PG-5 TROUBLE CHART
(Continued)
See Section 281
|
| Trouble | Indication | Cause | Remedy |
Low Volume
(Continued) | Low volume on one projector only. | Dirty exciter lamp. | Clean the exciter lamp. |
| Old exciter lamp. | Replace exciter lamp. |
| Optical system out of adjustment. | Adjust the optical system. See operating instruction book. |
| Defective photo-cell. | Replace photo-cell. |
| Poor Quality | | Poor film. | Use good film. |
| Defective photo-cell. | Replace photo-cell. |
| Sound gate open. | Close sound gate. |
| Optical system out of adjustment. | Adjust the optical system. See operating instruction book. |
| Defective amplifier tube. | Replace all amplifier tubes. |
| Defective UX-281 tubes. | Replace UX-281 tubes. |
| "Wows" | "Wows" noticeable only when projector is first started. | Cold lubricant in projector bearings and viscous damping device. (Type PP6A projector only.) | Run projector for 15 minutes before the show starts. |
| "Wows heard after machine has warmed. | Viscous damping device not properly adjusted. (Type PP-6A projector only.) | Adjust the viscous damping device. See section 273. |
| Impedance flywheel and roller not turning properly. (Type PP-6B projector only.) | Oil impedance flywheel bearing well with "Three-in-One" oil. |
| Hum | | Hum adjustments not properly made. | Adjust for hum. |
| Photo-cell shields not installed. | Install photo-cell shields. |
| Defective UX-281 tube. | Replace UX-281 tubes. |
| Noisy Operation | | Dirty film. | Clean film or use a new print. |
| Dirty sound gate or constant speed sprocket. | Clean sound gate and constant speed sprocket. |
| Frame line or sprocket hole noise, "motor-boating". | Guide rollers of sound gate out of adjustment. | Adjust the guide rollers. |
| Film weaving in sound gate. | Tension springs of sound gate not properly adjusted. (Type PP-6B projector only.) | Adjust the tension springs of the sound gate. See section 91. |
