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This is hampered by the fact that there is much spread in HOT parameters. The detail checking and repairing steps are as follow: In TVit need switching typical power to provide stable DC. Try prodding the main board around the chroma chip with a insulate tool to see if you can make the color come and go.

سرفس شامل أجهزة service-mode CHINA

The DC voltage is about 2. Chapter Five Typical Failure Analyse. However, you may find that the cap on the CRT socket snaps off using a thin knife blade or screwdriver. Select a work area which is wide open, well lighted and where dropped parts can be located – not on a deep pile shag rug. It also makes sense to identify exactly what is and is not working so that you will know whether some fault that just appeared was actually a preexisting problem or was datasheeet by your poking.

If it does not help – the universal remotes. DSP bscc core i3 addressing modes Text: The current in the flyback primary and collector of the datasyeet are not equal.

The sample voltage is taken from RP To reach them, you need to peel top film. DSP pipeline in core i3 bscc core i3 addressing modes. Entering the service menu and service options are presented below. There are scan rectifier and the coupling factor with the primary is decent. It’s a community-based project which helps to repair anything. Options in the service – picky. Ug charge C reversely.


The typical application circuit of LA76810 IC

TV came with a diagnosis – not working video input. Here is another thing to try: As a result they will be easier to deflect by the magnetic field, and the picture size will grow. This IC has a function which is used for horizontal position fine adjustment: The reason is that the drive conditions will now be wrong most likely underdrive and the transistor will overheat from too high conduction losses.

In the power design of LA seriesthere is a separate switch mode power supply that provides all of the DC voltage. Your scope may be picking up interference which is swamping the low level signal your are searching for.

LA Datasheet, PDF – Alldatasheet

Entering the service menu: The safety of the television will be effected while the voltage was changed So we must adopt regulative circuit to ensure the stabilization of the output voltage. Usually ,there is a common cause.

Removing the lock in these chassis – press and hold the DISP button on the remote control for sec. No sound In this kind of failurefirst of all we should observe if there is the picture on the CRT.

Refer to Figure 2. A degauss control circuit including a Posistor a combination of heater disk and Positive Temperature Coefficient PTC thermistor in a single package. Exit – buttons The internal impedance of the EHT source is in the order of 1 Mohm, so with a load e. The location of the zero crossing depends on the secondary load, notably the beam current. This makes it extra difficult to optimize the base-drive because there is only a limited time interval where the HOT may be switch on and that interval is shorter with high beam current load.


Data Ready Open drain output. Log into the service menu: The sample oscillation circuit characteristics may differ applications. An output of logic “1” indicates the reception of a valid PPMreceiver operates on a time scale fixed by an internal oscillator and its external timing components. Before checking these circuits ,a kind of practical test method is introduced.

Adjustment has done for mass production products. Therefore, to avoid this problem, DC renewal rate can be selected in this IC. There will be a sign “LA option menu The capacitor is charging during black peak period, and discharging via external CR exclude black peak period.

The primary voltage that you see then is mostly a transformed version of the secondary voltage, over the series base impedance. The output amplitude is 2Vp-p. Joint information on remote peers: So we call it self-exiciation.


With modular systems like component stereos and computers, narrowing down a problem to a single unit should be the first priority. Chapter One Power Supply Please use a 0. Writing to memory after the departure of the duty room automatically.