BIT3193G DATASHEET PDF

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Not all methods are checked by the author of the article, therefore can not be recommended to repairmen who do not have sufficient experience and theoretical knowledge. For the purpose of fire safety first of all and to prevent high voltage supply of lamps to other circuits in the LCD and LED TVs, the inverter LED driver protection is provided, which turns off the backlight or the entire TV in emergency modes. When repairing and diagnosing an LCD TV, it often becomes necessary to check the individual lighting components — lamps, transformers and other power elements, but it is not always easy to diagnose them due to the instantaneous blocking of the operation of the lamp power converter LED.

Sometimes it is impossible even to determine the reason for leaving to the defense. The backlight often does not even have time to flash, or lights up and immediately goes out. Often even it is not clear — the lamp or the inverter is to blame. It is not possible to carry out the necessary measurements, generation is disrupted for various reasons, for example, due to distortion in the loads.

Joint efforts and researches of masters of various repair conferences were options for blocking the protection of inverters in order to obtain the possibility of diagnostics. In such cases, if the inverter can operate in emergency mode, you can already see, which of the lamps does not shine, or identify one of the faulty transformers … or detect a defect in other circuits. The same situation can arise with LED backlighting.

Readers are invited to review previously published examples of how to disable the inverter protection for the following PWM controllers. The list is periodically updated as new data arrive. Information was kindly provided by Rottor at the repair forum monitor. Separately, the protection was not blocked. Removal of protection for BIT When the protection is activated, the voltage at terminal 5 is about 3, 5 V.

With the voltage at pin 5, from 0. Unlock the TL protection: — The protection lock in the TL chip analogous to BA is reduced to a simple action by closing pin 15 to ground. But if you do this after the protection is triggered for example by tweezers , nothing happens because the trigger protection is already blocked from the feedback sensors.

In the operating mode of the monitor, the reset of the protection trigger is updated automatically. FAN From the participant of the forum monitor. BNC with live transformers in the inverter, decided to throw trances on everything known … rd block, the primary trance paralleled, and on the 1st leg FAN put a zener diode on 4.

Zener is not needed, in this inclusion it still does not work. I guess you can and resistor. The LED does not light up. The BD has 17 pins. It was necessary to bypass the protection of BDFS, in a trance one of the secondarys was shortened — the winding was removed. For a long time I tried to do something on the reverse link, nothing happened.

The device has earned, successfully passed the run and issued. Information provided by the participant serge fetjunin: Quote:. TAGN instead of the resistor is put light-diodes and the adjustable brightness remains.

Information provided by the participant Captain: Quote:. OZ Information provided by the participant Nlfjk: Quote:. Works with a single lamp, only contrast is adjustable. Monitor Asher al More options from other forums:. Disabling protection on ms BITA. Verified personally. Works OK. MP From the participant monitor.

Disable MP protection — Short out pin 5 to the chassis. OZTGN — di. Connect the stabilizer LED from pin 12 to ground, there also supply power from the 5 V source through the resistor — Ohm. By analogy with MP, only there is FT — 4th leg. MPEY From the participant monitor. This blocks the protection of both driver channels. MAX From the participant monitor. SEM From the participant monitor.

MSC From the participant monitor. KHA From the participant monitor. SP From the participant monitor. SP — sop16 4ccfl LED with 5 timer pin per case. Microcircuit SP Q. LED from 19 feet to the common wire cathode. MPEF From the participant monitor. BD From the participant monitor. The panel backlight adjustment will not work. OBQP From the participant monitor. BDVF From the participant monitor. From the participant monitor. Resistor 10k, with pin 3 per weight. The native condender for this pin is evaporated, in its place-a resistor.

I put the LED 15pin on the chassis with a voltage of 1. The backlight does not work. In the strapping of the shim, all the resistors are normal, the image parameters are adjusted. FAN Oleg Nemtsov oleg-nemcv rambler. LED on the 17th output. BDF From the participant monitor. The backlight turned off, installed a 4.

BDFP From the participant monitor. The protection is blocked by installing the st. SAQ From the participant monitor. SAQ is set to TL with a rotation of degrees. FAN From the participant monitor. Monitor Viewsonic-VAB. Bypass protection of the inverter on FAN — we short-circuit the 7th leg of the chip. OBCP From the participant monitor.

BIT From the participant monitor. BIT deprotection of the SST 19 terminal with a white three-volt light-emitting diode on the ground. The brightness is good, at the output with this LED is kept 2.

BDFV From the participant monitor. DT 9 foot on the body through a kilo-ohm resistor, for example 47k. OZ From the participant monitor. Option with 24 pins. Output 20 prot through 1 kOhm on the chassis. The output from the circuit did not turn off. UBA From the participant monitor. UBA — the first leg on the mass. BD From the member monitor. BD you hang from the 3rd pin on the mass of the LED in the direct connection and the inverter works regardless of anything.

UBA for deprotection — 20k ohms per case from pin 6. OZGN From the participant monitor. OZGN 8pin after 10com to the ground. MPES From the participant monitor. MPES 4pin per weight. BIT is similar shamrin monitor. OZN From the participant monitor. DDA From the participant monitor. DDA, in my case, the protection was disconnected by the 6 pin of the IC on the case plazmoid monitor.

LED on the body.

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BIT3193 Remove Protection

Not all methods are checked by the author of the article, therefore can not be recommended to repairmen who do not have sufficient experience and theoretical knowledge. For the purpose of fire safety first of all and to prevent high voltage supply of lamps to other circuits in the LCD and LED TVs, the inverter LED driver protection is provided, which turns off the backlight or the entire TV in emergency modes. When repairing and diagnosing an LCD TV, it often becomes necessary to check the individual lighting components — lamps, transformers and other power elements, but it is not always easy to diagnose them due to the instantaneous blocking of the operation of the lamp power converter LED. Sometimes it is impossible even to determine the reason for leaving to the defense.

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