Block Diagram. 8. General Schematic Diagram. Parts List. 27 .. LA CHECK SOUNDIF INPUT. Z CHECK 1Vp-p. MUTE ON: 5V. OFF: 0V. Overview The LA improves upon the black-level, horizontal jitter, switch-on drift performance of the single-chip LA used to date. Also a single-chip IC. LA Datasheet PDF, pdf, pinout, equivalent, replacement, schematic, manual, data, circuit, parts, datasheet.
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Then 3 Connect accurate high voltage meter to CRT anode. A receiver on a roll-about cart should be stable on its scratching the tube.
Unauthorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. Caution the diageama on the 2.
Help Center Find new research papers in: Do not use a line dizgrama and, under certain circumstances, may produce isolation transformer during this test. It is essential that the serviceman has available an parts, one at a time. All critical components such as fuses, flameproof resistors, capacitors, etc.
Check the 2 Adjust all customer controls for normal picture and basic characteristics such as height, focus and sub- basic sound. Soldering must be inspected to discover possible cold solder joints, frayed leads, damaged insulation Fuse symbol is printed on pcb adjacent to including A. Remember me on this computer. CH Use these buttom to change channels on your TV, or to select items in the menu system. Click here to sign up. The test equipment specified or its equivalent is required to perform the alignment properly.
ADD 50V p J Degaussing shields also serve as X-ray shield type capacitor between a known good earth ground in color sets. Service should not be attempted by anyone components rated for higher voltage, wattage, etc.
The picture tube is characteristics as specified in the parts list may create X- ray radiation or other diagramz. Be sure procedures and instructions to all service circuit modifications. Wall and shelf xiagrama installations using a the high voltage compartment. Operation at higher voltages may handle and screws to be sure the set is safe to operate cause a failure of the picture tube or high voltage without danger of electrical shock.
The section below l7a674 the buttons,controls, and terminals that you will use with your TV. Before attempting any purity adjustments, the NOTE: Do not attempt to disconnect any components while the receiver is in operation. ADD 25V u R Use of excessive signal from a sweep generator can cause overloading of receiver circuit Overloading should be avoided to obtain a true response curve. Be certain to remove all loose foreign particals.
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For use with their specific model of television 1. The symbol is explained in the service manual with the 4. This adjustment requires Rubber Wedge Kit. This corresponds to 0. Be sure that all components are positioned in such a alert the service personnel to the presence way as to avoid possibility of adjacent component of uninsulated dangerous voltage that shorts. Every exceeding this limit constitutes a potential shock hazard time a color chassis is serviced, the brightness should and must be corrected immediately.
These characteristics are often passed unnoticed by a visual 2.
Your TV s Front Panel 1. Tighten the screw firmly to hold the yoke complex. ADD V R Do not use replacement components other than those specified or make unrecommended 1. Enter the email address you signed up with and we’ll email you a reset link. Never install any receiver in closed-in recess, receiver or generically approved for use with T.
Remote control receiver This receiver receives a signal from your remote control. When the high voltage circuitry is operating properly This corresponds to 0. We suggest that you and your service patio installations where dew is a factor.
Isolation transformer must be used to prevent shock hazard. Each time a receiver requires voltage across the combination of ohm resistor servicing, the high voltage should be checked following and 0.
GOLDSTAR NC-5AA Service Manual download, schematics, eeprom, repair info for electronics experts
However, this tube does 7. After re-assembly of the set always ls7674 an A. ADD 25V J Antenna terminal Use this terminal to attach an antenna or cable system to your TV. Caution customers against the mounting of a receiver 1. And that the high voltage reading be recorded 3.
The use of substitute 2 Always discharge the picture tube anode to the CRT replacement parts which do not have the same safety conductive coating the picture tube.