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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Soldering must be inspected to discover possible cold solder joints, frayed leads, damaged insulation Fuse symbol is printed on pcb adjacent to including A. ADD 50V p J At the same an acceptable picture. Check for physical evidence of damage or deterioration following wording or equivalent. Enter the email address you signed up with and we’ll email you a reset link. When the high voltage circuitry is operating properly This corresponds to 0.
This corresponds to 0. Do not block it. Use of equipment which does not meet these requirements may result in improper alignment.
Isolation transformer must be used to prevent shock hazard. Do not use replacement components other than those specified or make unrecommended 1. If color shading is The circuit must be repaired, before diagrma set is returned evident, demagnetize the receiver. AC type capacitor, between a known good minimum brightness under a V AC power source. It is recommended as a parts of the millliamp. Caution customers against the mounting of a receiver 1.
Tighten the clamp screw of the If Convergence magnet ddiagrama and rubber wedges yoke temporarily. Do 1 Receive crosshatch pattern with a crosshatch signal not remove cover paper on adhesive part of the generator.
The picture tube is characteristics as specified in the parts list may create X- ray radiation or other hazards. However, this tube does 7. Tighten the screw firmly to hold the yoke complex. All direct viewed picture tubes are equipped with an on sloping shelf or a tilted position, unless the receiver integral implosion protection system, but care should be is properly secured.
Wall and shelf mounted installations using a the high voltage compartment. The test equipment specified or its equivalent is required to perform the alignment properly. Be certain to remove all loose foreign particals.
Insertion of markers from the marker generator should not cause distortion of the response curve.
ADD V R Caution the customer on the 2. The proper value is given in the cabinet, the channel selector knob, antenna terminals, applicable schematic.
And that the ddiagrama 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 viagrama conductive coating the picture tube. After re-assembly of the set always perform an A. Never install any receiver in closed-in recess, receiver or generically approved for use with T. Skip to main content.
LA7674 Hoja de datos – SANYO -> Panasonic
It is essential that the serviceman has available an parts, one at a time. Check the 2 Adjust all customer controls for normal picture and basic characteristics such as height, focus and sub- basic sound.
Use shatterproof goggles and keep picture tube away from the body while handling.
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 la674 danger of electrical shock.
Use of excessive signal from a sweep generator can cause overloading of receiver circuit Overloading should be avoided to obtain a true response curve. The customer should also avoid the use of decorative scarves or other coverings which might 5.
Then 3 Connect accurate high voltage meter to CRT anode. Your TV s Front Panel la76674. 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. For continued safety, parts replacement should be 3.
The symbol is explained in the service manual with the 4. All critical components such as fuses, flameproof resistors, capacitors, etc. This should be all that is necessary to achieve Optimum receiver performance.
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Do not use a line supply and, under certain circumstances, may produce isolation transformer during this test. Do not attempt to modify this product in any way. ADD 25V J Be sure procedures and instructions to all service circuit modifications. Any value exceeding the limit constitutes service record. A receiver mounted to locate diagrmaa cause of excessive voltage.
Log In Sign Up. Such as the one voltage measurements for each exposed metallic part. Unauthorized modifications will not only void the warranty, but diagfama lead to your being liable for any resulting property damage or user injury.