JPH0486923U - - Google Patents
Info
- Publication number
- JPH0486923U JPH0486923U JP12631890U JP12631890U JPH0486923U JP H0486923 U JPH0486923 U JP H0486923U JP 12631890 U JP12631890 U JP 12631890U JP 12631890 U JP12631890 U JP 12631890U JP H0486923 U JPH0486923 U JP H0486923U
- Authority
- JP
- Japan
- Prior art keywords
- expansion board
- switching circuit
- signal switching
- board
- signal
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図は本考案の一実施例のブロツク図である
。
１……メインボード、２……システム拡張ボー
ド、３……ＩＣスイツチ、４……ジヤンパー線、
５……コネクタ接続部。
FIG. 1 is a block diagram of one embodiment of the present invention. 1... Main board, 2... System expansion board, 3... IC switch, 4... Jumper wire,
5...Connector connection part.
Claims (1)
テム向上を図る民生用電子機器において、拡張ボ
ードの端子より判別信号を取り出し、拡張ボード
の有無により、信号切換回路に接続している回路
を互いに接続したり切り離したりさせることを特
徴とする信号切換回路。 In consumer electronic equipment where an expansion board is installed on the main board to improve the system, the discrimination signal is extracted from the expansion board's terminal, and depending on the presence or absence of the expansion board, the circuits connected to the signal switching circuit can be connected to each other. A signal switching circuit characterized by being disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12631890U JPH0486923U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12631890U JPH0486923U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486923U true JPH0486923U (en) | 1992-07-28 |
Family
ID=31873879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12631890U Pending JPH0486923U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486923U (en) |
-
1990
- 1990-11-30 JP JP12631890U patent/JPH0486923U/ja active Pending
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