CN201477184U - Detection device for display circuit of set top box - Google Patents
Detection device for display circuit of set top box Download PDFInfo
- Publication number
- CN201477184U CN201477184U CN2009201909410U CN200920190941U CN201477184U CN 201477184 U CN201477184 U CN 201477184U CN 2009201909410 U CN2009201909410 U CN 2009201909410U CN 200920190941 U CN200920190941 U CN 200920190941U CN 201477184 U CN201477184 U CN 201477184U
- Authority
- CN
- China
- Prior art keywords
- faller gill
- display circuit
- top box
- circuit board
- 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 - Lifetime
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Abstract
The utility model relates to a circuit detection device, in particular to a detection device for a display circuit of a set top box. The detection device comprises a singlechip, a control circuit and a detection indicating circuit, and is characterized in that a plurality of hackle sockets are arranged at an input terminal of the singlechip, the control circuit is arranged at a control terminal of the singlechip, and the detection indicating circuit is arranged at an output terminal of the singlechip. The utility model has the advantages of simple structure, convenient operation, easy control, low detection cost, strong pertinence and extremely high cost performance, and can greatly improve the detection efficiency.
Description
Technical field
The utility model relates to a kind of circuit board testing device, particularly a kind of set-top box display circuit board checking device.
Background technology
At present, the display circuit board test all is that display circuit board to be detected and other intact parts are formed complete set-top box, and set-top box is connected with TV, regulates the button on the display circuit board, by the observation television image, sound etc. judge whether display circuit board is complete.Directly utilize TV to test, not only testing cost height, troublesome poeration, influence test speed, and be vulnerable to the influence of factors such as signal, program function, can not detect all yards of charactron section, can not detect some joint welding situation is arranged on the circuit board, weak effect, particularly different display circuit boards need change different mainboards, and is very inconvenient.So numerous and diverse, the troublesome poeration of existing set-top box display circuit board checking device detects weak effect, efficient is low, detects the cost height.
Summary of the invention
At above problem, the purpose of this utility model provide a kind of simple in structure, be convenient to operate, be easy to grasp and can improve detection efficiency greatly, detect the low set-top box display circuit board checking device of cost.
A kind of set-top box display circuit board checking device, comprise single-chip microcomputer, control circuit and detection indicating circuit, it is characterized in that: establish in input of single chip several faller gill sockets are housed, establish at the control port of single-chip microcomputer control circuit is housed, establish in single machine output end the detection indicating circuit is housed.
The utility model utilizes chip microcontroller.So, not only simple in structure, be convenient to operation, be easy to grasp, can improve greatly detection efficiency, to detect cost low, and with strong points, test is accurately, is the high set-top box display circuit board checking device of a kind of cost performance.
Description of drawings
Accompanying drawing is a kind of structural representation of the present utility model.
Among the figure: single-chip microcomputer 80C 51, capacitor C 1 and C2, crystal oscillator Y1, faller gill socket J1～J5 (wherein: J1 is that 12 pin faller gill sockets, J2 are that 11 pin faller gill sockets, the J3 of spacing 2.54mm is that 11 pin faller gill sockets, the J4 of spacing 2mm is that 10 pin faller gill sockets, J5 are 6 pin faller gill sockets), supply socket J6, power supply indication D1, status indicator lamp D2～D5, switch key K1～K4, reset key RESET1, current-limiting resistance R1～R7.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
It among the figure a kind of set-top box display circuit board checking device of the present utility model, mainly comprise single-chip microcomputer, control circuit and detection indicating circuit, main points are: establish in input of single chip several faller gill sockets are housed, establish at the control port of single-chip microcomputer control circuit is housed, establish in single machine output end the detection indicating circuit is housed.Single-chip microcomputer among the figure is that AT89C51 single-chip microcomputer, control circuit are ON-OFF control circuit, and detecting indicating circuit is that light emitting diode detects indicating circuit.Establish the 11 faller gill lines that 6 faller gill lines, 10 faller gill lines, 2mm spacing are housed, 11 faller gill lines and five faller gill sockets of 12 faller gill lines of 2.54mm spacing in the AT89C51 input of single chip.Because of the single-chip microcomputer of the AT89C51 of Atmel company be a kind of low-power consumption, high performance contain the 4KB quickflashing able to programme/8 CMOS microcontrollers of erasable read only storer (FPEROM-Flash Programmable andEraseable Read Only Memory), use high density, non-volatile memory technology to make, have 32 programmable Is/O line.
