VINTAGE OWNER'S MANUALS, SERVICE MANUALS, BROCHURES AND PUBLICATIONS
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1951 Zenith Porthole Television Set Owners Manual (continued)
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Automated Summary of Text on this Page:
HORIZONTAL HOLD
Because of the extremely stable circuits in your new Zenith, a setting in the approximate center of the range of this control will be satisfactory normally. If the picture on the receiver screen appears to have a tendency to move across the screen horizontally or if it assumes a broken •streaked appearance as indicated in Fig. 7, it is to be adjusted to the center of the range in which the picture remains "locked-in."
CONTRAST CONTROL
This control plays an important role in the operation of your receiver as it is used in adjusting the picture shown on the screen for maximum distinction between the black and white portions. It is to be noted that a setting too far in a counter-clockwise direction will result in a faded "washed out" picture presentation on the screen. Fig. 8. (This effect can also be the result-of too advanced, setting of the brightness control which has been discussed in a previous paragraph.) Your own eye discrimination will soon educate you as to the proper setting of this control.
Having completely read the foregoing instructions you should now be sufficiently well versed to operate your new Zenith television receiver. With your receiver adjusted for your location, only three simple operations will be necessary to bring you the ' Best in Television." They are:
Turn On-Off switch volume control to On\x9D position. Allow warm-up period.
Turn Station Selector Switch to desired channel (Be sure this station is on the air). It may now be necessary to adjust the volume control.
With Contrast Control in full counter clockwise position, adjust Brightness control until light is just visible on screen. Contrast control is then to be advanced to the position which results in a picture of most pleasing appearance. (See Fig. 9.)
(Fig. No. 7) Adjustment of Horizontal Hold Necessary
You are viewing a low-resolution preview. Available here is the high-res/19 page PDF version of this document ($1.99), most printers can output this nearly identically to the original document.
Automated Summary of Text on this Page:
HORIZONTAL HOLD
Because of the extremely stable circuits in your new Zenith, a setting in the approximate center of the range of this control will be satisfactory normally. If the picture on the receiver screen appears to have a tendency to move across the screen horizontally or if it assumes a broken •streaked appearance as indicated in Fig. 7, it is to be adjusted to the center of the range in which the picture remains "locked-in."
CONTRAST CONTROL
This control plays an important role in the operation of your receiver as it is used in adjusting the picture shown on the screen for maximum distinction between the black and white portions. It is to be noted that a setting too far in a counter-clockwise direction will result in a faded "washed out" picture presentation on the screen. Fig. 8. (This effect can also be the result-of too advanced, setting of the brightness control which has been discussed in a previous paragraph.) Your own eye discrimination will soon educate you as to the proper setting of this control.
Having completely read the foregoing instructions you should now be sufficiently well versed to operate your new Zenith television receiver. With your receiver adjusted for your location, only three simple operations will be necessary to bring you the ' Best in Television." They are:
Turn On-Off switch volume control to On\x9D position. Allow warm-up period.
Turn Station Selector Switch to desired channel (Be sure this station is on the air). It may now be necessary to adjust the volume control.
With Contrast Control in full counter clockwise position, adjust Brightness control until light is just visible on screen. Contrast control is then to be advanced to the position which results in a picture of most pleasing appearance. (See Fig. 9.)
(Fig. No. 7) Adjustment of Horizontal Hold Necessary
Page 8 of 19