DATASHEET LA7840 PDF

Goltigal By continuing to use this website, you agree to their use. Notify me of new comments via email. Is anyone else having this problem or is it a issue on my end? With X-ray detection, we can find out if the internal structure of test objects are consistent or they are mixed parts; Mixed parts means there are different size wafer, different base, different wire frame, different lineup from the same batch products, etc.

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Moogujin Care must be taken to keep these assemblies intact, unless picture tube is being replaced. Under are some webpages worth checking out[…].

Fill in your details below or click an icon to log in: By continuing to use this website, you agree to their use. Adjust the focus knob of FBT to get the clearest picture. Contact Supplier Start Order. I simply stumbled upon your blog and wanted to say that I have really enjoyed surfing around your weblog posts. June 19, at 6: Must be warm up for 30 minutes or more and degauss CRT thoroughly with demagnetizer before alignment. Fix them after the good overall convergence got.

Set the picture mode at normal mode. Take a look around and grab the RSS feed to stay updated. Tools and equipments for adjustment 1. Refer to this service manual, high voltage adjustment for specific high voltage limit. Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is obtained.

Take out the die with chip anatomical methods, analysis the die logo, wire, structure, MASK etc, to identify whether the chips are from original factory. SC 0 Align vertical S-correction 5 H. La datasheet pdf BRI option to get a scale to be seen a little brightness Only two rows can be seen.

If high voltage exce-eds specfied limits, take necessary corrective action. Before color purity adjustment, Warm up the TV set over 15 minutes and fully degauss. March 16, at 1: Go to factory mode MENU2 status according to Enter the video menuyou can select the picture quality instantly among four preset modes and one user-set mode. Emphasis on checking outer packing condition, checking complete parts number, date code and lot code datasheeet the label; Chips marking and body condition; terminal layout, coplanarity and electroplating status, etc.

When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly,such as,control knobs, adjustment covers or shields, barriers,isola- tion resistor-capacitor networks etc. DC Regulated power supply 5.

Take a search in case you want[…]. To avoid such hazards, the high voltage must be maintained within specified limit. I was examining some of your content on this website and I datashedt this web site is very informative! August 21, at 1: Components indicated by mark in the parts list and the schematic diagram designate components in which safety can be of special significance. Set TV standard status. Do not disturb the deflection yoke or magnet assembly on the picture tube Neck.

After adjusting well, pull out six-row-wire. In menu 5, select SUBB. Properly install the degaussing coil and picture tube grounding lead on the picture tube. TOP Related.

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Datasheet Part

Nijora Not exactly what you want? Deflection circuits not functioning or shorted horizontal circuit? Check datasheeet X-Ray image of test object according to the Pin definition on original datasheet, identify if the chips Pin definition is consistent. Contact for latedt details. Parts can be ship out soon as the delivery date as the agreement. March datashwet, at 2: March 1, at Underneath are some webpages worth checking out[…].

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LA78040 — схема включения и аналоги

Tojin It is particularly recommended that only parts designated on the parts list in this manual be used for com-ponent replacement designated by mark. Receive a dotted pattern. No deviations fromresistance wattage or vol-tage ratings may be made for replacement items designated by mark.!!! Using datashdet microscope to test components from degrees. June 19, at 6: Latest checked keywords mail. Take a search in case you want[…]. Adjust color purity magnetic loop to make the green area at the center of CRT screen.

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