Among the figure, J1～J5 is the single socket that is connected with display circuit board.The P00I/O mouth of 80C51 single-chip microcomputer, P01I/O mouth respectively with the KEY2 of 12 faller gill line J1, STATUS links to each other, and respectively the button and the lock pilot lamp of 12 pin display circuit boards is controlled; P02～P05I/O mouth links to each other with COM0, COM1, COM2, the COM3 signal pin of 12 faller gill line J1,11 faller gill line J2 and 11 faller gill line J3, four signal wires control respectively display circuit board group of four figures pipe go out and bright; P02～P04I/O links to each other with COM0, COM1, the COM2 signal pin of 10 faller gill line J4, control 10 pin display circuit boards three charactrons go out and bright; The P06I/O mouth links to each other with the KEYDET of 12 faller gill line J1,11 faller gill line J2,11 faller gill line J3 and 10 faller gill line J4, is used for detecting the push button signalling of display circuit board; The P07I/O mouth links to each other with the LOCK signal of 12 faller gill line J1,11 faller gill line J2,11 faller gill line J 3 and 10 faller gill line J4, the lock lamp of control display circuit board.
P10～P13I/O mouth links to each other with the negative pole of light emitting diode D2～D5 respectively, be used to control the test board pilot lamp, different light emitting diodes is represented different detected states, wherein D2 is used for illustrating that software function is the display circuit board that detects on J1 and the J2, D3 is that to be used for the software for display function be the display circuit board that detects on the J3, D4 is that to be used for the software for display function be the display circuit board that detects on the J4, and D5 is that to be used for the software for display function be the display circuit board that detects on the J5.When system detects, adopt software coding can the charactron on the display circuit board be shown successively, thereby can detect the situation that different charactrons have joint welding, also can demonstrate all yards section of each charactron, thereby detect whether bad charactron is arranged.
In sum, the utility model mainly is the some faller gill sockets that utilize on the some I/O mouths that are made as input port on the single-chip microcomputer, grafting set-top box display circuit board; Utilize the control circuit on the I/O mouth that is made as control port on the single-chip microcomputer, the faller gill socket of institute's grafting set-top box display circuit board is connected in conversion; Utilize the detection indicating circuit on the I/O mouth that is made as output port on the single-chip microcomputer, detect institute's grafting set-top box display circuit board.Obviously, also can adopt the single-chip microcomputer of other model, and the respective needle plug socket of respective numbers can be set according to the single-chip microcomputer that is adopted.
Claims (3)
1. set-top box display circuit board checking device, comprise single-chip microcomputer, control circuit and detection indicating circuit, it is characterized in that: establish in input of single chip several faller gill sockets are housed, establish at the control port of single-chip microcomputer control circuit is housed, establish in single machine output end the detection indicating circuit is housed.
2. set-top box display circuit board checking device according to claim 1 is characterized in that: single-chip microcomputer is that AT89C51 single-chip microcomputer, control circuit are ON-OFF control circuit, and detecting indicating circuit is that light emitting diode detects indicating circuit.
3. set-top box display circuit board checking device according to claim 2 is characterized in that: establish the 11 faller gill lines that 6 faller gill lines, 10 faller gill lines, 2mm spacing are housed, 11 faller gill lines and five faller gill sockets of 12 faller gill lines of 2.54mm spacing in the AT89C51 input of single chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201909410U CN201477184U (en) | 2009-08-03 | 2009-08-03 | Detection device for display circuit of set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201909410U CN201477184U (en) | 2009-08-03 | 2009-08-03 | Detection device for display circuit of set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477184U true CN201477184U (en) | 2010-05-19 |
Family
ID=42413436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201909410U Expired - Lifetime CN201477184U (en) | 2009-08-03 | 2009-08-03 | Detection device for display circuit of set top box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201477184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957288A (en) * | 2018-06-11 | 2018-12-07 | 南京尤尼泰信息科技有限公司 | A kind of test substrate suitable for plurality of specifications crystal oscillator |
-
2009
- 2009-08-03 CN CN2009201909410U patent/CN201477184U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957288A (en) * | 2018-06-11 | 2018-12-07 | 南京尤尼泰信息科技有限公司 | A kind of test substrate suitable for plurality of specifications crystal oscillator |
| CN108957288B (en) * | 2018-06-11 | 2023-10-13 | 南京尤尼泰信息科技有限公司 | Test substrate suitable for multiple specification crystal oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |