JP2507711Y2 - スピ―カ回線監視回路 - Google Patents

スピ―カ回線監視回路

Info

Publication number
JP2507711Y2
JP2507711Y2 JP1988031501U JP3150188U JP2507711Y2 JP 2507711 Y2 JP2507711 Y2 JP 2507711Y2 JP 1988031501 U JP1988031501 U JP 1988031501U JP 3150188 U JP3150188 U JP 3150188U JP 2507711 Y2 JP2507711 Y2 JP 2507711Y2
Authority
JP
Japan
Prior art keywords
circuit
speaker
speaker line
voltage
set value
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
Application number
JP1988031501U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01135898U (enrdf_load_stackoverflow
Inventor
益樹 籠宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Radio Co Ltd
Original Assignee
Japan Radio Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP1988031501U priority Critical patent/JP2507711Y2/ja
Publication of JPH01135898U publication Critical patent/JPH01135898U/ja
Application granted granted Critical
Publication of JP2507711Y2 publication Critical patent/JP2507711Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Circuit For Audible Band Transducer (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
JP1988031501U 1988-03-09 1988-03-09 スピ―カ回線監視回路 Expired - Lifetime JP2507711Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988031501U JP2507711Y2 (ja) 1988-03-09 1988-03-09 スピ―カ回線監視回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988031501U JP2507711Y2 (ja) 1988-03-09 1988-03-09 スピ―カ回線監視回路

Publications (2)

Publication Number Publication Date
JPH01135898U JPH01135898U (enrdf_load_stackoverflow) 1989-09-18
JP2507711Y2 true JP2507711Y2 (ja) 1996-08-21

Family

ID=31257397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988031501U Expired - Lifetime JP2507711Y2 (ja) 1988-03-09 1988-03-09 スピ―カ回線監視回路

Country Status (1)

Country Link
JP (1) JP2507711Y2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9060218B2 (en) 2011-09-17 2015-06-16 Denso Corporation Failure detection device for vehicle speaker

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07129875A (ja) * 1993-11-04 1995-05-19 Nippon Signal Co Ltd:The 警報装置
JP4534751B2 (ja) * 2004-12-21 2010-09-01 パナソニック電工株式会社 圧力波発生装置
WO2009087772A1 (ja) * 2008-01-10 2009-07-16 Toa Corporation スピーカラインの検査装置
JP5325559B2 (ja) * 2008-12-18 2013-10-23 新日本無線株式会社 スピーカ診断方法および装置
JP6062716B2 (ja) * 2012-11-01 2017-01-18 有限会社オービット 異常検知装置
CN108781340B (zh) * 2016-03-25 2020-10-02 雅马哈株式会社 扬声器动作确认装置及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5765100A (en) * 1980-10-08 1982-04-20 Toshiba Corp Operation check system for speaker
JPS57181200U (enrdf_load_stackoverflow) * 1981-05-13 1982-11-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9060218B2 (en) 2011-09-17 2015-06-16 Denso Corporation Failure detection device for vehicle speaker

Also Published As

Publication number Publication date
JPH01135898U (enrdf_load_stackoverflow) 1989-09-18

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