CN205490961U - TV set integrated circuit board HDMI interface detection device - Google Patents
TV set integrated circuit board HDMI interface detection device Download PDFInfo
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- CN205490961U CN205490961U CN201620053771.1U CN201620053771U CN205490961U CN 205490961 U CN205490961 U CN 205490961U CN 201620053771 U CN201620053771 U CN 201620053771U CN 205490961 U CN205490961 U CN 205490961U
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Abstract
The utility model relates to an audio frequency and video detect production technical field, disclose a TV set integrated circuit board HDMI interface detection device, including main control unit, isolator chip, video player, HDMI input interface and HDMI output interface, the output of video player is connected to signal output is looked extremely with the sound of video player to the HDMI input interface the HDMI input interface, HDMI inputs the input foot of interface connection to the isolator chip, the main control unit passes through IIC bus connection to HDMI output interface, the HDMI output interface is connected with the HDMI socket of the integrated circuit board that awaits measuring. The utility model discloses use ordinary DVD player, just can carry out the HDMI interface testing of TV set integrated circuit board, the testing process is simple, and detection efficiency is high.
Description
Technical field
This utility model relates to audio frequency and video detection production technical field, particularly a kind of television set board HDMI detection
Device.
Background technology
HDMI, as a kind of port for transmitting high-definition digital audio frequency and video channel, has been widely used for TV
In machine, display terminal audio and video equipment, and HDMI port not only has digital audio-video signal, also includes that EDID and HDCP believes
Number, the two signal user deposits end product information and audio-video signal adds confidential information, and traditional detection method is to answer apparatus
Product is detected by the information source having standard HDMI, and this type of Related product cost is higher, needs often plug during detection
HDMI wire on socket, easily causes damage of product, and it is longer to detect these two consuming times, and production efficiency is relatively low.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, it is provided that a kind of television set board HDMI detection
Device, improves the detection efficiency of television set board.
EDID information is all stored in advance in special chip, and the probability that this partial information itself goes wrong is relatively low,
Problem tends to occur in physical connection, if can detect TV plate with a main control unit by HDMI socket iic bus
Whether this special chip of card can communicate, then just can substitute the complex process that this part signal realizes communicating with information source.
This utility model adopts the technical scheme that:
A kind of television set board HDMI detection device, is characterized in that, including main control unit, disconnecting switch chip, regard
Frequently player, HDMI input interface and HDMI output interface, the outfan of described video machines is connected to described HDMI input
Interface, regards signal output extremely described HDMI input interface by the sound of video machines, and described HDMI input interface is connected to isolation
The input pin of switch chip, described main control unit is connected to HDMI output interface by iic bus, described HDMI output interface with
The HDMI socket of awaiting board card is connected, and described video machines output audio-video signal is supplied to the input of described disconnecting switch
Foot, audio-video signal is sent to television set plate to be detected by HDMI output interface by described disconnecting switch in the on-state
Card, main control unit, by the data in the special chip in described iic bus reading awaiting board card, and is stored in main control unit
EDID data compare, and it is qualified that both data consistents are then checked.
Further, the I/O interface of described main control unit connects detection status indicator lamp, and described detection status indicator lamp shows
Described main control unit treats the testing result of examination television set board.
Further, described detection device also includes that power subsystem, described power subsystem are connected to described main control unit, isolation
Switch, HDMI input interface and HDMI output interface.
Further, described video machines is DVD player.
The beneficial effects of the utility model are:
(1) use common DVD machine, just can carry out the HDMI test of television set board；
(2) detection process is simple, and detection efficiency is high.
Accompanying drawing explanation
Accompanying drawing 1 is modular construction schematic diagram of the present utility model.
Labelling in accompanying drawing is respectively as follows:
1. main control unit；2. disconnecting switch chip；
3. video machines；4. HDMI input interface；
5. HDMI output interface；6. awaiting board card；
7. power subsystem；8. detection status indicator lamp.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of this utility model television set board HDMI detection device is made in detail
Describe in detail bright.
Seeing accompanying drawing 1, television set board HDMI detection device includes main control unit 1, disconnecting switch chip 2, video
Player 3, HDMI input interface 4 and HDMI output interface 5, video machines selection Common DVD players, video machines
Outfan is connected to HDMI input interface, the sound of video machines regards signal output and connects to HDMI input interface, HDMI input
Mouth is connected to the input pin of disconnecting switch chip, and main control unit is connected to HDMI output interface by iic bus, and HDMI output connects
Mouth is connected with the HDMI socket of awaiting board card 6.Said units and interface equipment by power subsystem 7 provide power supply or individually oneself
Power supply.The I/O interface of main control unit connects detection status indicator lamp 8, and detection status indicator lamp display main control unit treats examination TV
The testing result of machine board.
