuit, video interface, the original signal circuit of interface, returns mainboard master chip successively.
Step S704, judges whether video interface exists exception, if so, jumps to step S705; If not, step S706 is jumped to;
The method of above-mentioned judgement can be, received Autonomous test vision signal and preset standard range of signal are compared, if exceed preset standard range of signal, then judges that described interface connects abnormal, if in described preset standard range of signal, then judge that described interface normally works.
Step S705, video interface is normal, terminates this Autonomous test;
Step S706, video interface is abnormal, jumps to step S707;
Step S707, investigation main board failure, then re-start detection.
As shown in Figure 8, be audio interface self-sensing method flow chart that the embodiment of the present invention provides.
Step S801, starts audio interface self-checking function.
Remote controller key or other control appliances can be utilized in the embodiment of the present invention particularly to comprise the function menu of display display, select the button or the function items that represent video self-checking function, determine to perform audio interface Autonomous test, jump to step S802.
Step S802, configuration relevant parameter, and by the parameter mainboard master chip of configuration, Autonomous test audio signal is sent to Autonomous test audio signal circuit; Jump to step S803;
Step S803, is received from detection audio signal; Jump to step S804.
During audio interface Autonomous test, mainboard master chip does not leave the pin directly to output audio signal on Autonomous test audio signal circuit, in the present invention in embodiment, utilize sound power amplifier chips AMP NTP7412S, Autonomous test audio signal sound power amplifier chips is outputted to earphone interface from headphones sound output channel by mainboard master chip after decoding, then, Autonomous test audio signal can enter Autonomous test audio signal circuit by earphone interface, then, pass through audio interface, through the original signal circuit of interface, finally, described mainboard master chip is returned.
Step S804, judges whether video interface exists exception, if so, jumps to step S805; If not, step S806 is jumped to;
The method of above-mentioned judgement can be, received Autonomous test audio signal and preset standard range of signal are compared, if exceed preset standard range of signal, then judges that described interface connects abnormal, if in described preset standard range of signal, then judge that described interface normally works.
Step S805, audio interface is normal, terminates this Autonomous test;
Step S806, audio interface is abnormal, jumps to step S807;
Step S807, investigation main board failure, then re-start detection.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a TV motherboard self-check system, is characterized in that, comprising:
The original signal circuit of interface, Autonomous test signal circuit, main control unit, mainboard external input sources interface;
Described interface original signal circuit first end is connected with described mainboard external input sources interface pin, and the second end is connected with the detection signal input of described main control unit;
During described mainboard external input sources interface no signal line access, the pin of described Autonomous test signal circuit one end is connected with the pin of the first end of the original signal circuit of described interface, when described mainboard external input sources interface has holding wire to access, the pin of the pin of described Autonomous test signal circuit one end and the first end of the original signal circuit of described interface disconnects, and the other end of described Autonomous test signal circuit is connected with the detection signal output of described main control unit;
During described mainboard external input sources interface no signal line access, described Autonomous test signal circuit, the original signal circuit of described interface, described main control unit form local loopback (loopback) path;
Described main control unit is used for described Autonomous test signal circuit transmission interface detection signal, and described interface detection signal by described Autonomous test signal circuit, mainboard external input sources interface, the original signal circuit of described interface, returns described main control unit successively.
2. TV motherboard self-check system according to claim 1, it is characterized in that, described mainboard external input sources interface is component interface, and described component interface comprises video interface, described Autonomous test signal circuit comprises Autonomous test video circuit, and described main control unit is mainboard master chip, when described video interface accesses without video component holding wire, the pin of described interface original signal circuit first end is connected with described video interface pin, second is connected with described mainboard master chip detection signal input pin, the pin of described Autonomous test video circuit one end is connected with the pin of the original signal circuit first end of described interface, the other end is connected with described mainboard master chip detection signal output pin, described Autonomous test video circuit, the original signal circuit of described interface, described mainboard master chip forms local loopback (loopback) path.
3. TV motherboard self-check system according to claim 1 and 2, it is characterized in that, also comprise earphone internal interface, described mainboard external input sources interface is audio interface, described main control unit is mainboard master chip, and described Autonomous test signal circuit comprises Autonomous test audio signal circuit, during described audio interface absence of audio component signal line access, the pin of described interface original signal circuit first end is connected with described audio interface pin, the pin of the second end is connected with the detection signal input pin of described mainboard master chip, described Autonomous test audio signal circuit one end is connected with the pin of the original signal circuit first end of described interface, the other end is connected with described earphone internal interface pin, described earphone internal interface pin is connected with described mainboard master chip audio signal output pin, the original signal circuit of described interface, described mainboard master chip, described Autonomous test audio signal circuit, described earphone internal interface, form local loopback (loopback) path.
4. a TV motherboard self-sensing method, it is characterized in that, interface on mainboard arranges Autonomous test signal circuit, and described Autonomous test signal circuit, the original signal circuit of interface, main control unit, mainboard external input sources interface form local loopback (loopback) path; Comprise following detecting step:
1st step, receives the instruction of interface Autonomous test, judges whether mainboard external input sources interface has holding wire to access, and as nothing, then enters the 2nd step, if any, then stop detecting;
2nd step, main control unit is to described Autonomous test signal circuit transmission interface detection signal, and described interface detection signal by described Autonomous test signal circuit, mainboard external input sources interface, the original signal circuit of described interface, returns described main control unit successively;
3rd step, received interface detection signal and preset standard range of signal compare by described main control unit, if exceed preset standard range of signal, then judge that described interface connects abnormal, if in described preset standard range of signal, then judge that described interface normally works.
