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 #:
000684
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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668 RICHARDSON'S BLUEBOOK OF PROJECTION To Determine the Cause and Correction off LOW OUTPUT FROM RECTIFIER THE TROUBLE TESTS THE CONDITION FOUND NEXT TEST 1. • Check line voltage • Line voltage low Line voltage normal • Test No. Test No. 2 3 2. Adjust line voltage regulator TROUBLE CURED 3. Replace tubes TROUBLE CURED Output remains weak Test No. 4 4. Inspect condenser fuses All condenser fuses good, or no fuses One condenser fuse open Test No. Test No. 7 5 5. Replace open fuse TROUBLE CURED New fuse won't hold Test No. 6 6. Replace associated condenser TROUBLE CURED 7. Inspect output voltage regulators for misadjustment, open or short TROUBLE FOUND Output voltage regulators normal Test No. 8 8. Check filament transformer voltages Input voltage low Output voltage low, input normal Voltages normal Test No. Test No. Test No. 14 13 9 9. Check plate transformer voltaqes Input voltage low Output voltage low, input normal Voltages normal Test No. Test No. Test No. 12 II 10 to. Check condensers and bleeders for open circuit TROUBLE FOUND II. Replace plate transformer TROUBLE CURED 12. Check for dirty power switch or other high resistance between power source and transformer TROUBLE FOUND 13. Replace filament transformer TROUBLE CURED 14. Check filament transformer per Test 12 TROUBLE FOUND