JPS55136711A - Self-diagnosis unit for distributing amplifier - Google Patents

Self-diagnosis unit for distributing amplifier

Info

Publication number
JPS55136711A
JPS55136711A JP4367379A JP4367379A JPS55136711A JP S55136711 A JPS55136711 A JP S55136711A JP 4367379 A JP4367379 A JP 4367379A JP 4367379 A JP4367379 A JP 4367379A JP S55136711 A JPS55136711 A JP S55136711A
Authority
JP
Japan
Prior art keywords
output
threshold value
signal
fed
value detection
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
Application number
JP4367379A
Other languages
Japanese (ja)
Inventor
Keiji Mori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4367379A priority Critical patent/JPS55136711A/en
Publication of JPS55136711A publication Critical patent/JPS55136711A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

Abstract

PURPOSE:To establish the economical self-diagnosis unit without complicated detection system, by providing the amplitude detection function near the output terminal of each amplifier system and adding the threshold value detection function to the amplitude detection function. CONSTITUTION:In the test mode, the switch 13 is selected from the input signal terminal 11 to the signal generator 12. The signal generator 12 produces the signal of which output level is sequentially and in stepwise increased under the control of the control circuit 20. This signal is fed to the amplifier systems 151-15N at the distributor 14, and the output is fed to the threshold value detection circuits 181- 18N via the coupers 161-16N, and detection element 171-17N. The output of the threshold value detection circuit is fed to the control circuit 20 via the selection mechanism 19. By sequentially increasing the output level, when the output of the threshold value detection circuit changes from 0 to 1 level, the control circuit 20 stops the change in the output level of the generator 12 and outputs the output relating to the said output level to the data recording system from the terminal 22.
JP4367379A 1979-04-12 1979-04-12 Self-diagnosis unit for distributing amplifier Pending JPS55136711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4367379A JPS55136711A (en) 1979-04-12 1979-04-12 Self-diagnosis unit for distributing amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4367379A JPS55136711A (en) 1979-04-12 1979-04-12 Self-diagnosis unit for distributing amplifier

Publications (1)

Publication Number Publication Date
JPS55136711A true JPS55136711A (en) 1980-10-24

Family

ID=12670351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4367379A Pending JPS55136711A (en) 1979-04-12 1979-04-12 Self-diagnosis unit for distributing amplifier

Country Status (1)

Country Link
JP (1) JPS55136711A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63158905A (en) * 1986-12-23 1988-07-01 Tokyo Keiki Co Ltd High frequency power amplifier
JPS63158906A (en) * 1986-12-23 1988-07-01 Tokyo Keiki Co Ltd High frequency power synthesizer
JPS63160403A (en) * 1986-12-23 1988-07-04 Tokyo Keiki Co Ltd High frequency power synthesizer
JPH0648219U (en) * 1993-03-25 1994-06-28 株式会社トキメック High frequency power amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63158905A (en) * 1986-12-23 1988-07-01 Tokyo Keiki Co Ltd High frequency power amplifier
JPS63158906A (en) * 1986-12-23 1988-07-01 Tokyo Keiki Co Ltd High frequency power synthesizer
JPS63160403A (en) * 1986-12-23 1988-07-04 Tokyo Keiki Co Ltd High frequency power synthesizer
JPH0648219U (en) * 1993-03-25 1994-06-28 株式会社トキメック High frequency power amplifier

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