5. TV motherboard self-sensing method according to claim 4, it is characterized in that, described mainboard external input sources interface is component interface, described component interface comprises video interface, described Autonomous test signal circuit comprises Autonomous test video circuit, described main control unit is mainboard master chip, described Autonomous test video circuit, the original signal circuit of interface, mainboard master chip, video interface, forms local loopback (loopback) path; Described 2nd step specifically comprises, mainboard master chip sends described interface detection signal to described Autonomous test video circuit, described interface detection signal by described Autonomous test video circuit, video interface, the original signal circuit of interface, returns mainboard master chip successively.
6. the TV motherboard self-sensing method according to claim 4 or 5, it is characterized in that, also comprising described mainboard external input sources interface is component interface, described component interface also comprises audio interface, described main control unit is mainboard master chip, described Autonomous test signal circuit comprises Autonomous test audio signal circuit, described Autonomous test audio signal circuit, the original signal circuit of interface, earphone internal interface, mainboard master chip, video interface, form local loopback (loopback) path; Described 2nd step specifically comprises, mainboard master chip sends described interface detection signal to described Autonomous test audio signal circuit, described interface detection signal by described earphone internal interface, Autonomous test audio signal circuit, audio interface, the original signal circuit of interface, returns mainboard master chip successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548505.7A CN103813162B (en) | 2013-11-07 | 2013-11-07 | Television mainboard self-detection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310548505.7A CN103813162B (en) | 2013-11-07 | 2013-11-07 | Television mainboard self-detection method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103813162A CN103813162A (en) | 2014-05-21 |
| CN103813162B true CN103813162B (en) | 2015-07-08 |
Family
ID=50709295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310548505.7A Expired - Fee Related CN103813162B (en) | 2013-11-07 | 2013-11-07 | Television mainboard self-detection method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103813162B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893896B (en) * | 2016-03-31 | 2018-12-25 | 中国印钞造币总公司 | A kind of implementation method and device of fortune paper money bag scanning door frame self diagnosis |
| CN108521571B (en) * | 2018-04-11 | 2021-01-01 | 上海小蚁科技有限公司 | SDI chip automatic detection method and device, storage medium and terminal |
| CN111082830B (en) * | 2019-12-27 | 2021-08-27 | 上海艾为电子技术股份有限公司 | Data loopback detection circuit of digital audio interface and digital audio equipment |
| CN113031563A (en) * | 2021-03-05 | 2021-06-25 | 展讯通信（上海）有限公司 | Fault detection system and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976484A (en) * | 2006-12-13 | 2007-06-06 | 康佳集团股份有限公司 | Flat-plate television capable of self-detecting and detecting method thereof |
| CN101867840A (en) * | 2009-04-15 | 2010-10-20 | 沈阳同方多媒体科技有限公司 | Television and aging test method for television |
| US8659309B2 (en) * | 2010-01-26 | 2014-02-25 | Scott Lawrence Howe | Mixed signal integrated circuit, with built in self test and method |
| CN102421011A (en) * | 2011-09-14 | 2012-04-18 | 厦门华侨电子股份有限公司 | Fast detection system of television mainboard |
-
2013
- 2013-11-07 CN CN201310548505.7A patent/CN103813162B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103813162A (en) | 2014-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103813162B (en) | Television mainboard self-detection method and system | |
| TWI546545B (en) | Auxiliary test circuit and chip and circuit board using the same | |
| CN103325327A (en) | Display panel and detecting line and detecting method for display panel | |
| CN105467188B (en) | A kind of all-fiber current sensor using segmented light path fault diagnosis | |
| US20180164368A1 (en) | Testing Circuit Board With Self-Detection Function And Self-Detection Method Thereof | |
| CN107527425B (en) | A kind of sensor states report method, system, equipment and storage medium | |
| JP5015188B2 (en) | Electrical channel self-test semiconductor test system | |
| TW201220034A (en) | Method and apparatus of controlling an operational status of an electronic device | |
| CN106803792A (en) | Data transfer equipment, electric equipment and electric equipment fault diagnosis system | |
| CN102338839A (en) | Systems, methods, and apparatus for connection fault self-monitoring with DC bias current | |
| CN107181538A (en) | A kind of intermediate-freuqncy signal power-sensing circuit and detection method | |
| US20140362487A1 (en) | Measuring System having at least One field Device with at Least One Display Apparatus as well as Method for Operating Same | |
| US20130234742A1 (en) | Integrated circuit and printed circuit board having receiver testing function | |
| CN102759648B (en) | Method and system for testing power panel | |
| CN112235708A (en) | Testing system and method for earphone production | |
| CN104181458A (en) | Detection method and device for PCBA board | |
| CN104198921A (en) | Method for testing printed circuit boards | |
| CN109752684A (en) | A kind of optical-electric module negative testing method and fault diagnosis method of discrimination | |
| KR20070011801A (en) | Test system and test method thereof | |
| CN104363044B (en) | A kind of calibration of optical line protection equipment and test system | |
| US9360524B2 (en) | Testing system for serial interface | |
| CN203714184U (en) | Testing system of navigation device | |
| CN108692746B (en) | Sensing monitoring terminal, sensing monitoring system and sensing monitoring method | |
| US9081056B2 (en) | Method for detecting working state of I/O pins of electronic components using charges from human body | |
| CN103982453A (en) | Online detection method for fan control panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20191107 |