F. H. Richardson's bluebook of projection (1942)

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1942
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000688
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
July 11, 2024
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672 RICHARDSON'S BLUEBOOK OF PROJECTION THE TROUBLE TESTS • 12. Switch off stage speakers (if audience present) and tern j porarily open high resist . ance circuits between p.e.c. | output and head output, listen for squeal in monitor speaker 13. By visual inspection, ohm meter, tugging wires and replacement of parts if necessary, check between point where open circuit caused squeal and p.e.c. 14. By visual inspection, ohm meter, tugging wires and replacement of parts if necessary, check between p.e.c. output and head output 15. Clear obstruction, re-thread 16. Replace exciter lamp 17. Check output voltage, exciter lamp supply unit 18. Check exciter lamp supply unit per Chart No. 4. 19. Check line between exciter lamp supply unit and exciter lamp for open, short or ground 20. Check exciter lamp supply . unit per Chart No. 7. 21. Replace exciter lamp 22. Check output voltage, exciter lamp supply unit 23. Check exciter lamp supply unit per Chart No. 5. 24. Check line between exciter lamp supply unit and exciter lamp for partial short or ground, or high resistance contact THE CONDITION FOUND Squeal heard No squeal heard TROUBLE FOUND TROUBLE FOUND TROUBLE CURED TROUBLE CURED New lamp does not light New lamp burns out No output voltage Output voltage normal TROUBLE FOUND TROUBLE FOUND TROUBLE FOUND TROUBLE CURED New lamp lights dim Voltage low Voltage normal TROUBLE FOUND TROUBLE FOUND NEXT TEST • No. 13 No. 14 No. 17 No. 20 No. 18 No. 19 No. 22 No. 23 No. 24