DATASHEET LA7840 PDF


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TINT option in menu5 at sevice mode to get the right hue. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity magnetic loop. Email Address never made public. Tighten the clamp screw of the deflection yoke. Components indicated by mark in the parts list and the schematic diagram designate components in which safety can be of special significance. Receive 60dB Datashwet signal.

DigChip is a provider of integrated circuits documentation search engine, it’s also distributor agent between buyers and distributors excess inventory stock. Must be warm up for 30 minutes or more and degauss CRT thoroughly with demagnetizer before alignment. September 26, at 1: Leave a Reply Cancel reply Enter your comment here And we have the special transistor test instrument, LCR instruments to test the passive components, transistor, etc. It is particularly recommended that only parts designated on the parts list in this manual be used for com-ponent replacement designated by mark.

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The adjusted level is stored in Custom mode. Adjust L coil to obtain 3. D 22H B B. D 21H B G. Thanks ls7840 dropping by Electronics Club Fans! Screen Voltage Adjustment a.

CV-121 S — LA76814-LA8633XX-TDA9852-LA7840-STR-G6653

datasheeet Before color purity adjustment, Warm up the TV set over 15 minutes and fully degauss. Refer to this service manual, high voltage adjustment for specific high voltage limit. Pin Details of IC. Press MENU key to exit factory mode. I ponder why the other experts of this sector do not understand this.

HPOS to get right display position. Please pull out plug before equipment.

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BRI option to get a scale to be seen a little brightness Only two rows can be seen. August 21, at 1: After enters each menu, you can select the desired adjusting item by the PROG. Check the X-Ray image of test object according to the Pin definition on original datasheet, identify if the chips Pin definition is consistent.

Sweep Signal Generator 7. Notify me of new posts via email.

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(PDF) LA7840 Datasheet download

If the Picture Tube is being replaced, mount the Degaussing Coil on the picture tube. Test the voltage with digital voltage meter between C two terminals. Contact Supplier Start Order.

Pattern Generator outputs Enter the video menuyou can select datsheet picture quality instantly among four preset modes and one user-set mode. Ask questions and get answers to fix, repair, and service any product. Not exactly what you want?

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Use American army regulation chemical agent wipe the test object, to identify if this chips has been remarked or not. 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. LVL 16 4 Mono Spatial Linear Psuedo2. Fix the convergence magnets by turning the clamper.