Sound is regarded in the on-state by video machines output audio-video signal to the input pin of disconnecting switch, disconnecting switch
Frequently signal is sent to television set board to be detected by HDMI output interface, and main control unit reads awaiting board card by iic bus
On special chip in data, compare with the EDID data being stored in main control unit, it is qualified that both data consistents are then checked.
Concrete structure, wiring and detection process are as follows, have a HDMI input interface and a HDMI output to connect in device
Mouthful, the HDMI input interface in device is connected to the HDMI output interface of common DVD by HDMI wire, the HDMI output in device
Interface is connected on the HDMI input interface of television board to be measured by HDMI wire.The HPD foot of the HDMI input interface in device
Often it is connected to high level, to ensure that DVD has audio-video signal to export all the time, the audiovisual digital signal pin electricity of HDMI input interface
Property is connected on disconnecting switch chip input pin, and remaining pin is unsettled.The audiovisual digital of the HDMI output interface in device
Signal pin is electrically connected on disconnecting switch chip output pin, and the IIC pin of the HDMI output interface in device electrically connects
It is connected on the IIC pin of main control unit so that main control unit directly can communicate with the special chip of board under test.The detection of device
Result display lamp is electrically connected at main control unit I/O mouth.For showing test result.HDMI input interface in device is used
HDMI wire is connected on the DVD that a Daepori is logical, owing to the HPD pin of this socket is connected to high level all the time, so having DVD all the time
The audio-video signal of player is defeated by the input pin of disconnecting switch chip by these oral instructions, and disconnecting switch in the on-state will
All the time having audio-video signal by output HDMI to beta version, selecting signal is common non-encrypted information source, and HDMI output connects
Mouth can have image and acoustical signal output all the time.
Owing to the iic bus of HDMI output port is directly connected in main control unit, main control unit just can be directly by being somebody's turn to do
Port goes the data in the special chip on read test board, compares, the most then with the EDID data being stored in main control unit
It is qualified to check, status indicator lamp Chang Liang, inconsistent then disqualified upon inspection, and status indicator lamp flashes, by main control unit with special
The communication of chip, it is also possible to detection HDCP physical link have fault-free.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (4)
1. a television set board HDMI detection device, it is characterised in that: include main control unit, disconnecting switch chip, regard
Frequently player, HDMI input interface and HDMI output interface, the outfan of described video machines is connected to described HDMI input
Interface, regards signal output extremely described HDMI input interface by the sound of video machines, and described HDMI input interface is connected to isolation
The input pin of switch chip, described main control unit is connected to HDMI output interface by iic bus, described HDMI output interface with
The HDMI socket of awaiting board card is connected, and described video machines output audio-video signal gives the input pin of described disconnecting switch, institute
State disconnecting switch and in the on-state audio-video signal is sent to television set board to be detected, master control by HDMI output interface
Unit reads the data in the special chip in awaiting board card by described iic bus, with the EDID number being stored in main control unit
According to comparing, it is qualified that both data consistents are then checked.
Television set board HDMI the most according to claim 1 detection device, it is characterised in that: described main control unit
I/O interface connects detection status indicator lamp, and described detection status indicator lamp shows that described main control unit treats examination television set board
Testing result.
Television set board HDMI the most according to claim 1 detection device, it is characterised in that: described detection device is also
Including power subsystem, described power subsystem is connected to described main control unit, disconnecting switch, HDMI input interface and HDMI output connect
Mouthful.
Television set board HDMI the most according to any one of claim 1 to 3 detection device, it is characterised in that: institute
Stating video machines is DVD player.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053771.1U CN205490961U (en) | 2016-01-20 | 2016-01-20 | TV set integrated circuit board HDMI interface detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053771.1U CN205490961U (en) | 2016-01-20 | 2016-01-20 | TV set integrated circuit board HDMI interface detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205490961U true CN205490961U (en) | 2016-08-17 |
Family
ID=56637928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620053771.1U Active CN205490961U (en) | 2016-01-20 | 2016-01-20 | TV set integrated circuit board HDMI interface detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205490961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290649A (en) * | 2017-07-13 | 2017-10-24 | 广州视源电子科技股份有限公司 | Television board card testing device |
| CN108810529A (en) * | 2018-06-27 | 2018-11-13 | 深圳创维数字技术有限公司 | A kind of equipment testing result determination method, device and storage medium |
-
2016
- 2016-01-20 CN CN201620053771.1U patent/CN205490961U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290649A (en) * | 2017-07-13 | 2017-10-24 | 广州视源电子科技股份有限公司 | Television board card testing device |
| CN107290649B (en) * | 2017-07-13 | 2020-04-21 | 广州视源电子科技股份有限公司 | Television board card testing device |
| CN108810529A (en) * | 2018-06-27 | 2018-11-13 | 深圳创维数字技术有限公司 | A kind of equipment testing result determination method, device and storage medium |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |