TWI403735B - Detection of the interface of the differential detection of the pin error detection circuit and its detection system - Google Patents
Detection of the interface of the differential detection of the pin error detection circuit and its detection system Download PDFInfo
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本發明係有關於一種檢測電路及其檢測系統，尤指一種檢測顯示介面之差動對腳位異常之檢測電路及其檢測系統。The invention relates to a detecting circuit and a detecting system thereof, in particular to a detecting circuit for detecting an abnormality of a display interface and a detecting system thereof.
目前市面上大多數的視訊產品，舉凡電視、螢幕或電腦，已配置有採用TMDS(Transition Minimized Differential Signalling)技術來達到視訊及音訊傳輸的高清晰度多媒體介面(High Definition Media Interface,HDMI)或數位視訊介面(Digital Visual Interface,DVI)。Most of the video products on the market, such as TV, screen or computer, have been equipped with TMDS (Transition Minimized Differential Signalling) technology to achieve high definition multimedia interface (HDMI) or digital video and audio transmission. Video Visual Interface (DVI).
由於TMDS技術係利用幾組差動訊號來進行傳輸，因此HDMI及DVI介面可較單一訊號傳輸的介面更具有抗干擾能力、有效抑制電磁干擾(EMI)及準確時序定位的優點。另外，HDMI或DVI介面在打件生產上縱使有一根差動訊號空焊或短路，因待測物解調IC判斷能力夠強，仍有可能可以正常輸出訊號。Since the TMDS technology utilizes several sets of differential signals for transmission, the HDMI and DVI interfaces are more resistant to interference, more effective in suppressing electromagnetic interference (EMI), and accurate timing positioning than a single signal transmission interface. In addition, the HDMI or DVI interface has a differential signal gap welding or short circuit in the production of the parts. Because the demodulation IC of the object to be tested has a strong judgment ability, it is still possible to output the signal normally.
然而，面臨HDMI介面廣泛被使用時，各大廠在生產上都發生難以檢測差動訊號空焊或短路的問題。常常都在後半段生產測試才發現問題，甚至出貨後遇到訊號品質較差的訊號源才發現，因此都須附上更高額的維修成本。如此一來，無論成本上或客戶觀感上，都會造成嚴重的損失。However, when the HDMI interface is widely used, it is difficult for major manufacturers to detect the problem of gap welding or short circuit of the differential signal in production. It is often found in the second half of the production test that the problem is discovered. Even after the shipment, the signal source with poor signal quality is found, so it is necessary to attach a higher maintenance cost. As a result, regardless of cost or customer perception, it will cause serious losses.
因此，如何開發一種檢測焊於電路板上顯示介面之差動對腳位異常之檢測電路及檢測系統，則成為了本技術領域所迫切面臨之課題。Therefore, how to develop a detection circuit and a detection system for detecting the abnormality of the display interface soldered on the circuit board is an urgent problem in the technical field.
有鑑於此，本發明之一範疇在於提供一種檢測焊於電路板上顯示介面之差動對腳位異常之檢測電路及檢測系統，以降低整體的生產成本，保持良好的訊號品質。In view of the above, one aspect of the present invention is to provide a detection circuit and a detection system for detecting an abnormality of a display interface soldered on a circuit board to reduce the overall production cost and maintain good signal quality.
根據一具體實施例，本發明之檢測焊於電路板上顯示介面之差動對腳位異常之檢測電路。檢測電路包含有：一第一異常警示模組，其係具有二第一發光二極體及二第一限流電阻。二第一發光二極體係共同電性連接於一第一共同接點後，再分別串接該二第一限流電阻並連接於一第一正極接點及一第一負極接點。According to a specific embodiment, the detection circuit for detecting the abnormality of the display interface on the circuit board is abnormal. The detecting circuit comprises: a first abnormal warning module, which has two first light emitting diodes and two first current limiting resistors. After the first light-emitting diodes are electrically connected to a first common contact, the two first current-limiting resistors are connected in series and connected to a first positive contact and a first negative contact.
另外，本發明之檢測電路包含有一第二異常警示模組，其係具有二第二發光二極體及二第二限流電阻，該二第二發光二極體係共同電性連接於一第二共同接點後，再分別串接該二第二限流電阻並連接於一第二正極接點及一第二負極接點。In addition, the detection circuit of the present invention includes a second abnormality warning module having two second light emitting diodes and two second current limiting resistors. The two second light emitting diode systems are electrically connected to a second After the common contact, the two second current limiting resistors are connected in series and connected to a second positive contact and a second negative contact.
此外，本發明之檢測電路包含有一第三異常警示模組，其係具有二第三發光二極體及二第三限流電阻，該二第三發光二極體係共同電性連接於一第三共同接點後，再分別串接該二第三限流電阻並連接於一第三正極接點及一第三負極接點。In addition, the detection circuit of the present invention includes a third abnormality warning module having two third light emitting diodes and two third current limiting resistors, wherein the two third light emitting diode systems are electrically connected to a third After the common contact, the two third current limiting resistors are connected in series and connected to a third positive contact and a third negative contact.
再者，本發明之檢測電路包含有一第四異常警示模組，其係具有二第四發光二極體及二第四限流電阻，該二第四發光二極體係共同電性連接於一第四共同接點後，再分別串接該二第四限流電阻並連接於一第四正極接點及一第四負極接點。Furthermore, the detection circuit of the present invention includes a fourth abnormality warning module having two fourth light emitting diodes and two fourth current limiting resistors. The two fourth light emitting diode systems are electrically connected to one another. After the four common contacts, the two fourth current limiting resistors are connected in series and connected to a fourth positive contact and a fourth negative contact.
相較於習知技術，本發明之檢測電路之整體結構簡易，並不複雜，可直接與HDMI或DVI介面結合，以達到降低整體的生產成本，保持良好的訊號品質的發明功效。Compared with the prior art, the overall structure of the detection circuit of the present invention is simple and not complicated, and can be directly combined with the HDMI or DVI interface to achieve the invention effect of reducing the overall production cost and maintaining good signal quality.
本發明之另一範疇在於提供一種檢測焊於電路板上顯示介面之差動對腳位異常之檢測系統，其係用以降低整體的生產成本，保持良好的訊號品質。Another aspect of the present invention is to provide a detection system for detecting an abnormality of a display interface soldered to a display panel on a circuit board, which is used to reduce overall production cost and maintain good signal quality.
根據一具體實施例，該檢測系統係包含有一顯示介面及一檢測電路。顯示介面係焊於電路板上，該顯示介面具有一組第一差動對接腳，該第一差動對接腳係具有一第一正極接腳、一第一負極接腳及一第一接地接腳。檢測電路係具有一第一異常警示模組，該第一異常警示模組係具有二第一發光二極體及二第一限流電阻，該二第一發光二極體係共同電性連接於一第一共同接點後，再分別串接該二第一限流電阻並連接於一第一正極接點及一第一負極接點，該第一正極接點係電性連接於該第一正極接腳，該第一負極接點係電性連接於該第一負極接腳，該第一共同接點係電性連接於該第一接地接腳。其中，當該第一正極接腳、該第一負極接腳及該第一接地接腳彼此短路或分別開路時，連接於該第一正極接點及該第一負極接點之該二第一發光二極體會同時或分別熄滅。According to a specific embodiment, the detection system includes a display interface and a detection circuit. The display interface is soldered to the circuit board, and the display interface has a set of first differential butt pins, the first differential butt pins having a first positive pin, a first negative pin and a first ground connection foot. The detection circuit has a first abnormality warning module. The first abnormality warning module has two first light-emitting diodes and two first current limiting resistors. The two first light-emitting diode systems are electrically connected to one another. After the first common contact, the two first current limiting resistors are connected in series and connected to a first positive contact and a first negative contact. The first positive contact is electrically connected to the first positive electrode. The first negative contact is electrically connected to the first negative contact, and the first common contact is electrically connected to the first ground. When the first positive pin, the first negative pin, and the first ground pin are short-circuited or open to each other, the first one is connected to the first positive contact and the first negative contact The light-emitting diodes are extinguished simultaneously or separately.
再者，該檢測系統之該顯示介面係具有一組第二差動對接腳，該第二差動對接腳係具有一第二正極接腳、一第二負極接腳及一第二接地接腳；該檢測電路係更具有一第二異常警示模組，其係具有二第二發光二極體及二第二限流電阻，該二第二發光二極體係共同電性連接於一第二共同接點後，再分別串接該二第二限流電阻並連接於一第二正極接點及一第二負極接點，該第二正極接點係電性連接於該第二正極接腳，該第二負極接點係電性連接於該第二負極接腳，該第二共同接點係電性連接於該第二接地接腳；其中，當該第二正極接腳、該第二負極接腳及該第二接地接腳彼此短路或分別開路時，連接於該第二正極接點及該第二負極接點之該二第二發光二極體會同時或分別熄滅。Furthermore, the display interface of the detection system has a second differential butt joint, and the second differential butt strap has a second positive pin, a second negative pin and a second ground pin. The detection circuit further has a second abnormality warning module, which has two second light-emitting diodes and two second current limiting resistors, and the two second light-emitting diode systems are electrically connected to a second common circuit. After the contact, the two second current limiting resistors are connected in series and connected to a second positive contact and a second negative contact. The second positive contact is electrically connected to the second positive pin. The second negative contact is electrically connected to the second negative pin, and the second common contact is electrically connected to the second ground pin; wherein, the second positive pin and the second negative When the pin and the second ground pin are short-circuited or open, respectively, the two second LEDs connected to the second positive contact and the second negative contact are extinguished simultaneously or separately.
另外，該檢測系統之該顯示介面係具有一組第三差動對接腳，該第三差動對接腳係具有一第三正極接腳、一第三負極接腳及一第三接地接腳；該檢測電路係更具有一第三異常警示模組，其係具有二第三發光二極體及二第三限流電阻，該二第三發光二極體係共同電性連接於一第三共同接點後，再分別串接該二第三限流電阻並連接於一第三正極接點及一第三負極接點，該第三正極接點係電性連接於該第三正極接腳，該第三負極接點係電性連接於該第三負極接腳，該第三共同接點係電性連接於該第三接地接腳；其中，當該第三正極接腳、該第三負極接腳及該第三接地接腳彼此短路或分別開路時，連接於該第三正極接點及該第三負極接點之該二第三發光二極體會同時或分別熄滅。In addition, the display interface of the detection system has a set of a third differential butt strap, the third differential butt strap has a third positive pin, a third negative pin and a third ground pin; The detection circuit further has a third abnormality warning module, which has two third light emitting diodes and two third current limiting resistors, and the two third light emitting diode systems are electrically connected to a third common connection. After the point, the second third current limiting resistor is connected in series and connected to a third positive contact and a third negative contact. The third positive contact is electrically connected to the third positive pin. The third negative contact is electrically connected to the third negative pin, and the third common contact is electrically connected to the third ground pin; wherein, when the third positive pin and the third negative terminal are connected When the leg and the third grounding pin are short-circuited or open to each other, the two third LEDs connected to the third positive contact and the third negative contact are extinguished simultaneously or separately.
此外，該檢測系統之該顯示介面係具有一組第四差動對接腳，該第四差動對接腳係具有一第四正極接腳、一第四負極接腳及一第四接地接腳；該檢測電路係更具有一第四異常警示模組，其係具有二第四發光二極體及二第四限流電阻，該二第四發光二極體係共同電性連接於一第四共同接點後，再分別串接該二第四限流電阻並連接於一第四正極接點及一第四負極接點，該第四正極接點係電性連接於該第四正極接腳，該第四負極接點係電性連接於該第四負極接腳，該第四共同接點係電性連接於該第四接地接腳；其中，當該第四正極接腳、該第四負極接腳及該第四接地接腳彼此短路或分別開路時，連接於該第四正極接點及該第四負極接點之該二第四發光二極體會同時或分別熄滅。In addition, the display interface of the detection system has a set of fourth differential butting legs, and the fourth differential butting leg has a fourth positive pin, a fourth negative pin and a fourth ground pin; The detection circuit further has a fourth abnormality warning module, which has two fourth light emitting diodes and two fourth current limiting resistors, and the two fourth light emitting diode systems are electrically connected to a fourth common connection. After the point, the two fourth current limiting resistors are connected in series and connected to a fourth positive contact and a fourth negative contact. The fourth positive contact is electrically connected to the fourth positive pin. The fourth negative contact is electrically connected to the fourth negative pin, and the fourth common contact is electrically connected to the fourth ground pin; wherein, when the fourth positive pin and the fourth negative terminal are connected When the foot and the fourth grounding pin are short-circuited or open to each other, the two fourth LEDs connected to the fourth positive contact and the fourth negative contact are extinguished simultaneously or separately.
於實際應用中，本發明檢測焊於電路板上顯示介面之差動對腳位異常之檢測系統之該顯示介面係為HDMI或DVI。In practical applications, the display interface of the detection system for detecting a differential on the display interface of the display interface on the circuit board is HDMI or DVI.
相較於習知技術，本發明之檢測焊於電路板上顯示介面之差動對腳位異常之檢測系統可搭配視頻訊號圖形產生器(video pattern generator)，雖然多一道程序，且在測試時間上相對多出一部分成本，但可達到降低整體的生產成本，保持良好的訊號品質的發明功效。Compared with the prior art, the detection system for detecting the abnormality of the display interface on the circuit board of the present invention can be matched with the video pattern generator, although more than one program and at the test time. There is a relatively large part of the cost, but it can achieve the effect of reducing the overall production cost and maintaining good signal quality.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.
請參閱圖一及圖二。圖一繪示根據本發明之一具體實施例的焊於電路板B上顯示介面之示意圖。圖二繪示根據本發明之一具體實施例之HDMI介面的SINK端簡易架構之示意圖。如圖一所示，本實施例之顯示介面A係以HDMI Type A來作說明，但接腳定義並不在此多作贅述。此外，本發明係檢測HDMI介面在生產上常遇到的問題，例如TMDS空焊或短路，透過圖二可以了解HDMI的SINK端簡易架構，其中差動訊號(正或負極接腳)上個別連接一終端電阻RT ，並拉載至內部偏壓AVcc，以利用此一特性來進行檢測。上述HDMI的SINK端簡易架構與習知並無差異，在此不再多作贅述。Please refer to Figure 1 and Figure 2. FIG. 1 is a schematic view showing a display interface soldered on a circuit board B according to an embodiment of the invention. 2 is a schematic diagram of a simple architecture of a SINK terminal of an HDMI interface according to an embodiment of the present invention. As shown in FIG. 1, the display interface A of this embodiment is described by HDMI Type A, but the pin definition is not described here. In addition, the present invention detects problems frequently encountered in the production of the HDMI interface, such as TMDS air soldering or short circuit, and can see the simple structure of the SINK terminal of the HDMI through the second diagram, wherein the differential signal (positive or negative pin) is individually connected. A termination resistor R T is pulled to the internal bias voltage AVcc to utilize this characteristic for detection. The SINK-side simple architecture of the above HDMI is not different from the conventional ones, and will not be repeated here.
請參閱圖三，圖三繪示根據本發明的一具體實施例之檢測系統1之電路圖。如圖三所示，本發明提供一種檢測焊於電路板B上顯示介面A之差動對腳位異常之檢測系統1，其係包含有焊於電路板B上之顯示介面A及檢測電路C。Referring to FIG. 3, FIG. 3 is a circuit diagram of the detection system 1 according to an embodiment of the present invention. As shown in FIG. 3, the present invention provides a detection system 1 for detecting a differential-to-foot abnormality of a display interface A on a circuit board B, which includes a display interface A and a detection circuit C soldered on the circuit board B. .
顯示介面A係焊於電路板B(未顯於圖)上，該顯示介面A具有一組第一差動對接腳、一組第二差動對接腳、一組第三差動對接腳、及一組第四差動對接腳。第一差動對接腳係具有一第一正極接腳A1、一第一負極接腳A2及一第一接地接腳A3；第二差動對接腳係具有一第二正極接腳A4、一第二負極接腳A5及一第二接地接腳A6；第三差動對接腳係具有一第三正極接腳A7、一第三負極接腳A8及一第三接地接腳A9；第四差動對接腳係具有一第四正極接腳A10、一第四負極接腳A11及一第四接地接腳A12。The display interface A is soldered to the circuit board B (not shown), and the display interface A has a set of first differential butt pins, a set of second differential butt pins, a set of third differential butt pins, and A set of fourth differential butt joints. The first differential butt strap has a first positive pin A1, a first negative pin A2 and a first ground pin A3; the second differential butt leg has a second positive pin A4, a first The second differential pin A5 and the second ground pin A6; the third differential butt leg has a third positive pin A7, a third negative pin A8 and a third ground pin A9; fourth differential The docking leg has a fourth positive pin A10, a fourth negative pin A11 and a fourth ground pin A12.
檢測電路C係具有一第一異常警示模組C1、一第二異常警示模組C2、一第三異常警示模組C3、一第四異常警示模組C4。此外，檢測電路C更具有一第一正極接點N1、一第一負極接點N2、一第一共同接點N3、一第二正極接點N4、一第二負極接點N5、一第二共同接點N6、一第三正極接點N7、一第三負極接點N8、一第三共同接點N9、一第四正極接點N10、一第四負極接點N11、及一第四共同接點N12分別與顯示介面A之接腳電性連接。The detecting circuit C has a first abnormal warning module C1, a second abnormal warning module C2, a third abnormal warning module C3, and a fourth abnormal warning module C4. In addition, the detecting circuit C further has a first positive contact N1, a first negative contact N2, a first common contact N3, a second positive contact N4, a second negative contact N5, and a second a common contact N6, a third positive contact N7, a third negative contact N8, a third common contact N9, a fourth positive contact N10, a fourth negative contact N11, and a fourth common The contacts N12 are electrically connected to the pins of the display interface A, respectively.
第一異常警示模組C1係具有二第一發光二極體CL11,CL12及二第一限流電阻CR11,CR12，該二第一發光二極體CL11,CL12係共同電性連接於第一共同接點N3後，再分別串接該二第一限流電阻CR11,CR12並連接於第一正極接點N1及第一負極接點N2。於本具體實施例中，該第一正極接點N1係電性連接於該第一正極接腳A1，該第一負極接點N2係電性連接於該第一負極接腳A2，該第一共同接點N3係電性連接於該第一接地接腳A3。The first abnormality warning module C1 has two first light-emitting diodes CL11, CL12 and two first current limiting resistors CR11, CR12, and the two first light-emitting diodes CL11 and CL12 are electrically connected to the first common After the contact point N3, the two first current limiting resistors CR11 and CR12 are connected in series and connected to the first positive electrode contact N1 and the first negative electrode contact N2. In the embodiment, the first positive contact N1 is electrically connected to the first positive pin A1, and the first negative contact N2 is electrically connected to the first negative pin A2. The common contact N3 is electrically connected to the first ground pin A3.
第二異常警示模組C2係具有二第二發光二極體CL21,CL22及二第二限流電阻CR21,CR22，該二第二發光二極體CL21,CL22係共同電性連接於第二共同接點N6後，再分別串接該二第二限流電阻CR21,CR22並連接於第二正極接點N4及第二負極接點N5。於本具體實施例中，該第二正極接點N4係電性連接於該第二正極接腳A4，該第二負極接點N5係電性連接於該第二負極接腳A5，該第二共同接點N6係電性連接於該第二接地接腳A6。The second abnormality warning module C2 has two second light-emitting diodes CL21, CL22 and two second current limiting resistors CR21 and CR22. The two second light-emitting diodes CL21 and CL22 are electrically connected to the second common After the contact N6, the two second current limiting resistors CR21 and CR22 are connected in series and connected to the second positive electrode contact N4 and the second negative electrode contact N5. In the embodiment, the second positive contact N4 is electrically connected to the second positive pin A4, and the second negative contact N5 is electrically connected to the second negative pin A5. The common contact N6 is electrically connected to the second ground pin A6.
第三異常警示模組C3係具有二第三發光二極體CL31,CL32及二第三限流電阻CR31,CR32，該二第三發光二極體CL31,CL32係共同電性連接於第三共同接點N9後，再分別串接該二第三限流電阻CR31,CR32並連接於第三正極接點N7及第三負極接點N8，該第三正極接點N7係電性連接於該第三正極接腳A7。於本具體實施例中，該第三負極接點N8係電性連接於該第三負極接腳A8，該第三共同接點N9係電性連接於該第三接地接腳A9。The third abnormality warning module C3 has two third light-emitting diodes CL31, CL32 and two third current limiting resistors CR31, CR32, and the two third light-emitting diodes CL31 and CL32 are electrically connected to the third common After the contact N9, the two third current limiting resistors CR31 and CR32 are connected in series to the third positive contact N7 and the third negative contact N8, and the third positive contact N7 is electrically connected to the first Three positive pins A7. In the embodiment, the third negative contact N8 is electrically connected to the third negative pin A8, and the third common contact N9 is electrically connected to the third ground pin A9.
第四異常警示模組C4係具有二第四發光二極體CL41,CL42及二第四限流電阻CR41,CR42，該二第四發光二極體CL41,CL42係共同電性連接於第四共同接點N12後，再分別串接該二第四限流電阻CR41,CR42並連接於第四正極接點N10及第四負極接點N11。於本具體實施例中，該第四正極接點N10係電性連接於該第四正極接腳A10，該第四負極接點N11係電性連接於該第四負極接腳A11，該第四共同接點N12係電性連接於該第四接地接腳A12。The fourth abnormality warning module C4 has two fourth light-emitting diodes CL41, CL42 and two fourth current limiting resistors CR41, CR42, and the two fourth light-emitting diodes CL41 and CL42 are electrically connected to the fourth common After the contact N12, the two fourth current limiting resistors CR41 and CR42 are connected in series and connected to the fourth positive electrode contact N10 and the fourth negative electrode contact N11. In the embodiment, the fourth positive contact N10 is electrically connected to the fourth positive pin A10, and the fourth negative contact N11 is electrically connected to the fourth negative pin A11. The common contact N12 is electrically connected to the fourth ground pin A12.
請參閱圖四，圖四繪示根據本發明的一具體實施例的空焊於電路板上顯示介面之示意圖。如圖四所示，於本具體實施例中，當該第一正極接腳A1開路時，連接於該第一正極接點N1之該第一發光二極體CL11會熄滅，故藉由本發明檢測電路即可馬上得知第一正極接腳A1發生異常狀況。於本具體實施例中，顯示介面A之其他接腳檢測原理相同，故不在此多作贅述。Referring to FIG. 4, FIG. 4 is a schematic diagram of the display interface of the blank soldering on the circuit board according to an embodiment of the invention. As shown in FIG. 4 , in the specific embodiment, when the first positive electrode A1 is open, the first light-emitting diode CL11 connected to the first positive contact N1 is extinguished, and thus is detected by the present invention. The circuit can immediately know that the first positive pin A1 is abnormal. In the specific embodiment, the other pins of the display interface A have the same principle, and therefore are not described here.
請參閱圖五，圖五繪示根據本發明的一具體實施例的短路焊於電路板上顯示介面之示意圖。如圖五所示，於本具體實施例中，當第一正極接腳A1與第一接地接腳A3短路時，連接於該第一正極接點N1之該第一發光二極體CL11會熄滅，故藉由本發明檢測電路即可馬上得知第一正極接腳A1或第一接地接腳A3發生異常狀況。於本具體實施例中，顯示介面A之其他接腳檢測原理亦相同，故不在此多作贅述。Referring to FIG. 5, FIG. 5 is a schematic diagram of a short-circuit soldering display interface on a circuit board according to an embodiment of the invention. As shown in FIG. 5, in the embodiment, when the first positive pin A1 and the first ground pin A3 are short-circuited, the first light-emitting diode CL11 connected to the first positive contact N1 is extinguished. Therefore, the detection circuit of the present invention can immediately know that an abnormal condition occurs in the first positive pin A1 or the first ground pin A3. In the specific embodiment, the other pin detection principles of the display interface A are also the same, and therefore will not be further described herein.
相較於習知技術，本發明之檢測焊於電路板上顯示介面之差動對腳位異常之檢測系統雖然多一道程序，且在測試時間上相對多出一部分成本，但可達到降低整體的生產成本，保持良好的訊號品質的發明功效。Compared with the prior art, the detection system for detecting the abnormality of the display interface on the circuit board of the present invention has more than one procedure, and relatively more cost in the test time, but the overall reduction can be achieved. Production cost, the invention effect of maintaining good signal quality.
1‧‧‧檢測系統1‧‧‧Detection system
A‧‧‧顯示介面A‧‧‧ display interface
B．．．電路板B. . . Circuit board
C．．．檢測電路C. . . Detection circuit
A1．．．第一正極接腳A1. . . First positive pin
A2．．．第一負極接腳A2. . . First negative pin
A3．．．第一接地接腳A3. . . First grounding pin
A4．．．第二正極接腳A4. . . Second positive pin
A5．．．第二負極接腳A5. . . Second negative pin
A6．．．第二接地接腳A6. . . Second grounding pin
A7．．．第三正極接腳A7. . . Third positive pin
A8．．．第三負極接腳A8. . . Third negative pin
A9．．．第三接地接腳A9. . . Third grounding pin
A10．．．第四正極接腳A10. . . Fourth positive pin
A11．．．第四負極接腳A11. . . Fourth negative pin
A12．．．第四接地接腳A12. . . Fourth grounding pin
C1．．．第一異常警示模組C1. . . First abnormal warning module
C2．．．第二異常警示模組C2. . . Second abnormal warning module
C3．．．第三異常警示模組C3. . . Third abnormal warning module
C4．．．第四異常警示模組C4. . . Fourth abnormal warning module
N1．．．第一正極接點N1. . . First positive contact
N2．．．第一負極接點N2. . . First negative contact
N3．．．第一共同接點N3. . . First common joint
N4．．．第二正極接點N4. . . Second positive contact
N5．．．第二負極接點N5. . . Second negative contact
N6．．．第二共同接點N6. . . Second common joint
N7．．．第三正極接點N7. . . Third positive contact
N8．．．第三負極接點N8. . . Third negative contact
N9．．．第三共同接點N9. . . Third common joint
N10．．．第四正極接點N10. . . Fourth positive contact
N11．．．第四負極接點N11. . . Fourth negative contact
N12．．．第四共同接點N12. . . Fourth common joint
CL11,CL12．．．第一發光二極體CL11, CL12. . . First light emitting diode
CR11,CR12．．．第一限流電阻CR11, CR12. . . First current limiting resistor
CL21,CL22．．．第二發光二極體CL21, CL22. . . Second light emitting diode
CR21,CR22．．．第二限流電阻CR21, CR22. . . Second current limiting resistor
CL31,CL32．．．第三發光二極體CL31, CL32. . . Third light emitting diode
CR31,CR32．．．第三限流電阻CR31, CR32. . . Third current limiting resistor
CL41,CL42．．．第四發光二極體CL41, CL42. . . Fourth light emitting diode
CR41,CR42．．．第四限流電阻CR41, CR42. . . Fourth current limiting resistor
RT ．．．終端電阻R T . . . Terminating resistor
AVcc．．．內部偏壓AVcc. . . Internal bias
圖一繪示根據本發明之一具體實施例的焊於電路板上顯示介面之示意圖。1 is a schematic diagram of a display interface soldered on a circuit board in accordance with an embodiment of the present invention.
圖二繪示根據本發明之一具體實施例之HDMI介面的SINK端簡易架構之示意圖。2 is a schematic diagram of a simple architecture of a SINK terminal of an HDMI interface according to an embodiment of the present invention.
圖三繪示根據本發明的一具體實施例之檢測系統之電路圖。3 is a circuit diagram of a detection system in accordance with an embodiment of the present invention.
圖四繪示根據本發明的一具體實施例的空焊於電路板上顯示介面之示意圖。4 is a schematic view showing the display interface of the blank soldering on the circuit board according to an embodiment of the invention.
圖五繪示根據本發明的一具體實施例的短路焊於電路板上顯示介面之示意圖。FIG. 5 is a schematic view showing the short-circuit soldering of the display interface on the circuit board according to an embodiment of the invention.
A．．．顯示介面A. . . Display interface
C．．．檢測電路C. . . Detection circuit
A1．．．第一正極接腳A1. . . First positive pin
A2．．．第一負極接腳A2. . . First negative pin
A3．．．第一接地接腳A3. . . First grounding pin
A4．．．第二正極接腳A4. . . Second positive pin
A5．．．第二負極接腳A5. . . Second negative pin
A6．．．第二接地接腳A6. . . Second grounding pin
A7．．．第三正極接腳A7. . . Third positive pin
A8．．．第三負極接腳A8. . . Third negative pin
A9．．．第三接地接腳A9. . . Third grounding pin
A10．．．第四正極接腳A10. . . Fourth positive pin
A11．．．第四負極接腳A11. . . Fourth negative pin
A12．．．第四接地接腳A12. . . Fourth grounding pin
C1．．．第一異常警示模組C1. . . First abnormal warning module
C2．．．第二異常警示模組C2. . . Second abnormal warning module
C3．．．第三異常警示模組C3. . . Third abnormal warning module
C4．．．第四異常警示模組C4. . . Fourth abnormal warning module
N1．．．第一正極接點N1. . . First positive contact
N2．．．第一負極接點N2. . . First negative contact
N3．．．第一共同接點N3. . . First common joint
N4．．．第二正極接點N4. . . Second positive contact
N5．．．第二負極接點N5. . . Second negative contact
N6．．．第二共同接點N6. . . Second common joint
N7．．．第三正極接點N7. . . Third positive contact
N8．．．第三負極接點N8. . . Third negative contact
N9．．．第三共同接點N9. . . Third common joint
N10．．．第四正極接點N10. . . Fourth positive contact
N11．．．第四負極接點N11. . . Fourth negative contact
N12．．．第四共同接點N12. . . Fourth common joint
CL11,CL12．．．第一發光二極體CL11, CL12. . . First light emitting diode
CR11,CR12．．．第一限流電阻CR11, CR12. . . First current limiting resistor
CL21,CL22．．．第二發光二極體CL21, CL22. . . Second light emitting diode
CR21,CR22．．．第二限流電阻CR21, CR22. . . Second current limiting resistor
CL31,CL32．．．第三發光二極體CL31, CL32. . . Third light emitting diode
CR31,CR32．．．第三限流電阻CR31, CR32. . . Third current limiting resistor
CL41,CL42．．．第四發光二極體CL41, CL42. . . Fourth light emitting diode
CR41,CR42．．．第四限流電阻CR41, CR42. . . Fourth current limiting resistor
Claims (10)
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| US20080040632A1 (en) * | 2006-05-24 | 2008-02-14 | Compal Electronics, Inc. | Baseboard testing interface and testing method thereof |
| WO2008133941A2 (en) * | 2007-04-25 | 2008-11-06 | Tyco Electronics Corporation | A touchscreen for detecting multiple touches |
| TW201028907A (en) * | 2009-01-21 | 2010-08-01 | Mstar Semiconductor Inc | Touch sensing method and associated circuit |
| CN201548649U (en) * | 2009-11-25 | 2010-08-11 | 广东易事特电源股份有限公司 | Test tooling of single plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080040632A1 (en) * | 2006-05-24 | 2008-02-14 | Compal Electronics, Inc. | Baseboard testing interface and testing method thereof |
| WO2008133941A2 (en) * | 2007-04-25 | 2008-11-06 | Tyco Electronics Corporation | A touchscreen for detecting multiple touches |
| TW201028907A (en) * | 2009-01-21 | 2010-08-01 | Mstar Semiconductor Inc | Touch sensing method and associated circuit |
| CN201548649U (en) * | 2009-11-25 | 2010-08-11 | 广东易事特电源股份有限公司 | Test tooling of single plate |
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