JPS5651731A - Control circuit of projector - Google Patents

Control circuit of projector

Info

Publication number
JPS5651731A
JPS5651731A JP12780179A JP12780179A JPS5651731A JP S5651731 A JPS5651731 A JP S5651731A JP 12780179 A JP12780179 A JP 12780179A JP 12780179 A JP12780179 A JP 12780179A JP S5651731 A JPS5651731 A JP S5651731A
Authority
JP
Japan
Prior art keywords
switch
motor
relay
operated
rectifier
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
JP12780179A
Other languages
Japanese (ja)
Inventor
Kenichi Atsumi
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.)
SANWA DENKI KK
Original Assignee
SANWA DENKI KK
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 SANWA DENKI KK filed Critical SANWA DENKI KK
Priority to JP12780179A priority Critical patent/JPS5651731A/en
Publication of JPS5651731A publication Critical patent/JPS5651731A/en
Pending legal-status Critical Current

Links

Landscapes

  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE: To make possible the simplification of controlling and remote controlling by providing respective touch switches for forward running and backward running and holding relays.
CONSTITUTION: When a forward run switch 4 is operated, the DC power source from a rectifier 2 is supplied to a film-feeding DC motor 8; in addition, a forward run relay 6 is operated by the output of a rectifier 9 and its contact is changed over from position 25 to 24, whereby the forward running of the motor 8 is maintained. When a switch 12 is operated, a lamp relay 13 operates to put a projection lamp 14 into a lighted state. Next, when a switch 5 is operated during the forward running of the motor 8, the power supply path to the motor 8 is turned off and the contact of the relay 6 resets to the position 25. The motor 8 is then energized to reverse run by the contact position 21 of the switch, the contact position 22 of the switch 5 and the contact position 27 of a reverse run relay 7. The relay 7 is operated by a rectifier 10 to maintain the reverse run state. The lamp 14 is lighted as well in the similar manner.
COPYRIGHT: (C)1981,JPO&Japio
JP12780179A 1979-10-03 1979-10-03 Control circuit of projector Pending JPS5651731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12780179A JPS5651731A (en) 1979-10-03 1979-10-03 Control circuit of projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12780179A JPS5651731A (en) 1979-10-03 1979-10-03 Control circuit of projector

Publications (1)

Publication Number Publication Date
JPS5651731A true JPS5651731A (en) 1981-05-09

Family

ID=14969006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12780179A Pending JPS5651731A (en) 1979-10-03 1979-10-03 Control circuit of projector

Country Status (1)

Country Link
JP (1) JPS5651731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163363U (en) * 1983-04-20 1984-11-01 小松ゼノア株式会社 Pruning workbench
US5523693A (en) * 1992-05-30 1996-06-04 Hewlett-Packard Company Balanced signal source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163363U (en) * 1983-04-20 1984-11-01 小松ゼノア株式会社 Pruning workbench
JPH0224443Y2 (en) * 1983-04-20 1990-07-04
US5523693A (en) * 1992-05-30 1996-06-04 Hewlett-Packard Company Balanced signal source

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